California · Annual

Year 2025

Final Issued 2026-10-21 · version 1 · Baseline 1991-2020 · next update 2027-01-10

Downloads

1 Key messages and climate synopsis

Statewide mean temperature of 15.8 °C (+0.8 °C relative to 1991–2020): the 5th warmest year in the 1979–2025 series (tied with 2017, 2021).
Statewide precipitation of 591.3 mm, 105% of normal: the 20th wettest year in the 1979–2025 series.
The highest maximum temperature at GHCN stations was 51.1 °C at Death Valley Np on 14 July.
The largest 24-hour rainfall at GHCN stations was 286.3 mm at Bowman Dam on 22 December.
4 station records were broken (stations with at least 20 years of data).
Statewide heat waves: 5; cold waves: 1.
U.S. Drought Monitor: 0% of the state in drought (D1–D4) on 30 December 2025 (−32 points since 31 December 2024).
La Niña conditions of weak intensity in the equatorial Pacific (ONI OND 2025: −0.6 °C).

Source: NOAA NCEI

Mean temperature

15.8°C

+0.8 °C vs. normal (normal 15.0)

Slightly above normal

5th warmest of 47 (1979–2025) (tied with 2017, 2021)

Maximum temperature

22.6°C

+0.6 °C vs. normal (normal 22.0)

Slightly above normal

7th warmest of 47 (1979–2025) (tied with 2017, 2018)

Minimum temperature

9.0°C

+0.9 °C vs. normal (normal 8.1)

Slightly above normal

2nd warmest of 47 (1979–2025) (tied with 2015, 2017, 2024)

Precipitation

591.3mm

105% of normal (normal 565.3)

Near normal

20th wettest of 47 (1979–2025)

Station records

Source: NOAA NCEI

2 Global and regional climate drivers

Sea-surface temperature anomaly, Year 2025 (°C, 1991–2020)

Source: NOAA NCEI / PSL

Sea-surface temperature anomaly in the Niño regions (°C)

Region	Anomaly (°C)	Change from preceding period (°C)
Niño 1+2	0.2	0.3
Niño 3	−0.2	−0.5
Niño 3.4	−0.3	−0.7
Niño 4	−0.2	−0.8

Mean of the months in the period (OISST v2.1)

Source: NOAA CPC

La Niña conditions of weak intensity: the Oceanic Niño Index (ONI) for OND 2025 was −0.6 °C.

Source: NOAA CPC

Monthly Niño 3.4 anomaly, last 24 months (°C)

Source: NOAA CPC

Teleconnection indices

Index	Value	Phase
NAO	0.0	Neutral
AO	0.2	Neutral
PDO	−2.0	Negative

North Atlantic Oscillation (NAO); Arctic Oscillation (AO); Pacific Decadal Oscillation (PDO).

Source: NOAA CPC, NOAA NCEI

The Niño 3.4 anomaly was −0.31 °C (−0.71 °C relative to the preceding period).

Other indices: NAO +0.02 (neutral phase); AO +0.20 (neutral phase); PDO −1.99 (negative phase).

3 Precipitation

Statewide precipitation

591.3mm

105% of normal (normal 565.3)

Near normal

20th wettest of 47 (1979–2025)

Source: NOAA NCEI

Accumulated precipitation

Source: NOAA NCEI

Percent of normal precipitation (1991–2020)

Source: NOAA NCEI

Percent of normal by county

Source: NOAA NCEI

Precipitation by region

Region	Total (mm)	Normal (mm)	Difference (%)	Category
North Coast Drainage	1261.6	1250.6	0.9	Near normal
Sacramento Drainage	889.7	889.8	−0.0	Near normal
Northeast Interior Basins	558.7	494.6	13.0	Near normal
Central Coast Drainage	490.0	521.5	−6.0	Near normal
San Joaquin Drainage	508.2	472.1	7.6	Near normal
South Coast Drainage	486.3	393.9	23.5	Above normal
Southeast Desert Basin	185.3	156.5	18.4	Near normal

Source: NOAA NCEI

Stations with the largest precipitation excess

Region	County	Station	Altitude (m)	Anomaly (%)
Southeast Desert Basin	San Bernardino	Trona	517.0	137.4
South Coast Drainage	Los Angeles	Mt Wilson Cbs	1740.0	87.5
Southeast Desert Basin	Inyo	Death Valley Np	−59.0	80.2
South Coast Drainage	Los Angeles	Sandberg	1375.0	74.1
South Coast Drainage	Los Angeles	Van Nuys AP	239.0	71.8
South Coast Drainage	Los Angeles	Burbank Glendale Pasadena AP	223.0	66.7
South Coast Drainage	Ventura	Oxnard Wfo	16.0	66.1
South Coast Drainage	Los Angeles	Fairmont	933.0	62.9
San Joaquin Drainage	Kern	Bakersfield 5 NW	143.0	59.1
Southeast Desert Basin	San Bernardino	Twentynine Palms	602.0	58.6

Source: NOAA NCEI

Stations with the largest precipitation deficit

Region	County	Station	Altitude (m)	Anomaly (%)
Central Coast Drainage	Contra Costa	Concord Buchanan Fld	7.0	−65.0
North Coast Drainage	Humboldt	Orleans	123.0	−50.8
Sacramento Drainage	Shasta	Coleman Fisheries Stn	128.0	−48.6
Sacramento Drainage	Colusa	Colusa 2 SSW	15.0	−46.8
Central Coast Drainage	Alameda	Fremont	12.0	−46.5
North Coast Drainage	Napa	Calistoga	107.0	−42.1
North Coast Drainage	Sonoma	Graton	61.0	−38.4
Southeast Desert Basin	Riverside	Mecca Fire Stn	−56.0	−36.2
Southeast Desert Basin	Riverside	Hemet	552.0	−33.5
Central Coast Drainage	Contra Costa	Mt Diablo Junction	661.0	−30.3

Source: NOAA NCEI

Largest 24-hour rainfall at stations

Station	County	Max 24 h rainfall (mm)	Date
Bowman Dam	Nevada	286.3	2025-12-22
Gibraltar Dam #2	Santa Barbara	181.6	2025-12-24
Strawberry Valley 2	Butte	177.8	2025-12-22
Juncal Dam	Santa Barbara	175.8	2025-12-26
Loraine 5 NNE	Kern	172.7	2025-03-07
Blue Canyon Nyack AP	Placer	170.9	2025-12-21
Calaveras Big Trees	Calaveras	170.2	2025-11-13
De Sabla	Butte	169.9	2025-02-04
Mt Wilson Cbs	Los Angeles	157.0	2025-12-25
Placerville 3 ENE	El Dorado	157.0	2025-11-17

Source: NOAA NCEI

Statewide precipitation in each year

Source: NOAA NCEI

Monthly precipitation and 1991–2020 normal

Source: NOAA NCEI

Statewide accumulated precipitation was 591.3 mm, 105% of the 1991–2020 average (565.3 mm), category “Near normal”. It was the 20th wettest year in the 1979–2025 series.

The region with the highest percentage of normal was South Coast Drainage (123%) and the lowest was Central Coast Drainage (94%).

Source: NOAA NCEI

4 Temperature

Mean temperature

15.8°C

+0.8 °C vs. normal (normal 15.0)

Slightly above normal

5th warmest of 47 (1979–2025) (tied with 2017, 2021)

Source: NOAA NCEI

Mean temperature

Source: NOAA NCEI

Mean temperature anomaly (1991–2020)

Source: NOAA NCEI

Mean temperature anomaly by region

Source: NOAA NCEI

Stations with the largest positive anomaly

Region	County	Station	Altitude (m)	Anomaly (°C)
Southeast Desert Basin	Riverside	Desert Resorts Rgnl AP	−36.0	2.4
Sacramento Drainage	Shasta	Whiskeytown Rsvr	395.0	2.1
Sacramento Drainage	Nevada	Boca	1699.0	2.1
North Coast Drainage	Trinity	Trinity Rvr Hatchery	567.0	1.8
Central Coast Drainage	San Mateo	Skyline Ridge Preserve	692.0	1.8
Southeast Desert Basin	San Bernardino	Parker Rsvr	225.0	1.6
Sacramento Drainage	Yolo	Davis 2 WSW Exp Farm	18.0	1.6
Southeast Desert Basin	Imperial	Imperial	−20.0	1.6
Sacramento Drainage	Nevada	Nevada City	848.0	1.6
San Joaquin Drainage	Merced	Newman	27.0	1.5

Source: NOAA NCEI

Stations with the largest negative anomaly

Region	County	Station	Altitude (m)	Anomaly (°C)
North Coast Drainage	Napa	Markley Cove	146.0	−1.2
Central Coast Drainage	Alameda	Fremont	12.0	−0.8
South Coast Drainage	San Diego	N Is Nas	4.0	−0.8
North Coast Drainage	Napa	Angwin Pacific Union College	523.0	−0.7
Central Coast Drainage	San Francisco	San Francisco Oceanside	2.0	−0.6
South Coast Drainage	Ventura	Ojai	227.0	−0.5
South Coast Drainage	San Diego	San Diego Miramar Nas	145.0	−0.5
South Coast Drainage	Los Angeles	Burbank Valley Pump Plt	200.0	−0.4
South Coast Drainage	Los Angeles	Los Angeles Downtown/Usc	55.0	−0.4
North Coast Drainage	Siskiyou	Yreka	827.0	−0.3

Source: NOAA NCEI

Monthly statewide mean temperature anomaly

Source: NOAA NCEI

Statewide mean temperature anomaly in each year

Source: NOAA NCEI

The statewide mean temperature was 15.8 °C, 0.8 °C above the 1991–2020 average (15.0 °C), category “Slightly above normal”. It was the 5th warmest year in the 1979–2025 series (tied with 2017, 2021).

By region, the largest anomaly was in Northeast Interior Basins (+1.2 °C) and the smallest in Central Coast Drainage (+0.4 °C).

Source: NOAA NCEI

Maximum temperature

22.6°C

+0.6 °C vs. normal (normal 22.0)

Slightly above normal

7th warmest of 47 (1979–2025) (tied with 2017, 2018)

Source: NOAA NCEI

Maximum temperature anomaly (1991–2020)

Source: NOAA NCEI

Lowest and highest monthly mean maximum temperature by region

Region	Lowest value (°C)	Station	Highest value (°C)	Station
North Coast Drainage	15.0	Crescent City Mcnamara AP	24.9	Potter Valley Powerhouse
Sacramento Drainage	13.3	Tahoma	26.8	Colusa 2 SSW
Central Coast Drainage	14.9	San Francisco Oceanside	25.2	Tracy Pumping Plt
San Joaquin Drainage	13.4	Tuolumne Meadows Rs	28.1	Newman
South Coast Drainage	18.4	Mt Laguna #3	32.9	Ocotillo Wells 2W
Southeast Desert Basin	12.9	Aspendell	34.2	Desert Resorts Rgnl AP

Station monthly means (GHCN-Daily, ≥ 80% of days with data).

Source: NOAA NCEI

The statewide maximum temperature was 22.6 °C, 0.6 °C above the 1991–2020 average (22.0 °C), category “Slightly above normal”. It was the 7th warmest year in the 1979–2025 series (tied with 2017, 2018).

By region, the largest anomaly was in Northeast Interior Basins (+1.2 °C) and the smallest in Central Coast Drainage (+0.2 °C).

Source: NOAA NCEI

Minimum temperature

9.0°C

+0.9 °C vs. normal (normal 8.1)

Slightly above normal

2nd warmest of 47 (1979–2025) (tied with 2015, 2017, 2024)

Source: NOAA NCEI

Minimum temperature anomaly (1991–2020)

Source: NOAA NCEI

Lowest and highest monthly mean minimum temperature by region

Region	Lowest value (°C)	Station	Highest value (°C)	Station
North Coast Drainage	0.7	Tulelake	9.7	San Rafael-Civic Ctr
Sacramento Drainage	−3.0	Truckee-Tahoe AP	11.9	Whiskeytown Rsvr
Central Coast Drainage	5.9	Pinnacles Np	11.4	Hearst Castle
San Joaquin Drainage	−3.1	Tuolumne Meadows Rs	13.0	Bakersfield AP
South Coast Drainage	5.1	Campo	18.4	Ocotillo Wells 2W
Southeast Desert Basin	2.2	Aspendell	20.0	Death Valley Np

Station monthly means (GHCN-Daily, ≥ 80% of days with data).

Source: NOAA NCEI

The statewide minimum temperature was 9.0 °C, 0.9 °C above the 1991–2020 average (8.1 °C), category “Slightly above normal”. It was the 2nd warmest year in the 1979–2025 series (tied with 2015, 2017, 2024).

By region, the largest anomaly was in Northeast Interior Basins (+1.2 °C) and the smallest in South Coast Drainage (+0.6 °C).

Source: NOAA NCEI

5 Climate extremes and records

Highest maximum temperature

51.1°C

Death Valley Np · 2025-07-14

Lowest minimum temperature

−29.4°C

Tulelake · 2025-02-12

Highest 24 h rainfall

286.3mm

Bowman Dam · 2025-12-22

Source: NOAA NCEI

Highest maximum temperature by county

County	Station	Temperature (°C)	Date
Inyo	Death Valley Np	51.1	2025-07-14
San Diego	Ocotillo Wells 2W	50.0	2025-08-07
Riverside	Indio Fire Stn	48.9	2025-07-09
San Bernardino	Parker Rsvr	48.3	2025-08-08
Imperial	El Centro 2 SSW	47.8	2025-08-08
Kern	China Lake Naf	45.0	2025-08-12
Merced	Newman	44.4	2025-07-03
Trinity	Trinity Rvr Hatchery	43.9	2025-08-12
Fresno	Coalinga	43.3	2025-09-02
Humboldt	Orleans	43.3	2025-08-10
Los Angeles	Woodland Hills Pierce College	43.3	2025-08-22
Shasta	Whiskeytown Rsvr	43.3	2025-07-14
Yolo	Davis 2 WSW Exp Farm	43.3	2025-09-02
Siskiyou	Happy Camp Rs	42.8	2025-08-12
Kings	Lemoore Reeves Nas	42.2	2025-07-12
Napa	Markley Cove	42.2	2025-06-01
Santa Barbara	Gibraltar Dam #2	42.2	2025-08-23
Tulare	Lemon Cove	42.2	2025-08-11
Butte	Chico Univ Farm	41.7	2025-09-15
Glenn	Stony Gorge Rsvr	41.7	2025-08-24

The 20 most extreme of 56.

Source: NOAA NCEI

Lowest minimum temperature by county

County	Station	Temperature (°C)	Date
Siskiyou	Tulelake	−29.4	2025-02-12
Tuolumne	Tuolumne Meadows Rs	−25.0	2025-02-09
Modoc	Alturas Muni AP	−22.1	2025-02-12
Lassen	Susanville 2SW	−17.8	2025-12-17
Mono	Bodie California St Historic P	−17.2	2025-03-09
Nevada	Truckee-Tahoe AP	−17.2	2025-12-30
Shasta	Hat Creek	−15.6	2025-02-12
El Dorado	S Lake Tahoe AP	−13.9	2025-12-29
Placer	Tahoe City	−13.3	2025-02-12
Plumas	Portola	−13.3	2025-12-29
Inyo	Aspendell	−12.8	2025-02-09
Sierra	Verdi 2W	−12.8	2025-02-12
Tehama	Mineral	−12.8	2025-02-12
San Bernardino	Big Bear Lake	−9.4	2025-01-14
Tulare	Grant Grove	−9.4	2025-03-07
Los Angeles	Lancaster	−9.3	2025-01-13
Kern	Edwards Afb N Aux Airfield	−9.2	2025-01-22
Mariposa	Yosemite Village 12 W	−7.9	2025-03-14
San Diego	Campo	−7.8	2025-01-17
Riverside	Idyllwild Fire Dept	−6.7	2025-03-08

The 20 most extreme of 55.

Source: NOAA NCEI

Station records broken

Station	County	Variable	New value	Date	Previous record	Previous date
Bowman Dam	Nevada	Highest 24 h rainfall	286.3	2025-12-22	252.2	2022-12-31
Fall Rvr Mills	Shasta	Highest 24 h rainfall	87.9	2025-02-03	84.3	2019-01-17
Redding AP	Shasta	Highest 24 h rainfall	110.0	2025-02-02	100.6	1990-01-07
Alturas Muni AP	Modoc	Highest 24 h rainfall	54.1	2025-02-02	46.0	2023-06-25

Most extreme daily value of the period against the same period in all earlier years of record (at least 20 years; for weeks, the same calendar month).

Source: NOAA NCEI

Climate-extremes indices (statewide mean)

Index	Description	Value	Normal	Difference	Unit
TX90p	Warm days (Tmax > 90th percentile)	14.1	10.0	4.1	%
TN90p	Warm nights (Tmin > 90th percentile)	17.0	10.0	7.0	%
TX10p	Cool days (Tmax < 10th percentile)	9.1	10.0	−0.9	%
TN10p	Cold nights (Tmin < 10th percentile)	4.9	10.0	−5.1	%
FD	Frost days (Tmin < 0 °C)	38.2	50.6	−12.4	d
SU	Summer days (Tmax > 25 °C)	150.0	142.0	8.1	d
TR	Tropical nights (Tmin > 20 °C)	26.5	25.2	1.3	d
WSDI	Warm spell days (≥ 6 days)	11.5	—	—	d
CSDI	Cold spell days (≥ 6 days)	3.9	—	—	d
Rx1day	Maximum 1-day precipitation	47.3	45.9	1.4	mm
Rx5day	Maximum 5-day precipitation	113.5	95.9	17.5	mm
CDD	Consecutive dry days (< 1 mm)	99.4	115.5	−16.1	d
CWD	Consecutive wet days (≥ 1 mm)	7.0	7.3	−0.3	d

Percentile indices relative to calendar-day percentiles of 1991–2020 (5-day window); counts and maxima averaged over the state's grid cells.

Source: NOAA NCEI

Frost days by region

Source: NOAA NCEI

Heat and cold waves

Dates	Type	Details
2025-02-27 – 2025-03-01	Heat wave	Up to 74% of the state above the 90th percentile of Tmax. Regions: North Coast Drainage, Sacramento Drainage, Northeast Interior Basins, Central Coast Drainage, San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.
2025-03-25 – 2025-03-27	Heat wave	Up to 99% of the state above the 90th percentile of Tmax. Regions: North Coast Drainage, Sacramento Drainage, Northeast Interior Basins, Central Coast Drainage, San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.
2025-04-10 – 2025-04-12	Heat wave	Up to 80% of the state above the 90th percentile of Tmax. Regions: Sacramento Drainage, Northeast Interior Basins, Central Coast Drainage, San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.
2025-07-24 – 2025-07-28	Cold wave	Up to 60% of the state below the 10th percentile of Tmin. Regions: San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.
2025-08-22 – 2025-08-24	Heat wave	Up to 98% of the state above the 90th percentile of Tmax. Regions: North Coast Drainage, Sacramento Drainage, Northeast Interior Basins, Central Coast Drainage, San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.
2025-12-09 – 2025-12-19	Heat wave	Up to 78% of the state above the 90th percentile of Tmax. Regions: North Coast Drainage, Sacramento Drainage, Northeast Interior Basins, Central Coast Drainage, San Joaquin Drainage, South Coast Drainage and Southeast Desert Basin.

Wave: at least 3 consecutive days with at least half of the state above the 90th percentile of maximum temperature (heat) or below the 10th percentile of minimum temperature (cold). At most the 10 most intense are listed.

Source: NOAA NCEI

6 Drought

U.S. Drought Monitor, 30 December 2025

Source: National Drought Mitigation Center, USDA, NOAA

Share of the state by drought category, weekly U.S. Drought Monitor maps (%)

Source: National Drought Mitigation Center, USDA, NOAA

Standardized Precipitation Index (SPI) ending December 2025

Source: NOAA NCEI

Share of the state by SPI category

Source: NOAA NCEI

Counties with the lowest SPI-12

County	SPI-6	SPI-12	Category
Contra Costa	0.3	−0.7	Mild drought
Colusa	0.2	−0.7	Mild drought

Source: NOAA NCEI

U.S. Drought Monitor, map of 30 December 2025: 0% of the state in drought (D1–D4), 0% in severe drought or worse (D2–D4) and 0% in extreme or exceptional drought (D3–D4); 3% was abnormally dry or in drought (D0–D4).

On the map of 31 December 2024, 32% of the state was in drought: a change of −32 points over the period.

No part of the state was in drought (D1–D4).

SPI-12 (Jan–Dec 2025): statewide mean +0.34; 0% of the state in drought (SPI ≤ −1.0) and 0% in severe or extreme drought.

No county averaged an SPI-12 below −1.0.

SPI-6 (Jul–Dec 2025): 0% of the state in drought.

7 Severe weather and notable events

Notable events

Dates	Type	Area	Details
2025-02-04	Heavy rain	De Sabla	169.9 mm in 24 hours.
2025-03-07	Heavy rain	Loraine 5 NNE	172.7 mm in 24 hours.
2025-11-13	Heavy rain	Calaveras Big Trees	170.2 mm in 24 hours.
2025-11-17	Heavy rain	Placerville 3 ENE	157.0 mm in 24 hours.
2025-12-21	Heavy rain	Blue Canyon Nyack AP	170.9 mm in 24 hours.
2025-12-22	Heavy rain	Bowman Dam	286.3 mm in 24 hours.
2025-12-22	Heavy rain	Strawberry Valley 2	177.8 mm in 24 hours.
2025-12-24	Heavy rain	Gibraltar Dam #2	181.6 mm in 24 hours.
2025-12-25	Heavy rain	Mt Wilson Cbs	157.0 mm in 24 hours.
2025-12-26	Heavy rain	Juncal Dam	175.8 mm in 24 hours.

GDACS alerts and station rainfall of 150 mm or more in 24 hours (after quality control).

Source: GDACS, NOAA NCEI

No tropical cyclone came within 300 km of the state.

9 Outlook

Outlook for Jan–Mar 2026: most likely tercile

Source: NOAA CPC

Probability of each tercile by region, Jan–Mar 2026 (%)

Region	Precipitation: below	Precipitation: normal	Precipitation: above	Temp.: below	Temp.: normal	Temp.: above
North Coast Drainage	34.0	35.0	31.0	17.0	30.0	52.0
Sacramento Drainage	33.0	35.0	33.0	19.0	32.0	49.0
Northeast Interior Basins	33.0	34.0	33.0	20.0	31.0	49.0
Central Coast Drainage	34.0	32.0	34.0	16.0	30.0	54.0
San Joaquin Drainage	33.0	33.0	35.0	22.0	30.0	47.0
South Coast Drainage	31.0	35.0	34.0	22.0	30.0	48.0
Southeast Desert Basin	27.0	38.0	35.0	22.0	31.0	46.0

Source: NOAA CPC

Probabilistic outlook from the North American Multi-Model Ensemble (NMME), initialised in January 2026, relative to 1991–2020 terciles. It is not an official forecast: consult the National Weather Service and NOAA's Climate Prediction Center.

Precipitation, Jan–Mar 2026: above normal is favoured over 0% of the state and below normal over 0%.

Mean temperature, Jan–Mar 2026: above normal is favoured over 95% of the state and below normal over 0%.

10 Annexes

Report climate regions

Monthly precipitation by county (mm)

County	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Alameda	6.5	113.7	59.0	9.7	4.3	0.0	0.0	0.0	3.4	53.6	74.4	76.6
Alpine	39.4	197.4	150.1	34.9	17.4	8.9	24.0	38.0	28.6	84.8	109.0	195.9
Amador	35.8	214.6	173.2	43.9	8.3	2.5	2.1	3.4	8.1	60.6	196.2	159.3
Butte	39.1	323.7	167.8	42.8	30.5	0.9	0.1	3.6	8.3	64.2	142.1	292.9
Calaveras	26.6	179.5	166.5	43.7	5.2	1.8	1.0	1.7	8.1	55.4	186.7	136.3
Colusa	16.2	141.4	51.1	17.2	5.1	0.0	0.2	0.1	3.1	32.7	65.3	127.4
Contra Costa	6.4	127.1	42.4	6.6	3.3	0.0	0.0	0.0	2.0	39.8	65.8	67.8
Del Norte	155.0	284.7	435.1	62.4	35.8	1.6	0.0	3.9	59.4	82.3	194.5	337.0
El Dorado	50.2	284.6	214.8	58.1	14.9	3.3	3.9	7.8	12.9	85.2	185.2	253.7
Fresno	9.0	80.7	111.0	23.9	3.0	0.2	1.3	8.6	22.7	56.2	135.3	92.4
Glenn	11.1	163.0	68.2	16.3	7.3	0.0	0.1	0.9	5.9	55.6	102.7	140.3
Humboldt	130.1	336.0	361.7	62.1	26.1	0.6	0.6	2.4	73.8	98.6	235.0	398.8
Imperial	0.4	0.9	9.5	0.1	1.3	0.5	0.0	19.0	21.9	4.3	24.3	13.4
Inyo	3.9	21.7	20.7	2.5	7.1	0.8	3.1	5.6	18.8	11.2	61.5	35.5
Kern	10.7	21.0	51.9	6.9	3.3	0.1	0.1	1.1	9.3	33.2	92.8	68.9
Kings	5.9	17.3	40.0	6.9	0.0	0.0	0.0	0.0	16.9	30.3	54.1	57.1
Lake	30.5	299.5	143.4	36.1	8.3	0.0	0.3	0.1	22.9	58.5	160.8	282.3
Lassen	25.3	168.9	65.4	25.5	23.0	3.5	14.0	13.9	10.0	53.5	51.7	128.2
Los Angeles	25.1	83.5	57.4	9.2	6.6	1.0	0.0	0.3	3.3	40.0	141.2	138.3
Madera	15.5	127.7	164.1	37.4	7.5	0.2	0.1	9.3	19.4	59.8	120.9	93.7
Marin	26.7	256.3	92.4	13.9	3.2	0.0	0.1	0.2	4.7	44.1	124.7	166.8
Mariposa	24.1	195.9	214.6	52.6	8.8	0.6	0.2	7.0	14.0	68.7	148.4	132.9
Mendocino	58.0	296.4	190.0	47.1	11.1	0.0	0.2	1.2	48.6	68.1	212.9	370.1
Merced	9.2	46.1	66.8	10.0	0.1	0.0	0.0	0.1	2.9	37.1	77.1	38.4
Modoc	33.9	158.7	48.9	32.8	22.7	3.4	21.1	17.3	13.9	46.6	35.2	92.9
Mono	13.6	87.0	58.6	21.3	8.8	3.3	7.4	34.2	23.9	35.3	69.8	68.2
Monterey	7.6	126.1	91.9	17.0	1.1	0.1	0.5	0.0	8.9	43.9	124.7	95.2
Napa	17.1	222.7	78.4	13.5	4.3	0.0	0.2	0.0	6.9	46.3	103.8	156.9
Nevada	46.6	366.5	222.6	63.5	18.5	1.8	2.9	8.3	12.6	99.9	169.1	367.4
Orange	17.2	66.0	57.0	6.6	2.4	1.8	0.6	0.0	2.7	19.5	125.2	67.9
Placer	45.9	319.8	209.2	56.1	16.1	3.3	2.3	8.8	12.4	92.9	164.9	309.3
Plumas	35.3	301.3	181.1	47.4	25.0	2.5	2.7	12.4	15.1	69.8	125.5	336.0
Riverside	6.0	24.4	37.0	1.9	8.3	1.8	0.3	8.9	26.3	9.8	54.0	24.1
Sacramento	13.5	122.0	52.6	8.7	1.2	0.0	0.0	0.0	1.3	49.2	103.1	74.1
San Benito	8.4	78.5	75.9	16.1	0.9	0.0	0.5	0.0	7.2	45.2	106.3	85.8
San Bernardino	6.8	20.0	21.7	1.2	12.6	1.5	4.7	9.1	26.2	9.1	55.5	27.0
San Diego	15.2	49.8	84.3	9.0	9.2	1.3	0.1	8.1	17.1	12.2	59.3	34.9
San Francisco	—	—	—	—	—	—	—	—	—	—	—	—
San Joaquin	7.2	84.9	46.6	11.7	0.5	0.0	0.0	0.0	2.3	49.5	86.6	47.9
San Luis Obispo	7.8	107.5	73.7	9.4	0.2	0.2	0.3	0.0	11.3	40.2	113.1	111.4
San Mateo	11.4	181.5	76.7	16.0	6.2	0.1	0.9	0.1	5.7	43.0	107.7	114.9
Santa Barbara	9.2	93.8	76.4	11.4	0.4	0.0	0.1	0.1	13.1	39.2	182.0	195.0
Santa Clara	5.5	148.2	101.7	18.7	5.8	0.0	0.3	0.0	7.3	57.9	106.9	80.1
Santa Cruz	10.4	221.5	109.1	22.5	4.7	0.1	0.9	0.0	8.1	59.1	170.6	97.6
Shasta	47.6	292.3	174.6	33.1	20.3	0.5	7.5	11.3	34.2	67.4	152.1	277.6
Sierra	42.2	298.1	183.5	44.4	23.8	2.0	4.3	17.7	11.8	92.2	139.8	352.9
Siskiyou	58.5	221.8	169.0	46.7	15.7	1.7	16.2	16.1	38.6	68.7	87.2	223.9
Solano	9.4	151.4	39.4	5.0	3.5	0.0	0.0	0.0	2.6	39.8	75.8	91.0
Sonoma	38.0	289.5	126.0	26.7	3.8	0.0	0.1	0.0	20.9	54.2	158.0	225.3
Stanislaus	7.9	73.7	67.4	13.3	0.7	0.0	0.0	0.0	3.8	38.4	82.5	49.6
Sutter	21.9	126.9	47.2	11.6	3.9	0.0	0.0	0.1	0.5	31.9	65.9	108.4
Tehama	31.6	248.5	116.4	25.4	13.5	1.0	0.9	5.2	20.3	68.2	139.3	243.4
Trinity	84.4	393.7	236.4	46.6	15.7	0.1	12.0	8.3	46.2	95.4	209.1	386.2
Tulare	7.9	72.2	136.0	16.6	2.2	0.0	0.2	6.4	19.1	61.3	134.0	113.8
Tuolumne	31.6	244.1	195.3	64.5	12.8	4.1	4.4	17.6	20.1	70.2	160.5	173.9
Ventura	21.4	104.7	71.5	8.9	1.9	0.2	0.1	0.6	10.1	45.6	195.9	225.1
Yolo	11.3	154.2	46.6	6.6	3.0	0.0	0.1	0.0	1.7	43.5	83.1	100.4
Yuba	38.2	266.1	133.3	42.7	16.4	0.2	0.0	2.0	3.6	63.0	120.6	236.7

CSV

Source: NOAA NCEI

Monthly maximum temperature by region (°C)

Region	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
North Coast Drainage	11.7	10.0	12.3	17.6	21.6	26.0	28.3	29.3	25.5	17.4	14.2	11.4
Sacramento Drainage	12.3	11.4	13.2	19.1	24.6	29.5	31.2	32.4	27.9	19.5	15.5	12.2
Northeast Interior Basins	6.9	7.4	8.9	14.1	19.5	25.4	28.1	28.1	23.2	15.3	12.1	9.5
Central Coast Drainage	16.5	17.0	16.8	19.9	24.6	27.2	27.7	30.7	27.8	22.9	19.2	16.8
San Joaquin Drainage	13.5	15.3	15.6	20.2	25.8	31.0	31.9	33.2	28.8	21.7	17.0	12.8
South Coast Drainage	17.2	19.3	17.4	20.0	24.0	27.6	28.8	30.9	28.2	24.6	20.8	20.0
Southeast Desert Basin	15.5	20.5	20.6	25.3	30.4	36.3	37.5	38.3	32.7	27.3	21.6	19.1

CSV

Source: NOAA NCEI

Monthly mean temperature by region (°C)

Region	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
North Coast Drainage	6.2	5.4	7.3	10.9	14.0	18.0	20.5	21.1	18.7	12.1	9.9	7.5
Sacramento Drainage	6.1	6.0	7.5	11.9	16.5	20.9	22.5	23.4	20.2	13.1	10.2	7.6
Northeast Interior Basins	0.1	1.2	2.7	6.5	11.3	16.3	18.9	18.9	15.2	8.2	5.9	3.6
Central Coast Drainage	9.5	11.0	10.9	13.4	16.9	19.2	20.2	22.4	21.0	16.2	13.6	11.4
San Joaquin Drainage	6.8	9.2	9.4	13.2	17.9	22.5	23.4	24.9	21.6	15.0	11.7	8.5
South Coast Drainage	10.5	12.9	11.7	13.9	17.5	20.6	21.8	23.7	21.9	17.9	15.0	14.1
Southeast Desert Basin	9.0	13.8	13.9	17.9	23.0	28.4	29.8	30.6	26.1	20.2	15.6	13.1

CSV

Source: NOAA NCEI

Monthly minimum temperature by region (°C)

Region	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
North Coast Drainage	0.8	0.8	2.4	4.2	6.5	9.9	12.7	13.0	12.0	6.8	5.6	3.6
Sacramento Drainage	−0.1	0.6	1.9	4.7	8.4	12.2	13.8	14.4	12.6	6.6	5.0	3.1
Northeast Interior Basins	−6.8	−5.1	−3.6	−1.2	3.0	7.2	9.8	9.7	7.1	1.1	−0.4	−2.3
Central Coast Drainage	2.5	4.9	5.0	6.9	9.1	11.3	12.7	14.1	14.2	9.6	8.0	6.0
San Joaquin Drainage	0.0	3.1	3.1	6.2	9.9	14.0	15.0	16.5	14.3	8.3	6.5	4.3
South Coast Drainage	3.8	6.6	6.1	7.8	11.0	13.7	14.7	16.5	15.6	11.2	9.2	8.2
Southeast Desert Basin	2.5	7.1	7.2	10.5	15.5	20.5	22.0	23.0	19.6	13.1	9.7	7.1

CSV

Source: NOAA NCEI

Stations used

Id	Name	County	Latitude	Longitude	Altitude (m)	Days with data (Tmax) (%)
USC00040010	Acampo 5NE	San Joaquin	38.2	−121.2	26.5	0.0
USC00040029	Adin Rs	Modoc	41.2	−120.9	1280.8	0.0
USC00040136	Alpine	San Diego	32.8	−116.8	516.6	100.0
USC00040144	Altadena	Los Angeles	34.2	−118.1	343.5	0.0
USC00040162	Alturas 9 ENE	Modoc	41.5	−120.4	1617.6	0.0
USC00040176	Amboy	San Bernardino	34.6	−115.7	200.6	0.0
USC00040192	Anaheim	Orange	33.9	−117.8	70.7	100.0
USC00040212	Angwin Pacific Union College	Napa	38.6	−122.4	522.7	100.0
USC00040332	Arvin	Kern	35.2	−118.8	137.2	68.0
USC00040383	Auburn	Placer	38.9	−121.1	393.8	0.0
USC00040444	Bakersfield 5 NW	Kern	35.4	−119.1	143.3	99.0
USC00040521	Barstow	San Bernardino	34.9	−117.0	676.7	100.0
USC00040673	Ben Lomond #4	Santa Cruz	37.1	−122.1	132.6	90.0
USC00040693	Berkeley	Alameda	37.9	−122.3	94.5	17.0
USC00040741	Big Bear Lake	San Bernardino	34.2	−116.9	2058.3	100.0
USC00040790	Big Sur Stn	Monterey	36.2	−121.8	61.0	98.0
USC00040798	Big Tujunga Dam Fc46	Los Angeles	34.3	−118.2	709.0	0.0
USC00040820	Aspendell	Inyo	37.2	−118.6	2581.7	100.0
USC00040823	Bishop	Inyo	37.4	−118.4	1251.5	0.0
USC00040924	Blythe	Riverside	33.6	−114.6	81.7	0.0
USC00040931	Boca	Nevada	39.4	−120.1	1699.3	100.0
USC00040943	Bodie California St Historic P	Mono	38.2	−119.0	2551.2	27.0
USC00040983	Borrego Desert Park	San Diego	33.3	−116.4	246.9	99.0
USC00041018	Bowman Dam	Nevada	39.5	−120.7	1641.3	14.0
USC00041072	Bridgeport	Mono	38.3	−119.2	1972.1	10.0
USC00041159	Bucks Creek	Plumas	39.9	−121.3	576.4	0.0
USC00041194	Burbank Valley Pump Plt	Los Angeles	34.2	−118.3	199.6	100.0
USC00041244	Buttonwillow	Kern	35.4	−119.5	68.6	63.0
USC00041253	Cachuma Lake	Santa Barbara	34.6	−120.0	240.5	100.0
USC00041277	Calaveras Big Trees	Calaveras	38.3	−120.3	1431.0	35.0
USC00041312	Calistoga	Napa	38.6	−122.6	106.7	100.0
USC00041424	Campo	San Diego	32.6	−116.5	801.6	100.0
USC00041428	Camp Pardee	Calaveras	38.2	−120.8	200.6	0.0
USC00041614	Cedarville	Modoc	41.5	−120.2	1428.9	98.0
USC00041697	Cherry Valley Dam	Tuolumne	38.0	−119.9	1452.4	99.0
USC00041700	Chester	Plumas	40.3	−121.2	1387.1	50.0
USC00041715	Chico Univ Farm	Butte	39.7	−121.8	56.4	12.0
USC00041738	Chiriaco Summit	Riverside	33.7	−115.7	520.0	87.0
USC00041758	Chula Vista	San Diego	32.6	−117.1	17.1	99.0
USC00041806	Clearlake 4 SE	Lake	38.9	−122.6	411.2	97.0
USC00041838	Cloverdale	Sonoma	38.8	−123.0	121.9	96.0
USC00041864	Coalinga	Fresno	36.1	−120.4	204.2	33.0
USC00041879	Coarsegold 4SE	Madera	37.2	−119.7	676.0	0.0
USC00041907	Coleman Fisheries Stn	Shasta	40.4	−122.1	128.0	0.0
USC00041912	Colfax	Placer	39.1	−120.9	723.3	98.0
USC00041916	Colgate Powerhouse	Nevada	39.3	−121.2	181.4	0.0
USC00041948	Colusa 2 SSW	Colusa	39.2	−122.0	15.2	86.0
USC00042012	Corcoran Irrig Dist	Kings	36.1	−119.6	61.0	97.0
USC00042090	Covina City Yard Fc387B	Los Angeles	34.1	−117.9	185.0	0.0
USC00042214	Culver City	Los Angeles	34.0	−118.4	28.0	100.0
USC00042239	Cuyamaca	San Diego	33.0	−116.6	1414.3	100.0
USC00042294	Davis 2 WSW Exp Farm	Yolo	38.5	−121.8	18.3	99.0
USC00042319	Death Valley Np	Inyo	36.5	−116.9	−59.1	100.0
USC00042327	Deep Canyon Lab	Riverside	33.7	−116.4	365.8	0.0
USC00042346	Delano	Kern	35.8	−119.3	92.0	36.0
USC00042402	De Sabla	Butte	39.9	−121.6	826.0	15.0
USC00042500	Downieville	Sierra	39.6	−120.8	888.5	100.0
USC00042574	Dunsmuir Trtmt Pl	Shasta	41.2	−122.3	661.1	98.0
USC00042598	Eagle Mtn	Riverside	33.8	−115.5	296.6	73.0
USC00042706	El Cajon	San Diego	32.8	−116.9	150.9	100.0
USC00042709	El Capitan Dam	San Diego	32.9	−116.8	182.9	0.0
USC00042713	El Centro 2 SSW	Imperial	32.8	−115.6	−9.1	90.0
USC00042805	Elsinore	Riverside	33.7	−117.3	386.5	100.0
USC00042863	Escondido #2	San Diego	33.1	−117.1	182.9	100.0
USC00042920	Exchequer Dam	Mariposa	37.4	−120.2	128.0	0.0
USC00042934	Fairfield	Solano	38.3	−122.1	12.2	90.0
USC00042941	Fairmont	Los Angeles	34.7	−118.4	932.7	100.0
USC00042964	Fall Rvr Mills	Shasta	41.0	−121.4	1005.8	0.0
USC00043038	Fiddletown Dexter Rch	Amador	38.5	−120.7	661.4	0.0
USC00043083	Five Points 5 SSW	Fresno	36.4	−120.2	86.9	100.0
USC00043134	Foresthill Rs	Placer	39.0	−120.8	919.0	0.0
USC00043157	Ft Bidwell	Modoc	41.9	−120.2	1444.4	100.0
USC00043161	Ft Bragg 5 N	Mendocino	39.5	−123.8	37.5	96.0
USC00043182	Ft Jones Rs	Siskiyou	41.6	−122.8	831.8	88.0
USC00043191	Ft Ross	Sonoma	38.5	−123.2	34.1	76.0
USC00043244	Fremont	Alameda	37.5	−122.0	11.6	100.0
USC00043256	Fresno 5 NE	Fresno	36.8	−119.7	103.0	96.0
USC00043261	Friant Government Camp	Fresno	37.0	−119.7	131.1	99.0
USC00043357	Gasquet Rs	Del Norte	41.8	−124.0	118.0	0.0
USC00043402	Gibraltar Dam #2	Santa Barbara	34.5	−119.7	474.9	72.0
USC00043463	Glennville	Kern	35.7	−118.7	957.1	52.0
USC00043491	Gold Run 4 SW	Placer	39.2	−120.9	981.5	0.0
USC00043551	Grant Grove	Tulare	36.7	−119.0	2005.6	77.0
USC00043573	Grass Valley #2	Nevada	39.2	−121.1	731.5	99.0
USC00043578	Graton	Sonoma	38.4	−122.9	61.0	100.0
USC00043669	Groveland 2	Tuolumne	37.8	−120.2	853.4	7.0
USC00043714	Half Moon Bay	San Mateo	37.5	−122.4	8.2	100.0
USC00043747	Hanford 1 S	Kings	36.3	−119.6	72.2	100.0
USC00043761	Happy Camp Rs	Siskiyou	41.8	−123.4	348.1	52.0
USC00043800	Harry L Englebright Dam	Nevada	39.2	−121.3	243.8	0.0
USC00043824	Hat Creek	Shasta	40.9	−121.5	919.0	47.0
USC00043855	Hayfield Pumping Plt	Riverside	33.7	−115.6	417.6	98.0
USC00043875	Healdsburg	Sonoma	38.6	−122.9	53.9	100.0
USC00043882	Hearst Castle	San Luis Obispo	35.7	−121.2	465.1	100.0
USC00043891	Hell Hole	Placer	39.1	−120.4	1478.3	0.0
USC00043896	Hemet	Riverside	33.7	−116.9	552.0	0.0
USC00043914	Henshaw Dam	San Diego	33.2	−116.8	823.0	97.0
USC00043939	Hetch Hetchy	Tuolumne	38.0	−119.8	1179.6	90.0
USC00044025	Hollister 2	San Benito	36.8	−121.4	83.8	100.0
USC00044211	Idyllwild Fire Dept	Riverside	33.8	−116.7	1639.8	100.0
USC00044223	Imperial	Imperial	32.8	−115.6	−19.5	99.0
USC00044259	Indio Fire Stn	Riverside	33.7	−116.2	−6.4	100.0
USC00044297	Iron Mtn	San Bernardino	34.1	−115.1	281.0	96.0
USC00044303	Irvine Rch	Orange	33.7	−117.7	164.6	98.0
USC00044374	Jess Valley	Modoc	41.3	−120.3	1621.2	32.0
USC00044405	Joshua Tree	San Bernardino	34.1	−116.3	781.2	100.0
USC00044412	Julian Cdf	San Diego	33.1	−116.6	1284.7	100.0
USC00044422	Juncal Dam	Santa Barbara	34.5	−119.5	688.8	0.0
USC00044484	Kelsey 1 N	El Dorado	38.8	−120.8	609.6	0.0
USC00044500	Kentfield	Marin	38.0	−122.5	44.2	100.0
USC00044534	Kettleman City	Kings	36.0	−120.0	73.2	85.0
USC00044555	King City	Monterey	36.2	−121.1	97.5	100.0
USC00044710	Lakeside 2 E	San Diego	32.9	−116.9	210.3	0.0
USC00044712	Lake Solano	Solano	38.5	−122.0	57.0	100.0
USC00044838	Lava Beds Nat Mon	Siskiyou	41.7	−121.5	1455.4	93.0
USC00044881	Lee Vining	Mono	38.0	−119.1	2071.7	99.0
USC00044890	Lemon Cove	Tulare	36.4	−119.0	156.4	100.0
USC00044957	Lindsay	Tulare	36.2	−119.1	132.6	100.0
USC00044997	Livermore	Alameda	37.7	−121.8	161.2	100.0
USC00045026	Lodgepole	Tulare	36.6	−118.7	2052.8	0.0
USC00045064	Lompoc	Santa Barbara	34.7	−120.5	22.9	100.0
USC00045091	Long Valley 2	Riverside	33.8	−116.6	2554.2	0.0
USC00045100	Loraine 5 NNE	Kern	35.4	−118.4	1290.8	77.0
USC00045118	Los Banos	Merced	37.1	−120.9	36.6	100.0
USC00045119	Los Banos Arburua Rch	Merced	36.9	−120.9	256.9	0.0
USC00045151	Lost Hills	Kern	35.6	−119.7	87.8	0.0
USC00045311	Manzanita Lake	Shasta	40.5	−121.6	1752.6	12.0
USC00045360	Markley Cove	Napa	38.5	−122.1	146.3	100.0
USC00045449	Mccloud	Siskiyou	41.3	−122.1	985.4	73.0
USC00045502	Mecca Fire Stn	Riverside	33.6	−116.1	−55.8	0.0
USC00045532	Merced	Merced	37.3	−120.5	46.9	99.0
USC00045598	Middletown	Lake	38.7	−122.6	341.7	0.0
USC00045679	Mineral	Tehama	40.3	−121.6	1485.9	59.0
USC00045739	Modesto Irrig Dist	Mariposa	37.6	−120.0	26.8	0.0
USC00045795	Monterey	Monterey	36.6	−121.9	37.2	99.0
USC00045866	Morro Bay Fire Dept	San Luis Obispo	35.4	−120.8	36.0	0.0
USC00045915	Mt Diablo Junction	Contra Costa	37.9	−121.9	661.4	100.0
USC00045933	Mt Hamilton	Santa Clara	37.3	−121.6	1286.3	99.0
USC00045968	Mt Laguna #3	San Diego	32.9	−116.4	1804.4	100.0
USC00045983	Mt Shasta	Siskiyou	41.3	−122.3	1101.2	100.0
USC00046006	Mt Wilson Cbs	Los Angeles	34.2	−118.1	1740.4	79.0
USC00046027	Muir Woods	Marin	37.9	−122.6	67.1	0.0
USC00046074	Napa State Hospital	Napa	38.3	−122.3	10.7	92.0
USC00046136	Nevada City	Nevada	39.2	−121.0	847.6	98.0
USC00046154	New Cuyama Fire Stn	Santa Barbara	34.9	−119.7	658.4	100.0
USC00046168	Newman	Merced	37.3	−121.0	27.4	100.0
USC00046174	New Melones Dam Hq	Tuolumne	38.0	−120.5	292.6	100.0
USC00046175	Newport Beach Harbor	Orange	33.6	−117.9	3.0	100.0
USC00046194	Nicolaus #2	Sutter	38.9	−121.5	13.1	0.0
USC00046197	Niland	Imperial	33.3	−115.5	−18.3	0.0
USC00046252	N Fk Rs	Madera	37.2	−119.5	806.2	48.0
USC00046328	Oak Knoll W C	Siskiyou	41.8	−122.9	603.5	0.0
USC00046336	Oakland Museum	Alameda	37.8	−122.3	9.1	100.0
USC00046377	Oceanside Marina	San Diego	33.2	−117.4	3.0	100.0
USC00046386	Ocotillo Wells 2W	San Diego	33.2	−116.2	118.9	100.0
USC00046399	Ojai	Ventura	34.4	−119.2	227.1	100.0
USC00046506	Orland	Glenn	39.7	−122.2	77.4	53.0
USC00046508	Orleans	Humboldt	41.3	−123.5	122.8	98.0
USC00046521	Oroville	Butte	39.5	−121.6	52.1	73.0
USC00046572	Oxnard Wfo	Ventura	34.2	−119.1	15.8	100.0
USC00046602	Pacoima Dam Fc33A-E	Los Angeles	34.3	−118.4	472.4	0.0
USC00046624	Palmdale	Los Angeles	34.6	−118.1	796.1	100.0
USC00046635	Palm Springs	Riverside	33.8	−116.5	129.5	0.0
USC00046657	Palomar Mtn Obsy	San Diego	33.4	−116.8	1691.6	100.0
USC00046663	Palos Verdes Es Fc43D	Los Angeles	33.8	−118.4	67.1	0.0
USC00046675	Panoche 2 W	San Benito	36.6	−120.9	426.7	0.0
USC00046699	Parker Rsvr	San Bernardino	34.3	−114.2	224.9	96.0
USC00046719	Pasadena	Los Angeles	34.1	−118.1	263.3	100.0
USC00046730	Paso Robles	San Luis Obispo	35.6	−120.7	222.5	100.0
USC00046773	Pearblossom	Los Angeles	34.5	−117.9	945.2	100.0
USC00046826	Petaluma AP	Sonoma	38.3	−122.6	6.1	99.0
USC00046926	Pinnacles Np	San Benito	36.5	−121.2	398.4	100.0
USC00046940	Piru 2 ESE	Ventura	34.4	−118.8	217.0	0.0
USC00046946	Pit Rvr Ph 5	Shasta	41.0	−122.0	444.4	0.0
USC00046961	Placerville 3 ENE	El Dorado	38.8	−120.7	810.2	68.0
USC00047085	Portola	Plumas	39.8	−120.5	1478.3	96.0
USC00047109	Potter Valley Powerhouse	Mendocino	39.4	−123.1	310.3	99.0
USC00047111	Poway Valley	San Diego	33.0	−117.0	197.5	0.0
USC00047195	Quincy	Plumas	39.9	−120.9	1042.4	100.0
USC00047248	Rancho Bernardo	San Diego	33.0	−117.1	210.3	100.0
USC00047270	Raymond	Madera	37.2	−119.9	280.1	0.0
USC00047298	Redding Cdf	Shasta	40.5	−122.3	153.0	0.0
USC00047306	Redlands	San Bernardino	34.0	−117.2	429.8	0.0
USC00047326	Redondo Beach	Los Angeles	33.8	−118.4	43.3	100.0
USC00047339	Redwood City	San Mateo	37.5	−122.2	9.4	100.0
USC00047414	Richmond	Contra Costa	37.9	−122.4	6.1	76.0
USC00047470	Riverside Fire Stn 3	Riverside	34.0	−117.4	256.0	0.0
USC00047672	Salinas Dam	San Luis Obispo	35.3	−120.5	424.3	0.0
USC00047681	Salsipuedes Gaging Stn	Santa Barbara	34.6	−120.4	77.4	0.0
USC00047702	San Andreas 2	Calaveras	38.2	−120.7	335.3	0.0
USC00047741	San Diego Seaworld	San Diego	32.8	−117.2	4.3	100.0
USC00047767	San Francisco Oceanside	San Francisco	37.7	−122.5	2.4	85.0
USC00047776	San Gabriel Canyon Ph	Los Angeles	34.2	−117.9	226.8	0.0
USC00047779	San Gabriel Dam Fc425B-E	Los Angeles	34.2	−117.9	451.4	0.0
USC00047785	San Gabriel Fire Dept	Los Angeles	34.1	−118.1	110.6	0.0
USC00047813	San Jacinto	Riverside	33.8	−117.0	464.8	99.0
USC00047821	San Jose	Santa Clara	37.4	−121.9	14.9	100.0
USC00047851	San Luis Obispo Poly	San Luis Obispo	35.3	−120.7	93.9	100.0
USC00047880	San Rafael-Civic Ctr	Marin	38.0	−122.5	36.6	98.0
USC00047888	Santa Ana Fire Stn	Orange	33.7	−117.9	41.1	100.0
USC00047902	Santa Barbara	Santa Barbara	34.4	−119.7	4.9	100.0
USC00047933	Santa Margarita Boost	San Luis Obispo	35.4	−120.6	349.9	0.0
USC00047965	Santa Rosa	Sonoma	38.5	−122.7	50.6	95.0
USC00048014	Saugus Pwr Plt 1	Los Angeles	34.6	−118.5	658.7	0.0
USC00048045	Scotia	Humboldt	40.5	−124.1	41.5	100.0
USC00048122	Shafter 6E	Kern	35.5	−119.1	123.1	100.0
USC00048135	Shasta Dam	Shasta	40.7	−122.4	327.7	79.0
USC00048218	Sierraville Rs	Sierra	39.6	−120.4	1516.4	24.0
USC00048273	Skyline Ridge Preserve	San Mateo	37.3	−122.2	691.9	98.0
USC00048351	Sonoma	Sonoma	38.3	−122.5	29.6	98.0
USC00048353	Sonora	Tuolumne	38.0	−120.4	510.5	91.0
USC00048380	So Entrance Yosemite Np	Mariposa	37.5	−119.6	1538.3	66.0
USC00048407	S Lake Fs	Kern	35.6	−118.4	808.9	24.0
USC00048587	Stony Gorge Rsvr	Glenn	39.6	−122.5	243.8	100.0
USC00048606	Strawberry Valley 2	Butte	39.5	−121.2	1130.8	74.0
USC00048702	Susanville 2SW	Lassen	40.4	−120.7	1283.8	61.0
USC00048713	Sutter Hill Cdf	Amador	38.4	−120.8	483.4	70.0
USC00048758	Tahoe City	Placer	39.2	−120.1	1898.9	99.0
USC00048760	Tahoma	El Dorado	39.1	−120.1	1924.8	100.0
USC00048829	Tehachapi 4 SE	Kern	35.1	−118.4	1286.3	76.0
USC00048839	Tejon Rancho	Kern	35.0	−118.7	434.3	67.0
USC00048999	Tracy Carbona	San Joaquin	37.7	−121.3	41.1	93.0
USC00049001	Tracy Pumping Plt	Alameda	37.8	−121.6	18.6	98.0
USC00049026	Trinity Rvr Hatchery	Trinity	40.7	−122.8	567.2	100.0
USC00049035	Trona	San Bernardino	35.8	−117.4	516.6	98.0
USC00049040	Truckee-Tahoe AP	Nevada	39.3	−120.1	1798.3	98.0
USC00049053	Tulelake	Siskiyou	42.0	−121.5	1230.8	95.0
USC00049063	Tuolumne Meadows Rs	Tuolumne	37.9	−119.3	2649.9	89.0
USC00049073	Turlock #2	Stanislaus	37.5	−120.8	31.4	49.0
USC00049099	Twentynine Palms	San Bernardino	34.1	−116.0	602.0	99.0
USC00049111	Twitchell Dam	Santa Barbara	35.0	−120.3	177.4	100.0
USC00049152	U C L A	Los Angeles	34.1	−118.4	131.1	100.0
USC00049185	Upper San Leandro Filters	Alameda	37.8	−122.2	120.1	0.0
USC00049219	Vallejo	Solano	38.1	−122.2	103.9	99.0
USC00049226	Valley Ctr 1N	San Diego	33.2	−117.0	393.2	0.0
USC00049298	Verdi 2W	Sierra	39.5	−120.0	1654.8	100.0
USC00049325	Victorville	San Bernardino	34.5	−117.3	850.1	0.0
USC00049367	Visalia	Tulare	36.3	−119.3	92.4	88.0
USC00049378	Vista	San Diego	33.2	−117.2	131.1	99.0
USC00049390	Volta Ph	Shasta	40.5	−121.9	676.7	0.0
USC00049452	Wasco	Kern	35.6	−119.4	88.7	88.0
USC00049473	Watsonville Wtr Wks	Santa Cruz	36.9	−121.8	29.0	100.0
USC00049582	W Pt	Calaveras	38.4	−120.5	845.8	0.0
USC00049621	Whiskeytown Rsvr	Shasta	40.6	−122.5	394.7	83.0
USC00049699	Willows 6 W	Glenn	39.5	−122.3	71.3	97.0
USC00049742	Winters	Yolo	38.5	−122.0	41.1	100.0
USC00049785	Woodland Hills Pierce College	Los Angeles	34.2	−118.6	240.8	100.0
USC00049855	Yosemite Park Hq	Mariposa	37.8	−119.6	1224.7	77.0
USC00049866	Yreka	Siskiyou	41.7	−122.6	826.6	96.0
USC00049884	Yucca Mesa	San Bernardino	34.2	−116.4	1050.0	99.0
USW00000369	Mcolf Camp Pendleton Red Beach	San Diego	33.3	−117.5	27.1	0.0
USW00003102	Ontario Intl AP	San Bernardino	34.1	−117.6	281.6	100.0
USW00003104	Desert Resorts Rgnl AP	Riverside	33.6	−116.2	−36.0	80.0
USW00003122	Torrance AP	Los Angeles	33.8	−118.3	27.4	100.0
USW00003131	San Diego Montgomery Fld	San Diego	32.8	−117.1	127.4	100.0
USW00003144	Imperial Co AP	Imperial	32.8	−115.6	−16.8	88.0
USW00003154	Camp Pendleton Mcas	San Diego	33.3	−117.4	21.3	95.0
USW00003159	Lancaster	Los Angeles	34.7	−118.2	712.6	100.0
USW00003166	Fullerton Muni AP	Orange	33.9	−118.0	26.2	93.0
USW00003167	Hawthorne Muni AP	Los Angeles	33.9	−118.3	16.8	99.0
USW00003171	Riverside Muni AP	Riverside	34.0	−117.4	257.6	100.0
USW00003177	Carlsbad Mcclellan Palomar AP	San Diego	33.1	−117.3	95.4	100.0
USW00003178	San Diego Brown Fld	San Diego	32.6	−117.0	158.8	79.0
USW00003179	Chino AP	San Bernardino	34.0	−117.6	193.9	98.0
USW00004222	Redding 12 WNW	Shasta	40.7	−122.6	432.2	100.0
USW00023110	Lemoore Reeves Nas	Kings	36.3	−120.0	70.7	93.0
USW00023114	Edwards Afb	Kern	34.9	−117.9	705.9	96.0
USW00023119	March Afb	Riverside	33.9	−117.2	468.2	98.0
USW00023122	Norton Afb	San Bernardino	34.1	−117.2	338.9	97.0
USW00023129	Long Beach Daugherty AP	Los Angeles	33.8	−118.1	10.4	99.0
USW00023130	Van Nuys AP	Los Angeles	34.2	−118.5	239.3	100.0
USW00023131	Victorville So Ca AP	San Bernardino	34.6	−117.4	869.0	96.0
USW00023136	Camarillo AP	Ventura	34.2	−119.1	21.6	100.0
USW00023152	Burbank Glendale Pasadena AP	Los Angeles	34.2	−118.4	222.8	100.0
USW00023155	Bakersfield AP	Kern	35.4	−119.1	149.4	100.0
USW00023157	Bishop AP	Inyo	37.4	−118.4	1252.7	100.0
USW00023158	Blythe Asos	Riverside	33.6	−114.7	120.4	97.0
USW00023161	Barstow-Daggett AP	San Bernardino	34.9	−116.8	584.9	100.0
USW00023174	Los Angeles Intl AP	Los Angeles	33.9	−118.4	29.6	100.0
USW00023179	Needles AP	San Bernardino	34.8	−114.6	270.7	92.0
USW00023182	Palmdale AP	Los Angeles	34.6	−118.1	764.7	100.0
USW00023187	Sandberg	Los Angeles	34.7	−118.7	1374.6	100.0
USW00023188	San Diego Intl AP	San Diego	32.7	−117.2	4.6	99.0
USW00023190	Santa Barbara Muni AP	Santa Barbara	34.4	−119.8	2.4	100.0
USW00023191	Avalon Catalina AP	Los Angeles	33.4	−118.4	477.0	98.0
USW00023199	El Centro Naf	Imperial	32.8	−115.7	−14.0	86.0
USW00023202	Travis Afb	Solano	38.3	−121.9	18.0	99.0
USW00023206	Sacramento Mather Afb	Sacramento	38.6	−121.3	39.9	97.0
USW00023208	Sacramento Mcclellan Afb	Sacramento	38.7	−121.4	25.0	99.0
USW00023213	Santa Rosa Sonoma Co AP	Sonoma	38.5	−122.8	36.3	100.0
USW00023225	Blue Canyon Nyack AP	Placer	39.3	−120.7	1611.2	98.0
USW00023230	Oakland Intl AP	Alameda	37.7	−122.2	1.5	100.0
USW00023232	Sacramento AP Asos	Sacramento	38.5	−121.5	5.8	100.0
USW00023233	Salinas AP	Monterey	36.7	−121.6	22.3	99.0
USW00023234	San Francisco Intl AP	San Mateo	37.6	−122.4	3.0	100.0
USW00023237	Stockton AP	San Joaquin	37.9	−121.2	8.2	100.0
USW00023243	Lompoc AP	Santa Barbara	34.7	−120.5	26.8	0.0
USW00023244	Moffett Fed Airfield	Santa Clara	37.4	−122.0	11.9	98.0
USW00023254	Concord Buchanan Fld	Contra Costa	38.0	−122.1	7.0	100.0
USW00023257	Merced Muni AP	Merced	37.3	−120.5	46.3	100.0
USW00023258	Modesto AP	Stanislaus	37.6	−121.0	26.5	99.0
USW00023259	Monterey Peninsul AP	Monterey	36.6	−121.8	48.8	100.0
USW00023271	Sacramento 5 ESE	Sacramento	38.6	−121.4	11.6	41.0
USW00023272	San Francisco Dwtn	San Francisco	37.8	−122.4	45.7	98.0
USW00023273	Santa Maria Public AP	Santa Barbara	34.9	−120.5	74.1	100.0
USW00023275	Ukiah Muni AP	Mendocino	39.1	−123.2	183.8	100.0
USW00023277	Watsonville Muni AP	Santa Cruz	36.9	−121.8	49.4	99.0
USW00023285	Livermore Muni AP	Alameda	37.7	−121.8	119.8	100.0
USW00023293	San Jose	Santa Clara	37.4	−121.9	14.9	100.0
USW00024213	Eureka Wfo Woodley Is	Humboldt	40.8	−124.2	6.1	100.0
USW00024215	Mt Shasta	Siskiyou	41.3	−122.3	1083.0	97.0
USW00024216	Red Bluff Muni AP	Tehama	40.2	−122.3	107.9	96.0
USW00024257	Redding AP	Shasta	40.5	−122.3	152.7	100.0
USW00024259	Montague Siskiyou AP	Siskiyou	41.8	−122.5	806.2	99.0
USW00024283	Arcata Eureka AP	Humboldt	41.0	−124.1	64.3	100.0
USW00024286	Crescent City Mcnamara AP	Del Norte	41.8	−124.2	17.1	100.0
USW00053119	Hanford Muni AP	Kings	36.3	−119.6	75.9	100.0
USW00053120	Ramona AP	San Diego	33.0	−116.9	422.1	100.0
USW00053121	Oceanside Muni AP	San Diego	33.2	−117.3	9.1	97.0
USW00053139	Stovepipe Wells 1 SW	Inyo	36.6	−117.1	25.6	100.0
USW00053144	Edwards Afb N Aux Airfield	Kern	35.0	−117.9	695.9	97.0
USW00053150	Yosemite Village 12 W	Mariposa	37.8	−119.8	2017.8	100.0
USW00053151	Fallbrook 5 NE	Riverside	33.4	−117.2	347.5	100.0
USW00053152	Santa Barbara 11 W	Santa Barbara	34.4	−119.9	5.5	99.0
USW00053175	Corona Municipal AP	Riverside	33.9	−117.6	162.5	99.0
USW00093104	China Lake Naf	Kern	35.7	−117.7	680.0	81.0
USW00093107	San Diego Miramar Nas	San Diego	32.9	−117.1	145.4	98.0
USW00093110	Oxnard Ventura Co AP	Ventura	34.2	−119.2	11.9	100.0
USW00093111	Pt Mugu Nf	Ventura	34.1	−119.1	3.7	94.0
USW00093112	N Is Nas	San Diego	32.7	−117.2	4.3	98.0
USW00093115	Imperial Beach Ream Fld Nas	San Diego	32.6	−117.1	7.3	68.0
USW00093116	San Nicolas Is	Ventura	33.2	−119.5	161.2	75.0
USW00093117	San Clemente Is Naas	Los Angeles	33.0	−118.6	55.5	62.0
USW00093121	Twentynine Palms Mc	San Bernardino	34.3	−116.2	643.1	0.0
USW00093134	Los Angeles Downtown/Usc	Los Angeles	34.0	−118.3	54.6	100.0
USW00093138	Palm Springs Asos	Riverside	33.8	−116.5	124.7	100.0
USW00093184	Santa Ana John Wayne AP	Orange	33.7	−117.9	13.1	96.0
USW00093193	Fresno Yosemite Intl	Fresno	36.8	−119.7	101.8	100.0
USW00093197	Santa Monica Muni AP	Los Angeles	34.0	−118.4	53.3	100.0
USW00093205	Marysville AP (Asos)	Yuba	39.1	−121.6	18.9	100.0
USW00093206	San Luis Obispo Mcchesney Fld	San Luis Obispo	35.2	−120.6	55.8	100.0
USW00093209	Paso Robles Muni AP	San Luis Obispo	35.7	−120.6	249.9	100.0
USW00093210	Oroville Muni AP	Butte	39.5	−121.6	57.0	100.0
USW00093214	Vandenberg Afb	Santa Barbara	34.7	−120.6	116.1	90.0
USW00093216	Beale Afb	Yuba	39.1	−121.4	38.1	98.0
USW00093225	Sacramento Metro AP	Sacramento	38.7	−121.6	7.3	100.0
USW00093227	Napa Co AP	Napa	38.2	−122.3	4.9	99.0
USW00093228	Hayward Air Terminal	Alameda	37.7	−122.1	9.4	100.0
USW00093230	S Lake Tahoe AP	El Dorado	38.9	−120.0	1907.1	100.0
USW00093241	Vacaville/Nut Tree AP Asos	Solano	38.4	−122.0	31.7	100.0
USW00093242	Madera Muni AP	Madera	37.0	−120.1	76.5	100.0
USW00093243	Merced 23 WSW	Merced	37.2	−120.9	23.8	100.0
USW00093245	Bodega 6 WSW	Sonoma	38.3	−123.1	19.2	99.0
USW00094299	Alturas Muni AP	Modoc	41.5	−120.6	1335.9	99.0

CSV

Source: NOAA NCEI

11 Glossary, methodology and sources

Anomaly: difference between the observed value and its 1991–2020 normal. Percent of normal: observed total divided by the normal, times 100. Station record: most extreme daily value for the same month in all earlier years of record (at least 20 years).

Temperature: NOAA nClimGrid-Daily. Precipitation: NOAA nClimGrid-Daily. nClimGrid-Daily is the grid behind NOAA's official statewide values; it is averaged here from 1/24° to 1/8° (about 12 km). Mean temperature is (Tmax + Tmin)/2. Statewide, regional and county averages are weighted by the area of each grid cell inside each polygon. Temperature maps, frost days and annex tables are given by region; regions are NOAA NCEI climate divisions, with each county in the division of its centroid. Recent weeks use NCEI's preliminary file of the month; such reports are marked preliminary and updated when the final file is published. Normals refer to 1991-2020; ranks compare values rounded to one decimal. Stations: GHCN-Daily (NOAA NCEI) cooperative and first-order stations; values flagged by its quality control are discarded, as are daily values more than 5 robust standard deviations from the station median and variables whose monthly anomaly differs by more than 3 °C from the gridded analysis. Period means require at least 80% of days with data and station normals at least 20 complete years. This report is generated automatically and does not replace official information from the National Weather Service or the state climatologist.

Source	Product	License	Citation
NOAA CPC	ONI, Niño-region SST indices (OISST v2.1), NAO and AO	Public domain (NOAA)	NOAA Climate Prediction Center climate indices.
NOAA NCEI / PSL	Extended Reconstructed SST v5 (ERSST v5), 2°	Public domain (NOAA)	Huang et al. (2017), J. Climate, doi:10.1175/JCLI-D-16-0836.1
GDACS	Global Disaster Alert and Coordination System event list	See provider terms	—
NOAA NCEI	GHCN-Daily	Public domain (NOAA)	Menne et al. (2012), J. Atmos. Oceanic Technol., doi:10.1175/JTECH-D-11-00103.1
NOAA NCEI	IBTrACS v04r01 tropical-cyclone best tracks	Public domain (NOAA)	Knapp et al. (2010), Bull. Amer. Meteor. Soc., doi:10.1175/2009BAMS2755.1
NOAA NCEI	Pacific Decadal Oscillation index (ERSST v5)	Public domain (NOAA)	—
NOAA NCEI	nClimGrid-Daily, contiguous United States (1/24°, averaged here to 1/8°)	Public domain (NOAA)	Durre, I., et al. (2022). NOAA's nClimGrid-Daily Version 1. NOAA National Centers for Environmental Information. doi:10.25921/c4gt-r169
NOAA CPC	North American Multi-Model Ensemble (NMME) tercile probabilities, 1°	Public domain (NOAA)	Kirtman et al. (2014), Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-12-00050.1
National Drought Mitigation Center, USDA, NOAA	U.S. Drought Monitor, weekly maps and area statistics	Free to use with credit (NDMC)	The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture and the National Oceanic and Atmospheric Administration. Map courtesy of NDMC.
US Census Bureau TIGERweb	US Census Bureau, TIGERweb counties (generalised)	Public domain (US Government work)	—

Generated by ClimaBulletin (climabulletin.org), open source. Questions and comments: [email protected].