Weather & Climate in Winters, CA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Winters enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 47°F in January while summers reach 77°F in July. The area gets 326 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 23.8 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 132 feet.

Temperature

47°F Jan (8°C) 77°F Jul (25°C)

Annual Average	62.6°F
	16% above US avg
January Average	47°F (8°C)
July Average	77°F (25°C)
Sunny Days	326 days/yr

Geography

Elevation	132 ft (40 m)
Area	3.0 sq mi (7.7 km²)
Population Density	2,535/sq mi
Coordinates	38.5333°N, 121.9755°W
Timezone	America/Los_Angeles
County	Yolo County County
Nearest Airport	Sacramento International (SMF) 24 miles away

Precipitation & Snow

Annual Rainfall 23.8"

37% below US avg

Snowfall 0.0"

Wettest Month (Jan) 4.57"

Driest Month (Jul) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	91.4 / 100
Social Vulnerability	24.2 / 100
Community Resilience	69.4 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Moderate
Wildfire	Relatively Low
Flood	Relatively Moderate
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Low
Winter Weather	Very Low
Lightning	Relatively Low
Drought	Very High
Cold Wave	No Rating
Landslide	Relatively Low
Volcano	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4,269 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Aug 24, 2014	The 2014 South Napa, California Earthquake	M6.0	46 km	11 km
Aug 10, 2016	20 km NNE of Upper Lake, California	M5.1	114 km	14 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	42 km	9 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	69 km	7 km
Apr 18, 2007	15 km N of Potter Valley, California	M4.8	142 km	5 km
May 12, 2006	7 km W of Cobb, California	M4.7	79 km	4 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	132 km	8 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	138 km	9 km
Jan 2, 2025	4 km NW of Cobb, CA	M4.7	76 km	1 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	93 km	8 km
Jan 11, 2000	6 km N of Geyserville, California	M4.6	86 km	6 km
Feb 18, 2004	4 km WNW of Cobb, California	M4.6	77 km	3 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	136 km	4 km
Jan 12, 2014	8 km W of Cobb, California	M4.5	79 km	2 km
Sep 25, 2012	3 km N of Talmage, California	M4.5	125 km	11 km
Aug 3, 2006	5 km W of Glen Ellen, California	M4.5	57 km	9 km
Jun 8, 2024	7 km NW of The Geysers, CA	M4.5	80 km	4 km
Sep 19, 1992	7 km NW of Cobb, California	M4.5	80 km	3 km
Apr 24, 2007	7 km WSW of Cobb, California	M4.5	77 km	2 km
Jun 3, 2023	2km NW of The Geysers, CA	M4.5	75 km	4 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

84 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Feb 7, 1978	EF2	49 km	1.9 mi	0
Jun 1, 1958	EF2	92 km	15.0 mi	0
Dec 24, 2015	EF1	77 km	6.2 mi	0
Oct 22, 2012	EF1	66 km	2.0 mi	0
Oct 22, 2012	EF1	72 km	0.3 mi	0
Oct 22, 2012	EF1	96 km	4.0 mi	0
Mar 18, 2011	EF1	64 km	0.1 mi	0
Jan 23, 2010	EF1	71 km	1.6 mi	0
Jan 27, 2005	EF1	100 km	0.5 mi	0
Dec 5, 1998	EF1	64 km	1.5 mi	0
Dec 23, 1996	EF1	89 km	6.0 mi	0
Feb 22, 1996	EF1	66 km	1.0 mi	0
Dec 2, 1992	EF1	74 km	3.0 mi	0
Dec 2, 1992	EF1	76 km	1.0 mi	0
Dec 2, 1992	EF1	82 km	7.5 mi	0
Apr 19, 1988	EF1	83 km	0.2 mi	0
Apr 19, 1988	EF1	72 km	1.0 mi	0
Mar 22, 1983	EF1	58 km	2.0 mi	0
Feb 27, 1983	EF1	64 km	0.8 mi	0
Jun 28, 1970	EF1	92 km	2.3 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1868	N. CALIFORNIA	Eruption + Earthquake	4.5 m	30	93 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	118 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	103 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	148 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (84 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	84 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: HENNESSEY (314,241 acres, 2020).

Year	Name	Acres Burned	Distance
2020	HENNESSEY	314,241	29 km
2015	ROCKY	96,125	59 km
2018	COUNTY	92,450	23 km
1996	FORK	83,209	100 km
2019	KINCADE	77,780	71 km
2015	VALLEY	77,507	62 km
2020	GLASS	68,020	50 km
2017	NUNS	56,883	50 km
2020	WALLBRIDGE	55,194	90 km
2017	ATLAS	51,664	30 km
2004	RUMSEY	39,335	36 km
1999	SIXTEEN	37,162	43 km
2017	TUBBS	36,981	61 km
1988	MILLER	35,750	15 km
2017	POCKET	18,691	83 km
2012	SIXTEEN COMPLEX	18,191	60 km
2006	ZAM ASSIST	14,404	25 km
2008	WALKER	12,441	74 km
2004	GEYSERS	12,075	70 km
1995	VISION	11,931	95 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	47°F (8°C)	4.6 in	Wettest
February	51°F (10°C)	3.9 in
March	55°F (13°C)	3.1 in
April	59°F (15°C)	1.0 in
May	67°F (19°C)	0.5 in
June	72°F (22°C)	0.2 in
July	77°F (25°C)	0.0 in	Warmest, Driest
August	75°F (24°C)	0.0 in
September	72°F (22°C)	0.3 in
October	64°F (18°C)	1.1 in
November	53°F (12°C)	3.0 in
December	46°F (8°C)	3.2 in	Coldest

Winters has a seasonal temperature swing of 32°F / from 46°F in December to 77°F in July. Total annual precipitation is 20.7 inches, with January being the wettest month (4.6") and July the driest (0.0").

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