Weather & Climate in Stockton, CA

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

Stockton enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 47°F in January while summers reach 78°F in July. The area gets 315 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 33.4 inches. The area receives 1.5 inches of snow annually. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 16 feet.

Temperature

47°F Jan (9°C) 78°F Jul (25°C)

Annual Average	60.6°F
	12% above US avg
January Average	47°F (9°C)
July Average	78°F (25°C)
Sunny Days	315 days/yr

Geography

Elevation	16 ft (5 m)
Area	63.3 sq mi (163.9 km²)
Population Density	5,063/sq mi
Coordinates	37.9772°N, 121.3089°W
Timezone	America/Los_Angeles
County	San Joaquin County County
Nearest Airport	Sacramento International (SMF) 52 miles away

Precipitation & Snow

Annual Rainfall 33.4"

12% below US avg

Snowfall 1.5"

Wettest Month (Jan) 2.72"

Driest Month (Jul) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	98.6 / 100
Social Vulnerability	39.7 / 100
Community Resilience	47.0 / 100

Hazard Breakdown

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

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

Earthquake History

3,580 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	92 km	11 km
Apr 18, 1990	5 km NNW of Aromas, California	M5.4	120 km	5 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	137 km	9 km
Apr 18, 1990	4 km E of Interlaken, California	M5.1	118 km	7 km
Jan 16, 1993	9 km E of Gilroy, California	M4.9	108 km	7 km
Apr 18, 1990	4 km NNW of Aromas, California	M4.9	120 km	6 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	106 km	9 km
May 14, 2002	5 km SSW of Gilroy, California	M4.9	115 km	7 km
Apr 19, 1996	2 km E of Aromas, California	M4.9	124 km	5 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	148 km	7 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	78 km	8 km
Apr 18, 1990	4 km N of Aromas, California	M4.7	120 km	4 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	81 km	9 km
Mar 24, 1991	1 km NNE of Interlaken, California	M4.6	118 km	15 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	121 km	8 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	60 km	4 km
Jan 12, 2011	9 km SSE of San Juan Bautista, California	M4.5	135 km	8 km
Aug 3, 2006	5 km W of Glen Ellen, California	M4.5	120 km	9 km
Apr 4, 2023	1km NNW of Tres Pinos, CA	M4.4	131 km	10 km
Apr 7, 1990	3 km SSE of North Gate, California	M4.4	60 km	8 km

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

Tornado History

82 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 5 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1998	EF2	93 km	0.6 mi	0
Feb 7, 1978	EF2	81 km	1.9 mi	0
Apr 27, 1953	EF2	45 km	0.1 mi	0
Jan 11, 1951	EF2	98 km	5.7 mi	0
Mar 11, 2023	EF1	69 km	0.8 mi	0
Jan 10, 2023	EF1	50 km	0.4 mi	0
Dec 24, 2015	EF1	83 km	6.2 mi	0
Nov 15, 2015	EF1	66 km	3.0 mi	0
Jan 23, 2010	EF1	41 km	1.6 mi	0
Apr 14, 2006	EF1	45 km	0.5 mi	0
Dec 16, 2002	EF1	100 km	1.3 mi	0
May 5, 1998	EF1	98 km	0.3 mi	0
Dec 12, 1996	EF1	46 km	0.6 mi	0
Apr 19, 1988	EF1	79 km	1.0 mi	0
Apr 19, 1988	EF1	26 km	0.2 mi	0
Mar 22, 1983	EF1	83 km	2.0 mi	0
Jan 14, 1980	EF1	75 km	0.3 mi	0
Mar 4, 1978	EF1	74 km	1.0 mi	0
Mar 4, 1978	EF1	57 km	2.5 mi	0
Mar 1, 1978	EF1	48 km	1.5 mi	0

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

Tsunami History

5 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	76 km
1989	N. CALIFORNIA	Earthquake	1.0 m	62	116 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	102 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	109 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	101 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Clear Lake (168 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	168 km
Mono Lake Volcanic Field	Pyroclastic cone(s)	2,121 m (6,959 ft)	1790	200 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SCU LIGHTNING COMPLEX (405,787 acres, 2020).

Year	Name	Acres Burned	Distance
2020	SCU LIGHTNING COMPLEX	405,787	56 km
2015	BUTTE	72,894	71 km
2017	ATLAS	51,664	92 km
2007	LICK	47,424	85 km
2006	CANYON	36,851	69 km
1988	MILLER	35,750	85 km
1992	GULCH	18,019	76 km
2003	ANNIE	17,383	83 km
2024	CORRAL	16,138	40 km
2001	DARBY	14,734	91 km
2018	WAVERLY	12,238	41 km
2009	CORRAL	12,006	46 km
2001	CREEK	9,793	97 km
1992	MOCCASIN	9,565	90 km
1996	SCOTT	8,828	69 km
2015	WRAGG	8,455	87 km
2009	KNIGHT	8,140	97 km
2003	BIRD	7,727	48 km
2014	MONTICELLO	6,984	91 km
1984	SITE 300 3	6,911	39 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	47°F (9°C)	2.7 in	Wettest
February	51°F (11°C)	2.3 in
March	55°F (13°C)	2.3 in
April	60°F (15°C)	0.9 in
May	66°F (19°C)	0.4 in
June	72°F (22°C)	0.1 in
July	78°F (25°C)	0.0 in	Warmest, Driest
August	75°F (24°C)	0.1 in
September	72°F (22°C)	0.3 in
October	64°F (18°C)	0.8 in
November	53°F (12°C)	2.0 in
December	46°F (8°C)	2.0 in	Coldest

Stockton has a seasonal temperature swing of 32°F / from 46°F in December to 78°F in July. Total annual precipitation is 14.0 inches, with January being the wettest month (2.7") and July the driest (0.0").

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