Weather & Climate in East Foothills, CA

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

East Foothills enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 51°F in January while summers reach 71°F in July. The area gets 330 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 16.1 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 470 feet.

Temperature

51°F Jan (11°C) 71°F Jul (21°C)

Annual Average	61.5°F
	14% above US avg
January Average	51°F (11°C)
July Average	71°F (21°C)
Sunny Days	330 days/yr

Geography

Elevation	470 ft (143 m)
Area	2.1 sq mi (5.4 km²)
Population Density	4,052/sq mi
Coordinates	37.3826°N, 121.8137°W
Timezone	America/Los_Angeles
County	Santa Clara County County
Nearest Airport	Norman Y Mineta San Jose International (SJC) 6 miles away

Precipitation & Snow

Annual Rainfall 16.1"

58% below US avg

Snowfall 0.0"

Wettest Month (Jan) 5.75"

Driest Month (Jul) 0.08"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very High
Risk Score	99.8 / 100
Social Vulnerability	17.2 / 100
Community Resilience	72.6 / 100

Hazard Breakdown

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

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

Earthquake History

4,190 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	102 km	11 km
Apr 18, 1990	5 km NNW of Aromas, California	M5.4	52 km	5 km
Oct 21, 2012	24 km NE of San Lucas, California	M5.3	147 km	9 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	77 km	9 km
Apr 18, 1990	4 km E of Interlaken, California	M5.1	49 km	7 km
Jan 16, 1993	9 km E of Gilroy, California	M4.9	51 km	7 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	102 km	7 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	123 km	9 km
Apr 18, 1990	4 km NNW of Aromas, California	M4.9	52 km	6 km
Apr 19, 1996	2 km E of Aromas, California	M4.9	58 km	5 km
May 14, 2002	5 km SSW of Gilroy, California	M4.9	50 km	7 km
Apr 18, 1990	4 km N of Aromas, California	M4.7	53 km	4 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	9 km	8 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	14 km	9 km
Aug 27, 2011	21 km NE of Soledad, California	M4.6	105 km	8 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	97 km	8 km
Mar 24, 1991	1 km NNE of Interlaken, California	M4.6	47 km	15 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	46 km	4 km
Jan 12, 2011	9 km SSE of San Juan Bautista, California	M4.5	74 km	8 km
Aug 3, 2006	5 km W of Glen Ellen, California	M4.5	129 km	9 km

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

Tornado History

69 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 11 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1998	EF2	19 km	0.6 mi	0
Mar 11, 1985	EF2	70 km	0.5 mi	0
Apr 27, 1953	EF2	78 km	0.1 mi	0
Jan 11, 1951	EF2	27 km	5.7 mi	0
Dec 14, 2024	EF1	42 km	0.3 mi	0
Nov 15, 2015	EF1	90 km	3.0 mi	0
Jan 23, 2010	EF1	59 km	1.6 mi	0
Apr 14, 2006	EF1	78 km	0.5 mi	0
Mar 20, 2005	EF1	61 km	3.0 mi	0
Dec 20, 2001	EF1	46 km	0.5 mi	0
May 5, 1998	EF1	27 km	0.3 mi	0
Dec 12, 1996	EF1	95 km	0.6 mi	0
Dec 6, 1992	EF1	87 km	1.0 mi	0
Dec 6, 1992	EF1	93 km	7.0 mi	0
Jan 14, 1980	EF1	12 km	0.3 mi	0
Mar 4, 1978	EF1	91 km	2.5 mi	0
Mar 4, 1978	EF1	85 km	1.0 mi	0
Mar 1, 1978	EF1	84 km	1.5 mi	0
May 31, 1967	EF1	79 km	0.1 mi	0
Apr 22, 1967	EF1	99 km	1.0 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	43 km
1989	N. CALIFORNIA	Earthquake	1.0 m	62	39 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	45 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	70 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	22 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (195 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	195 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	30 km
2020	CZU AUG LIGHTNING	85,894	44 km
2007	LICK	47,424	39 km
2006	CANYON	36,851	42 km
2003	ANNIE	17,383	53 km
2024	CORRAL	16,138	42 km
2009	CORRAL	12,006	37 km
1985	LEXINGTON	11,550	28 km
2009	LOCKHEED	8,287	49 km
2003	BIRD	7,727	46 km
1984	SITE 300 3	6,911	42 km
2005	TESLA	6,638	38 km
2003	DEL PUERTO	6,441	37 km
2006	MIDWAY	6,243	42 km
2020	CREWS	5,802	52 km
1993	PGE 4	5,594	100 km
2003	DEVIL	4,975	25 km
2003	JUMP	4,817	26 km
2016	LOMA	4,380	30 km
2008	SUMMIT	3,642	37 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	51°F (11°C)	5.8 in	Wettest
February	49°F (9°C)	4.7 in
March	50°F (10°C)	4.4 in
April	54°F (12°C)	2.1 in
May	59°F (15°C)	0.5 in
June	65°F (18°C)	0.2 in
July	71°F (21°C)	0.1 in	Driest
August	72°F (22°C)	0.2 in	Warmest
September	69°F (21°C)	0.4 in
October	63°F (17°C)	1.5 in
November	54°F (12°C)	4.2 in
December	47°F (9°C)	4.5 in	Coldest

East Foothills has a seasonal temperature swing of 25°F / from 47°F in December to 72°F in August. Total annual precipitation is 28.4 inches, with January being the wettest month (5.8") and July the driest (0.1").

View full profile of East Foothills, CA →