Weather & Climate in Pleasanton, CA

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

Pleasanton enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 48°F in January while summers reach 72°F in July. Annual precipitation totals 15.2 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 49. 53% of days have good air quality. The city sits at an elevation of 348 feet.

Temperature

48°F Jan (9°C) 72°F Jul (22°C)
Annual Average59.9°F
11% above US avg
January Average48°F (9°C)
July Average72°F (22°C)

Geography

Elevation348 ft (106 m)
Area24.3 sq mi (62.9 km²)
Population Density3,210/sq mi
Coordinates37.6672°N, 121.8812°W
TimezoneAmerica/Los_Angeles
CountyAlameda County County
Nearest AirportMetro Oakland International (OAK)
19 miles away

Precipitation & Snow

Annual Rainfall 15.2"
60% below US avg
Snowfall 0.0"
Wettest Month (Feb) 2.92"
Driest Month (Sep) 0.08"

Air Quality

AQI Median49.0
RatingGood
Good Days %53.0%
Unhealthy Days1

Natural Hazard Risk

Overall RiskVery High
Risk Score99.8 / 100
Social Vulnerability27.5 / 100
Community Resilience91.2 / 100

Hazard Breakdown

Tornado Relatively Moderate
Earthquake Very High
Wildfire Relatively High
Flood Very High
Hail Relatively Low
Strong Wind Very Low
Heat Wave Relatively High
Winter Weather Very Low
Lightning Relatively Low
Drought Relatively Moderate
Cold Wave No Rating
Landslide Relatively High
Coastal Flood Relatively High
Tsunami Relatively Low
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5,106 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 72 km 11 km
Apr 18, 1990 5 km NNW of Aromas, California M5.4 84 km 5 km
Apr 18, 1990 4 km E of Interlaken, California M5.1 81 km 7 km
Aug 12, 1998 10 km SW of Ridgemark, California M5.1 108 km 9 km
Jan 16, 1993 9 km E of Gilroy, California M4.9 81 km 7 km
Sep 3, 2000 5 km WSW of Yountville, California M4.9 92 km 9 km
Apr 23, 1995 22 km NNE of Soledad, California M4.9 133 km 7 km
Apr 18, 1990 4 km NNW of Aromas, California M4.9 84 km 6 km
Apr 19, 1996 2 km E of Aromas, California M4.9 90 km 5 km
May 14, 2002 5 km SSW of Gilroy, California M4.9 82 km 7 km
Sep 4, 1995 13 km SW of Middletown, California M4.8 136 km 7 km
May 21, 1996 8 km ESE of East Foothills, California M4.7 37 km 8 km
Apr 18, 1990 4 km N of Aromas, California M4.7 85 km 4 km
Aug 11, 1993 14 km ESE of Alum Rock, California M4.7 43 km 9 km
Aug 27, 2011 21 km NE of Soledad, California M4.6 136 km 8 km
Mar 24, 1991 1 km NNE of Interlaken, California M4.6 79 km 15 km
Aug 18, 1999 0 km S of Bolinas, California M4.6 76 km 8 km
Sep 19, 2023 15 km SW of Westley, CA M4.5 58 km 4 km
Aug 3, 2006 5 km W of Glen Ellen, California M4.5 99 km 9 km
Jan 12, 2011 9 km SSE of San Juan Bautista, California M4.5 105 km 8 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tornado History

68 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 10 injuries.

Date Rating Distance Path Fatalities
May 5, 1998 EF2 36 km 0.6 mi 0
Apr 27, 1953 EF2 78 km 0.1 mi 0
Jan 11, 1951 EF2 39 km 5.7 mi 0
Dec 14, 2024 EF1 70 km 0.3 mi 0
Nov 15, 2015 EF1 95 km 3.0 mi 0
Jan 23, 2010 EF1 29 km 1.6 mi 0
Apr 14, 2006 EF1 78 km 0.5 mi 0
Mar 20, 2005 EF1 48 km 3.0 mi 0
Dec 20, 2001 EF1 78 km 0.5 mi 0
May 5, 1998 EF1 38 km 0.3 mi 0
Dec 12, 1996 EF1 91 km 0.6 mi 0
Apr 19, 1988 EF1 85 km 0.2 mi 0
Jan 14, 1980 EF1 21 km 0.3 mi 0
Mar 4, 1978 EF1 93 km 2.5 mi 0
Mar 4, 1978 EF1 95 km 1.0 mi 0
Mar 1, 1978 EF1 84 km 1.5 mi 0
May 31, 1967 EF1 61 km 0.1 mi 0
Apr 1, 1965 EF1 77 km 0.1 mi 0
Apr 1, 1958 EF1 42 km 0.2 mi 0
Apr 1, 1958 EF1 100 km 2.0 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 20 km
1989 N. CALIFORNIA Earthquake 1.0 m 62 70 km
1856 N. CALIFORNIA Eruption + Earthquake 0.6 m - 41 km
1906 N. CALIFORNIA Eruption + Earthquake 0.1 m - 55 km
1865 N. CALIFORNIA Eruption + Earthquake - - 52 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (164 km).

Name Type Elevation Last Eruption Distance
Clear Lake Volcanic field 1,439 m (4,721 ft) Unknown 164 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 39 km
2020 CZU AUG LIGHTNING 85,894 65 km
2017 NUNS 56,883 93 km
2017 ATLAS 51,664 84 km
2007 LICK 47,424 64 km
2006 CANYON 36,851 58 km
1988 MILLER 35,750 87 km
2003 ANNIE 17,383 74 km
2024 CORRAL 16,138 37 km
2018 WAVERLY 12,238 98 km
2009 CORRAL 12,006 36 km
1995 VISION 11,931 96 km
1985 LEXINGTON 11,550 58 km
2015 WRAGG 8,455 92 km
2009 LOCKHEED 8,287 71 km
2003 BIRD 7,727 50 km
2014 MONTICELLO 6,984 98 km
1984 SITE 300 3 6,911 36 km
2005 TESLA 6,638 28 km
2003 DEL PUERTO 6,441 50 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 48°F (9°C) 2.8 in Coldest
February 50°F (10°C) 2.9 in Wettest
March 54°F (12°C) 2.3 in
April 57°F (14°C) 1.1 in
May 62°F (17°C) 0.6 in
June 68°F (20°C) 0.1 in
July 72°F (22°C) 0.0 in Warmest, Driest
August 72°F (22°C) 0.1 in
September 70°F (21°C) 0.1 in
October 64°F (18°C) 0.8 in
November 54°F (12°C) 1.7 in
December 48°F (9°C) 2.8 in

Pleasanton has a seasonal temperature swing of 25°F / from 48°F in January to 72°F in July. Total annual precipitation is 15.2 inches, with February being the wettest month (2.9") and July the driest (0.0").

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