Weather & Climate in Westside, CA

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

Westside enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 48°F in January while summers reach 81°F in July. Annual precipitation totals 7.2 inches (drier than the 38-inch national average). Air quality is rated Moderate with a median AQI of 60. 27% of days have good air quality. The city sits at an elevation of 238 feet.

Temperature

48°F Jan (9°C) 81°F Jul (27°C)
Annual Average64.3°F
19% above US avg
January Average48°F (9°C)
July Average81°F (27°C)

Geography

Elevation238 ft (73 m)
Area2.2 sq mi (5.7 km²)
Population Density85/sq mi
Coordinates36.4042°N, 120.1343°W
TimezoneAmerica/Los_Angeles
CountyKings County County
Nearest AirportFresno Yosemite International (FAT)
35 miles away

Precipitation & Snow

Annual Rainfall 7.2"
81% below US avg
Snowfall 0.0"
Wettest Month (Jan) 1.52"
Driest Month (Jul) 0.01"

Air Quality

AQI Median60.0
RatingModerate
Good Days %27.3%
Unhealthy Days35

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score92.4 / 100
Social Vulnerability65.7 / 100
Community Resilience7.7 / 100

Hazard Breakdown

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

Earthquake History

4,648 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Sep 28, 2004 2004 Parkfield, California Earthquake M6.0 68 km 8 km
Apr 18, 1990 5 km NNW of Aromas, California M5.4 148 km 5 km
Oct 21, 2012 24 km NE of San Lucas, California M5.3 66 km 9 km
Sep 17, 1991 22 km NW of San Simeon, California M5.2 127 km 9 km
Aug 12, 1998 10 km SW of Ridgemark, California M5.1 125 km 9 km
Sep 29, 2004 8 km NW of Parkfield, California M5.0 60 km 11 km
Jan 16, 1993 9 km E of Gilroy, California M4.9 137 km 7 km
Apr 23, 1995 22 km NNE of Soledad, California M4.9 98 km 7 km
Apr 19, 1996 2 km E of Aromas, California M4.9 142 km 5 km
May 14, 2002 5 km SSW of Gilroy, California M4.9 145 km 7 km
Dec 20, 1994 3 km NW of Parkfield, California M4.9 62 km 8 km
Apr 18, 1990 4 km NNW of Aromas, California M4.9 148 km 6 km
Sep 30, 2004 13 km NW of Parkfield, California M4.9 59 km 10 km
Feb 24, 2016 6km SSW of Wasco, CA M4.9 118 km 22 km
Nov 14, 1993 8 km NW of Parkfield, California M4.8 60 km 11 km
Sep 28, 2004 12 km SE of Parkfield, California M4.7 69 km 6 km
Feb 4, 1991 33 km SE of Big Sur, California M4.7 135 km 9 km
Apr 18, 1990 4 km N of Aromas, California M4.7 147 km 4 km
Aug 27, 2011 21 km NE of Soledad, California M4.6 96 km 8 km
Mar 17, 2004 9 km WSW of Oak Shores, California M4.5 113 km 4 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: 5 injuries.

Date Rating Distance Path Fatalities
Apr 5, 1980 EF2 39 km 15.0 mi 0
Mar 22, 1962 EF2 53 km 0.5 mi 0
Jan 17, 2019 EF1 71 km 0.3 mi 0
May 20, 2002 EF1 59 km 2.7 mi 0
Feb 14, 1998 EF1 60 km 3.0 mi 0
Nov 22, 1996 EF1 20 km 0.8 mi 0
Jan 14, 1995 EF1 81 km 1.0 mi 0
Feb 28, 1991 EF1 62 km 0.2 mi 0
Mar 8, 1986 EF1 46 km 4.0 mi 0
Mar 28, 1982 EF1 50 km 5.0 mi 0
Feb 19, 1980 EF1 55 km 1.7 mi 0
Mar 14, 1979 EF1 47 km 2.0 mi 0
Apr 22, 1967 EF1 95 km 1.0 mi 0
Apr 22, 1967 EF1 58 km 0.1 mi 0
Apr 21, 1967 EF1 63 km 0.1 mi 0
Nov 1, 1964 EF1 80 km 1.0 mi 0
May 19, 1957 EF1 43 km 0.1 mi 0
Mar 1, 2024 EF0 69 km 0.4 mi 0
May 19, 2019 EF0 26 km 0.4 mi 0
Mar 2, 2019 EF0 46 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 1.0 m (3 ft).

Year Location Cause Max Wave Deaths Distance
1878 S. CALIFORNIA Meteorological 1.0 m 1 146 km
1901 MONTEREY BAY, N. CALIFORNIA Eruption + Earthquake - - 56 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Golden Trout Creek (163 km).

Name Type Elevation Last Eruption Distance
Golden Trout Creek Volcanic field 2,886 m (9,469 ft) -5550 163 km
Mammoth Mountain Lava dome(s) 3,369 m (11,053 ft) 1260 168 km
Mono-Inyo Craters Lava dome(s) 2,796 m (9,173 ft) 1380 184 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: GARZA (48,404 acres, 2017).

Year Name Acres Burned Distance
2017 GARZA 48,404 52 km
1985 CHERRY 41,654 100 km
2020 MINERAL 29,901 46 km
1993 ORCHARD 22,309 74 km
1996 SKYLINE 21,694 46 km
1985 LOSGATOSIV 20,357 40 km
2024 BOONE 17,701 48 km
1996 MERCY 16,993 80 km
1996 PANOCHE II 14,760 48 km
1984 BONANZA 12,105 81 km
2006 RICO 11,807 64 km
1989 POWERHOUSE 11,532 99 km
2017 ELM 2 10,765 44 km
1996 HWY 41 9,537 89 km
1997 UNNAMED 9,396 89 km
2006 THREE ROCKS 9,336 35 km
1999 UNNAMED 9,220 89 km
1998 UNNAMED 8,950 89 km
1985 PONOCHE 2 7,508 67 km
2016 MINERAL 6,852 45 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 48°F (9°C) 1.5 in Wettest
February 53°F (11°C) 1.3 in
March 57°F (14°C) 1.4 in
April 62°F (17°C) 0.5 in
May 70°F (21°C) 0.4 in
June 76°F (24°C) 0.0 in
July 81°F (27°C) 0.0 in Warmest
August 80°F (27°C) 0.0 in Driest
September 76°F (24°C) 0.0 in
October 66°F (19°C) 0.4 in
November 55°F (13°C) 0.5 in
December 48°F (9°C) 1.1 in Coldest

Westside has a seasonal temperature swing of 33°F / from 48°F in December to 81°F in July. Total annual precipitation is 7.2 inches, with January being the wettest month (1.5") and August the driest (0.0").

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