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Weather & Climate in Compton, CA

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

Compton enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 52°F in January while summers reach 71°F in July / relatively mild seasonal variation. The area gets 327 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 29.8 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 75 feet.

Temperature

52°F Jan (11°C) 71°F Jul (22°C)
Annual Average61.5°F
14% above US avg
January Average52°F (11°C)
July Average71°F (22°C)
Sunny Days327 days/yr

Geography

Elevation75 ft (23 m)
Area10.1 sq mi (26.2 km²)
Population Density9,325/sq mi
Coordinates33.8940°N, 118.2275°W
TimezoneAmerica/Los_Angeles
CountyLos Angeles County County
Nearest AirportLos Angeles International (LAX)
11 miles away

Precipitation & Snow

Annual Rainfall 29.8"
22% below US avg
Snowfall 0.0"
Wettest Month (Feb) 3.07"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score100.0 / 100
Social Vulnerability55.4 / 100
Community Resilience13.6 / 100

Hazard Breakdown

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

Earthquake History

5,983 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.

Jan 17, 1994 Northridge, California, earthquake M6.7 46 km 18 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 134 km 4 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 49 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 47 km 8 km
Jul 11, 1992 12km NW of California City, California M5.7 147 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 116 km 6 km
Jan 17, 1994 7km NNE of Simi Valley, California M5.6 65 km 9 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 130 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 56 km 3 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 132 km 0 km
Apr 5, 2018 31km SW of Santa Cruz Is. (E end), CA M5.3 139 km 10 km
Dec 4, 1992 10km SE of Lucerne Valley, California M5.3 133 km 1 km
Jun 28, 1992 1km N of Big Bear Lake, California M5.3 128 km 7 km
Mar 20, 1994 3km WNW of Panorama City, California M5.2 44 km 12 km
Jan 18, 1994 10km ESE of Piru, California M5.2 69 km 11 km
Aug 17, 1992 7km SE of Big Bear Lake, California M5.2 130 km 9 km
Jan 17, 1994 9km N of Chatsworth, California M5.2 61 km 5 km
Mar 29, 2014 2km NW of Brea, CA M5.1 29 km 5 km
Aug 20, 2023 7 km SE of Ojai, CA M5.1 105 km 5 km
Jan 19, 1994 10km SSW of Valencia, California M5.1 65 km 11 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tornado History

103 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 54 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 90 km 2.8 mi 0
Mar 1, 1983 EF2 16 km 3.5 mi 0
Nov 9, 1982 EF2 38 km 1.0 mi 0
Nov 9, 1982 EF2 13 km 10.0 mi 0
Nov 7, 1966 EF2 7 km 0.1 mi 0
Nov 7, 1966 EF2 11 km 10.3 mi 0
Nov 7, 1966 EF2 39 km 0.2 mi 0
Mar 22, 2023 EF1 15 km 0.5 mi 0
Jan 19, 2010 EF1 22 km 4.6 mi 0
Jan 9, 1998 EF1 14 km 1.5 mi 0
Dec 21, 1997 EF1 33 km 1.0 mi 0
Nov 11, 1997 EF1 45 km 0.2 mi 0
Jan 14, 1993 EF1 26 km 1.0 mi 0
Dec 7, 1992 EF1 29 km 0.1 mi 0
Dec 7, 1992 EF1 26 km 0.1 mi 0
Mar 20, 1992 EF1 23 km 0.2 mi 0
Mar 27, 1991 EF1 33 km 3.0 mi 0
Mar 16, 1986 EF1 29 km 1.2 mi 0
Oct 1, 1983 EF1 12 km 0.3 mi 0
Nov 9, 1982 EF1 44 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 3.1 m (10 ft).

Year Location Cause Max Wave Deaths Distance
1930 S. CALIFORNIA Eruption + Earthquake 3.1 m 1 41 km
1994 WEST COAST, USA Earthquake 0.1 m 57 46 km
1855 S. CALIFORNIA Eruption + Earthquake - - 26 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STATION (165,368 acres, 2009).

Year Name Acres Burned Distance
2009 STATION 165,368 49 km
2020 BOBCAT 115,728 55 km
2003 SIMI 107,756 71 km
2018 WOOLSEY 97,962 61 km
2003 OLD 90,180 95 km
2003 PIRU 63,920 87 km
2003 GRAND PRIX 50,799 77 km
2016 SAND 41,561 56 km
2007 BUCKWEED 41,332 72 km
1993 GREEN MEADOWS 38,115 73 km
2002 WILLIAMS 37,505 53 km
2007 RANCH 37,009 83 km
2016 BLUE CUT 36,856 82 km
2008 YELLOW 33,232 91 km
2013 POWERHOUSE 32,329 89 km
2020 LAKE 30,971 93 km
2008 FREEWAY COMPLEX 29,350 44 km
2007 SANTIAGO 27,605 56 km
2020 INDIA 24,193 92 km
2005 TOPANGA 24,133 56 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 52°F (11°C) 3.0 in Coldest
February 59°F (15°C) 3.1 in Wettest
March 60°F (16°C) 2.5 in
April 63°F (17°C) 0.8 in
May 66°F (19°C) 0.2 in
June 70°F (21°C) 0.1 in
July 71°F (22°C) 0.0 in Driest
August 74°F (24°C) 0.1 in Warmest
September 73°F (23°C) 0.2 in
October 69°F (20°C) 0.4 in
November 62°F (17°C) 1.4 in
December 58°F (14°C) 1.9 in

Compton has a seasonal temperature swing of 23°F / from 52°F in January to 74°F in August. Total annual precipitation is 13.7 inches, with February being the wettest month (3.1") and July the driest (0.0").

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