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Acton, CA

Full City Profile · California · Los Angeles County County

3.1 /5.0
B Good
7,721 Population 197/sq mi density
$110,000 Median Income $46,814 per capita
$695,300 Home Value $843,694 Zillow
$1,755 Median Rent 36.7% income on rent
58°F Avg Temperature 320 sunny days/yr
531 Violent Crime/100K 2,035 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$110,000 median income, 1.0% unemployment
B
Affordability
3.1 / 5.0
$695,300 home value, $1,755/mo rent
F
Safety
1.0 / 5.0
531 violent crimes/100K (40% above avg)
B
Education
3.3 / 5.0
29.3% bachelor's degree or higher
Acton enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 47°F in January while summers reach 74°F in July. The area gets 320 sunny days per year. Annual precipitation totals 32.2 inches. Air quality is rated Good with a median AQI of 48.

Temperature

47°F Jan (8°C) 74°F Jul (24°C)
Annual Average58.4°F
8% above US avg
January Average47°F (8°C)
July Average74°F (24°C)
Sunny Days320 days/yr

Geography

Elevation3,106 ft (947 m)
Area39.3 sq mi (101.7 km²)
Population Density197/sq mi
Coordinates34.4961°N, 118.1839°W
TimezoneAmerica/Los_Angeles
CountyLos Angeles County County
Nearest AirportBob Hope (BUR)
23 miles away

Precipitation & Snow

Annual Rainfall 32.2"
15% below US avg
Wettest Month (Feb) 3.27"
Driest Month (Jun) 0.08"

Air Quality

AQI Median48.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0482 ppm
NO₂ (Nitrogen Dioxide)17.4 ppb
SO₂ (Sulfur Dioxide)0.32 ppb
CO (Carbon Monoxide)0.32 ppm
PM2.5 (Fine Particles)10.0 μg/m³

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

9,336 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.7. Most recent: M2.8 on Aug 28, 2025.

Jan 17, 1994 Northridge, California, earthquake M6.7 45 km
Jul 4, 2019 Ridgecrest Earthquake Sequence M6.4 148 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 129 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 38 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 31 km
Sep 20, 1995 16km NNE of Ridgecrest, California M5.8 149 km
Jul 11, 1992 12km NW of California City, California M5.7 80 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 109 km
Jan 17, 1994 7km NNE of Simi Valley, California M5.6 51 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 128 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 59 km
Jun 4, 2020 17km S of Searles Valley, CA M5.5 142 km
Aug 17, 1995 17km N of Ridgecrest, California M5.4 150 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 119 km
Mar 18, 1997 20km ENE of Barstow, California M5.3 135 km
Jun 28, 1992 1km N of Big Bear Lake, California M5.3 120 km
Dec 4, 1992 10km SE of Lucerne Valley, California M5.3 119 km
Mar 20, 1994 3km WNW of Panorama City, California M5.2 40 km
Jan 18, 1994 10km ESE of Piru, California M5.2 49 km
Aug 17, 1992 7km SE of Big Bear Lake, California M5.2 126 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

98 tornadoes (EF0+) within 100 km since 1950. Strongest: EF2. Total: 52 injuries.

Date Rating Distance Fatalities
Mar 1, 1983 EF2 60 km 0
Nov 9, 1982 EF2 80 km 0
Nov 9, 1982 EF2 43 km 0
Nov 7, 1966 EF2 97 km 0
Nov 7, 1966 EF2 73 km 0
Nov 7, 1966 EF2 67 km 0
Jun 25, 1954 EF2 91 km 0
Mar 22, 2023 EF1 56 km 0
Jan 19, 2010 EF1 87 km 0
Jan 9, 1998 EF1 80 km 0
Dec 21, 1997 EF1 93 km 0
Nov 11, 1997 EF1 97 km 0
May 18, 1997 EF1 93 km 0
May 18, 1997 EF1 89 km 0
May 11, 1997 EF1 90 km 0
Jan 14, 1993 EF1 72 km 0
Dec 7, 1992 EF1 85 km 0
Dec 7, 1992 EF1 78 km 0
Mar 20, 1992 EF1 44 km 0
Mar 27, 1991 EF1 93 km 0
Source: NOAA SPC (EF0+, 1950-2024)

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 67 km
1994 WEST COAST, USA Earthquake 0.1 m 57 45 km
1855 S. CALIFORNIA Eruption + Earthquake - - 45 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Wildfire History

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

Year Name Acres Distance
2009 STATION 165,368 19 km
2006 DAY 159,713 73 km
2020 BOBCAT 115,728 30 km
2003 SIMI 107,756 59 km
2018 WOOLSEY 97,962 72 km
2003 OLD 90,180 87 km
2003 PIRU 63,920 62 km
2003 GRAND PRIX 50,799 74 km
1985 FERNDALE 46,724 89 km
2016 SAND 41,561 19 km
2007 BUCKWEED 41,332 24 km
1993 GREEN MEADOWS 38,115 84 km
2002 WILLIAMS 37,505 50 km
2007 RANCH 37,009 50 km
2016 BLUE CUT 36,856 65 km
2013 POWERHOUSE 32,329 32 km
2020 LAKE 30,971 41 km
2008 FREEWAY COMPLEX 29,350 75 km
2007 SANTIAGO 27,605 99 km
1993 STECKEL 26,202 90 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 47°F (8°C) 3.2 in
February 47°F (9°C) 3.3 in Wettest
March 49°F (10°C) 2.7 in
April 54°F (12°C) 1.1 in
May 60°F (16°C) 0.3 in
June 69°F (20°C) 0.1 in Driest
July 74°F (24°C) 0.1 in
August 76°F (24°C) 0.2 in Warmest
September 71°F (22°C) 0.4 in
October 63°F (17°C) 0.4 in
November 52°F (11°C) 2.1 in
December 46°F (8°C) 2.5 in Coldest

Acton has a seasonal temperature swing of 30°F / from 46°F in December to 76°F in August. Total annual precipitation is 16.3 inches, with February being the wettest month (3.3") and June the driest (0.1").

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