Sign In Register

Weather & Climate in Arcadia, CA

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

Arcadia enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 57°F in January while summers reach 75°F in July / relatively mild seasonal variation. 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 15.7 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 453 feet.

Temperature

57°F Jan (14°C) 75°F Jul (24°C)
Annual Average66.0°F
22% above US avg
January Average57°F (14°C)
July Average75°F (24°C)
Sunny Days330 days/yr

Geography

Elevation453 ft (138 m)
Area10.9 sq mi (28.3 km²)
Population Density5,082/sq mi
Coordinates34.1327°N, 118.0363°W
TimezoneAmerica/Los_Angeles
CountyLos Angeles County County
Nearest AirportBob Hope (BUR)
19 miles away

Precipitation & Snow

Annual Rainfall 15.7"
59% below US avg
Snowfall 0.0"
Wettest Month (Feb) 3.82"
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

9,514 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 147 km 0 km
Jan 17, 1994 Northridge, California, earthquake M6.7 47 km 18 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 112 km 4 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 45 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 16 km 8 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 150 km -1 km
Jul 11, 1992 12km NW of California City, California M5.7 120 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 92 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 M5.5 109 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 31 km 3 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 148 km 8 km
Jun 28, 1992 26km NNW of Yucca Valley, CA M5.4 142 km 4 km
Jul 1, 1992 24km N of Yucca Valley, California M5.3 146 km 5 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 107 km 0 km
Mar 18, 1997 20km ENE of Barstow, California M5.3 145 km 1 km
Dec 4, 1992 10km SE of Lucerne Valley, California M5.3 108 km 1 km
Jun 28, 1992 1km N of Big Bear Lake, California M5.3 104 km 7 km
Mar 20, 1994 3km WNW of Panorama City, California M5.2 42 km 12 km
Jan 18, 1994 10km ESE of Piru, California M5.2 67 km 11 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
May 22, 2008 EF2 78 km 2.8 mi 0
Mar 1, 1983 EF2 35 km 3.5 mi 0
Nov 9, 1982 EF2 38 km 1.0 mi 0
Nov 9, 1982 EF2 42 km 10.0 mi 0
Nov 7, 1966 EF2 36 km 0.1 mi 0
Nov 7, 1966 EF2 42 km 10.3 mi 0
Nov 7, 1966 EF2 55 km 0.2 mi 0
Jun 25, 1954 EF2 95 km 0.1 mi 0
Mar 22, 2023 EF1 17 km 0.5 mi 0
Jan 19, 2010 EF1 47 km 4.6 mi 0
Jan 9, 1998 EF1 41 km 1.5 mi 0
Dec 21, 1997 EF1 52 km 1.0 mi 0
Nov 11, 1997 EF1 54 km 0.2 mi 0
May 18, 1997 EF1 92 km 3.5 mi 0
May 18, 1997 EF1 94 km 9.0 mi 0
May 11, 1997 EF1 88 km 0.2 mi 0
Jan 14, 1993 EF1 29 km 1.0 mi 0
Dec 7, 1992 EF1 43 km 0.1 mi 0
Dec 7, 1992 EF1 35 km 0.1 mi 0
Mar 20, 1992 EF1 14 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 57 km
1994 WEST COAST, USA Earthquake 0.1 m 57 47 km
1855 S. CALIFORNIA Eruption + Earthquake — — 7 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 24 km
2020 BOBCAT 115,728 23 km
2003 SIMI 107,756 73 km
2018 WOOLSEY 97,962 73 km
2003 OLD 90,180 70 km
2003 PIRU 63,920 85 km
1999 WILLOW 63,525 89 km
2003 GRAND PRIX 50,799 52 km
2016 SAND 41,561 41 km
2007 BUCKWEED 41,332 57 km
1993 GREEN MEADOWS 38,115 87 km
2002 WILLIAMS 37,505 25 km
2007 RANCH 37,009 76 km
2016 BLUE CUT 36,856 53 km
2008 YELLOW 33,232 98 km
2013 POWERHOUSE 32,329 71 km
2020 LAKE 30,971 78 km
2008 FREEWAY COMPLEX 29,350 35 km
2007 SANTIAGO 27,605 58 km
1998 EDNA 27,561 100 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 57°F (14°C) 3.6 in
February 58°F (14°C) 3.8 in Wettest
March 59°F (15°C) 3.3 in
April 63°F (17°C) 1.0 in
May 66°F (19°C) 0.2 in
June 71°F (22°C) 0.1 in
July 75°F (24°C) 0.0 in Driest
August 76°F (25°C) 0.1 in Warmest
September 74°F (23°C) 0.3 in
October 68°F (20°C) 0.5 in
November 61°F (16°C) 1.6 in
December 56°F (13°C) 2.2 in Coldest

Arcadia has a seasonal temperature swing of 20°F / from 56°F in December to 76°F in August. Total annual precipitation is 16.7 inches, with February being the wettest month (3.8") and July the driest (0.0").

View full profile of Arcadia, CA →