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Weather & Climate in Coronita, CA

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

Coronita enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 56°F in January while summers reach 78°F in July. 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 10.0 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 659 feet.

Temperature

56°F Jan (13°C) 78°F Jul (26°C)
Annual Average66.1°F
22% above US avg
January Average56°F (13°C)
July Average78°F (26°C)
Sunny Days330 days/yr

Geography

Elevation659 ft (201 m)
Area0.6 sq mi (1.6 km²)
Population Density4,561/sq mi
Coordinates33.8759°N, 117.6110°W
TimezoneAmerica/Los_Angeles
CountyOrange County County
Nearest AirportOntario International (ONT)
12 miles away

Precipitation & Snow

Annual Rainfall 10.0"
74% below US avg
Wettest Month (Feb) 3.07"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.8 / 100
Social Vulnerability24.9 / 100
Community Resilience16.3 / 100

Hazard Breakdown

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

Earthquake History

12,760 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 114 km 0 km
Oct 16, 1999 The 1999 Hector Mine, California Earthquake M7.1 148 km 14 km
Jan 17, 1994 Northridge, California, earthquake M6.7 93 km 18 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 81 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 120 km 12 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 93 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 56 km 8 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 115 km -1 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 122 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 114 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 66 km 6 km
Jan 17, 1994 7km NNE of Simi Valley, California M5.6 112 km 9 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 77 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 M5.5 112 km 8 km
Jul 5, 1992 21km SW of Ludlow, California M5.4 142 km 5 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 117 km 12 km
Jun 28, 1992 26km NNW of Yucca Valley, CA M5.4 114 km 4 km
Oct 16, 1999 32km SSW of Ludlow, California M5.4 140 km 1 km
Jul 1, 1992 24km N of Yucca Valley, California M5.3 117 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

126 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 58 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 33 km 2.8 mi 0
Mar 1, 1983 EF2 71 km 3.5 mi 0
Nov 9, 1982 EF2 84 km 1.0 mi 0
Nov 9, 1982 EF2 55 km 10.0 mi 0
Nov 7, 1966 EF2 64 km 0.1 mi 0
Nov 7, 1966 EF2 38 km 0.2 mi 0
Nov 7, 1966 EF2 67 km 10.3 mi 0
Jun 25, 1954 EF2 92 km 0.1 mi 0
Mar 22, 2023 EF1 49 km 0.5 mi 0
Jan 19, 2010 EF1 51 km 4.6 mi 0
Feb 19, 2005 EF1 60 km 2.8 mi 0
Jan 29, 1998 EF1 96 km 0.5 mi 0
Jan 9, 1998 EF1 53 km 1.5 mi 0
Dec 21, 1997 EF1 43 km 1.0 mi 0
Nov 11, 1997 EF1 29 km 0.2 mi 0
May 18, 1997 EF1 90 km 9.0 mi 0
May 18, 1997 EF1 91 km 3.5 mi 0
May 11, 1997 EF1 81 km 0.2 mi 0
Dec 22, 1996 EF1 77 km 0.1 mi 0
Jan 14, 1993 EF1 31 km 1.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 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 97 km
1862 S. CALIFORNIA Eruption + Earthquake 1.2 m — 136 km
1994 WEST COAST, USA Earthquake 0.1 m 57 93 km
1855 S. CALIFORNIA Eruption + Earthquake — — 52 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (200 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 200 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

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 70 km
2020 BOBCAT 115,728 58 km
2003 OLD 90,180 51 km
2006 MILLARD 86,585 95 km
1999 WILLOW 63,525 70 km
2003 PARADISE 55,995 99 km
2003 GRAND PRIX 50,799 37 km
2007 POOMACHA 47,496 91 km
2016 SAND 41,561 89 km
2006 ESPERANZA 40,566 68 km
2002 WILLIAMS 37,505 39 km
2016 BLUE CUT 36,856 51 km
2008 YELLOW 33,232 56 km
2020 APPLE 32,374 71 km
2015 LAKE 30,421 84 km
2008 FREEWAY COMPLEX 29,350 14 km
2022 FAIRVIEW 28,680 72 km
2013 MOUNTAIN 28,202 92 km
2007 SANTIAGO 27,605 18 km
1998 EDNA 27,561 57 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 56°F (13°C) 3.0 in
February 56°F (13°C) 3.1 in Wettest
March 57°F (14°C) 2.7 in
April 61°F (16°C) 0.9 in
May 65°F (18°C) 0.2 in
June 70°F (21°C) 0.1 in
July 78°F (26°C) 0.0 in Warmest, Driest
August 76°F (25°C) 0.1 in
September 73°F (23°C) 0.4 in
October 67°F (20°C) 0.4 in
November 59°F (15°C) 1.5 in
December 54°F (12°C) 2.0 in Coldest

Coronita has a seasonal temperature swing of 24°F / from 54°F in December to 78°F in July. Total annual precipitation is 14.4 inches, with February being the wettest month (3.1") and July the driest (0.0").

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