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Weather & Climate in East Hemet, CA

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

East Hemet enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 55°F in January while summers reach 80°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 11.8 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 1,682 feet.

Temperature

55°F Jan (13°C) 80°F Jul (27°C)
Annual Average66.3°F
23% above US avg
January Average55°F (13°C)
July Average80°F (27°C)
Sunny Days330 days/yr

Geography

Elevation1,682 ft (513 m)
Area5.2 sq mi (13.5 km²)
Population Density3,902/sq mi
Coordinates33.7301°N, 116.9410°W
TimezoneAmerica/Los_Angeles
CountySan Diego County County
Nearest AirportPalm Springs International (PSP)
26 miles away

Precipitation & Snow

Annual Rainfall 11.8"
69% below US avg
Snowfall 0.0"
Wettest Month (Jan) 2.44"
Driest Month (Jun) 0.08"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.7 / 100
Social Vulnerability24.8 / 100
Community Resilience8.3 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Very Low
Earthquake Relatively High
Wildfire Very High
Flood Very High
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively High
Winter Weather Relatively Low
Lightning Relatively Moderate
Drought Relatively Low
Cold Wave Very Low
Landslide Relatively High
Coastal Flood Relatively Moderate
Tsunami Relatively Low
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

13,456 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 70 km 0 km
Oct 16, 1999 The 1999 Hector Mine, California Earthquake M7.1 115 km 14 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 54 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 63 km 12 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 114 km 8 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 66 km -1 km
Oct 16, 1999 13km WSW of Ludlow, CA M5.8 121 km 14 km
Jun 15, 2010 8km ESE of Ocotillo, CA M5.7 149 km 9 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 72 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 65 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 57 km 6 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 49 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 84 km 3 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 64 km 8 km
Jul 5, 1992 21km SW of Ludlow, California M5.4 111 km 5 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 56 km 12 km
Jun 28, 1992 26km NNW of Yucca Valley, CA M5.4 79 km 4 km
Oct 16, 1999 32km SSW of Ludlow, California M5.4 101 km 1 km
Jul 1, 1992 24km N of Yucca Valley, California M5.3 80 km 5 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 68 km 0 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

92 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 17 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 33 km 2.8 mi 0
Sep 7, 1982 EF2 77 km 0.5 mi 0
Nov 7, 1966 EF2 91 km 0.2 mi 0
Aug 6, 2015 EF1 79 km 4.0 mi 0
Aug 4, 2008 EF1 76 km 1.1 mi 0
Feb 19, 2005 EF1 35 km 2.8 mi 0
Nov 10, 2000 EF1 87 km 0.4 mi 0
Jan 29, 1998 EF1 83 km 0.5 mi 0
Dec 21, 1997 EF1 98 km 1.0 mi 0
Nov 11, 1997 EF1 82 km 0.2 mi 0
May 18, 1997 EF1 99 km 9.0 mi 0
May 11, 1997 EF1 91 km 0.2 mi 0
Dec 22, 1996 EF1 26 km 0.1 mi 0
Jan 14, 1993 EF1 95 km 1.0 mi 0
Dec 7, 1992 EF1 98 km 0.1 mi 0
Dec 7, 1992 EF1 91 km 0.1 mi 0
Mar 27, 1991 EF1 98 km 3.0 mi 0
Mar 27, 1991 EF1 68 km 0.2 mi 0
Mar 16, 1986 EF1 91 km 1.2 mi 0
Nov 9, 1982 EF1 70 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: 1.2 m (4 ft).

Year Location Cause Max Wave Deaths Distance
1862 S. CALIFORNIA Eruption + Earthquake 1.2 m — 117 km
1855 S. CALIFORNIA Eruption + Earthquake — — 115 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (137 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 137 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CEDAR (268,362 acres, 2003).

Year Name Acres Burned Distance
2003 CEDAR 268,362 90 km
2007 WITCH 167,551 74 km
2003 OLD 90,180 66 km
2006 MILLARD 86,585 52 km
2002 PINES 65,407 73 km
1999 WILLOW 63,525 70 km
2003 PARADISE 55,995 59 km
2003 GRAND PRIX 50,799 71 km
2007 POOMACHA 47,496 48 km
2006 ESPERANZA 40,566 16 km
2002 WILLIAMS 37,505 93 km
2016 BLUE CUT 36,856 84 km
2008 YELLOW 33,232 61 km
2020 APPLE 32,374 34 km
2015 LAKE 30,421 49 km
2008 FREEWAY COMPLEX 29,350 78 km
2022 FAIRVIEW 28,680 9 km
2013 MOUNTAIN 28,202 28 km
2007 SANTIAGO 27,605 67 km
1998 EDNA 27,561 19 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 55°F (13°C) 2.4 in Wettest
February 53°F (11°C) 2.4 in
March 54°F (12°C) 2.1 in
April 59°F (15°C) 0.9 in
May 65°F (18°C) 0.4 in
June 72°F (22°C) 0.1 in Driest
July 80°F (27°C) 0.2 in Warmest
August 79°F (26°C) 0.4 in
September 75°F (24°C) 0.6 in
October 67°F (19°C) 0.4 in
November 57°F (14°C) 1.4 in
December 51°F (11°C) 1.7 in Coldest

East Hemet has a seasonal temperature swing of 29°F / from 51°F in December to 80°F in July. Total annual precipitation is 13.0 inches, with January being the wettest month (2.4") and June the driest (0.1").

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