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Weather & Climate in Spring Valley Lake, CA

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

Spring Valley Lake enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 48°F in January while summers reach 81°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 7.9 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 2,784 feet.

Temperature

48°F Jan (9°C) 81°F Jul (27°C)
Annual Average63.6°F
18% above US avg
January Average48°F (9°C)
July Average81°F (27°C)
Sunny Days330 days/yr

Geography

Elevation2,784 ft (849 m)
Area3.5 sq mi (9.1 km²)
Population Density3,344/sq mi
Coordinates34.4968°N, 117.2676°W
TimezoneAmerica/Los_Angeles
CountyLos Angeles County County
Nearest AirportSan Bernardino International (SBD)
28 miles away

Precipitation & Snow

Annual Rainfall 7.9"
79% below US avg
Wettest Month (Feb) 1.89"
Driest Month (Jun) 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

15,184 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 83 km 0 km
Oct 16, 1999 The 1999 Hector Mine, California Earthquake M7.1 93 km 14 km
Jul 6, 2019 Ridgecrest Earthquake Sequence M7.1 145 km 8 km
Jan 17, 1994 Northridge, California, earthquake M6.7 121 km 18 km
Jul 4, 2019 Ridgecrest Earthquake Sequence M6.4 136 km 11 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 52 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 106 km 12 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 115 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 71 km 8 km
Oct 16, 1999 13km WSW of Ludlow, CA M5.8 92 km 14 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 89 km -1 km
Sep 20, 1995 16km NNE of Ridgecrest, California M5.8 145 km 5 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 96 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 91 km 10 km
Jul 11, 1992 12km NW of California City, California M5.7 108 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 35 km 6 km
Jan 17, 1994 7km NNE of Simi Valley, California M5.6 133 km 9 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 53 km 10 km
Jun 4, 2020 17km S of Searles Valley, CA M5.5 125 km 8 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 56 km 3 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

76 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 11 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 69 km 2.8 mi 0
Sep 7, 1982 EF2 88 km 0.5 mi 0
Jun 25, 1954 EF2 16 km 0.1 mi 0
Mar 22, 2023 EF1 96 km 0.5 mi 0
Aug 4, 2008 EF1 64 km 1.1 mi 0
May 18, 1997 EF1 15 km 3.5 mi 0
May 18, 1997 EF1 14 km 9.0 mi 0
May 11, 1997 EF1 7 km 0.2 mi 0
Dec 22, 1996 EF1 78 km 0.1 mi 0
Jan 14, 1993 EF1 93 km 1.0 mi 0
Dec 7, 1992 EF1 95 km 0.1 mi 0
Mar 20, 1992 EF1 95 km 0.2 mi 0
Mar 16, 1986 EF1 95 km 1.2 mi 0
Mar 29, 1982 EF1 89 km 2.0 mi 0
Mar 16, 1977 EF1 99 km 10.9 mi 0
Sep 4, 1976 EF1 33 km 0.1 mi 0
Oct 22, 1974 EF1 90 km 0.1 mi 0
Jul 20, 1974 EF1 88 km 1.0 mi 0
Nov 25, 1965 EF1 62 km 2.0 mi 0
Feb 23, 2023 EF0 93 km 0.1 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 1 137 km
1994 WEST COAST, USA Earthquake 0.1 m 57 121 km
1855 S. CALIFORNIA Eruption + Earthquake — — 88 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 82 km
2020 BOBCAT 115,728 64 km
2003 OLD 90,180 28 km
2006 MILLARD 86,585 73 km
1999 WILLOW 63,525 23 km
2003 GRAND PRIX 50,799 39 km
2016 SAND 41,561 100 km
2006 ESPERANZA 40,566 79 km
2002 WILLIAMS 37,505 58 km
2016 BLUE CUT 36,856 29 km
2020 APPLE 32,374 64 km
2015 LAKE 30,421 61 km
2008 FREEWAY COMPLEX 29,350 78 km
2022 FAIRVIEW 28,680 99 km
2007 SANTIAGO 27,605 94 km
1998 EDNA 27,561 71 km
1993 CALIFORNIA 23,899 98 km
2018 HOLY 22,845 90 km
2020 EL DORADO 22,300 54 km
1995 VERBENIA 21,601 78 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 48°F (9°C) 1.8 in
February 48°F (9°C) 1.9 in Wettest
March 51°F (11°C) 1.7 in
April 57°F (14°C) 0.7 in
May 64°F (18°C) 0.3 in
June 72°F (22°C) 0.0 in Driest
July 81°F (27°C) 0.2 in Warmest
August 78°F (25°C) 0.3 in
September 72°F (22°C) 0.4 in
October 62°F (17°C) 0.4 in
November 52°F (11°C) 1.2 in
December 44°F (7°C) 1.5 in Coldest

Spring Valley Lake has a seasonal temperature swing of 37°F / from 44°F in December to 81°F in July. Total annual precipitation is 10.4 inches, with February being the wettest month (1.9") and June the driest (0.0").

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