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Weather & Climate in Lenwood, CA

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

Lenwood enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 47°F in January while summers reach 87°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 5.0 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 2,216 feet.

Temperature

47°F Jan (8°C) 87°F Jul (31°C)
Annual Average65.7°F
22% above US avg
January Average47°F (8°C)
July Average87°F (31°C)
Sunny Days330 days/yr

Geography

Elevation2,216 ft (675 m)
Area2.2 sq mi (5.7 km²)
Population Density1,783/sq mi
Coordinates34.8861°N, 117.1078°W
TimezoneAmerica/Los_Angeles
CountySan Bernardino County County
Nearest AirportSan Bernardino International (SBD)
55 miles away

Precipitation & Snow

Annual Rainfall 5.0"
87% below US avg
Snowfall 0.3"
Wettest Month (Jan) 0.59"
Driest Month (Jun) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.8 / 100
Social Vulnerability33.2 / 100
Community Resilience20.1 / 100

Hazard Breakdown

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

Earthquake History

16,442 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 98 km 0 km
Oct 16, 1999 The 1999 Hector Mine, California Earthquake M7.1 83 km 14 km
Jul 6, 2019 Ridgecrest Earthquake Sequence M7.1 108 km 8 km
Jul 4, 2019 Ridgecrest Earthquake Sequence M6.4 98 km 11 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 80 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 126 km 12 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 144 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 106 km 8 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 106 km -1 km
Oct 16, 1999 13km WSW of Ludlow, CA M5.8 78 km 14 km
Sep 20, 1995 16km NNE of Ridgecrest, California M5.8 109 km 5 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 112 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 108 km 10 km
Jul 11, 1992 12km NW of California City, California M5.7 95 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 72 km 6 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 84 km 10 km
Jun 4, 2020 17km S of Searles Valley, CA M5.5 86 km 8 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 99 km 3 km
Jul 6, 2019 15km ESE of Little Lake, CA M5.5 127 km 5 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 106 km 8 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

35 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 3 injuries.

Date Rating Distance Path Fatalities
Sep 7, 1982 EF2 99 km 0.5 mi 0
Jun 25, 1954 EF2 30 km 0.1 mi 0
Aug 4, 2008 EF1 76 km 1.1 mi 0
May 18, 1997 EF1 33 km 9.0 mi 0
May 18, 1997 EF1 31 km 3.5 mi 0
May 11, 1997 EF1 42 km 0.2 mi 0
Sep 4, 1976 EF1 54 km 0.1 mi 0
Sep 9, 2021 EF0 72 km 1.8 mi 0
Apr 16, 2019 EF0 94 km 1.6 mi 0
May 7, 2017 EF0 38 km 0.0 mi 0
Jul 19, 2015 EF0 92 km 0.2 mi 0
Aug 18, 2013 EF0 25 km 1.0 mi 0
Sep 1, 2007 EF0 96 km 0.1 mi 0
Aug 15, 2005 EF0 82 km 0.1 mi 0
Mar 4, 2005 EF0 92 km 0.5 mi 0
Aug 14, 2004 EF0 67 km 1.0 mi 0
Aug 14, 2004 EF0 83 km 1.0 mi 0
Aug 28, 2000 EF0 88 km 0.1 mi 0
Jul 21, 1997 EF0 99 km 0.1 mi 0
Jun 6, 1997 EF0 55 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1855 S. CALIFORNIA Eruption + Earthquake — — 126 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Golden Trout Creek (197 km).

Name Type Elevation Last Eruption Distance
Golden Trout Creek Volcanic field 2,886 m (9,469 ft) -5550 197 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: BOBCAT (115,728 acres, 2020).

Year Name Acres Burned Distance
2020 BOBCAT 115,728 98 km
2003 OLD 90,180 73 km
2006 MILLARD 86,585 97 km
1999 WILLOW 63,525 60 km
2003 GRAND PRIX 50,799 85 km
2002 WILLIAMS 37,505 98 km
2016 BLUE CUT 36,856 72 km
2020 APPLE 32,374 98 km
2015 LAKE 30,421 88 km
2020 EL DORADO 22,300 91 km
2002 CURVE 20,565 91 km
1997 NARROWS 18,248 83 km
2007 BUTLER 2 14,661 67 km
2007 SLIDE 13,190 74 km
1994 DEVILS 12,778 61 km
2003 PADUA 10,577 96 km
1988 TEXAS 10,515 86 km
2016 PILOT 8,267 66 km
1993 OPAL 2 8,223 33 km
2009 SHEEP 7,451 75 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 47°F (8°C) 0.6 in Wettest
February 51°F (11°C) 0.6 in
March 55°F (13°C) 0.5 in
April 62°F (17°C) 0.2 in
May 70°F (21°C) 0.1 in
June 80°F (26°C) 0.0 in Driest
July 87°F (31°C) 0.2 in Warmest
August 84°F (29°C) 0.3 in
September 77°F (25°C) 0.2 in
October 66°F (19°C) 0.2 in
November 54°F (12°C) 0.3 in
December 46°F (8°C) 0.5 in Coldest

Lenwood has a seasonal temperature swing of 41°F / from 46°F in December to 87°F in July. Total annual precipitation is 3.7 inches, with January being the wettest month (0.6") and June the driest (0.0").

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