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Weather & Climate in Mount Laguna, CA

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

Mount Laguna experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 42°F in January while summers reach 71°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 17.6 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 5,759 feet.

Temperature

42°F Jan (5°C) 71°F Jul (22°C)
Annual Average54.4°F
1% above US avg
January Average42°F (5°C)
July Average71°F (22°C)
Sunny Days330 days/yr

Geography

Elevation5,759 ft (1,755 m)
Area1.7 sq mi (4.4 km²)
Population Density72/sq mi
Coordinates32.8711°N, 116.4247°W
TimezoneAmerica/Los_Angeles
CountySan Diego County County
Nearest AirportSan Diego International (SAN)
45 miles away

Precipitation & Snow

Annual Rainfall 17.6"
54% below US avg
Wettest Month (Mar) 3.27"
Driest Month (Jun) 0.12"

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

14,022 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 148 km 0 km
Apr 4, 2010 The 2010 Sierra El Mayor, B.C., Mexico Earthquake M7.2 124 km 10 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 122 km 12 km
Dec 30, 2009 12km N of Delta, B.C., MX M5.8 124 km 6 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 140 km -1 km
Jun 15, 2010 8km ESE of Ocotillo, CA M5.7 51 km 9 km
Feb 22, 2002 13km WSW of Delta, B.C., MX M5.7 120 km 7 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 139 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 137 km 10 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 149 km 10 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 138 km 8 km
Apr 4, 2010 9km SW of Delta, B.C., MX M5.4 126 km 10 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 61 km 12 km
Aug 26, 2012 4km NNW of Brawley, CA M5.4 84 km 8 km
Apr 4, 2010 12km WNW of Alberto Oviedo Mota, B.C., MX M5.4 126 km 10 km
May 24, 2006 6km SSW of Delta, B.C., MX M5.4 129 km 6 km
Dec 3, 1991 71km E of Maneadero, B.C., MX M5.3 136 km 6 km
Aug 26, 2012 5km NNW of Brawley, CA M5.3 83 km 8 km
Apr 8, 2010 12km SW of Alberto Oviedo Mota, B.C., MX M5.3 134 km 10 km
Mar 23, 1994 35km E of Maneadero, B.C., MX M5.3 128 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

33 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 6 injuries.

Date Rating Distance Path Fatalities
Aug 6, 2015 EF1 83 km 4.0 mi 0
Feb 19, 2005 EF1 97 km 2.8 mi 0
Nov 10, 2000 EF1 56 km 0.4 mi 0
Jan 29, 1998 EF1 84 km 0.5 mi 0
Aug 29, 1993 EF1 80 km 0.1 mi 0
Mar 27, 1991 EF1 76 km 0.2 mi 0
Mar 19, 1991 EF1 65 km 1.0 mi 0
Feb 20, 1980 EF1 73 km 0.1 mi 0
Dec 18, 1978 EF1 96 km 0.8 mi 0
Oct 8, 1961 EF1 93 km 0.1 mi 0
Apr 13, 1956 EF1 67 km 0.1 mi 0
Aug 16, 2018 EF0 81 km 0.2 mi 0
Sep 22, 2007 EF0 82 km 0.1 mi 0
Mar 11, 2006 EF0 54 km 2.0 mi 0
Mar 10, 2006 EF0 84 km 0.2 mi 0
Feb 23, 2005 EF0 67 km 0.1 mi 0
Feb 19, 2005 EF0 91 km 2.2 mi 0
Feb 19, 2005 EF0 96 km 2.5 mi 0
Oct 17, 2004 EF0 96 km 0.2 mi 0
Jul 12, 1999 EF0 24 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami 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 — 75 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (84 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 84 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 33 km
2007 WITCH 167,551 39 km
2007 HARRIS 90,443 41 km
2002 PINES 65,407 34 km
2003 PARADISE 55,995 59 km
2007 POOMACHA 47,496 66 km
2003 MINE/OTAY 37,232 49 km
2022 FAIRVIEW 28,680 99 km
2013 MOUNTAIN 28,202 98 km
1994 PALM 21,040 86 km
2003 COYOTE 19,215 59 km
1993 GUEJITO 17,141 57 km
2006 HORSE 16,659 25 km
2020 VALLEY 16,517 29 km
1989 VAIL 15,632 78 km
2011 EAGLE 14,743 50 km
2018 CRANSTON 13,096 97 km
1996 OTAY 322 12,238 52 km
2012 WILSON 12,048 36 km
2000 PECHANGA 11,879 82 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (5°C) 3.2 in Coldest
February 48°F (9°C) 3.0 in
March 50°F (10°C) 3.3 in Wettest
April 55°F (13°C) 1.2 in
May 61°F (16°C) 0.4 in
June 70°F (21°C) 0.1 in Driest
July 71°F (22°C) 0.4 in
August 76°F (25°C) 0.7 in Warmest
September 71°F (22°C) 0.7 in
October 62°F (17°C) 0.8 in
November 53°F (12°C) 1.9 in
December 47°F (8°C) 2.4 in

Mount Laguna has a seasonal temperature swing of 35°F / from 42°F in January to 76°F in August. Total annual precipitation is 18.2 inches, with March being the wettest month (3.3") and June the driest (0.1").

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