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Weather & Climate in Ramona, CA

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

Ramona enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 51°F in January while summers reach 73°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 14.7 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 1,444 feet.

Temperature

51°F Jan (11°C) 73°F Jul (23°C)
Annual Average61.2°F
13% above US avg
January Average51°F (11°C)
July Average73°F (23°C)
Sunny Days330 days/yr

Geography

Elevation1,444 ft (440 m)
Area38.4 sq mi (99.5 km²)
Population Density594/sq mi
Coordinates33.0458°N, 116.8775°W
TimezoneAmerica/Los_Angeles
CountySan Diego County County
Nearest AirportSan Diego International (SAN)
28 miles away

Precipitation & Snow

Annual Rainfall 14.7"
61% below US avg
Wettest Month (Jan) 2.99"
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

11,731 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 135 km 0 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 129 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 114 km 12 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 128 km -1 km
Jun 15, 2010 8km ESE of Ocotillo, CA M5.7 98 km 9 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 130 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 126 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 134 km 6 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 124 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 144 km 3 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 126 km 8 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 56 km 12 km
Aug 26, 2012 4km NNW of Brawley, CA M5.4 125 km 8 km
Jun 28, 1992 26km NNW of Yucca Valley, CA M5.4 148 km 4 km
Jul 1, 1992 24km N of Yucca Valley, California M5.3 148 km 5 km
Aug 26, 2012 5km NNW of Brawley, CA M5.3 124 km 8 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 144 km 0 km
Sep 15, 1992 9km SE of Yucca Valley, California M5.3 123 km 7 km
Apr 4, 2010 15km SSW of Progreso, B.C., MX M5.3 134 km 10 km
Dec 4, 1992 10km SE of Lucerne Valley, California M5.3 147 km 1 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

50 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 8 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 99 km 2.8 mi 0
Aug 6, 2015 EF1 92 km 4.0 mi 0
Feb 19, 2005 EF1 55 km 2.8 mi 0
Nov 10, 2000 EF1 17 km 0.4 mi 0
Jan 29, 1998 EF1 39 km 0.5 mi 0
Dec 22, 1996 EF1 98 km 0.1 mi 0
Mar 27, 1991 EF1 30 km 0.2 mi 0
Mar 19, 1991 EF1 39 km 1.0 mi 0
Nov 9, 1982 EF1 95 km 0.2 mi 0
Feb 20, 1980 EF1 42 km 0.1 mi 0
Dec 18, 1978 EF1 50 km 0.8 mi 0
Jul 20, 1974 EF1 79 km 1.0 mi 0
Oct 8, 1961 EF1 46 km 0.1 mi 0
Apr 1, 1958 EF1 98 km 0.5 mi 0
Apr 13, 1956 EF1 50 km 0.1 mi 0
Oct 8, 2022 EF0 79 km 1.6 mi 0
Aug 16, 2018 EF0 60 km 0.2 mi 0
Oct 17, 2015 EF0 76 km 0.0 mi 0
Sep 9, 2012 EF0 88 km 0.0 mi 0
Aug 12, 2012 EF0 86 km 0.5 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 — 49 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Salton Buttes (119 km).

Name Type Elevation Last Eruption Distance
Salton Buttes Lava dome(s) -40 m (-131 ft) 210 119 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 16 km
2007 WITCH 167,551 11 km
2007 HARRIS 90,443 46 km
2002 PINES 65,407 30 km
2003 PARADISE 55,995 18 km
2007 POOMACHA 47,496 29 km
2006 ESPERANZA 40,566 91 km
2003 MINE/OTAY 37,232 47 km
2008 YELLOW 33,232 66 km
2022 FAIRVIEW 28,680 70 km
2013 MOUNTAIN 28,202 80 km
1998 EDNA 27,561 95 km
2020 INDIA 24,193 65 km
1993 CALIFORNIA 23,899 67 km
2018 HOLY 22,845 91 km
1994 PALM 21,040 74 km
1993 ORTEGA 20,912 83 km
2013 SILVER 20,863 93 km
2003 COYOTE 19,215 47 km
2007 AMMO FIRE 19,213 64 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 51°F (11°C) 3.0 in Coldest, Wettest
February 54°F (12°C) 2.8 in
March 55°F (13°C) 2.7 in
April 59°F (15°C) 1.3 in
May 63°F (17°C) 0.4 in
June 69°F (21°C) 0.1 in Driest
July 73°F (23°C) 0.1 in
August 77°F (25°C) 0.2 in Warmest
September 74°F (23°C) 0.4 in
October 68°F (20°C) 0.4 in
November 59°F (15°C) 1.8 in
December 54°F (12°C) 2.1 in

Ramona has a seasonal temperature swing of 25°F / from 51°F in January to 77°F in August. Total annual precipitation is 15.3 inches, with January being the wettest month (3.0") and June the driest (0.1").

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