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Weather & Climate in Denair, CA

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

Denair enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 49°F in January while summers reach 79°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 12.4 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 122 feet.

Temperature

49°F Jan (9°C) 79°F Jul (26°C)
Annual Average64.0°F
19% above US avg
January Average49°F (9°C)
July Average79°F (26°C)
Sunny Days330 days/yr

Geography

Elevation122 ft (37 m)
Area1.6 sq mi (4.2 km²)
Population Density3,101/sq mi
Coordinates37.5254°N, 120.7974°W
TimezoneAmerica/Los_Angeles
CountyMerced County County
Nearest AirportMerced Yosemite Regional (MCE)
23 miles away

Precipitation & Snow

Annual Rainfall 12.4"
67% below US avg
Snowfall 0.0"
Wettest Month (Jan) 2.44"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score96.9 / 100
Social Vulnerability61.7 / 100
Community Resilience7.3 / 100

Hazard Breakdown

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

Earthquake History

4,319 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.

Apr 18, 1990 5 km NNW of Aromas, California M5.4 101 km 5 km
Oct 21, 2012 24 km NE of San Lucas, California M5.3 135 km 9 km
Aug 12, 1998 10 km SW of Ridgemark, California M5.1 104 km 9 km
Apr 18, 1990 4 km E of Interlaken, California M5.1 101 km 7 km
Jan 16, 1993 9 km E of Gilroy, California M4.9 82 km 7 km
Apr 23, 1995 22 km NNE of Soledad, California M4.9 109 km 7 km
Apr 18, 1990 4 km NNW of Aromas, California M4.9 101 km 6 km
May 14, 2002 5 km SSW of Gilroy, California M4.9 94 km 7 km
Apr 19, 1996 2 km E of Aromas, California M4.9 101 km 5 km
Apr 18, 1990 4 km N of Aromas, California M4.7 100 km 4 km
May 21, 1996 8 km ESE of East Foothills, California M4.7 84 km 8 km
Aug 11, 1993 14 km ESE of Alum Rock, California M4.7 81 km 9 km
Aug 27, 2011 21 km NE of Soledad, California M4.6 110 km 8 km
Mar 24, 1991 1 km NNE of Interlaken, California M4.6 103 km 15 km
Sep 19, 2023 15 km SW of Westley, CA M4.5 45 km 4 km
Jan 12, 2011 9 km SSE of San Juan Bautista, California M4.5 104 km 8 km
Jan 20, 2015 27 km ENE of Greenfield, California M4.4 122 km 9 km
Apr 4, 2023 1km NNW of Tres Pinos, CA M4.4 93 km 10 km
Apr 7, 1990 3 km SSE of North Gate, California M4.4 111 km 8 km
Feb 25, 2001 11 km ESE of East Foothills, California M4.4 83 km 7 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

75 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 2 injuries.

Date Rating Distance Path Fatalities
Mar 11, 1985 EF2 92 km 0.5 mi 0
Apr 27, 1953 EF2 23 km 0.1 mi 0
Mar 11, 2023 EF1 51 km 0.8 mi 0
Jan 10, 2023 EF1 62 km 0.4 mi 0
Nov 15, 2015 EF1 1 km 3.0 mi 0
Jan 23, 2010 EF1 96 km 1.6 mi 0
Apr 14, 2006 EF1 23 km 0.5 mi 0
Dec 16, 2002 EF1 33 km 1.3 mi 0
May 20, 2002 EF1 89 km 2.7 mi 0
Feb 14, 1998 EF1 78 km 3.0 mi 0
Dec 12, 1996 EF1 28 km 0.6 mi 0
Nov 22, 1996 EF1 38 km 0.2 mi 0
Jan 14, 1995 EF1 65 km 1.0 mi 0
Apr 19, 1988 EF1 78 km 0.2 mi 0
Jan 14, 1980 EF1 96 km 0.3 mi 0
Mar 4, 1978 EF1 12 km 2.5 mi 0
Mar 4, 1978 EF1 13 km 1.0 mi 0
Mar 1, 1978 EF1 20 km 1.5 mi 0
May 31, 1967 EF1 66 km 0.1 mi 0
Apr 22, 1967 EF1 93 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year Location Cause Max Wave Deaths Distance
1868 N. CALIFORNIA Eruption + Earthquake 4.5 m 30 116 km
1989 N. CALIFORNIA Earthquake 1.0 m 62 110 km
1856 N. CALIFORNIA Eruption + Earthquake 0.6 m — 133 km
1865 N. CALIFORNIA Eruption + Earthquake — — 104 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Mammoth Mountain (156 km).

Name Type Elevation Last Eruption Distance
Mammoth Mountain Lava dome(s) 3,369 m (11,053 ft) 1260 156 km
Mono-Inyo Craters Lava dome(s) 2,796 m (9,173 ft) 1380 159 km
Mono Lake Volcanic Field Pyroclastic cone(s) 2,121 m (6,959 ft) 1790 164 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SCU LIGHTNING COMPLEX (405,787 acres, 2020).

Year Name Acres Burned Distance
2020 SCU LIGHTNING COMPLEX 405,787 62 km
2013 RIM 257,084 85 km
2018 FERGUSON 97,307 88 km
2017 DETWILER 83,297 60 km
2015 BUTTE 72,894 84 km
1996 ACKERSON COMPLEX (ACKERSON) 58,161 96 km
1987 PAPER 49,296 73 km
1987 LARSON 49,250 79 km
2007 LICK 47,424 65 km
1987 HAMM 39,333 72 km
2006 CANYON 36,851 52 km
2008 TELEGRAPH 33,479 70 km
2022 OAK 19,408 82 km
1992 GULCH 18,019 78 km
1990 A-ROCK 17,706 91 km
1996 ROGGE 17,559 73 km
2003 ANNIE 17,383 51 km
1996 MERCY 16,993 74 km
2024 CORRAL 16,138 60 km
2001 DARBY 14,734 86 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 49°F (9°C) 2.4 in Wettest
February 51°F (10°C) 2.3 in
March 55°F (13°C) 2.2 in
April 60°F (15°C) 1.2 in
May 66°F (19°C) 0.2 in
June 72°F (22°C) 0.1 in
July 79°F (26°C) 0.0 in Warmest, Driest
August 76°F (24°C) 0.1 in
September 72°F (22°C) 0.2 in
October 64°F (18°C) 0.8 in
November 53°F (12°C) 2.1 in
December 45°F (7°C) 1.9 in Coldest

Denair has a seasonal temperature swing of 35°F / from 45°F in December to 79°F in July. Total annual precipitation is 13.6 inches, with January being the wettest month (2.4") and July the driest (0.0").

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