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Weather & Climate in Holtville, CA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Holtville has a warm climate with an average annual temperature of 74°F (24°C). Winters average 57°F in January while summers reach 93°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 2.5 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 -10 feet.
Temperature
57°F Jan (14°C)
93°F Jul (34°C)
| Annual Average | 74.3°F |
| 38% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 93°F (34°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | -10 ft (-3 m) |
| Area | 1.2 sq mi (3.0 km²) |
| Population Density | 4,918/sq mi |
| Coordinates | 32.8138°N, 115.3783°W |
| Timezone | America/Los_Angeles |
| County | Imperial County County |
| Nearest Airport | Calexico International (CXL) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.5 / 100 |
| Social Vulnerability | 85.2 / 100 |
| Community Resilience | 2.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | No Rating |
| Landslide | Very Low |
| Volcano | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
11,320 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Apr 4, 2010 | The 2010 Sierra El Mayor, B.C., Mexico Earthquake | M7.2 | 59 km | 10 km |
| Dec 30, 2009 | 12km N of Delta, B.C., MX | M5.8 | 43 km | 6 km |
| Jun 15, 2010 | 8km ESE of Ocotillo, CA | M5.7 | 51 km | 9 km |
| Apr 4, 2010 | 12km SSW of Estacion Coahuila, B.C., MX | M5.7 | 85 km | 10 km |
| Feb 22, 2002 | 13km WSW of Delta, B.C., MX | M5.7 | 55 km | 7 km |
| Dec 8, 2001 | 22km S of Estacion Coahuila, B.C., MX | M5.7 | 97 km | 7 km |
| Mar 7, 2020 | 71km SE of Estacion Coahuila, B.C., MX | M5.5 | 148 km | 10 km |
| Apr 4, 2010 | 9km SW of Delta, B.C., MX | M5.4 | 58 km | 10 km |
| Jul 7, 2010 | 20km NNW of Borrego Springs, CA | M5.4 | 122 km | 12 km |
| Aug 26, 2012 | 4km NNW of Brawley, CA | M5.4 | 27 km | 8 km |
| Apr 4, 2010 | 12km WNW of Alberto Oviedo Mota, B.C., MX | M5.4 | 61 km | 10 km |
| May 24, 2006 | 6km SSW of Delta, B.C., MX | M5.4 | 58 km | 6 km |
| Dec 3, 1991 | 71km E of Maneadero, B.C., MX | M5.3 | 125 km | 6 km |
| Aug 26, 2012 | 5km NNW of Brawley, CA | M5.3 | 28 km | 8 km |
| Apr 8, 2010 | 12km SW of Alberto Oviedo Mota, B.C., MX | M5.3 | 73 km | 10 km |
| Mar 23, 1994 | 35km E of Maneadero, B.C., MX | M5.3 | 142 km | 5 km |
| Apr 4, 2010 | 15km SSW of Progreso, B.C., MX | M5.3 | 47 km | 10 km |
| Jun 5, 2021 | 11km W of Calipatria, CA | M5.3 | 44 km | 6 km |
| Apr 5, 2010 | 27km SSW of Estacion Coahuila, B.C., MX | M5.2 | 96 km | 10 km |
| Apr 14, 2025 | 5 km S of Julian, CA | M5.2 | 116 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
15 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.
| Date | Rating | Distance | Path | Fatalities |
| Aug 29, 1993 | EF1 | 18 km | 0.1 mi | 0 |
| Sep 22, 1987 | EF1 | 80 km | 0.5 mi | 0 |
| Sep 13, 1966 | EF1 | 67 km | 0.1 mi | 0 |
| Jul 5, 1965 | EF1 | 71 km | 2.0 mi | 0 |
| Oct 13, 2018 | EF0 | 95 km | 0.1 mi | 0 |
| Jan 21, 2010 | EF0 | 97 km | 14.3 mi | 0 |
| Aug 30, 2000 | EF0 | 36 km | 3.0 mi | 0 |
| Sep 24, 1997 | EF0 | 28 km | 1.5 mi | 0 |
| May 20, 1997 | EF0 | 96 km | 0.1 mi | 0 |
| May 5, 1992 | EF0 | 18 km | 0.2 mi | 0 |
| Sep 22, 1987 | EF0 | 84 km | 0.5 mi | 0 |
| Sep 18, 1985 | EF0 | 94 km | 0.1 mi | 0 |
| Sep 28, 1979 | EF0 | 91 km | 0.1 mi | 0 |
| Jun 7, 1972 | EF0 | 62 km | 0.1 mi | 0 |
| Jul 5, 1965 | EF0 | 51 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (48 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 48 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: BUTTERFIELD (7,165 acres, 1995).
| Year | Name | Acres Burned | Distance |
| 1995 | BUTTERFIELD | 7,165 | 99 km |
| 2012 | BORDER 6 | 5,301 | 87 km |
| 2007 | INKOPAH | 5,037 | 68 km |
| 2006 | CIBOLA | 4,703 | 85 km |
| 1989 | THING 2 | 4,650 | 94 km |
| 1999 | LAGUNA 100 | 4,586 | 97 km |
| 2011 | THREE SLASHES | 4,581 | 81 km |
| 1999 | SHOCKEY | 3,522 | 99 km |
| 1989 | LAGUNA II | 3,042 | 85 km |
| 2012 | SHOCKEY | 2,667 | 92 km |
| 1989 | FERGUSON | 2,284 | 85 km |
| 1992 | WALTERS | 2,170 | 81 km |
| 2013 | ISLAND LAKE | 2,021 | 73 km |
| 1989 | UNNAMED | 1,847 | 91 km |
| 1987 | FERGUSONLK | 1,692 | 84 km |
| 2021 | CLIP | 1,295 | 72 km |
| 2002 | TROY | 1,279 | 95 km |
| 2019 | BERMUDA | 1,175 | 86 km |
| 1992 | MANZANITA | 1,091 | 87 km |
| 2003 | MITTRY | 1,066 | 86 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 0.4 in | |
| February | 59°F (15°C) | 0.3 in | |
| March | 63°F (17°C) | 0.2 in | |
| April | 69°F (21°C) | 0.1 in | |
| May | 76°F (24°C) | 0.0 in | |
| June | 85°F (29°C) | 0.0 in | Driest |
| July | 93°F (34°C) | 0.1 in | Warmest |
| August | 91°F (33°C) | 0.4 in | |
| September | 86°F (30°C) | 0.4 in | |
| October | 74°F (24°C) | 0.3 in | |
| November | 62°F (17°C) | 0.2 in | |
| December | 54°F (12°C) | 0.4 in | Coldest, Wettest |
Holtville has a seasonal temperature swing of 38°F / from 54°F in December to 93°F in July. Total annual precipitation is 2.8 inches, with December being the wettest month (0.4") and June the driest (0.0").