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Weather & Climate in Harbison Canyon, CA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Harbison Canyon enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 53°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 16.1 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 1,189 feet.
Temperature
53°F Jan (12°C)
73°F Jul (23°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 1,189 ft (362 m) |
| Area | 10.1 sq mi (26.1 km²) |
| Population Density | 422/sq mi |
| Coordinates | 32.8273°N, 116.8381°W |
| Timezone | America/Los_Angeles |
| County | San Diego County County |
| Nearest Airport | San Diego International (SAN) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.7 / 100 |
| Social Vulnerability | 24.8 / 100 |
| Community Resilience | 8.3 / 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
10,593 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Apr 23, 1992 | The 1992 Joshua Tree, California Earthquake | M6.1 | 135 km | 12 km |
| Jun 15, 2010 | 8km ESE of Ocotillo, CA | M5.7 | 88 km | 9 km |
| Jun 29, 1992 | 3km ESE of Yucca Valley, California | M5.7 | 148 km | 10 km |
| Jun 28, 1992 | 11km SSE of Big Bear Lake, California | M5.5 | 148 km | 10 km |
| Jun 28, 1992 | 0km E of Yucca Valley, CA | M5.5 | 148 km | 8 km |
| Jul 7, 2010 | 20km NNW of Borrego Springs, CA | M5.4 | 74 km | 12 km |
| Aug 26, 2012 | 4km NNW of Brawley, CA | M5.4 | 123 km | 8 km |
| Aug 26, 2012 | 5km NNW of Brawley, CA | M5.3 | 122 km | 8 km |
| Mar 23, 1994 | 35km E of Maneadero, B.C., MX | M5.3 | 136 km | 5 km |
| Apr 4, 2010 | 15km SSW of Progreso, B.C., MX | M5.3 | 120 km | 10 km |
| Sep 15, 1992 | 9km SE of Yucca Valley, California | M5.3 | 145 km | 7 km |
| Jun 5, 2021 | 11km W of Calipatria, CA | M5.3 | 118 km | 6 km |
| Apr 14, 2025 | 5 km S of Julian, CA | M5.2 | 33 km | 14 km |
| Jun 12, 2005 | 10km ESE of Anza, CA | M5.2 | 82 km | 13 km |
| Jun 10, 2016 | 20km NNW of Borrego Springs, CA | M5.2 | 77 km | 12 km |
| Jun 29, 1992 | 4km ESE of Yucca Valley, CA | M5.1 | 148 km | 11 km |
| Oct 31, 2001 | 16km ESE of Anza, CA | M5.0 | 82 km | 14 km |
| Feb 19, 2008 | 14km NW of Delta, B.C., MX | M5.0 | 149 km | 6 km |
| Jun 28, 1992 | 7km SSW of Yucca Valley, California | M5.0 | 141 km | 5 km |
| Aug 21, 1993 | 12km S of Joshua Tree, California | M5.0 | 142 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
30 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 19, 2005 | EF1 | 79 km | 2.8 mi | 0 |
| Nov 10, 2000 | EF1 | 22 km | 0.4 mi | 0 |
| Jan 29, 1998 | EF1 | 50 km | 0.5 mi | 0 |
| Mar 27, 1991 | EF1 | 47 km | 0.2 mi | 0 |
| Mar 19, 1991 | EF1 | 26 km | 1.0 mi | 0 |
| Feb 20, 1980 | EF1 | 34 km | 0.1 mi | 0 |
| Dec 18, 1978 | EF1 | 65 km | 0.8 mi | 0 |
| Oct 8, 1961 | EF1 | 61 km | 0.1 mi | 0 |
| Apr 13, 1956 | EF1 | 32 km | 0.1 mi | 0 |
| Aug 16, 2018 | EF0 | 83 km | 0.2 mi | 0 |
| Sep 22, 2007 | EF0 | 47 km | 0.1 mi | 0 |
| Mar 11, 2006 | EF0 | 32 km | 2.0 mi | 0 |
| Mar 10, 2006 | EF0 | 50 km | 0.2 mi | 0 |
| Feb 23, 2005 | EF0 | 32 km | 0.1 mi | 0 |
| Feb 19, 2005 | EF0 | 72 km | 2.2 mi | 0 |
| Feb 19, 2005 | EF0 | 71 km | 2.5 mi | 0 |
| Jan 9, 2005 | EF0 | 100 km | 0.1 mi | 0 |
| Oct 17, 2004 | EF0 | 65 km | 0.2 mi | 0 |
| Jul 12, 1999 | EF0 | 44 km | 0.1 mi | 0 |
| Feb 8, 1998 | EF0 | 47 km | 3.0 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 | — | 37 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (121 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 121 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 | 14 km |
| 2007 | WITCH | 167,551 | 29 km |
| 2007 | HARRIS | 90,443 | 21 km |
| 2002 | PINES | 65,407 | 43 km |
| 2003 | PARADISE | 55,995 | 43 km |
| 2007 | POOMACHA | 47,496 | 53 km |
| 2003 | MINE/OTAY | 37,232 | 23 km |
| 2008 | YELLOW | 33,232 | 85 km |
| 2022 | FAIRVIEW | 28,680 | 94 km |
| 2020 | INDIA | 24,193 | 84 km |
| 1993 | CALIFORNIA | 23,899 | 92 km |
| 1994 | PALM | 21,040 | 95 km |
| 2003 | COYOTE | 19,215 | 67 km |
| 2007 | AMMO FIRE | 19,213 | 82 km |
| 1993 | GUEJITO | 17,141 | 34 km |
| 2006 | HORSE | 16,659 | 24 km |
| 2020 | VALLEY | 16,517 | 17 km |
| 1986 | UNNAMED | 16,390 | 89 km |
| 1989 | VAIL | 15,632 | 67 km |
| 2014 | PULGAS | 14,937 | 75 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 2.6 in | Coldest, Wettest |
| February | 57°F (14°C) | 2.4 in | |
| March | 58°F (14°C) | 2.5 in | |
| April | 61°F (16°C) | 1.1 in | |
| May | 64°F (18°C) | 0.3 in | |
| June | 69°F (20°C) | 0.1 in | Driest |
| July | 73°F (23°C) | 0.1 in | |
| August | 75°F (24°C) | 0.2 in | Warmest |
| September | 73°F (23°C) | 0.3 in | |
| October | 68°F (20°C) | 0.4 in | |
| November | 61°F (16°C) | 1.5 in | |
| December | 56°F (13°C) | 1.8 in |
Harbison Canyon has a seasonal temperature swing of 22°F / from 53°F in January to 75°F in August. Total annual precipitation is 13.1 inches, with January being the wettest month (2.6") and June the driest (0.1").