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Weather & Climate in Santa Venetia, CA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santa Venetia enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 48°F in January while summers reach 67°F in July / relatively mild seasonal variation. The area gets 326 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 25.6 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 392 feet.
Temperature
48°F Jan (9°C)
67°F Jul (19°C)
| Annual Average | 58.0°F |
| 7% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 392 ft (119 m) |
| Area | 3.7 sq mi (9.5 km²) |
| Population Density | 1,076/sq mi |
| Coordinates | 38.0055°N, 122.5028°W |
| Timezone | America/Los_Angeles |
| County | Marin County County |
| Nearest Airport | Metro Oakland International (OAK) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.4 / 100 |
| Social Vulnerability | 24.7 / 100 |
| Community Resilience | 99.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Very High |
| Tsunami | Relatively Moderate |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4,507 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| Aug 24, 2014 | The 2014 South Napa, California Earthquake | M6.0 | 29 km | 11 km |
| Apr 18, 1990 | 5 km NNW of Aromas, California | M5.4 | 141 km | 5 km |
| Apr 18, 1990 | 4 km E of Interlaken, California | M5.1 | 137 km | 7 km |
| Aug 10, 2016 | 20 km NNE of Upper Lake, California | M5.1 | 150 km | 14 km |
| Jan 16, 1993 | 9 km E of Gilroy, California | M4.9 | 143 km | 7 km |
| May 14, 2002 | 5 km SSW of Gilroy, California | M4.9 | 140 km | 7 km |
| Apr 19, 1996 | 2 km E of Aromas, California | M4.9 | 147 km | 5 km |
| Sep 3, 2000 | 5 km WSW of Yountville, California | M4.9 | 42 km | 9 km |
| Apr 18, 1990 | 4 km NNW of Aromas, California | M4.9 | 141 km | 6 km |
| Sep 4, 1995 | 13 km SW of Middletown, California | M4.8 | 78 km | 7 km |
| May 12, 2006 | 7 km W of Cobb, California | M4.7 | 94 km | 4 km |
| May 21, 1996 | 8 km ESE of East Foothills, California | M4.7 | 99 km | 8 km |
| Apr 18, 1990 | 4 km N of Aromas, California | M4.7 | 142 km | 4 km |
| Aug 11, 1993 | 14 km ESE of Alum Rock, California | M4.7 | 106 km | 9 km |
| Jan 2, 2025 | 4 km NW of Cobb, CA | M4.7 | 96 km | 1 km |
| Aug 18, 1999 | 0 km S of Bolinas, California | M4.6 | 20 km | 8 km |
| Mar 24, 1991 | 1 km NNE of Interlaken, California | M4.6 | 135 km | 15 km |
| Jan 11, 2000 | 6 km N of Geyserville, California | M4.6 | 92 km | 6 km |
| Feb 18, 2004 | 4 km WNW of Cobb, California | M4.6 | 95 km | 3 km |
| Jan 12, 2014 | 8 km W of Cobb, California | M4.5 | 94 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
42 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 5, 1998 | EF2 | 82 km | 0.6 mi | 0 |
| Jun 1, 1958 | EF2 | 52 km | 15.0 mi | 0 |
| Jan 11, 1951 | EF2 | 78 km | 5.7 mi | 0 |
| Mar 18, 2011 | EF1 | 53 km | 0.1 mi | 0 |
| Jan 23, 2010 | EF1 | 65 km | 1.6 mi | 0 |
| Mar 20, 2005 | EF1 | 40 km | 3.0 mi | 0 |
| Jan 27, 2005 | EF1 | 87 km | 0.5 mi | 0 |
| Dec 5, 1998 | EF1 | 52 km | 1.5 mi | 0 |
| May 5, 1998 | EF1 | 77 km | 0.3 mi | 0 |
| Dec 23, 1996 | EF1 | 46 km | 6.0 mi | 0 |
| Feb 22, 1996 | EF1 | 64 km | 1.0 mi | 0 |
| Dec 2, 1992 | EF1 | 52 km | 1.0 mi | 0 |
| Dec 2, 1992 | EF1 | 56 km | 7.5 mi | 0 |
| Dec 2, 1992 | EF1 | 67 km | 3.0 mi | 0 |
| Feb 27, 1983 | EF1 | 52 km | 0.8 mi | 0 |
| Jan 14, 1980 | EF1 | 80 km | 0.3 mi | 0 |
| Nov 10, 1964 | EF1 | 64 km | 1.0 mi | 0 |
| Feb 17, 1959 | EF1 | 87 km | 0.5 mi | 0 |
| Apr 1, 1958 | EF1 | 45 km | 0.2 mi | 0 |
| Sep 28, 2019 | EF0 | 92 km | 1.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
5 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 | 49 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 121 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | — | 59 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | — | 34 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | — | — | 104 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (110 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 110 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: HENNESSEY (314,241 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | HENNESSEY | 314,241 | 71 km |
| 2018 | COUNTY | 92,450 | 81 km |
| 2020 | CZU AUG LIGHTNING | 85,894 | 99 km |
| 2019 | KINCADE | 77,780 | 78 km |
| 2015 | VALLEY | 77,507 | 88 km |
| 2020 | GLASS | 68,020 | 61 km |
| 2017 | NUNS | 56,883 | 38 km |
| 2020 | WALLBRIDGE | 55,194 | 81 km |
| 2017 | ATLAS | 51,664 | 46 km |
| 2004 | RUMSEY | 39,335 | 86 km |
| 1999 | SIXTEEN | 37,162 | 90 km |
| 2017 | TUBBS | 36,981 | 64 km |
| 1988 | MILLER | 35,750 | 59 km |
| 2017 | 18,691 | 91 km | |
| 2006 | ZAM ASSIST | 14,404 | 98 km |
| 2004 | GEYSERS | 12,075 | 83 km |
| 1995 | VISION | 11,931 | 32 km |
| 1985 | UNNAMED | 9,655 | 100 km |
| 2015 | WRAGG | 8,455 | 65 km |
| 2014 | MONTICELLO | 6,984 | 70 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 8.1 in | Coldest, Wettest |
| February | 51°F (11°C) | 6.9 in | |
| March | 53°F (12°C) | 5.6 in | |
| April | 56°F (13°C) | 2.1 in | |
| May | 60°F (16°C) | 0.8 in | |
| June | 64°F (18°C) | 0.2 in | |
| July | 67°F (19°C) | 0.1 in | Driest |
| August | 68°F (20°C) | 0.1 in | Warmest |
| September | 67°F (19°C) | 0.4 in | |
| October | 62°F (17°C) | 2.1 in | |
| November | 54°F (12°C) | 5.6 in | |
| December | 48°F (9°C) | 6.7 in |
Santa Venetia has a seasonal temperature swing of 19°F / from 48°F in January to 68°F in August. Total annual precipitation is 38.6 inches, with January being the wettest month (8.1") and July the driest (0.1").