Weather & Climate in Camino Tassajara, CA

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

Camino Tassajara enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 48°F in January while summers reach 72°F in July. The area gets 323 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 26.1 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 786 feet.

Temperature

48°F Jan (9°C) 72°F Jul (22°C)

Annual Average	58.4°F
	8% above US avg
January Average	48°F (9°C)
July Average	72°F (22°C)
Sunny Days	323 days/yr

Geography

Elevation	786 ft (240 m)
Area	1.3 sq mi (3.3 km²)
Population Density	4,996/sq mi
Coordinates	37.7909°N, 121.8851°W
Timezone	America/Los_Angeles
County	Contra Costa County County
Nearest Airport	Metro Oakland International (OAK) 19 miles away

Precipitation & Snow

Annual Rainfall 26.1"

31% below US avg

Snowfall 0.7"

Wettest Month (Jan) 3.78"

Driest Month (Jul) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very High
Risk Score	99.5 / 100
Social Vulnerability	21.5 / 100
Community Resilience	67.8 / 100

Hazard Breakdown

Tornado	Relatively Low
Earthquake	Relatively High
Wildfire	Relatively Moderate
Flood	Very High
Hail	Very Low
Strong Wind	Relatively Low
Heat Wave	Relatively High
Winter Weather	Very Low
Lightning	Relatively High
Drought	Relatively High
Cold Wave	No Rating
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

6,020 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	60 km	11 km
Apr 18, 1990	5 km NNW of Aromas, California	M5.4	98 km	5 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	121 km	9 km
Apr 18, 1990	4 km E of Interlaken, California	M5.1	94 km	7 km
Jan 16, 1993	9 km E of Gilroy, California	M4.9	94 km	7 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	80 km	9 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	145 km	7 km
May 14, 2002	5 km SSW of Gilroy, California	M4.9	95 km	7 km
Apr 19, 1996	2 km E of Aromas, California	M4.9	104 km	5 km
Apr 18, 1990	4 km NNW of Aromas, California	M4.9	98 km	6 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	124 km	7 km
May 12, 2006	7 km W of Cobb, California	M4.7	140 km	4 km
Apr 18, 1990	4 km N of Aromas, California	M4.7	98 km	4 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	50 km	8 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	56 km	9 km
Jan 2, 2025	4 km NW of Cobb, CA	M4.7	140 km	1 km
Aug 27, 2011	21 km NE of Soledad, California	M4.6	148 km	8 km
Mar 24, 1991	1 km NNE of Interlaken, California	M4.6	93 km	15 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	72 km	8 km
Jan 11, 2000	6 km N of Geyserville, California	M4.6	141 km	6 km

Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tornado History

71 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 9 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1998	EF2	49 km	0.6 mi	0
Apr 27, 1953	EF2	79 km	0.1 mi	0
Jan 11, 1951	EF2	51 km	5.7 mi	0
Dec 14, 2024	EF1	84 km	0.3 mi	0
Nov 15, 2015	EF1	99 km	3.0 mi	0
Jan 23, 2010	EF1	17 km	1.6 mi	0
Apr 14, 2006	EF1	79 km	0.5 mi	0
Mar 20, 2005	EF1	50 km	3.0 mi	0
Dec 20, 2001	EF1	92 km	0.5 mi	0
May 5, 1998	EF1	50 km	0.3 mi	0
Dec 12, 1996	EF1	91 km	0.6 mi	0
Apr 19, 1988	EF1	77 km	0.2 mi	0
Jan 14, 1980	EF1	35 km	0.3 mi	0
Mar 4, 1978	EF1	95 km	2.5 mi	0
Mar 1, 1978	EF1	85 km	1.5 mi	0
May 31, 1967	EF1	55 km	0.1 mi	0
Apr 1, 1965	EF1	91 km	0.1 mi	0
Apr 1, 1958	EF1	45 km	0.2 mi	0
Jan 14, 2023	EF0	88 km	0.3 mi	0
Nov 8, 2022	EF0	78 km	0.8 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	21 km
1989	N. CALIFORNIA	Earthquake	1.0 m	62	84 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	-	49 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	-	55 km
1865	N. CALIFORNIA	Eruption + Earthquake	-	-	66 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (152 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	152 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	47 km
2020	HENNESSEY	314,241	99 km
2020	CZU AUG LIGHTNING	85,894	77 km
2017	NUNS	56,883	82 km
2017	ATLAS	51,664	71 km
2007	LICK	47,424	75 km
2006	CANYON	36,851	68 km
1988	MILLER	35,750	73 km
2003	ANNIE	17,383	84 km
2024	CORRAL	16,138	41 km
2018	WAVERLY	12,238	94 km
2009	CORRAL	12,006	41 km
1995	VISION	11,931	90 km
1985	LEXINGTON	11,550	72 km
2015	WRAGG	8,455	78 km
2009	LOCKHEED	8,287	84 km
2003	BIRD	7,727	55 km
2014	MONTICELLO	6,984	85 km
1984	SITE 300 3	6,911	39 km
2005	TESLA	6,638	32 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	48°F (9°C)	3.8 in	Wettest
February	51°F (10°C)	3.2 in
March	53°F (12°C)	3.0 in
April	57°F (14°C)	1.2 in
May	61°F (16°C)	0.4 in
June	66°F (19°C)	0.1 in
July	72°F (22°C)	0.0 in	Warmest, Driest
August	70°F (21°C)	0.1 in
September	69°F (20°C)	0.3 in
October	63°F (17°C)	1.1 in
November	54°F (12°C)	2.6 in
December	47°F (9°C)	2.9 in	Coldest

Camino Tassajara has a seasonal temperature swing of 25°F / from 47°F in December to 72°F in July. Total annual precipitation is 18.7 inches, with January being the wettest month (3.8") and July the driest (0.0").

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