Weather & Climate in Silverado Resort, CA

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

Silverado Resort enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 49°F in January while summers reach 69°F in July. 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 26.7 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 242 feet.

Temperature

49°F Jan (10°C) 69°F Jul (21°C)

Annual Average	60.3°F
	12% above US avg
January Average	49°F (10°C)
July Average	69°F (21°C)
Sunny Days	326 days/yr

Geography

Elevation	242 ft (74 m)
Area	1.9 sq mi (4.9 km²)
Population Density	490/sq mi
Coordinates	38.3563°N, 122.2563°W
Timezone	America/Los_Angeles
County	Napa County County
Nearest Airport	Sacramento International (SMF) 43 miles away

Precipitation & Snow

Annual Rainfall 26.7"

30% below US avg

Snowfall 0.0"

Wettest Month (Jan) 7.17"

Driest Month (Jul) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	95.3 / 100
Social Vulnerability	38.5 / 100
Community Resilience	76.0 / 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	Very High
Cold Wave	No Rating
Landslide	Relatively High
Coastal Flood	Relatively Moderate
Tsunami	Very Low
Volcano	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4,294 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	16 km	11 km
Aug 10, 2016	20 km NNE of Upper Lake, California	M5.1	118 km	14 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	14 km	9 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	56 km	7 km
Apr 18, 2007	15 km N of Potter Valley, California	M4.8	144 km	5 km
May 12, 2006	7 km W of Cobb, California	M4.7	71 km	4 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	120 km	8 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	127 km	9 km
Jan 2, 2025	4 km NW of Cobb, CA	M4.7	70 km	1 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	63 km	8 km
Jan 11, 2000	6 km N of Geyserville, California	M4.6	73 km	6 km
Feb 18, 2004	4 km WNW of Cobb, California	M4.6	70 km	3 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	132 km	4 km
Jan 12, 2014	8 km W of Cobb, California	M4.5	70 km	2 km
Sep 25, 2012	3 km N of Talmage, California	M4.5	120 km	11 km
Aug 3, 2006	5 km W of Glen Ellen, California	M4.5	29 km	9 km
Jun 8, 2024	7 km NW of The Geysers, CA	M4.5	71 km	4 km
Sep 19, 1992	7 km NW of Cobb, California	M4.5	73 km	3 km
Apr 24, 2007	7 km WSW of Cobb, California	M4.5	68 km	2 km
Jun 3, 2023	2km NW of The Geysers, CA	M4.5	66 km	4 km

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

Tornado History

73 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Feb 7, 1978	EF2	80 km	1.9 mi	0
Jun 1, 1958	EF2	64 km	15.0 mi	0
Oct 22, 2012	EF1	96 km	2.0 mi	0
Mar 18, 2011	EF1	41 km	0.1 mi	0
Jan 23, 2010	EF1	65 km	1.6 mi	0
Mar 20, 2005	EF1	80 km	3.0 mi	0
Jan 27, 2005	EF1	81 km	0.5 mi	0
Dec 5, 1998	EF1	40 km	1.5 mi	0
Dec 23, 1996	EF1	60 km	6.0 mi	0
Feb 22, 1996	EF1	47 km	1.0 mi	0
Dec 2, 1992	EF1	50 km	1.0 mi	0
Dec 2, 1992	EF1	54 km	3.0 mi	0
Dec 2, 1992	EF1	56 km	7.5 mi	0
Apr 19, 1988	EF1	99 km	0.2 mi	0
Mar 22, 1983	EF1	89 km	2.0 mi	0
Feb 27, 1983	EF1	40 km	0.8 mi	0
May 31, 1967	EF1	94 km	0.1 mi	0
Nov 10, 1964	EF1	51 km	1.0 mi	0
Feb 17, 1959	EF1	88 km	0.5 mi	0
Apr 1, 1958	EF1	82 km	0.2 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	74 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	95 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	76 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	132 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (82 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	82 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	30 km
2015	ROCKY	96,125	64 km
2018	COUNTY	92,450	37 km
2019	KINCADE	77,780	57 km
2015	VALLEY	77,507	57 km
2020	GLASS	68,020	33 km
2017	NUNS	56,883	22 km
2020	WALLBRIDGE	55,194	72 km
2017	ATLAS	51,664	2 km
2004	RUMSEY	39,335	45 km
1999	SIXTEEN	37,162	50 km
2017	TUBBS	36,981	44 km
1988	MILLER	35,750	16 km
2017	POCKET	18,691	71 km
2012	SIXTEEN COMPLEX	18,191	73 km
2006	ZAM ASSIST	14,404	54 km
2008	WALKER	12,441	81 km
2004	GEYSERS	12,075	59 km
1995	VISION	11,931	63 km
1985	UNNAMED	9,655	76 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (10°C)	7.2 in	Wettest
February	49°F (9°C)	5.6 in
March	51°F (11°C)	4.6 in
April	56°F (13°C)	1.9 in
May	61°F (16°C)	0.6 in
June	67°F (20°C)	0.2 in
July	69°F (21°C)	0.0 in	Driest
August	71°F (22°C)	0.1 in	Warmest
September	69°F (20°C)	0.5 in
October	62°F (17°C)	1.9 in
November	52°F (11°C)	4.8 in
December	46°F (8°C)	5.4 in	Coldest

Silverado Resort has a seasonal temperature swing of 25°F / from 46°F in December to 71°F in August. Total annual precipitation is 32.8 inches, with January being the wettest month (7.2") and July the driest (0.0").

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