Weather & Climate in Fair Oaks, CA

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

Fair Oaks enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 49°F in January while summers reach 78°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 19.2 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 194 feet.

Temperature

49°F Jan (9°C) 78°F Jul (26°C)

Annual Average	63.4°F
	17% above US avg
January Average	49°F (9°C)
July Average	78°F (26°C)
Sunny Days	330 days/yr

Geography

Elevation	194 ft (59 m)
Area	11.3 sq mi (29.1 km²)
Population Density	2,944/sq mi
Coordinates	38.6502°N, 121.2510°W
Timezone	America/Los_Angeles
County	Sacramento County County
Nearest Airport	Sacramento International (SMF) 19 miles away

Precipitation & Snow

Annual Rainfall 19.2"

49% below US avg

Snowfall 0.0"

Wettest Month (Jan) 3.90"

Driest Month (Jul) 0.08"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	98.1 / 100
Social Vulnerability	37.4 / 100
Community Resilience	57.0 / 100

Hazard Breakdown

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

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

Earthquake History

5,040 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.

Sep 12, 1994	4 km S of Carter Springs, Nevada	M6.1	140 km	14 km
Aug 24, 2014	The 2014 South Napa, California Earthquake	M6.0	104 km	11 km
Aug 10, 2001	3 km N of Blairsden, California	M5.2	140 km	5 km
Apr 26, 2008	1 km NW of Mogul, Nevada	M5.1	149 km	3 km
Sep 12, 1994	8 km ESE of Mesa Vista, California	M5.1	135 km	-1 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	106 km	9 km
Dec 22, 1995	California-Nevada border region	M4.9	141 km	4 km
Apr 26, 2008	0 km N of Mogul, Nevada	M4.8	150 km	3 km
Oct 30, 1998	4 km N of Tahoe Vista, California	M4.8	126 km	1 km
Dec 28, 1995	9 km WNW of Topaz Lake, Nevada	M4.8	139 km	-1 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	130 km	7 km
Jun 26, 2005	8 km NNW of Tahoe Vista, California	M4.8	124 km	-2 km
May 12, 2006	7 km W of Cobb, California	M4.7	137 km	4 km
Dec 23, 1995	8 km WNW of Topaz Lake, Nevada	M4.7	141 km	-1 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	149 km	8 km
Jan 2, 2025	4 km NW of Cobb, CA	M4.7	132 km	1 km
May 7, 2021	19km NW of Truckee, CA	M4.7	121 km	10 km
Jul 8, 2021	29km ENE of Dardanelle, CA	M4.6	150 km	2 km
Dec 12, 1996	4 km SSW of Topaz Lake, Nevada	M4.6	147 km	-2 km
Jan 11, 2000	6 km N of Geyserville, California	M4.6	145 km	6 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Feb 7, 1978	EF2	18 km	1.9 mi	0
Jan 10, 2023	EF1	76 km	0.4 mi	0
Dec 24, 2015	EF1	13 km	6.2 mi	0
Oct 22, 2012	EF1	46 km	4.0 mi	0
Oct 22, 2012	EF1	53 km	0.3 mi	0
Oct 22, 2012	EF1	56 km	2.0 mi	0
Jan 23, 2010	EF1	94 km	1.6 mi	0
Jan 8, 2005	EF1	93 km	0.1 mi	0
Jan 7, 1993	EF1	95 km	0.1 mi	0
Dec 17, 1992	EF1	75 km	5.0 mi	0
Apr 19, 1988	EF1	8 km	1.0 mi	0
Apr 19, 1988	EF1	54 km	0.2 mi	0
Mar 22, 1983	EF1	12 km	2.0 mi	0
Jun 28, 1970	EF1	91 km	2.3 mi	0
May 31, 1967	EF1	76 km	0.1 mi	0
Jan 14, 2023	EF0	38 km	0.3 mi	0
Nov 8, 2022	EF0	36 km	0.8 mi	0
Nov 18, 2020	EF0	22 km	4.4 mi	0
May 18, 2020	EF0	33 km	0.1 mi	0
Sep 28, 2019	EF0	44 km	1.7 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Tsunami History

1 tsunami 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	129 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Clear Lake (136 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	136 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	90 km
2021	CALDOR	226,583	84 km
2014	KING	99,070	69 km
2018	COUNTY	92,450	79 km
2022	MOSQUITO	77,858	65 km
2015	BUTTE	72,894	72 km
2017	ATLAS	51,664	92 km
2004	RUMSEY	39,335	90 km
1999	SIXTEEN	37,162	95 km
1988	49R	36,673	66 km
1988	MILLER	35,750	77 km
2013	AMERICAN	27,938	79 km
1992	CLEVELAND	21,835	74 km
2008	AMERICAN RIVER COMPLEX (GOVERNMENT)	20,709	84 km
2012	SIXTEEN COMPLEX	18,191	100 km
1992	GULCH	18,019	85 km
2004	POWER	17,266	86 km
2001	STAR	16,846	83 km
2017	CASCADE	16,155	80 km
2001	DARBY	14,734	97 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (9°C)	3.9 in	Wettest
February	52°F (11°C)	3.3 in
March	55°F (13°C)	3.2 in
April	60°F (15°C)	1.5 in
May	67°F (19°C)	0.4 in
June	73°F (23°C)	0.2 in
July	78°F (26°C)	0.1 in	Warmest, Driest
August	76°F (25°C)	0.1 in
September	73°F (23°C)	0.4 in
October	65°F (18°C)	1.3 in
November	53°F (12°C)	3.2 in
December	46°F (8°C)	2.9 in	Coldest

Fair Oaks has a seasonal temperature swing of 32°F / from 46°F in December to 78°F in July. Total annual precipitation is 20.4 inches, with January being the wettest month (3.9") and July the driest (0.1").

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