Weather & Climate in Rancho Murieta, CA

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

Rancho Murieta 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 204 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	204 ft (62 m)
Area	12.1 sq mi (31.3 km²)
Population Density	472/sq mi
Coordinates	38.5007°N, 121.0740°W
Timezone	America/Los_Angeles
County	Sacramento County County
Nearest Airport	Sacramento International (SMF) 31 miles away

Precipitation & Snow

Annual Rainfall 19.2"

49% below US avg

Snowfall 0.0"

Wettest Month (Jan) 4.41"

Driest Month (Jul) 0.12"

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

3,629 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	128 km	14 km
Aug 24, 2014	The 2014 South Napa, California Earthquake	M6.0	113 km	11 km
Jul 8, 2021	Antelope Valley, CA	M6.0	137 km	7 km
Sep 12, 1994	8 km ESE of Mesa Vista, California	M5.1	123 km	-1 km
Jul 8, 2021	32km SE of Markleeville, CA	M5.0	137 km	7 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	117 km	9 km
Dec 22, 1995	California-Nevada border region	M4.9	127 km	4 km
Oct 30, 1998	4 km N of Tahoe Vista, California	M4.8	125 km	1 km
Sep 4, 1995	13 km SW of Middletown, California	M4.8	147 km	7 km
Dec 28, 1995	9 km WNW of Topaz Lake, Nevada	M4.8	126 km	-1 km
Jun 26, 2005	8 km NNW of Tahoe Vista, California	M4.8	123 km	-2 km
Dec 23, 1995	8 km WNW of Topaz Lake, Nevada	M4.7	128 km	-1 km
Mar 9, 2007	13 km SE of Walker, California	M4.7	149 km	7 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	139 km	8 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	142 km	9 km
May 7, 2021	19km NW of Truckee, CA	M4.7	125 km	10 km
Jul 8, 2021	29km ENE of Dardanelle, CA	M4.6	133 km	2 km
Dec 12, 1996	4 km SSW of Topaz Lake, Nevada	M4.6	133 km	-2 km
Jul 9, 2021	30km SE of Markleeville, CA	M4.6	134 km	4 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	120 km	4 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Feb 7, 1978	EF2	40 km	1.9 mi	0
Apr 27, 1953	EF2	95 km	0.1 mi	0
Mar 11, 2023	EF1	79 km	0.8 mi	0
Jan 10, 2023	EF1	54 km	0.4 mi	0
Dec 24, 2015	EF1	23 km	6.2 mi	0
Oct 22, 2012	EF1	79 km	2.0 mi	0
Oct 22, 2012	EF1	61 km	4.0 mi	0
Oct 22, 2012	EF1	75 km	0.3 mi	0
Jan 23, 2010	EF1	89 km	1.6 mi	0
Apr 14, 2006	EF1	95 km	0.5 mi	0
Dec 12, 1996	EF1	84 km	0.6 mi	0
Dec 17, 1992	EF1	95 km	5.0 mi	0
Apr 19, 1988	EF1	37 km	0.2 mi	0
Apr 19, 1988	EF1	22 km	1.0 mi	0
Mar 22, 1983	EF1	34 km	2.0 mi	0
Mar 4, 1978	EF1	99 km	2.5 mi	0
Mar 1, 1978	EF1	93 km	1.5 mi	0
May 31, 1967	EF1	62 km	0.1 mi	0
Jan 14, 2023	EF0	21 km	0.3 mi	0
Nov 8, 2022	EF0	29 km	0.8 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	126 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Clear Lake (156 km).

Name	Type	Elevation	Last Eruption	Distance
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	156 km
Mono Lake Volcanic Field	Pyroclastic cone(s)	2,121 m (6,959 ft)	1790	187 km
Mono-Inyo Craters	Lava dome(s)	2,796 m (9,173 ft)	1380	195 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CALDOR (226,583 acres, 2021).

Year	Name	Acres Burned	Distance
2021	CALDOR	226,583	73 km
2014	KING	99,070	66 km
2018	COUNTY	92,450	96 km
2022	MOSQUITO	77,858	69 km
2015	BUTTE	72,894	50 km
1988	49R	36,673	83 km
1988	MILLER	35,750	89 km
2013	AMERICAN	27,938	82 km
1992	CLEVELAND	21,835	67 km
2008	AMERICAN RIVER COMPLEX (GOVERNMENT)	20,709	89 km
1992	GULCH	18,019	63 km
2004	POWER	17,266	69 km
2001	STAR	16,846	84 km
2017	CASCADE	16,155	99 km
2001	DARBY	14,734	75 km
2006	ZAM ASSIST	14,404	78 km
2018	WAVERLY	12,238	59 km
1996	SCOTT	8,828	8 km
2015	WRAGG	8,455	87 km
2004	FREDS	8,147	73 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (9°C)	4.4 in	Wettest
February	51°F (10°C)	3.8 in
March	54°F (12°C)	3.9 in
April	59°F (15°C)	1.8 in
May	66°F (19°C)	0.5 in
June	73°F (23°C)	0.2 in
July	78°F (26°C)	0.1 in	Warmest, Driest
August	77°F (25°C)	0.1 in
September	73°F (23°C)	0.5 in
October	65°F (18°C)	1.5 in
November	53°F (12°C)	3.7 in
December	46°F (8°C)	3.4 in	Coldest

Rancho Murieta has a seasonal temperature swing of 32°F / from 46°F in December to 78°F in July. Total annual precipitation is 24.0 inches, with January being the wettest month (4.4") and July the driest (0.1").

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