Weather & Climate in Rosamond, CA

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

Rosamond enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 45°F in January while summers reach 82°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 6.8 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 2,406 feet.

Temperature

45°F Jan (7°C) 82°F Jul (28°C)

Annual Average	62.1°F
	15% above US avg
January Average	45°F (7°C)
July Average	82°F (28°C)
Sunny Days	330 days/yr

Geography

Elevation	2,406 ft (733 m)
Area	52.3 sq mi (135.6 km²)
Population Density	400/sq mi
Coordinates	34.8656°N, 118.2148°W
Timezone	America/Los_Angeles
County	Los Angeles County County
Nearest Airport	Bob Hope (BUR) 47 miles away

Precipitation & Snow

Annual Rainfall 6.8"

82% below US avg

Wettest Month (Jan) 1.57"

Driest Month (Jun) 0.04"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very High
Risk Score	100.0 / 100
Social Vulnerability	55.4 / 100
Community Resilience	13.6 / 100

Hazard Breakdown

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

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

Earthquake History

11,686 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.

Jul 6, 2019	Ridgecrest Earthquake Sequence	M7.1	115 km	8 km
Jan 17, 1994	Northridge, California, earthquake	M6.7	78 km	18 km
Jul 4, 2019	Ridgecrest Earthquake Sequence	M6.4	114 km	11 km
Jun 28, 1992	The 1992 Big Bear, California Earthquake	M6.3	147 km	4 km
Jan 17, 1994	1km ENE of Granada Hills, California	M5.9	70 km	5 km
Jun 28, 1991	The 1991 Sierra Madre, California Earthquake	M5.8	69 km	8 km
Sep 20, 1995	16km NNE of Ridgecrest, California	M5.8	113 km	5 km
Jul 11, 1992	12km NW of California City, California	M5.7	41 km	10 km
Oct 16, 1999	7km ENE of Running Springs, CA	M5.6	128 km	6 km
Jan 17, 1994	7km NNE of Simi Valley, California	M5.6	75 km	9 km
Jun 28, 1992	11km SSE of Big Bear Lake, California	M5.5	147 km	10 km
Jun 4, 2020	17km S of Searles Valley, CA	M5.5	110 km	8 km
Feb 28, 1990	The 1990 Upland, California Earthquake	M5.5	93 km	3 km
Jul 6, 2019	15km ESE of Little Lake, CA	M5.5	123 km	5 km
Jul 6, 2019	20km E of Little Lake, CA	M5.4	126 km	7 km
Jul 5, 2019	16km W of Searles Valley, CA	M5.4	115 km	7 km
Aug 17, 1995	17km N of Ridgecrest, California	M5.4	113 km	5 km
Nov 27, 1996	27km E of Coso Junction, California	M5.3	144 km	0 km
Nov 27, 1992	10km NNW of Big Bear City, California	M5.3	134 km	0 km
Jun 28, 1992	1km N of Big Bear Lake, California	M5.3	137 km	7 km

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

Tornado History

52 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 32 injuries.

Date	Rating	Distance	Path	Fatalities
Mar 1, 1983	EF2	100 km	3.5 mi	0
Nov 9, 1982	EF2	79 km	1.0 mi	0
Jun 25, 1954	EF2	96 km	0.1 mi	0
Mar 22, 2023	EF1	97 km	0.5 mi	0
May 18, 1997	EF1	99 km	9.0 mi	0
May 18, 1997	EF1	94 km	3.5 mi	0
Mar 20, 1992	EF1	85 km	0.2 mi	0
Mar 29, 1982	EF1	88 km	2.0 mi	0
Jan 31, 1979	EF1	79 km	0.1 mi	0
Sep 4, 1976	EF1	63 km	0.1 mi	0
Nov 25, 1965	EF1	92 km	2.0 mi	0
Jan 18, 1955	EF1	91 km	3.0 mi	0
Sep 9, 2021	EF0	57 km	1.8 mi	0
Jun 2, 2019	EF0	71 km	0.2 mi	0
Apr 16, 2019	EF0	98 km	1.6 mi	0
May 7, 2017	EF0	82 km	0.0 mi	0
Dec 12, 2014	EF0	99 km	0.7 mi	0
Aug 18, 2013	EF0	82 km	1.0 mi	0
Sep 1, 2007	EF0	3 km	13.1 mi	0
Sep 1, 2007	EF0	26 km	0.1 mi	0

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

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 3.1 m (10 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1930	S. CALIFORNIA	Eruption + Earthquake	3.1 m	1	101 km
1994	WEST COAST, USA	Earthquake	0.1 m	57	78 km
1855	S. CALIFORNIA	Eruption + Earthquake	—	—	86 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Golden Trout Creek (166 km).

Name	Type	Elevation	Last Eruption	Distance
Golden Trout Creek	Volcanic field	2,886 m (9,469 ft)	-5550	166 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STATION (165,368 acres, 2009).

Year	Name	Acres Burned	Distance
2009	STATION	165,368	60 km
2006	DAY	159,713	75 km
2020	BOBCAT	115,728	65 km
2003	SIMI	107,756	79 km
2018	WOOLSEY	97,962	100 km
2003	PIRU	63,920	73 km
2016	ERSKINE	48,066	79 km
1985	FERNDALE	46,724	99 km
2016	SAND	41,561	54 km
2007	BUCKWEED	41,332	44 km
2002	WILLIAMS	37,505	85 km
2007	RANCH	37,009	61 km
2016	BLUE CUT	36,856	89 km
2008	PIUTE	36,251	71 km
2013	POWERHOUSE	32,329	31 km
2020	LAKE	30,971	37 km
2021	FRENCH	27,331	98 km
2011	BRECKENRIDGE COMPLEX	27,229	73 km
2011	COMANCHE	25,965	57 km
2005	TOPANGA	24,133	84 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	45°F (7°C)	1.6 in	Wettest
February	49°F (9°C)	1.6 in
March	53°F (11°C)	1.3 in
April	58°F (15°C)	0.4 in
May	67°F (19°C)	0.2 in
June	75°F (24°C)	0.0 in	Driest
July	82°F (28°C)	0.1 in	Warmest
August	81°F (27°C)	0.2 in
September	74°F (24°C)	0.2 in
October	64°F (18°C)	0.3 in
November	53°F (11°C)	1.1 in
December	45°F (7°C)	1.1 in	Coldest

Rosamond has a seasonal temperature swing of 38°F / from 45°F in December to 82°F in July. Total annual precipitation is 8.1 inches, with January being the wettest month (1.6") and June the driest (0.0").

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