Weather & Climate in Monmouth, CA

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

Monmouth enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 50°F in January while summers reach 85°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 11.8 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 278 feet.

Temperature

50°F Jan (10°C) 85°F Jul (29°C)

Annual Average	66.7°F
	24% above US avg
January Average	50°F (10°C)
July Average	85°F (29°C)
Sunny Days	330 days/yr

Geography

Elevation	278 ft (85 m)
Area	0.3 sq mi (0.8 km²)
Population Density	542/sq mi
Coordinates	36.5656°N, 119.7405°W
Timezone	America/Los_Angeles
County	Fresno County County
Nearest Airport	Fresno Yosemite International (FAT) 15 miles away

Precipitation & Snow

Annual Rainfall 11.8"

69% below US avg

Wettest Month (Mar) 1.89"

Driest Month (Jun) 0.12"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	99.3 / 100
Social Vulnerability	60.3 / 100
Community Resilience	16.6 / 100

Hazard Breakdown

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

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

Earthquake History

6,032 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Sep 28, 2004	2004 Parkfield, California Earthquake	M6.0	100 km	8 km
May 15, 1999	9 km WSW of Aspen Springs, California	M5.5	135 km	3 km
Oct 21, 2012	24 km NE of San Lucas, California	M5.3	104 km	9 km
Sep 29, 2004	8 km NW of Parkfield, California	M5.0	96 km	11 km
Jun 9, 1998	8 km WNW of Aspen Springs, California	M4.9	141 km	5 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	131 km	7 km
Jul 15, 1998	8 km W of Aspen Springs, California	M4.9	139 km	4 km
Dec 20, 1994	3 km NW of Parkfield, California	M4.9	97 km	8 km
Sep 30, 2004	13 km NW of Parkfield, California	M4.9	96 km	10 km
Nov 30, 1997	2 km ESE of Mammoth Lakes, California	M4.9	138 km	5 km
Feb 24, 2016	6km SSW of Wasco, CA	M4.9	119 km	22 km
Nov 22, 1997	3 km ESE of Mammoth Lakes, California	M4.9	139 km	5 km
Nov 14, 1993	8 km NW of Parkfield, California	M4.8	96 km	11 km
Dec 31, 1997	9 km ESE of Mammoth Lakes, California	M4.8	142 km	4 km
Feb 16, 2016	8 km S of Wilkerson, California	M4.8	138 km	15 km
Sep 28, 2004	12 km SE of Parkfield, California	M4.7	101 km	6 km
May 15, 1999	11 km WSW of Aspen Springs, California	M4.7	133 km	5 km
Aug 27, 2011	21 km NE of Soledad, California	M4.6	129 km	8 km
Jun 12, 2007	14km SE of Mammoth Lakes, CA	M4.6	133 km	8 km
Nov 22, 1997	California-Nevada border region	M4.5	140 km	6 km

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

Tornado History

69 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 5 injuries.

Date	Rating	Distance	Path	Fatalities
Sep 5, 2020	EF2	94 km	12.0 mi	0
Apr 5, 1980	EF2	22 km	15.0 mi	0
Mar 22, 1962	EF2	27 km	0.5 mi	0
Sep 5, 2020	EF1	90 km	1.1 mi	0
Jan 17, 2019	EF1	35 km	0.3 mi	0
May 20, 2002	EF1	53 km	2.7 mi	0
Feb 14, 1998	EF1	74 km	3.0 mi	0
Nov 22, 1996	EF1	31 km	0.8 mi	0
Jan 14, 1995	EF1	78 km	1.0 mi	0
Feb 28, 1991	EF1	35 km	0.2 mi	0
Mar 8, 1986	EF1	8 km	4.0 mi	0
Mar 28, 1982	EF1	11 km	5.0 mi	0
Feb 19, 1980	EF1	23 km	1.7 mi	0
Mar 14, 1979	EF1	7 km	2.0 mi	0
Apr 22, 1967	EF1	84 km	0.1 mi	0
Apr 21, 1967	EF1	54 km	0.1 mi	0
Nov 1, 1964	EF1	79 km	1.0 mi	0
May 19, 1957	EF1	17 km	0.1 mi	0
Mar 1, 2024	EF0	58 km	0.4 mi	0
May 19, 2019	EF0	46 km	0.4 mi	0

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

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1901	MONTEREY BAY, N. CALIFORNIA	Eruption + Earthquake	—	—	93 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Golden Trout Creek (129 km).

Name	Type	Elevation	Last Eruption	Distance
Golden Trout Creek	Volcanic field	2,886 m (9,469 ft)	-5550	129 km
Mammoth Mountain	Lava dome(s)	3,369 m (11,053 ft)	1260	134 km
Mono-Inyo Craters	Lava dome(s)	2,796 m (9,173 ft)	1380	151 km
Mono Lake Volcanic Field	Pyroclastic cone(s)	2,121 m (6,959 ft)	1790	171 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CREEK (381,441 acres, 2020).

Year	Name	Acres Burned	Distance
2020	CREEK	381,441	96 km
2015	ROUGH	146,369	83 km
2021	KNP COMPLEX	89,960	84 km
2017	GARZA	48,404	84 km
2020	MINERAL	29,901	85 km
2013	ASPEN	23,564	91 km
1993	ORCHARD	22,309	97 km
1996	SKYLINE	21,694	68 km
1985	LOSGATOSIV	20,357	78 km
2024	BOONE	17,701	87 km
1996	PANOCHE II	14,760	79 km
2014	FRENCH	14,534	88 km
2017	RAILROAD	12,765	98 km
2008	TEHIPITE	12,205	93 km
1989	POWERHOUSE	11,532	66 km
1986	DEER	10,963	79 km
2017	ELM 2	10,765	81 km
2021	RIVER	10,183	86 km
2010	SHEEP COMPLEX	9,614	94 km
2006	THREE ROCKS	9,336	69 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	50°F (10°C)	1.9 in
February	51°F (11°C)	1.8 in
March	56°F (13°C)	1.9 in	Wettest
April	61°F (16°C)	0.8 in
May	68°F (20°C)	0.3 in
June	75°F (24°C)	0.1 in
July	85°F (29°C)	0.0 in	Warmest, Driest
August	79°F (26°C)	0.0 in
September	74°F (23°C)	0.2 in
October	64°F (18°C)	0.5 in
November	52°F (11°C)	1.1 in
December	44°F (7°C)	1.2 in	Coldest

Monmouth has a seasonal temperature swing of 40°F / from 44°F in December to 85°F in July. Total annual precipitation is 9.7 inches, with March being the wettest month (1.9") and July the driest (0.0").

View full profile of Monmouth, CA →