Weather & Climate in Riverdale, CA

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

Riverdale enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 47°F in January while summers reach 80°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 7.2 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 213 feet.

Temperature

47°F Jan (8°C) 80°F Jul (27°C)

Annual Average	63.0°F
	17% above US avg
January Average	47°F (8°C)
July Average	80°F (27°C)
Sunny Days	330 days/yr

Geography

Elevation	213 ft (65 m)
Area	3.9 sq mi (10.2 km²)
Population Density	713/sq mi
Coordinates	36.4304°N, 119.8672°W
Timezone	America/Los_Angeles
County	Kings County County
Nearest Airport	Fresno Yosemite International (FAT) 25 miles away

Precipitation & Snow

Annual Rainfall 7.2"

81% below US avg

Wettest Month (Jan) 1.46"

Driest Month (Jun) 0.08"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	92.4 / 100
Social Vulnerability	65.7 / 100
Community Resilience	7.7 / 100

Hazard Breakdown

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

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

Earthquake History

4,324 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Sep 28, 2004	2004 Parkfield, California Earthquake	M6.0	82 km	8 km
Oct 21, 2012	24 km NE of San Lucas, California	M5.3	90 km	9 km
Sep 17, 1991	22 km NW of San Simeon, California	M5.2	149 km	9 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	147 km	9 km
Sep 29, 2004	8 km NW of Parkfield, California	M5.0	78 km	11 km
Dec 20, 1994	3 km NW of Parkfield, California	M4.9	78 km	8 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	121 km	7 km
Sep 30, 2004	13 km NW of Parkfield, California	M4.9	78 km	10 km
Feb 24, 2016	6km SSW of Wasco, CA	M4.9	108 km	22 km
Nov 14, 1993	8 km NW of Parkfield, California	M4.8	78 km	11 km
Sep 28, 2004	12 km SE of Parkfield, California	M4.7	82 km	6 km
Aug 27, 2011	21 km NE of Soledad, California	M4.6	119 km	8 km
Mar 17, 2004	9 km WSW of Oak Shores, California	M4.5	134 km	4 km
May 16, 2005	5 km NW of Parkfield, California	M4.5	78 km	9 km
Aug 6, 2012	8 km NW of Parkfield, California	M4.5	78 km	11 km
Jan 20, 2015	27 km ENE of Greenfield, California	M4.4	99 km	9 km
Apr 4, 2023	1km NNW of Tres Pinos, CA	M4.4	136 km	10 km
Sep 11, 1990	14 km S of Tres Pinos, California	M4.4	130 km	8 km
Jun 20, 2009	11 km SW of Lake Nacimiento, California	M4.4	131 km	6 km
Sep 16, 1992	2 km ESE of Kettleman City, California	M4.4	49 km	10 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Apr 5, 1980	EF2	16 km	15.0 mi	0
Mar 22, 1962	EF2	42 km	0.5 mi	0
Jan 17, 2019	EF1	53 km	0.3 mi	0
May 20, 2002	EF1	60 km	2.7 mi	0
Feb 14, 1998	EF1	73 km	3.0 mi	0
Nov 22, 1996	EF1	13 km	0.8 mi	0
Jan 14, 1995	EF1	85 km	1.0 mi	0
Feb 28, 1991	EF1	38 km	0.2 mi	0
Mar 8, 1986	EF1	24 km	4.0 mi	0
Mar 28, 1982	EF1	27 km	5.0 mi	0
Feb 19, 1980	EF1	40 km	1.7 mi	0
Mar 14, 1979	EF1	26 km	2.0 mi	0
Apr 22, 1967	EF1	78 km	0.1 mi	0
Apr 21, 1967	EF1	63 km	0.1 mi	0
Nov 1, 1964	EF1	69 km	1.0 mi	0
May 19, 1957	EF1	30 km	0.1 mi	0
Mar 1, 2024	EF0	68 km	0.4 mi	0
May 19, 2019	EF0	28 km	0.4 mi	0
Mar 2, 2019	EF0	59 km	0.2 mi	0
Feb 15, 2019	EF0	81 km	0.6 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	—	—	74 km

Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Golden Trout Creek (139 km).

Name	Type	Elevation	Last Eruption	Distance
Golden Trout Creek	Volcanic field	2,886 m (9,469 ft)	-5550	139 km
Mammoth Mountain	Lava dome(s)	3,369 m (11,053 ft)	1260	153 km
Mono-Inyo Craters	Lava dome(s)	2,796 m (9,173 ft)	1380	170 km
Mono Lake Volcanic Field	Pyroclastic cone(s)	2,121 m (6,959 ft)	1790	190 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ROUGH (146,369 acres, 2015).

Year	Name	Acres Burned	Distance
2015	ROUGH	146,369	100 km
2021	KNP COMPLEX	89,960	97 km
2017	GARZA	48,404	65 km
2020	MINERAL	29,901	68 km
1993	ORCHARD	22,309	79 km
1996	SKYLINE	21,694	50 km
1985	LOSGATOSIV	20,357	64 km
2024	BOONE	17,701	70 km
1996	MERCY	16,993	98 km
1996	PANOCHE II	14,760	70 km
2006	RICO	11,807	85 km
1989	POWERHOUSE	11,532	84 km
1986	DEER	10,963	96 km
2017	ELM 2	10,765	62 km
2006	THREE ROCKS	9,336	58 km
1989	UNNAMED	8,742	87 km
1985	PONOCHE 2	7,508	87 km
2016	MINERAL	6,852	67 km
1984	FLAT TOP	6,661	64 km
2023	ALMOND	5,913	97 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	47°F (8°C)	1.5 in	Wettest
February	51°F (11°C)	1.4 in
March	55°F (13°C)	1.3 in
April	60°F (16°C)	0.5 in
May	68°F (20°C)	0.2 in
June	75°F (24°C)	0.1 in
July	80°F (27°C)	0.0 in	Warmest, Driest
August	78°F (26°C)	0.0 in
September	73°F (23°C)	0.2 in
October	65°F (18°C)	0.4 in
November	53°F (12°C)	0.8 in
December	45°F (7°C)	0.9 in	Coldest

Riverdale has a seasonal temperature swing of 35°F / from 45°F in December to 80°F in July. Total annual precipitation is 7.4 inches, with January being the wettest month (1.5") and July the driest (0.0").

View full profile of Riverdale, CA →