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Weather & Climate in Hayfork, CA

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

Hayfork enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 42°F in January while summers reach 75°F in July. The area gets 275 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 35.8 inches. The area receives 2.7 inches of snow annually. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 2,935 feet.

Temperature

42°F Jan (6°C) 75°F Jul (24°C)
Annual Average56.8°F
5% above US avg
January Average42°F (6°C)
July Average75°F (24°C)
Sunny Days275 days/yr

Geography

Elevation2,935 ft (895 m)
Area72.2 sq mi (186.9 km²)
Population Density44/sq mi
Coordinates40.5759°N, 123.1236°W
TimezoneAmerica/Los_Angeles
CountyTrinity County County
Nearest AirportRedding Regional (RDD)
44 miles away

Precipitation & Snow

Annual Rainfall 35.8"
6% below US avg
Snowfall 2.7"
Wettest Month (Dec) 7.48"
Driest Month (Jul) 0.20"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score79.5 / 100
Social Vulnerability82.6 / 100
Community Resilience37.0 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Low
Wildfire Relatively High
Flood Relatively Moderate
Hail Very Low
Strong Wind Very Low
Heat Wave Relatively Low
Winter Weather Very Low
Lightning Very Low
Drought No Rating
Cold Wave No Rating
Landslide Relatively High
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4,534 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.

Apr 25, 1992 The 1992 Petrolia, California Earthquake M7.2 97 km 10 km
Apr 26, 1992 32 km SW of Ferndale, California M6.6 123 km 22 km
Jan 10, 2010 The 2010 Eureka, California Earthquake M6.5 133 km 29 km
Apr 26, 1992 30 km WSW of Ferndale, California M6.5 123 km 19 km
Aug 17, 1991 30 km SSW of Scotia, California M6.0 105 km 8 km
Jan 28, 2015 40 km SW of Ferndale, California M5.7 129 km 17 km
Feb 13, 2012 26 km NNW of Willow Creek, California M5.6 84 km 27 km
Jan 22, 1997 33 km SW of Scotia, California M5.6 112 km 23 km
Jun 23, 2019 6km SSW of Petrolia, CA M5.6 105 km 9 km
Feb 26, 2007 52km W of Ferndale, CA M5.4 148 km 5 km
Dec 26, 1994 7 km WNW of Fields Landing, California M5.4 101 km 23 km
Jan 16, 1990 30 km NW of Shelter Cove, California M5.4 106 km 4 km
Apr 30, 2008 3 km NNW of Burnt Ranch, California M5.4 43 km 28 km
Feb 26, 2007 51 km W of Ferndale, California M5.4 147 km -1 km
Jan 1, 2023 15km SE of Rio Dell, CA M5.4 74 km 31 km
Mar 8, 1992 27 km NW of Shelter Cove, California M5.3 104 km 9 km
Mar 18, 2020 15km W of Petrolia, CA M5.2 116 km 29 km
Jan 26, 1997 33 km SW of Scotia, California M5.2 113 km 22 km
Jun 17, 2002 29 km WNW of Fields Landing, California M5.2 123 km 17 km
Jul 18, 2021 12km W of Petrolia, CA M5.1 114 km 31 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

8 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.

Date Rating Distance Path Fatalities
May 9, 1980 EF2 91 km 0.1 mi 0
Mar 29, 1958 EF2 92 km 2.0 mi 0
Mar 5, 1978 EF1 87 km 0.1 mi 0
Jan 4, 2021 EF0 96 km 0.8 mi 0
Jan 25, 2018 EF0 91 km 0.0 mi 0
Apr 4, 2013 EF0 90 km 0.8 mi 0
Mar 14, 1987 EF0 95 km 0.2 mi 0
Mar 5, 1978 EF0 85 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 1.8 m (6 ft).

Year Location Cause Max Wave Deaths Distance
1992 CAPE MENDOCINO, N. CALIFORNIA Earthquake 1.8 m — 104 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Shasta (121 km).

Name Type Elevation Last Eruption Distance
Shasta Stratovolcano 4,317 m (14,163 ft) 1250 121 km
Lassen Volcanic Center Stratovolcano 3,187 m (10,456 ft) 1917 137 km
Medicine Lake Shield 2,412 m (7,913 ft) 1060 175 km
Clear Lake Volcanic field 1,439 m (4,721 ft) Unknown 181 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: AUGUST COMPLEX (1,068,802 acres, 2020).

Year Name Acres Burned Distance
2020 AUGUST COMPLEX 1,068,802 71 km
2018 CARR 233,710 47 km
2021 MONUMENT 226,125 20 km
2021 HAYPRESS 204,549 62 km
2020 RED SALMON COMPLEX 147,535 65 km
1999 MEGRAM- ORLEANS 125,337 57 km
2021 MCFARLAND 121,554 37 km
2006 PIGEON 100,962 42 km
2008 YOLLA BOLLY COMPLEX (IRON) 94,888 55 km
2015 RIVER COMPLEX 78,531 43 km
2018 DELTA 63,732 74 km
2017 ISLAND 62,931 94 km
2020 ZOGG 56,941 46 km
1987 YELLOW 2 53,626 94 km
2018 HIRZ 46,700 84 km
2012 NORTH PASS 43,689 76 km
2008 BEAR WALLOW COMPLEX (UKONOM) 40,029 87 km
2008 SHU LIGHTNING COMPLEX (MOON) 36,514 39 km
2015 ROUTE COMPLEX 35,444 35 km
2014 WHITES 34,506 83 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (6°C) 7.4 in
February 40°F (5°C) 6.3 in
March 42°F (6°C) 5.9 in
April 46°F (8°C) 2.7 in
May 53°F (12°C) 1.3 in
June 60°F (16°C) 0.6 in
July 75°F (24°C) 0.2 in Warmest, Driest
August 67°F (19°C) 0.6 in
September 62°F (17°C) 1.1 in
October 53°F (12°C) 3.0 in
November 43°F (6°C) 7.0 in
December 38°F (3°C) 7.5 in Coldest, Wettest

Hayfork has a seasonal temperature swing of 37°F / from 38°F in December to 75°F in July. Total annual precipitation is 43.6 inches, with December being the wettest month (7.5") and July the driest (0.2").

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