Hayfork, CA climate
Hayfork has mild winters and hot summers. A typical July afternoon reaches 93°, a January night drops to 32°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Hayfork feels like
Winter
Spring
Summer
Fall
Hayfork weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 49° | 32° | 7.9" | 2.2" | 16 | 2 | 36° – 46° |
| February | 54° | 33° | 6.5" | 1.3" | 14 | 1 | 38° – 50° |
| March | 59° | 35° | 5.5" | 0.2" | 14 | 0 | 40° – 54° |
| April | 65° | 38° | 3.1" | 0.2" | 11 | 0 | 46° – 56° |
| May | 75° | 43° | 1.7" | 0 | 7 | 0 | 51° – 66° |
| June | 84° | 49° | 0.7" | 0 | 4 | 0 | 61° – 73° |
| July | 93° | 55° | 0.2" | 0 | 1 | 0 | 68° – 78° |
| August | 93° | 53° | 0.2" | 0 | 1 | 0 | 70° – 77° |
| September | 87° | 48° | 0.4" | 0 | 2 | 0 | 64° – 72° |
| October | 73° | 41° | 2.2" | 0 | 6 | 0 | 53° – 62° |
| November | 56° | 36° | 4.7" | 0.8" | 13 | 1 | 38° – 52° |
| December | 47° | 32° | 8.2" | 4.0" | 17 | 3 | 37° – 44° |
| Year | 69° | 41° | 41.1" | 8.7" | 105 | 6 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Hayfork
Hayfork gets 41 inches of rain and melted snow a year. December is the wettest month and August the driest. Rain or snow falls on about 105 days a year. Snow covers the ground about 6 days of the year.
About 159 frost-free days a year
In half of years the last 32° night comes by May 3 and the first one by October 11. That leaves about 159 frost-free days for gardens, shorter than 72% of U.S. towns.
Heating and cooling a home in Hayfork
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hayfork, 85% of that work is heating and 15% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Hayfork compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Hayfork averaged 1.4° warmer than the 1900s. The biggest change is in January (+2.1°). The shift is larger than in 63% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Hayfork’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. May swings the most: between 1991 and 2020 its average temperature ranged from 51° to 66°. August is the most reliable, staying within 7°.
Common questions about Hayfork’s climate
What is the coldest month in Hayfork?
December, with a typical high of 47° and a low of 32°.
What is the hottest month in Hayfork?
July, with a typical high of 93° and a low of 55°. About 85 days a year reach 90°.
How much snow does Hayfork get?
About 9 inches in a normal winter, most of it in December.
When is the first frost in Hayfork?
In half of years the first 32° night comes by October 11, and the last spring frost by May 3.
What is the rainiest month in Hayfork?
December, with 8.2 inches of rain and melted snow. The year totals 41 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hayfork itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Weaverville, CA (15 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.