Willits, CA climate
Willits has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 88°, a January night drops to 36°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Willits feels like
Winter
Spring
Summer
Fall
Willits 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 | 54° | 36° | 9.4" | 0 | 13 | 0 | 42° – 50° |
| February | 57° | 37° | 8.2" | 0 | 12 | 0 | 42° – 53° |
| March | 60° | 39° | 7.0" | 0 | 10 | 0 | 44° – 55° |
| April | 64° | 40° | 3.5" | 0 | 8 | 0 | 47° – 56° |
| May | 72° | 45° | 1.9" | 0 | 5 | 0 | 53° – 64° |
| June | 79° | 50° | 0.6" | 0 | 2 | 0 | 60° – 70° |
| July | 88° | 55° | 0.0" | 0 | 0 | 0 | 67° – 74° |
| August | 87° | 54° | 0.1" | 0 | 0 | 0 | 68° – 75° |
| September | 84° | 50° | 0.3" | 0 | 1 | 0 | 64° – 70° |
| October | 74° | 44° | 2.5" | 0 | 4 | 0 | 56° – 66° |
| November | 60° | 39° | 5.4" | 0 | 10 | 0 | 43° – 53° |
| December | 53° | 35° | 10.2" | 0 | 14 | 0 | 41° – 48° |
| Year | 69° | 44° | 49.1" | 0.0" | 77 | 0 |
“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 Willits
Willits gets 49 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 77 days a year.
About 157 frost-free days a year
In half of years the last 32° night comes by May 5 and the first one by October 9. That leaves about 157 frost-free days for gardens, shorter than 74% of U.S. towns.
Heating and cooling a home in Willits
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Willits, 96% of that work is heating and 4% 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 Willits 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 Willits averaged 0.8° warmer than the 1900s. The biggest change is in January (+1.4°). The shift is smaller than in 86% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Willits’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 44° to 55°. September is the most reliable, staying within 6°.
Common questions about Willits’s climate
What is the coldest month in Willits?
December, with a typical high of 53° and a low of 35°.
What is the hottest month in Willits?
July, with a typical high of 88° and a low of 55°. About 27 days a year reach 90°.
How much snow does Willits get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Willits?
In half of years the first 32° night comes by October 9, and the last spring frost by May 5.
What is the rainiest month in Willits?
December, with 10.2 inches of rain and melted snow. The year totals 49 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Willits itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ukiah, CA (19 mi, snow) and Willits 1 Ne, CA (1 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.