Wilsonia, CA climate
Wilsonia has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 79°, a January night drops to 26°, and about 186 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Wilsonia feels like
Winter
Spring
Summer
Fall
Wilsonia 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 | 46° | 26° | 7.9" | 37.7" | 9 | 25 | 32° – 43° |
| February | 46° | 25° | 7.6" | 44.8" | 11 | 26 | 30° – 43° |
| March | 49° | 27° | 6.8" | 35.1" | 10 | 29 | 29° – 46° |
| April | 53° | 30° | 3.9" | 20.0" | 8 | 20 | 36° – 47° |
| May | 61° | 38° | 1.9" | 4.9" | 5 | 7 | 39° – 57° |
| June | 71° | 45° | 0.5" | 0.6" | 2 | 1 | 50° – 62° |
| July | 79° | 52° | 0.2" | 0 | 1 | 0 | 62° – 69° |
| August | 79° | 52° | 0.1" | 0 | 1 | 0 | 62° – 68° |
| September | 73° | 47° | 0.4" | 0 | 2 | 0 | 55° – 64° |
| October | 63° | 38° | 2.2" | 3.5" | 4 | 2 | 46° – 57° |
| November | 52° | 31° | 3.4" | 8.6" | 6 | 10 | 32° – 48° |
| December | 45° | 25° | 6.6" | 30.8" | 8 | 21 | 31° – 41° |
| Year | 60° | 36° | 41.5" | 186.0" | 64 | 140 |
“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 Wilsonia
Wilsonia gets 41 inches of rain and melted snow a year. January is the wettest month and August the driest. Rain or snow falls on about 64 days a year. Snow covers the ground about 140 days of the year.
About 132 frost-free days a year
In half of years the last 32° night comes by June 1 and the first one by October 7. That leaves about 132 frost-free days for gardens, shorter than 94% of U.S. towns.
Heating and cooling a home in Wilsonia
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Wilsonia, 97% of that work is heating and 3% 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 Wilsonia 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 Wilsonia averaged 1.6° warmer than the 1900s. The biggest change is in September (+2.4°). The shift is larger than in 75% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Wilsonia’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 39° to 57°. August is the most reliable, staying within 7°.
Common questions about Wilsonia’s climate
What is the coldest month in Wilsonia?
February, with a typical high of 46° and a low of 25°.
What is the hottest month in Wilsonia?
July, with a typical high of 79° and a low of 52°.
How much snow does Wilsonia get?
About 186 inches in a normal winter, most of it in February.
When is the first frost in Wilsonia?
In half of years the first 32° night comes by October 7, and the last spring frost by June 1.
What is the rainiest month in Wilsonia?
January, with 7.9 inches of rain and melted snow. The year totals 41 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Wilsonia itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Grant Grove, CA (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.