Stonyford, CA climate
Stonyford has mild winters and hot summers. A typical July afternoon reaches 96°, a January night drops to 34°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Stonyford feels like
Winter
Spring
Summer
Fall
Stonyford 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 | 57° | 34° | 5.4" | 0.3" | 9 | 0 | 42° – 52° |
| February | 59° | 36° | 5.1" | 0.2" | 9 | 0 | 42° – 54° |
| March | 64° | 38° | 3.4" | 0 | 6 | 0 | 43° – 58° |
| April | 69° | 42° | 1.4" | 0 | 5 | 0 | 49° – 60° |
| May | 79° | 48° | 1.0" | 0 | 3 | 0 | 55° – 70° |
| June | 88° | 54° | 0.4" | 0 | 2 | 0 | 65° – 77° |
| July | 96° | 60° | 0.0" | 0 | 0 | 0 | 74° – 81° |
| August | 94° | 58° | 0.1" | 0 | 0 | 0 | 73° – 81° |
| September | 89° | 53° | 0.1" | 0 | 0 | 0 | 67° – 74° |
| October | 78° | 45° | 1.0" | 0 | 3 | 0 | 58° – 68° |
| November | 64° | 38° | 2.4" | 0 | 6 | 0 | 43° – 56° |
| December | 56° | 34° | 4.6" | 0 | 8 | 0 | 40° – 49° |
| Year | 74° | 45° | 24.9" | 0.5" | 50 | 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 Stonyford
Stonyford gets 25 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 50 days a year.
About 219 frost-free days a year
In half of years the last 32° night comes by April 6 and the first one by November 10. That leaves about 219 frost-free days for gardens, longer than 82% of U.S. towns.
Heating and cooling a home in Stonyford
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Stonyford, 73% of that work is heating and 27% is cooling.
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 Stonyford 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 Stonyford averaged 1.2° warmer than the 1900s. The biggest change is in January (+2.7°). The shift is smaller than in 54% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Stonyford’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 55° to 70°. September is the most reliable, staying within 8°.
Common questions about Stonyford’s climate
What is the coldest month in Stonyford?
December, with a typical high of 56° and a low of 34°.
What is the hottest month in Stonyford?
July, with a typical high of 96° and a low of 60°. About 81 days a year reach 90°.
How much snow does Stonyford get?
Almost none. A normal year brings 0.5 inches.
When is the first frost in Stonyford?
In half of years the first 32° night comes by November 10, and the last spring frost by April 6.
What is the rainiest month in Stonyford?
January, with 5.4 inches of rain and melted snow. The year totals 25 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Stonyford itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Stonyford, CA (1 mi, snow) and East Park Rsvr, CA (2 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.