Mt. Bullion, CA climate
Mt. Bullion has mild winters and hot summers. A typical July afternoon reaches 93°, a January night drops to 36°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mt. Bullion feels like
Winter
Spring
Summer
Fall
Mt. Bullion weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 55° | 36° | 5.6" | 42° – 52° |
| February | 57° | 37° | 4.8" | 41° – 54° |
| March | 61° | 39° | 4.4" | 42° – 58° |
| April | 67° | 42° | 2.3" | 48° – 59° |
| May | 76° | 48° | 1.1" | 52° – 70° |
| June | 86° | 55° | 0.3" | 64° – 76° |
| July | 93° | 62° | 0.0" | 73° – 82° |
| August | 92° | 61° | 0.0" | 73° – 80° |
| September | 87° | 57° | 0.1" | 68° – 76° |
| October | 75° | 49° | 1.4" | 58° – 68° |
| November | 63° | 40° | 2.5" | 42° – 58° |
| December | 54° | 35° | 4.9" | 41° – 50° |
| Year | 72° | 47° | 27.5" |
“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 Mt. Bullion
Mt. Bullion gets 27 inches of rain and melted snow a year. January is the wettest month and July the driest.
How Mt. Bullion 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 Mt. Bullion averaged 1.3° warmer than the 1900s. The biggest change is in January (+2.3°). The shift is larger than in 54% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mt. Bullion’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 52° to 70°. August is the most reliable, staying within 8°.
Common questions about Mt. Bullion’s climate
What is the coldest month in Mt. Bullion?
December, with a typical high of 54° and a low of 35°.
What is the hottest month in Mt. Bullion?
July, with a typical high of 93° and a low of 62°.
What is the rainiest month in Mt. Bullion?
January, with 5.6 inches of rain and melted snow. The year totals 27 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mt. Bullion itself (about a 3-mile square). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.