Round Mountain, CA climate
Round Mountain has mild winters and hot summers, with plenty of rain. A typical July afternoon reaches 93°, a January night drops to 33°, and about 21 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Round Mountain feels like
Winter
Spring
Summer
Fall
Round Mountain 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 | 52° | 33° | 10.6" | 7.0" | 13 | 3 | 37° – 49° |
| February | 55° | 35° | 9.2" | 4.1" | 12 | 2 | 38° – 52° |
| March | 60° | 37° | 8.9" | 6.8" | 13 | 4 | 40° – 56° |
| April | 66° | 41° | 5.3" | 0.3" | 11 | 0 | 47° – 58° |
| May | 76° | 47° | 3.6" | 0 | 9 | 0 | 52° – 69° |
| June | 85° | 54° | 1.3" | 0 | 4 | 0 | 64° – 76° |
| July | 93° | 59° | 0.1" | 0 | 1 | 0 | 71° – 80° |
| August | 92° | 57° | 0.2" | 0 | 1 | 0 | 71° – 80° |
| September | 87° | 52° | 0.5" | 0 | 3 | 0 | 66° – 74° |
| October | 74° | 44° | 3.4" | 0 | 6 | 0 | 55° – 65° |
| November | 59° | 37° | 6.4" | 0.8" | 10 | 0 | 39° – 53° |
| December | 50° | 32° | 11.6" | 1.9" | 13 | 1 | 38° – 45° |
| Year | 71° | 44° | 61.0" | 20.9" | 95 | 9 |
“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 Round Mountain
Round Mountain gets 61 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 95 days a year. Snow covers the ground about 9 days of the year.
How Round Mountain 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 Round Mountain averaged 1.1° warmer than the 1900s. The biggest change is in September (+2.2°). The shift is smaller than in 60% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Round Mountain’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 69°. December is the most reliable, staying within 8°.
Common questions about Round Mountain’s climate
What is the coldest month in Round Mountain?
December, with a typical high of 50° and a low of 32°.
What is the hottest month in Round Mountain?
July, with a typical high of 93° and a low of 59°.
How much snow does Round Mountain get?
About 21 inches in a normal winter, most of it in January.
What is the rainiest month in Round Mountain?
December, with 11.6 inches of rain and melted snow. The year totals 61 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Round Mountain itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Buckhorn, CA (7 mi, snow). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.