Mountain, CO climate
Mountain has cold, snowy winters and cool summers, with very little rain. A typical July afternoon reaches 75°, a January night drops to 8°, and about 76 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mountain feels like
Winter
Spring
Summer
Fall
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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 37° | 8° | 1.6" | 13.1" | 8 | 15° – 27° |
| February | 39° | 11° | 1.7" | 12.5" | 8 | 20° – 31° |
| March | 45° | 18° | 1.8" | 13.2" | 9 | 27° – 36° |
| April | 51° | 25° | 1.7" | 9.3" | 9 | 34° – 44° |
| May | 60° | 32° | 1.7" | 1.3" | 7 | 41° – 49° |
| June | 71° | 39° | 0.9" | 0.1" | 5 | 51° – 59° |
| July | 75° | 45° | 2.4" | 0 | 10 | 57° – 64° |
| August | 72° | 44° | 2.5" | 0 | 14 | 56° – 61° |
| September | 67° | 37° | 2.5" | 0.3" | 10 | 47° – 56° |
| October | 56° | 28° | 1.8" | 2.6" | 7 | 37° – 46° |
| November | 45° | 18° | 1.6" | 10.2" | 6 | 24° – 38° |
| December | 36° | 9° | 1.6" | 13.6" | 8 | 17° – 28° |
| Year | 54° | 26° | 21.6" | 76.2" | 99 |
“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 Mountain
Mountain gets 22 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 99 days a year.
How 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 Mountain averaged 2.3° warmer than the 1900s. The biggest change is in March (+3.5°). The shift is larger than in 98% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mountain’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 24° to 38°. August is the most reliable, staying within 6°.
Common questions about Mountain’s climate
What is the coldest month in Mountain?
January, with a typical high of 37° and a low of 8°.
What is the hottest month in Mountain?
July, with a typical high of 75° and a low of 45°.
How much snow does Mountain get?
About 76 inches in a normal winter, most of it in December.
What is the rainiest month in Mountain?
August, with 2.5 inches of rain and melted snow. The year totals 22 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mountain itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Placerville 3se, CO (10 mi, snow). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.