Crested Butte, CO climate
Crested Butte has cold, snowy winters and cool summers. A typical July afternoon reaches 75°, a January night drops to 4°, and about 389 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Crested Butte feels like
Winter
Spring
Summer
Fall
Crested Butte 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 | 29° | 4° | 2.7" | 61.1" | 15 | 31 | 10° – 22° |
| February | 33° | 7° | 2.5" | 62.6" | 16 | 29 | 14° – 26° |
| March | 41° | 14° | 2.2" | 49.3" | 14 | 31 | 22° – 33° |
| April | 48° | 22° | 2.1" | 46.7" | 15 | 30 | 30° – 41° |
| May | 58° | 31° | 1.6" | 31.1" | 12 | 18 | 39° – 49° |
| June | 70° | 38° | 0.9" | 2.5" | 6 | 1 | 49° – 58° |
| July | 75° | 44° | 1.9" | 0 | 14 | 0 | 55° – 63° |
| August | 72° | 42° | 1.9" | 0 | 14 | 0 | 55° – 61° |
| September | 66° | 35° | 1.9" | 3.2" | 10 | 1 | 45° – 55° |
| October | 54° | 26° | 1.8" | 25.7" | 11 | 10 | 35° – 45° |
| November | 40° | 15° | 2.1" | 41.1" | 11 | 26 | 20° – 35° |
| December | 29° | 5° | 2.4" | 65.7" | 16 | 31 | 13° – 24° |
| Year | 51° | 24° | 23.9" | 389.0" | 154 | 208 |
“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 Crested Butte
Crested Butte gets 24 inches of rain and melted snow a year. January is the wettest month and June the driest. Rain or snow falls on about 154 days a year. Snow covers the ground about 208 days of the year.
About 113 frost-free days a year
In half of years the last 32° night comes by June 2 and the first one by September 23. That leaves about 113 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in Crested Butte
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Crested Butte, 100% of that work is heating and 0% 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 Crested Butte 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 Crested Butte averaged 1.6° warmer than the 1900s. The biggest change is in March (+3.0°). The shift is larger than in 76% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Crested Butte’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 20° to 35°. August is the most reliable, staying within 6°.
Common questions about Crested Butte’s climate
What is the coldest month in Crested Butte?
January, with a typical high of 29° and a low of 4°.
What is the hottest month in Crested Butte?
July, with a typical high of 75° and a low of 44°.
How much snow does Crested Butte get?
About 389 inches in a normal winter, most of it in December.
When is the first frost in Crested Butte?
In half of years the first 32° night comes by September 23, and the last spring frost by June 2.
What is the rainiest month in Crested Butte?
January, with 2.7 inches of rain and melted snow. The year totals 24 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Crested Butte itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Crested Butte 6.2 N, CO (6 mi, snow) and Aspen 1sw, CO (23 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.