Monument, CO climate
Monument has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 14°, and about 121 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Monument feels like
Winter
Spring
Summer
Fall
Monument 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 | 44° | 14° | 0.8" | 14.4" | 7 | 22° – 35° |
| February | 45° | 15° | 0.9" | 10.9" | 6 | 24° – 37° |
| March | 52° | 22° | 1.9" | 24.2" | 9 | 32° – 43° |
| April | 57° | 28° | 2.7" | 23.7" | 9 | 37° – 48° |
| May | 66° | 37° | 2.6" | 3.3" | 9 | 45° – 56° |
| June | 78° | 46° | 2.1" | 0 | 11 | 57° – 67° |
| July | 83° | 52° | 3.0" | 0 | 12 | 64° – 71° |
| August | 80° | 50° | 2.7" | 0 | 14 | 61° – 69° |
| September | 74° | 42° | 1.7" | 1.7" | 7 | 52° – 63° |
| October | 62° | 31° | 1.3" | 11.1" | 5 | 40° – 52° |
| November | 51° | 21° | 1.1" | 18.4" | 8 | 28° – 43° |
| December | 44° | 13° | 0.9" | 13.4" | 7 | 22° – 32° |
| Year | 61° | 31° | 21.6" | 121.1" | 106 |
“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 Monument
Monument gets 22 inches of rain and melted snow a year. July is the wettest month and January the driest. Rain or snow falls on about 106 days a year.
About 136 frost-free days a year
In half of years the last 32° night comes by May 17 and the first one by October 1. That leaves about 136 frost-free days for gardens, shorter than 92% of U.S. towns.
Heating and cooling a home in Monument
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Monument, 96% of that work is heating and 4% 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.
Monument and its neighbors
Monument borders 3 towns with climate data. January nights across them vary by 0.7°. Palmer Lake has the coldest January nights (14°) and Gleneagle the hottest July afternoons (84°). Monument’s January low is 14° and its July high 83°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Monument 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 Monument averaged 1.1° warmer than the 1900s. The biggest change is in March (+3.0°). The shift is smaller than in 60% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Monument’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 28° to 43°. July is the most reliable, staying within 7°.
Common questions about Monument’s climate
What is the coldest month in Monument?
December, with a typical high of 44° and a low of 13°.
What is the hottest month in Monument?
July, with a typical high of 83° and a low of 52°. About 15 days a year reach 90°.
How much snow does Monument get?
About 121 inches in a normal winter, most of it in March.
When is the first frost in Monument?
In half of years the first 32° night comes by October 1, and the last spring frost by May 17.
What is the rainiest month in Monument?
July, with 3.0 inches of rain and melted snow. The year totals 22 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Monument itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Monument, CO (2 mi, snow) and Monument 3s, CO (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.