Brook Forest, CO climate
Brook Forest has chilly, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 76°, a January night drops to 16°, and about 130 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Brook Forest feels like
Winter
Spring
Summer
Fall
Brook Forest 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 | 37° | 16° | 0.7" | 15.0" | 6 | 29 | 21° – 32° |
| February | 38° | 16° | 0.9" | 16.9" | 7 | 28 | 21° – 34° |
| March | 45° | 21° | 1.8" | 26.5" | 8 | 25 | 28° – 39° |
| April | 50° | 26° | 2.7" | 25.1" | 10 | 18 | 33° – 43° |
| May | 59° | 34° | 2.4" | 5.8" | 12 | 3 | 41° – 50° |
| June | 71° | 42° | 1.9" | 0 | 11 | 0 | 53° – 62° |
| July | 76° | 49° | 2.5" | 0 | 13 | 0 | 59° – 66° |
| August | 74° | 47° | 2.6" | 0 | 15 | 0 | 56° – 64° |
| September | 67° | 40° | 1.7" | 1.2" | 9 | 1 | 49° – 58° |
| October | 56° | 30° | 1.3" | 7.4" | 7 | 4 | 36° – 48° |
| November | 44° | 22° | 0.9" | 14.8" | 6 | 16 | 25° – 39° |
| December | 37° | 15° | 0.7" | 17.0" | 6 | 24 | 20° – 31° |
| Year | 55° | 30° | 20.0" | 129.7" | 110 | 148 |
“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 Brook Forest
Brook Forest gets 20 inches of rain and melted snow a year. April is the wettest month and January the driest. Rain or snow falls on about 110 days a year. Snow covers the ground about 148 days of the year.
About 112 frost-free days a year
In half of years the last 32° night comes by May 30 and the first one by September 19. That leaves about 112 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in Brook Forest
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Brook Forest, 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 Brook Forest 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 Brook Forest averaged 1.3° warmer than the 1900s. The biggest change is in March (+3.1°). The shift is larger than in 54% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Brook Forest’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 25° to 39°. July is the most reliable, staying within 7°.
Common questions about Brook Forest’s climate
What is the coldest month in Brook Forest?
December, with a typical high of 37° and a low of 15°.
What is the hottest month in Brook Forest?
July, with a typical high of 76° and a low of 49°.
How much snow does Brook Forest get?
About 130 inches in a normal winter, most of it in March.
When is the first frost in Brook Forest?
In half of years the first 32° night comes by September 19, and the last spring frost by May 30.
What is the rainiest month in Brook Forest?
April, with 2.7 inches of rain and melted snow. The year totals 20 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Brook Forest itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Inter Canyon, CO (9 mi, snow) and Georgetown, CO (19 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.