Tall Timber, CO climate
Tall Timber has chilly, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 21°, and about 93 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Tall Timber feels like
Winter
Spring
Summer
Fall
Tall Timber 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° | 21° | 0.6" | 11.2" | 6 | 27° – 38° |
| February | 44° | 21° | 0.8" | 19.0" | 7 | 28° – 39° |
| March | 51° | 27° | 1.4" | 15.4" | 7 | 34° – 45° |
| April | 57° | 32° | 2.3" | 13.2" | 9 | 39° – 50° |
| May | 66° | 41° | 2.7" | 2.2" | 12 | 48° – 57° |
| June | 78° | 49° | 1.9" | 0 | 9 | 59° – 69° |
| July | 83° | 56° | 2.1" | 0 | 10 | 66° – 74° |
| August | 81° | 54° | 1.9" | 0 | 9 | 64° – 71° |
| September | 74° | 47° | 1.6" | 0.4" | 7 | 55° – 64° |
| October | 62° | 36° | 1.1" | 7.1" | 7 | 42° – 54° |
| November | 51° | 28° | 0.8" | 9.3" | 5 | 30° – 46° |
| December | 43° | 21° | 0.5" | 14.9" | 6 | 25° – 36° |
| Year | 61° | 36° | 17.6" | 92.7" | 93 |
“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 Tall Timber
Tall Timber gets 18 inches of rain and melted snow a year. May is the wettest month and December the driest. Rain or snow falls on about 93 days a year.
About 151 frost-free days a year
In half of years the last 32° night comes by May 6 and the first one by October 5. That leaves about 151 frost-free days for gardens, shorter than 80% of U.S. towns.
Heating and cooling a home in Tall Timber
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Tall Timber, 90% of that work is heating and 10% 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 Tall Timber 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 Tall Timber averaged 1.1° warmer than the 1900s. The biggest change is in March (+3.0°). The shift is smaller than in 58% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Tall Timber’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 30° to 46°. August is the most reliable, staying within 8°.
Common questions about Tall Timber’s climate
What is the coldest month in Tall Timber?
January, with a typical high of 44° and a low of 21°.
What is the hottest month in Tall Timber?
July, with a typical high of 83° and a low of 56°. About 33 days a year reach 90°.
How much snow does Tall Timber get?
About 93 inches in a normal winter, most of it in February.
When is the first frost in Tall Timber?
In half of years the first 32° night comes by October 5, and the last spring frost by May 6.
What is the rainiest month in Tall Timber?
May, with 2.7 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Tall Timber itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Boulder 1.6 S, CO (5 mi, snow) and Boulder, CO (5 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.