Pine Brook Hill, CO climate
Pine Brook Hill has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 19°, and about 93 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Pine Brook Hill feels like
Winter
Spring
Summer
Fall
Pine Brook Hill 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 | 45° | 19° | 0.6" | 11.2" | 6 | 25° – 38° |
| February | 45° | 20° | 0.8" | 19.0" | 7 | 28° – 39° |
| March | 53° | 26° | 1.6" | 15.4" | 7 | 35° – 46° |
| April | 59° | 32° | 2.5" | 13.2" | 9 | 40° – 51° |
| May | 68° | 41° | 2.7" | 2.2" | 12 | 49° – 58° |
| June | 79° | 49° | 1.9" | 0 | 9 | 60° – 70° |
| July | 85° | 55° | 2.0" | 0 | 10 | 66° – 75° |
| August | 83° | 53° | 1.8" | 0 | 9 | 64° – 72° |
| September | 76° | 45° | 1.6" | 0.4" | 7 | 55° – 65° |
| October | 64° | 34° | 1.2" | 7.1" | 7 | 42° – 55° |
| November | 52° | 26° | 0.9" | 9.3" | 5 | 30° – 46° |
| December | 44° | 19° | 0.6" | 14.9" | 6 | 24° – 35° |
| Year | 63° | 35° | 18.1" | 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 Pine Brook Hill
Pine Brook Hill 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 Pine Brook Hill
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Pine Brook Hill, 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.
Pine Brook Hill and its neighbors
Pine Brook Hill borders 1 town with climate data. January nights across them vary by 1.5°. Boulder has both the coldest January nights (17°) and the hottest July afternoons (88°). Pine Brook Hill’s January low is 19° and its July high 85°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Pine Brook Hill 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 Pine Brook Hill averaged 1.1° warmer than the 1900s. The biggest change is in March (+2.9°). The shift is smaller than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Pine Brook Hill’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 7°.
Common questions about Pine Brook Hill’s climate
What is the coldest month in Pine Brook Hill?
January, with a typical high of 45° and a low of 19°.
What is the hottest month in Pine Brook Hill?
July, with a typical high of 85° and a low of 55°. About 33 days a year reach 90°.
How much snow does Pine Brook Hill get?
About 93 inches in a normal winter, most of it in February.
When is the first frost in Pine Brook Hill?
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 Pine Brook Hill?
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 Pine Brook Hill itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Boulder 1.6 S, CO (4 mi, snow) and Boulder, CO (4 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.