Hayden, CO climate
Hayden has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 7°, and about 113 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Hayden feels like
Winter
Spring
Summer
Fall
Hayden 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 | 30° | 7° | 1.4" | 26.3" | 12 | 31 | 10° – 28° |
| February | 36° | 12° | 1.2" | 17.9" | 11 | 29 | 17° – 32° |
| March | 47° | 21° | 1.2" | 12.6" | 10 | 20 | 28° – 41° |
| April | 57° | 29° | 1.8" | 10.0" | 11 | 3 | 38° – 47° |
| May | 67° | 36° | 1.7" | 1.4" | 11 | 0 | 47° – 55° |
| June | 78° | 43° | 1.0" | 0.1" | 7 | 0 | 55° – 66° |
| July | 85° | 50° | 1.0" | 0 | 8 | 0 | 62° – 71° |
| August | 83° | 48° | 1.2" | 0 | 9 | 0 | 62° – 69° |
| September | 75° | 40° | 1.6" | 0.2" | 9 | 0 | 53° – 61° |
| October | 61° | 29° | 1.5" | 5.0" | 8 | 2 | 37° – 51° |
| November | 45° | 19° | 1.3" | 15.7" | 9 | 13 | 20° – 38° |
| December | 32° | 9° | 1.3" | 23.8" | 11 | 28 | 14° – 28° |
| Year | 58° | 29° | 16.2" | 113.0" | 116 | 125 |
“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 Hayden
Hayden gets 16 inches of rain and melted snow a year. April is the wettest month and July the driest. Rain or snow falls on about 116 days a year. Snow covers the ground about 125 days of the year.
About 109 frost-free days a year
In half of years the last 32° night comes by June 1 and the first one by September 20. That leaves about 109 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in Hayden
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hayden, 97% of that work is heating and 3% 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 Hayden 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 Hayden averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.8°). The shift is larger than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Hayden’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 38°. August is the most reliable, staying within 7°.
Common questions about Hayden’s climate
What is the coldest month in Hayden?
January, with a typical high of 30° and a low of 7°.
What is the hottest month in Hayden?
July, with a typical high of 85° and a low of 50°. About 13 days a year reach 90°.
How much snow does Hayden get?
About 113 inches in a normal winter, most of it in January.
When is the first frost in Hayden?
In half of years the first 32° night comes by September 20, and the last spring frost by June 1.
What is the rainiest month in Hayden?
April, with 1.8 inches of rain and melted snow. The year totals 16 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hayden itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hayden, CO (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.