Vernon, CO climate
Vernon has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 18°, and about 38 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Vernon feels like
Winter
Spring
Summer
Fall
Vernon 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 | 43° | 18° | 0.4" | 5.3" | 3 | 12 | 20° – 39° |
| February | 46° | 20° | 0.5" | 7.7" | 5 | 12 | 24° – 41° |
| March | 56° | 28° | 0.8" | 5.4" | 5 | 4 | 34° – 50° |
| April | 64° | 35° | 1.8" | 4.2" | 9 | 1 | 44° – 56° |
| May | 73° | 46° | 2.8" | 0.6" | 11 | 0 | 52° – 64° |
| June | 85° | 56° | 2.7" | 0 | 8 | 0 | 66° – 77° |
| July | 90° | 62° | 3.2" | 0 | 10 | 0 | 72° – 81° |
| August | 88° | 60° | 2.5" | 0 | 8 | 0 | 69° – 77° |
| September | 80° | 51° | 1.3" | 0 | 6 | 0 | 59° – 71° |
| October | 66° | 37° | 1.2" | 3.0" | 6 | 1 | 43° – 57° |
| November | 53° | 26° | 0.6" | 3.2" | 3 | 3 | 32° – 46° |
| December | 43° | 18° | 0.4" | 8.8" | 4 | 11 | 23° – 36° |
| Year | 66° | 38° | 18.1" | 38.2" | 77 | 44 |
“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 Vernon
Vernon gets 18 inches of rain and melted snow a year. July is the wettest month and January the driest. Rain or snow falls on about 77 days a year. Snow covers the ground about 44 days of the year.
About 151 frost-free days a year
In half of years the last 32° night comes by May 7 and the first one by October 6. That leaves about 151 frost-free days for gardens, shorter than 80% of U.S. towns.
Heating and cooling a home in Vernon
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Vernon, 86% of that work is heating and 14% 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 Vernon 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 Vernon averaged 2.0° warmer than the 1900s. The biggest change is in March (+4.0°). The shift is larger than in 92% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Vernon’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 20° to 39°. August is the most reliable, staying within 8°.
Common questions about Vernon’s climate
What is the coldest month in Vernon?
January, with a typical high of 43° and a low of 18°.
What is the hottest month in Vernon?
July, with a typical high of 90° and a low of 62°. About 54 days a year reach 90°.
How much snow does Vernon get?
About 38 inches in a normal winter, most of it in December.
When is the first frost in Vernon?
In half of years the first 32° night comes by October 6, and the last spring frost by May 7.
What is the rainiest month in Vernon?
July, with 3.2 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Vernon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Vernon 4ene, CO (4 mi, snow) and Wray, CO (11 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.