Arrowhead Springs, WY climate
Arrowhead Springs has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 11°, and about 31 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Arrowhead Springs feels like
Winter
Spring
Summer
Fall
Arrowhead Springs 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 | 32° | 11° | 0.5" | 6.1" | 4 | 14 | 13° – 31° |
| February | 36° | 14° | 0.5" | 5.8" | 5 | 8 | 13° – 32° |
| March | 46° | 23° | 0.6" | 4.4" | 4 | 3 | 26° – 40° |
| April | 55° | 29° | 1.1" | 1.9" | 6 | 1 | 36° – 48° |
| May | 65° | 37° | 1.4" | 0.5" | 9 | 0 | 45° – 56° |
| June | 77° | 45° | 0.8" | 0 | 5 | 0 | 54° – 66° |
| July | 86° | 53° | 0.6" | 0 | 4 | 0 | 61° – 74° |
| August | 83° | 51° | 0.8" | 0 | 5 | 0 | 63° – 71° |
| September | 73° | 41° | 1.0" | 0 | 6 | 0 | 53° – 61° |
| October | 58° | 31° | 1.1" | 2.3" | 5 | 1 | 36° – 51° |
| November | 43° | 20° | 0.5" | 3.8" | 4 | 4 | 21° – 39° |
| December | 32° | 12° | 0.5" | 6.5" | 6 | 13 | 16° – 29° |
| Year | 57° | 30° | 9.4" | 31.3" | 62 | 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 Arrowhead Springs
Arrowhead Springs gets 9 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 62 days a year. Snow covers the ground about 44 days of the year.
About 121 frost-free days a year
In half of years the last 32° night comes by May 24 and the first one by September 24. That leaves about 121 frost-free days for gardens, shorter than 97% of U.S. towns.
Heating and cooling a home in Arrowhead Springs
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Arrowhead Springs, 96% of that work is heating and 4% 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 Arrowhead Springs 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 Arrowhead Springs averaged 1.5° warmer than the 1900s. The biggest change is in March (+3.6°). The shift is larger than in 68% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Arrowhead Springs’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 13° to 32°. September is the most reliable, staying within 8°.
Common questions about Arrowhead Springs’s climate
What is the coldest month in Arrowhead Springs?
January, with a typical high of 32° and a low of 11°.
What is the hottest month in Arrowhead Springs?
July, with a typical high of 86° and a low of 53°. About 15 days a year reach 90°.
How much snow does Arrowhead Springs get?
About 31 inches in a normal winter, most of it in December.
When is the first frost in Arrowhead Springs?
In half of years the first 32° night comes by September 24, and the last spring frost by May 24.
What is the rainiest month in Arrowhead Springs?
May, with 1.4 inches of rain and melted snow. The year totals 9 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Arrowhead Springs itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Rock Springs Fire Dept, WY (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.