Arlington, WY climate
Arlington has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 79°, a January night drops to 12°, and about 93 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Arlington feels like
Winter
Spring
Summer
Fall
Arlington 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 | 33° | 12° | 0.8" | 9.0" | 5 | 17° – 29° |
| February | 34° | 13° | 1.0" | 15.1" | 5 | 18° – 29° |
| March | 43° | 20° | 1.5" | 13.2" | 6 | 25° – 38° |
| April | 50° | 26° | 2.0" | 17.0" | 8 | 32° – 43° |
| May | 61° | 34° | 2.2" | 5.1" | 7 | 42° – 52° |
| June | 72° | 42° | 1.4" | 0 | 4 | 52° – 62° |
| July | 79° | 48° | 1.2" | 0 | 4 | 59° – 68° |
| August | 77° | 46° | 1.0" | 0 | 4 | 57° – 66° |
| September | 69° | 38° | 1.3" | 0.4" | 4 | 48° – 58° |
| October | 55° | 28° | 1.4" | 11.6" | 5 | 34° – 48° |
| November | 41° | 20° | 1.1" | 9.4" | 5 | 20° – 38° |
| December | 33° | 12° | 1.0" | 12.5" | 6 | 16° – 26° |
| Year | 54° | 28° | 15.6" | 93.3" | 64 |
“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 Arlington
Arlington gets 16 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 64 days a year.
About 108 frost-free days a year
In half of years the last 32° night comes by May 28 and the first one by September 13. That leaves about 108 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Arlington
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Arlington, 98% of that work is heating and 2% 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 Arlington 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 Arlington averaged 2.0° warmer than the 1900s. The biggest change is in March (+4.2°). The shift is larger than in 93% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Arlington’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 8°.
Common questions about Arlington’s climate
What is the coldest month in Arlington?
December, with a typical high of 33° and a low of 12°.
What is the hottest month in Arlington?
July, with a typical high of 79° and a low of 48°. About 3 days a year reach 90°.
How much snow does Arlington get?
About 93 inches in a normal winter, most of it in April.
When is the first frost in Arlington?
In half of years the first 32° night comes by September 13, and the last spring frost by May 28.
What is the rainiest month in Arlington?
May, with 2.2 inches of rain and melted snow. The year totals 16 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Arlington itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Elk Mtn, WY (12 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.