Evansville, WY climate
Evansville has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 88°, a January night drops to 15°, and about 82 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Evansville feels like
Winter
Spring
Summer
Fall
Evansville 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 | 37° | 15° | 0.4" | 11.1" | 7 | 22 | 21° – 32° |
| February | 39° | 16° | 0.5" | 14.6" | 8 | 17 | 20° – 35° |
| March | 50° | 24° | 0.8" | 12.3" | 8 | 9 | 28° – 44° |
| April | 57° | 30° | 1.5" | 10.7" | 12 | 5 | 37° – 49° |
| May | 67° | 39° | 2.3" | 3.0" | 13 | 1 | 48° – 59° |
| June | 79° | 47° | 1.4" | 0 | 9 | 0 | 56° – 69° |
| July | 88° | 55° | 1.0" | 0 | 8 | 0 | 64° – 75° |
| August | 86° | 52° | 0.8" | 0 | 6 | 0 | 64° – 73° |
| September | 76° | 43° | 1.0" | 0.4" | 6 | 0 | 54° – 65° |
| October | 60° | 32° | 1.1" | 5.9" | 8 | 3 | 38° – 53° |
| November | 46° | 23° | 0.5" | 6.7" | 6 | 7 | 22° – 43° |
| December | 37° | 15° | 0.5" | 17.0" | 8 | 20 | 18° – 30° |
| Year | 60° | 32° | 11.9" | 81.7" | 99 | 84 |
“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 Evansville
Evansville gets 12 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 99 days a year. Snow covers the ground about 84 days of the year.
About 138 frost-free days a year
In half of years the last 32° night comes by May 10 and the first one by September 29. That leaves about 138 frost-free days for gardens, shorter than 90% of U.S. towns.
Heating and cooling a home in Evansville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Evansville, 92% of that work is heating and 8% 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.
Evansville and its neighbors
Evansville borders 2 towns with climate data. January nights across them vary by 0.3°. Brookhurst has the coldest January nights (15°) and Casper the hottest July afternoons (89°). Evansville’s January low is 15° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Evansville 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 Evansville averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.9°). The shift is larger than in 78% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Evansville’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 22° to 43°. August is the most reliable, staying within 9°.
Common questions about Evansville’s climate
What is the coldest month in Evansville?
December, with a typical high of 37° and a low of 15°.
What is the hottest month in Evansville?
July, with a typical high of 88° and a low of 55°. About 36 days a year reach 90°.
How much snow does Evansville get?
About 82 inches in a normal winter, most of it in December.
When is the first frost in Evansville?
In half of years the first 32° night comes by September 29, and the last spring frost by May 10.
What is the rainiest month in Evansville?
May, with 2.3 inches of rain and melted snow. The year totals 12 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Evansville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Casper 4.3 Wsw, WY (9 mi, snow) and Casper WWTP, WY (2 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.