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Climate in Evansville · NOAA 1991–2020 normals

Evansville gets about 82 inches of snow a winter, more than 95% of U.S. towns

The warmest part of a July day comes in at 88° on average. Precipitation is light here, less than falls on 96% of U.S. towns. March has warmed most since 1901–2000, part of a 1.7° rise. Central heating does most of its work from October to April, in months below 50° on average.

More snow than 95% of U.S. towns#2Snowiest  of 28 in WY
Drier than 96% of U.S. towns#13 driest of 31 in WY
All WY rankings →

A year in Evansville at a glance

Each month’s typical high and low, and what it brings.

Jan37°15° 11" snow
Feb39°16° 15" snow
Mar50°24° 12" snow
Apr57°30° 11" snow
May67°39° Last frost ~May 103" snow
Jun79°47° 5 days 90°+
Jul88°55° 16 days 90°+
Aug86°52° 12 days 90°+
Sep76°43° First frost ~Sep 292 days 90°+
Oct60°32° 6" snow
Nov now46°23° 7" snow
Dec37°15° 17" snow

What stands out about Evansville’s climate

Compared with towns across the U.S., with Evansville’s place in Wyoming beside it.

A normal year

What a year in Evansville feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
38° / 15°
24 days with 1"+ of snow
Spring
58° / 31°
Last frost around May 10
Summer
85° / 52°
36 days reach 90°
Fall
61° / 32°
First frost around Sep 29
Best months to be outsideJunSepHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 138 frost-free days a year

In half of years the last 32° night comes by May 10 and the first by September 29. Frost and day counts come from NOAA’s station at Casper Wwtp, WY, 1.9 miles from the town’s center, at about the same height.

163
nights at or below 32° in a normal year
27th most of 31 in Wyoming
More freezing nights than 92% of U.S. towns
13
nights at or below 0°
20th most of 31 in Wyoming
More nights at or below 0° than 88% of U.S. towns
36
days that reach 90°
8th most of 31 in Wyoming
More 90° days than 67% of U.S. towns
1
days that reach 100°
7th most of 31 in Wyoming
More 100° days than 75% of U.S. towns
5aUSDA zone
Plant hardiness zone 5a

The 2023 USDA map puts Evansville’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −18°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

28
JFMAMJJASOND

90° days by month

Average days at 90° or more

16
JFMAMJJASOND
Rain & snow

About 82 inches of snow a winter

Snow, measured at Casper 4.3 Wsw, WY, falls mostly in December. Precipitation (rain plus melted snow) adds up to 12 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 99 days a year.

12"
Rain + melted snow a year
13th driest of 31 in Wyoming
Drier than 96% of U.S. towns
82"
Snow in a normal winter
2nd snowiest of 28 in Wyoming
More snow than 95% of U.S. towns
84 days
With 1"+ of snow on the ground
4th most of 22 in Wyoming
More days with snow on the ground than 92% of U.S. towns

Rain + melted snow by month

Inches of water

2.3"
JFMAMJJASOND

Snowfall by month

Inches of snow

17"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Evansville

92% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.

6,956 heating degree daysMore heating than 86% of U.S. towns
564 cooling degree daysLess cooling than 81% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Casper Wwtp, WY.

Living here

Living with Evansville’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

138 frost-free days in zone 5a. The last frost comes by May 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 29.

Get outside

Months with highs of 62–84° and lows of 40° or more: June and September. 3.3 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Evansville from natural hazards, river flooding is the largest share (51%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Evansville and its neighbors

Every town next door is within a degree of Evansville in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Mills: January low 14°, July high 89°Red Butte: January low 14°, July high 89°Hartrandt: January low 15°, July high 88°Brookhurst: January low 15°, July high 88°Casper: January low 15°, July high 89°Evansville: January low 15°, July high 88°EvansvilleBrookhurstCasper
ColderMilder14° to 15°
Brookhurst14.9° about the same
Casper14.9° about the same
Evansville15.2°

Climates most like Evansville’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Evansville, WY15°88°12"82"
Midway, UT13°88°16"75"
Thornton, CO18°90°14"74"
Pocatello, ID19°87°15"64"
Livingston, MT17°85°14"63"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

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°).

+1.7°1991–2020 vs. 1901–2000

A bigger shift than in 69% of U.S. towns.

Winter+2.2°now 27°, was 24°
Spring+1.9°now 44°, was 43°
Summer+1.3°now 68°, was 67°
Fall+1.2°now 47°, was 45°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Evansville compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Evansville’s place among Wyoming’s.

Summer heat88° July high
Hotter July afternoons than 69% of U.S. towns10th hottest of 31 in Wyoming
Winter cold15° January low
Colder January nights than 84% of U.S. towns24th coldest of 31 in Wyoming
Precipitation12" a year
Drier than 96% of U.S. towns13th driest of 31 in Wyoming
Snow82" a winter
More snow than 95% of U.S. towns2nd snowiest of 28 in Wyoming
Hot days36 days at 90°+
More 90° days than 67% of U.S. towns8th most of 31 in Wyoming
Freezing nights163 a year
More freezing nights than 92% of U.S. towns27th most of 31 in Wyoming
Growing season138 frost-free days
A shorter frost-free season than 97% of U.S. towns17th shortest of 29 in Wyoming
Month by month

Evansville weather by month

Highs, lows and precipitation from NOAA’s grid at Evansville’s center; snow, wet days and snow on the ground from Casper 4.3 Wsw, WY. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January37°15°0.4"11.1"72221° – 32°
February39°16°0.5"14.6"81720° – 35°
March50°24°0.8"12.3"8928° – 44°
April57°30°1.5"10.7"12537° – 49°
May67°39°2.3"3.0"13148° – 59°
June79°47°1.4"0.0"9056° – 69°
July88°55°1.0"0.0"8064° – 75°
August86°52°0.8"0.0"6064° – 73°
September76°43°1.0"0.4"6054° – 65°
October60°32°1.1"5.9"8338° – 53°
November46°23°0.5"6.7"6722° – 43°
December37°15°0.5"17.0"82018° – 30°
Year60°32°11.8"81.7"9984
Year to year

How much a month can swing

A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 22° to 43°. August is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Evansville’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Evansville’s center.
  • Snow: Casper 4.3 Wsw, WY.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Casper Wwtp, WY, 1.9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Evansville’s climate

What is the weather like in Evansville?

A typical July afternoon reaches 88°, a January night drops to 15°, and about 82 inches of snow falls in a normal winter. Colder January nights than 84% of U.S. towns; hotter July afternoons than 69% of U.S. towns.

How cold does it get in Evansville in winter?

December nights average 15°. About 163 nights a year reach 32° or below and 13 reach 0° or below. In the coldest December of the last 30 years the month averaged 18°.

How much snow does Evansville get?

About 82 inches in a normal winter at Casper 4.3 Wsw, WY, most of it in December, with snow on the ground about 84 days a year.

How hot does it get in Evansville?

July, with a typical high of 88° and a low of 55°. About 36 days a year reach 90° and 1 reach 100° (Casper Wwtp, WY).

When is the first and last frost in Evansville?

In half of years the last spring frost (32°) comes by May 10 and the first fall frost by September 29, about 138 frost-free days, at Casper Wwtp, WY.

What growing zone is Evansville in?

Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −18°.

What is the best time of year to visit Evansville?

By one simple rule (highs of 62–84° and lows of 40° or more), June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Evansville getting warmer?

Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 69% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Evansville.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.