Sheridan, WY Climate

Summary Graph

The summary climate graph for Sheridan, WY shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Sheridan, WY.


The warmest month in Sheridan County Airport, Sheridan, Wyoming is July with an average high temperature of 89.3°F. The hottest day on record was July 15 2002 when the temperature hit 107.1°F. During January the overnight temperature drops to an average of 11.3°F with the lowest temperature of -35.1°F being recorded on December 22 1989.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

15 Jul 2002107.1°F
15 Jul 1988106°F
9 Jul 1989106°F
27 Jun 1988105.1°F
13 Jul 2005105.1°F

The warmest months on average were:

July 200696.7°F
July 201295.9°F
July 198895.3°F
July 200794.8°F
July 200294.7°F

The coldest days on record are:

22 Dec 1989-35.1°F
24 Dec 1983-35°F
12 Jan 1997-34.6°F
22 Dec 1990-33.2°F
4 Feb 1989-32.3°F

The coldest months on average were:

January 1979-9.4°F
December 1983-1.1°F
December 1984-0.4°F
January 19780°F
December 19781.5°F


The wettest month in Sheridan, WY is May with an average of 2.6 inches of rain falling on 10 to 11 days. The driest month in Sheridan, WY is February with an average of 0.7 inches of rain falling on 1 to 2 days.

Wettest Days

The wettest days on record are:

10 December 19892.1 inches
22 December 19750.9 inches
10 December 19840.8 inches
9 December 19920.8 inches
1 December 19800.7 inches

Wettest Months

The wettest months on record are:

March 197329.3 inches
April 197317.5 inches
January 197314.9 inches
May 20056.3 inches
May 19786.1 inches

Driest Months

The driest months on record are:

September 20120 inches
August 19950 inches
July 19990 inches
January 20040 inches
August 20010 inches