Hottest Cities in Wyoming.

Cities in Wyoming with the highest average summer temperatures, from 30-year averages at the nearest weather station.

11 cities ranked · See the national list

#	City	Population	Avg Summer High	Hot Days/yr (90°F+)
1	Casper	58,839	85°F	36
2	Sheridan	19,285	84°F	35
3	Riverton	10,856	84°F	38
4	Gillette	33,431	83°F	27
5	Rock Springs	23,127	83°F	15
6	Green River	11,581	83°F	30
7	Cheyenne	65,239	80°F	12
8	Cody	10,276	80°F	16
9	Laramie	32,234	78°F	4
10	Evanston	11,800	78°F	2
11	Jackson	10,756	76°F	5

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