Wyoming weather by month
Average temperatures and rainfall across Wyoming, based on 30 years of climate data.
Monthly climate (Cheyenne)
| Month | High / Low | Rainfall | Wet days |
|---|---|---|---|
| Jan | 38° / 21° | 0.5 in | 3.9 |
| Feb | 40° / 21° | 0.7 in | 4.8 |
| Mar | 49° / 27° | 1.4 in | 6.6 |
| Apr | 55° / 32° | 2.4 in | 10 |
| May | 64° / 42° | 3.0 in | 12.3 |
| Jun | 76° / 51° | 2.1 in | 10.2 |
| Jul | 83° / 57° | 1.6 in | 9.3 |
| Aug | 81° / 56° | 1.5 in | 8.2 |
| Sep | 73° / 47° | 1.5 in | 6 |
| Oct | 59° / 36° | 1.5 in | 6.9 |
| Nov | 47° / 27° | 0.8 in | 4.7 |
| Dec | 38° / 21° | 0.7 in | 4.2 |