Cheyenne, WY
Climate overview — based on NOAA 1991-2020 normals from CHEYENNE WFO, WY US.
Year-round temperatures (°F)
Climate summary
Cheyenne has an annual average temperature of 46.6°F with about 16 inches of precipitation per year and 65.6 inches of snow. The warmest month is July (average high 83.0°F), and the coldest is February (average low 17.8°F). May is typically the wettest month (2.53 in) and January the driest (0.36 in). Snow typically falls from September through May.
Best time to visit Cheyenne
Full guide →Climate change signal
All-time records →165 of 366 (45.1%) of Cheyenne's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2000s | 134 | |
| 2010s | 151 | |
| 2020s | 81 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 40.6°F | 18.0°F | 29.3°F | 0.36 in | 5.5 in | 5 |
| February | 41.1°F | 17.8°F | 29.4°F | 0.52 in | 9.4 in | 8 |
| March | 49.2°F | 24.6°F | 36.9°F | 0.96 in | 9.2 in | 7 |
| April | 54.8°F | 30.1°F | 42.4°F | 1.83 in | 11.5 in | 11 |
| May | 64.3°F | 39.5°F | 51.9°F | 2.53 in | 4.0 in | 13 |
| June | 76.1°F | 49.0°F | 62.5°F | 2.23 in | — | 11 |
| July | 83.0°F | 55.6°F | 69.3°F | 2.23 in | — | 11 |
| August | 81.2°F | 53.5°F | 67.4°F | 1.63 in | — | 10 |
| September | 72.5°F | 45.3°F | 58.9°F | 1.55 in | 0.2 in | 7 |
| October | 59.0°F | 33.3°F | 46.1°F | 1.06 in | 6.9 in | 7 |
| November | 47.7°F | 24.4°F | 36.1°F | 0.60 in | 8.0 in | 6 |
| December | 39.5°F | 17.8°F | 28.7°F | 0.49 in | 10.9 in | 6 |
Climate twins of Cheyenne
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).