Afton, WY
Climate overview — based on NOAA 1991-2020 normals from AFTON, WY US.
Year-round temperatures (°F)
Climate summary
Afton has an annual average temperature of 38.5°F with about 17.7 inches of precipitation per year and 87.8 inches of snow. The warmest month is July (average high 80.0°F), and the coldest is January (average low 4.8°F). May is typically the wettest month (2.36 in) and July the driest (1.05 in). Snow typically falls from January through December.
Best time to visit Afton
Full guide →Climate change signal
All-time records →54 of 366 (14.8%) of Afton'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.
| 1950s | 14 | |
| 1960s | 59 | |
| 1970s | 47 | |
| 1980s | 65 | |
| 1990s | 71 | |
| 2000s | 47 | |
| 2010s | 30 | |
| 2020s | 33 |
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 | 25.7°F | 4.8°F | 15.3°F | 1.25 in | 21.8 in | 12 |
| February | 30.5°F | 7.6°F | 19.1°F | 1.31 in | 15.0 in | 11 |
| March | 40.3°F | 16.5°F | 28.4°F | 1.47 in | 12.2 in | 9 |
| April | 49.8°F | 25.2°F | 37.5°F | 1.46 in | 5.0 in | 10 |
| May | 60.4°F | 33.1°F | 46.7°F | 2.36 in | 0.8 in | 11 |
| June | 70.6°F | 38.4°F | 54.5°F | 1.82 in | 0.2 in | 8 |
| July | 80.0°F | 44.1°F | 62.0°F | 1.05 in | — | 7 |
| August | 79.3°F | 42.6°F | 61.0°F | 1.11 in | — | 6 |
| September | 69.3°F | 34.4°F | 51.9°F | 1.52 in | 0.2 in | 7 |
| October | 55.8°F | 25.5°F | 40.7°F | 1.63 in | 3.7 in | 9 |
| November | 39.2°F | 16.4°F | 27.8°F | 1.34 in | 11.4 in | 10 |
| December | 26.8°F | 6.7°F | 16.8°F | 1.41 in | 17.5 in | 13 |
Climate twins of Afton
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).