Lyman, WY
Climate overview — based on NOAA 1991-2020 normals from MTN VIEW, WY US.
Year-round temperatures (°F)
Climate summary
Lyman has an annual average temperature of 40.8°F with about 11 inches of precipitation per year and 63.8 inches of snow. The warmest month is July (average high 79.7°F), and the coldest is December (average low 10.6°F). May is typically the wettest month (1.36 in) and February the driest (0.56 in). Snow typically falls from January through December.
Best time to visit Lyman
Full guide →Climate change signal
All-time records →74 of 366 (20.2%) of Lyman'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.
| 1960s | 17 | |
| 1970s | 40 | |
| 1980s | 78 | |
| 1990s | 60 | |
| 2000s | 65 | |
| 2010s | 50 | |
| 2020s | 56 |
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 | 32.0°F | 10.9°F | 21.5°F | 0.61 in | 8.9 in | 6 |
| February | 33.6°F | 11.2°F | 22.4°F | 0.56 in | 9.0 in | 6 |
| March | 43.8°F | 19.5°F | 31.7°F | 0.76 in | 9.4 in | 7 |
| April | 52.3°F | 25.1°F | 38.7°F | 1.10 in | 7.5 in | 8 |
| May | 62.6°F | 32.8°F | 47.7°F | 1.36 in | 3.0 in | 9 |
| June | 72.6°F | 40.0°F | 56.3°F | 0.91 in | 0.2 in | 6 |
| July | 79.7°F | 46.7°F | 63.2°F | 1.10 in | — | 7 |
| August | 78.1°F | 45.2°F | 61.7°F | 0.82 in | — | 8 |
| September | 70.0°F | 37.2°F | 53.6°F | 1.28 in | 1.0 in | 7 |
| October | 56.9°F | 27.9°F | 42.4°F | 0.98 in | 5.6 in | 7 |
| November | 41.3°F | 17.2°F | 29.2°F | 0.76 in | 9.7 in | 6 |
| December | 31.3°F | 10.6°F | 20.9°F | 0.79 in | 9.5 in | 7 |
Climate twins of Lyman
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).