Green River, WY
Climate overview — based on NOAA 1991-2020 normals from GREEN RVR, WY US.
Year-round temperatures (°F)
Climate summary
Green River has an annual average temperature of 44.1°F with about 10.3 inches of precipitation per year and 38.5 inches of snow. The warmest month is July (average high 86.6°F), and the coldest is January (average low 8.1°F). May is typically the wettest month (1.67 in) and July the driest (0.49 in). Snow typically falls from September through May.
Best time to visit Green River
Full guide →Climate change signal
All-time records →57 of 366 (15.6%) of Green River'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.
| 1890s | 15 | |
| 1900s | 9 | |
| 1910s | 24 | |
| 1920s | 32 | |
| 1930s | 72 | |
| 1940s | 23 | |
| 1950s | 22 | |
| 1960s | 7 | |
| 1970s | 7 | |
| 1980s | 27 | |
| 1990s | 25 | |
| 2000s | 26 | |
| 2010s | 34 | |
| 2020s | 43 |
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 | 31.0°F | 8.1°F | 19.6°F | 0.69 in | 6.3 in | 5 |
| February | 36.1°F | 12.9°F | 24.5°F | 0.51 in | 7.6 in | 5 |
| March | 47.1°F | 22.5°F | 34.8°F | 0.84 in | 5.4 in | 6 |
| April | 56.4°F | 29.3°F | 42.8°F | 1.32 in | 3.9 in | 7 |
| May | 66.2°F | 37.6°F | 51.9°F | 1.67 in | 0.9 in | 9 |
| June | 78.1°F | 45.5°F | 61.8°F | 0.92 in | — | 5 |
| July | 86.6°F | 52.9°F | 69.7°F | 0.49 in | — | 5 |
| August | 85.0°F | 50.7°F | 67.9°F | 0.64 in | — | 5 |
| September | 75.7°F | 40.9°F | 58.3°F | 0.87 in | 0.3 in | 6 |
| October | 60.7°F | 30.3°F | 45.5°F | 1.04 in | 2.4 in | 6 |
| November | 43.9°F | 19.0°F | 31.4°F | 0.69 in | 5.0 in | 5 |
| December | 32.0°F | 9.8°F | 20.9°F | 0.63 in | 6.7 in | 6 |
Climate twins of Green River
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).