Weather information for the Green River-Rock Spgs area is provided below. Average temperatures, climate details and current forecasts are included.
Climate
Rock Springs and Green River are sunny places, cooled year round by afternoon winds. Summer is always mild, never too hot, although winter can be frigid. Most of the area's precipitation comes from snow, rather than rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
| Avg. High | 33 | 38 | 48 | 58 | 69 | 79 | 86 | 85 | 75 | 63 | 45 | 35 | |
| Avg. Low | 5 | 9 | 22 | 28 | 36 | 43 | 49 | 47 | 37 | 27 | 16 | 6 | |
| Precipitation | 0.4 | 0.4 | 0.6 | 0.9 | 1.2 | 0.8 | 0.8 | 0.6 | 0.8 | 0.7 | 0.5 | 0.4 | |
