Climate almanac
Green River
Wyoming, United States · 41.53°, -109.47°
What is the climate like in Green River?
The best time to visit Green River is typically June – September, with trip comfort peaking in August (8.9/10). Green River is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 11°F (-12°C). The wettest month is typically May and the driest is July; the year sees roughly 12 in (295 mm) of precipitation.
- Best time to visitJune – September — comfort peaks in August (8.9/10)
- Warmest monthJuly — average high 88°F (31°C)
- Coolest monthJanuary — average low 11°F (-12°C)
- Wettest monthMay (1.7 in (43 mm))
- Driest monthJuly (0.3 in (7 mm))
- Annual precipitation12 in (295 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromGreen Rvr, 1 km away (1897-2026)