Climate almanac

Riverton

Wyoming, United States · 43.02°, -108.38°

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What is the climate like in Riverton?

The best time to visit Riverton is typically June – September, with trip comfort peaking in July (8.7/10). Riverton is warmest in July, when daily highs average 89°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 December; the year sees roughly 15 in (389 mm) of precipitation.

  • Best time to visitJune – September — comfort peaks in July (8.7/10)
  • Warmest monthJuly — average high 89°F (31°C)
  • Coolest monthJanuary — average low 11°F (-12°C)
  • Wettest monthMay (2.9 in (73 mm))
  • Driest monthDecember (0.7 in (17 mm))
  • Annual precipitation15 in (389 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromRiverton, 1 km away (1907-2026)