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Green River (WY) Weather and Climate: A Comprehensive Guide

The temperature in Green River can vary greatly throughout the year. The temperatures shift from very warm to very cold. The area is known for its low rain/snowfall. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very warm to very cold in Green River. Average maximum daytime temperatures range from a very warm 30°C in July, the warmest time of the year, to a very cold -0°C during cooler months like January.

At night, temperatures typically drop to an average of around -12°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Green River has a dry climate with very low precipitation, averaging 240 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, May receives moderate rainfall, averaging 44 mm of precipitation, recorded across 9 rainy days. In contrast, the drier season, January brings less snowfall, with 7.1 mm over 5 snowy days. For more details, please visit our Green River Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Green River (WY)

Sun   Dec 22
6°C | -7°C
W 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Dec 23
5°C | -3°C
W 6 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
4°C | -5°C
NE 1 m/s
broken clouds and no rain

broken clouds and no rain

The best time of year to visit Green River in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Green River?
    The hottest season / summer takes place in June, July, August and September.
  • When is winter in Green River?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Green River?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Green River?
    The coldest month is January with an average maximum temperature of -0°C.
  • Which is the wettest month in Green River?
    May tops the wettest month list with 44 mm of rainfall.
  • Which is the driest month in Green River?
    January is the driest month with 7 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.