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Green River (WY) Climate by Month

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 day and night temperature

Depending on the time of the year, temperatures range from very warm to very cold in Green River. Average 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 average around -12°C during these months.

The mean minimum and maximum temperatures throughout the year

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.

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

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.

    Forecast for Green River (WY)

    Fri   Nov 22
    8°C | -7°C
    E 4 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Sat   Nov 23
    7°C | -3°C
    SW 14 km/h
    overcast and no rain

    overcast and no rain

    Sun   Nov 24
    2°C | -7°C
    W 22 km/h
    1.3 mm
    partly cloudy and slight snow

    partly cloudy and slight snow