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Climate in Thermopolis (Wyoming), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

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

Weather Forecasts for Thermopolis (WY)

Tue   Apr 30
14°C | 3°C
W 25 km/h
partly cloudy and no rain

partly cloudy and no rain

Wed   May 01
10°C | 1°C
N 14 km/h
1.3 mm
partly cloudy and  chance of rain

partly cloudy and chance of rain

Thu   May 02
10°C | 0°C
SW 7 km/h
partly cloudy and no rain

partly cloudy and no rain

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

During the months of May 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 Thermopolis?
    The hottest season / summer takes place in June, July, August and September.
  • Does Thermopolis have a dry season?
    Yes, the months of January, February, July, August, November and December are very dry.
  • Which is the warmest month in Thermopolis?
    July has an average maximum temperature of 33°C and is the warmest month of the year.
  • Which is the coldest month in Thermopolis?
    The coldest month is December with an average maximum temperature of 1°C.
  • Which is the wettest month in Thermopolis?
    May tops the wettest month list with 77 mm of rainfall.
  • Which is the driest month in Thermopolis?
    January is the driest month with 9 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.