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Climate in Gillette (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 Gillette (WY)

Tue   Apr 30
12°C | 2°C
NW 40 km/h
broken clouds and no rain

broken clouds and no rain

Wed   May 01
13°C | 0°C
N 29 km/h
2.5 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

Thu   May 02
12°C | -1°C
W 25 km/h
7.7 mm
broken clouds and  chance of sleet

broken clouds and chance of sleet

The best time of year to visit Gillette 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 Gillette?
    The hottest season / summer takes place in June, July, August and September.
  • Does Gillette have a dry season?
    Yes, the months of January, February, November and December are very dry.
  • When is winter in Gillette?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Gillette?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Gillette?
    The coldest month is December with an average maximum temperature of 1°C.
  • Which is the wettest month in Gillette?
    May tops the wettest month list with 101 mm of rainfall.
  • Which is the driest month in Gillette?
    January is the driest month with 13 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.