Gillette (WY) Weather and Climate: A Comprehensive Guide
The climate in Gillette is marked by big temperature swings throughout the year.
Temperatures range from very warm during the warmest months
to very cold in the cooler months.
It typically sees modest rain/snowfall throughout the year.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
In Gillette, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 31°C in July to a very cold 1°C in the coolest month, December.
Nights are cooler, with lows often dropping to around -10°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Gillette typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 425 mm. The climate in Gillette shows significant variation throughout the year. Expect high rainfall in May, with an average of 101 mm of precipitation over 13 rainy days. In contrast, January offers drier and sunnier days, with around 13 mm of snowfall over 7 snowy days. For more details, please visit our Gillette Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
broken clouds and no rain broken clouds and no rain partly cloudy and no rainForecast for Gillette (WY)
6 m/s
4 m/s
6 m/s
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:
The hottest season / summer takes place in June, July, August and September.
Yes, the months of January, February, November and December are very dry.
The coldest season / winter is in the following months: January, February and December.
July has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 1°C.
May tops the wettest month list with 101 mm of rainfall.
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.
