Casper (WY) Weather and Climate: A Comprehensive Guide
The climate in Casper 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 maintains fairly dry conditions year-round.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
In Casper, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C in July to a very cold 2°C in December.
Nighttime temperatures can drop, with average lows reaching -9°C in December. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Casper typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 360 mm. The seasons in Casper, bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 74 mm of precipitation. This rainfall is distributed across 13 rainy days. In contrast, the driest month, November, experiences much less snow/rainfall, totaling 11 mm over 5 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Casper 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 partly cloudy and no rain partly cloudy and no rainForecast for Casper (WY)
8 m/s
9 m/s
9 m/s
The best time of year to visit Casper in the United States of America
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 and November are very dry.
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 2°C.
May tops the wettest month list with 74 mm of rainfall.
November is the driest month with 11 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.
