Casper (WY) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Casper (Wyoming). The numbers are calculated over a 30-year period to provide a reliable average.
- Casper has dry periods in January, February, August, November and December.
- On average, May is the wettest month with 74 mm of precipitation.
- On average, November is the driest month with 11 mm of precipitation.
- The average amount of annual precipitation is 360 mm.
Current rainfall in Casper (WY)
broken clouds and no rain
broken clouds and no rain
overcast and chance of slight sleet