Hanna, WY has a semi-arid climate with hot summers and cold winters. During the summer months, temperatures can reach up to 90°F during the day and drop to 55°F during the night. In the winter, temperatures average at around 30°F but can dip below zero on occasion. Precipitation is relatively low throughout the year; rainfall averages around 13 inches annually while snowfall accumulates to 16 inches each year. Despite its dry climate, Hanna is often sunny and experiences more than 200 days of sunshine each year.
Hanna, Wyoming gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hanna averages 63 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 219 sunny days per year in Hanna. The US average is 205 sunny days.
Hanna gets some kind of precipitation, on average, 72 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 83 degrees
Winter Low: the January low is 13
Rain: averages 12 inches of rain a year
Snow: averages 63 inches of snow a year