Custer, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Custer averages 55 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 226 sunny days per year in Custer. The US average is 205 sunny days.
Custer gets some kind of precipitation, on average, 93 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.
Summer High: the July high is around 80 degrees
Winter Low: the January low is 16
Rain: averages 20 inches of rain a year
Snow: averages 55 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Custer is 6.7 (10=best), which means it is less comfortable than most places in South Dakota.
6.7 / 10
August, July and June are the most pleasant months in Custer, while February and December are the least comfortable months.