Custer, South Dakota, gets 19 inches of rain per year. The US average is 37. Snowfall is 49 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 83.
On average, there are 226 sunny days per year in Custer, South Dakota. The July high is around 80 degrees Fahrenheit, which is the hottest. The January low is 9 degrees Fahrenheit which is the recorded coldest. The Annual high temperature here is 56.1 degrees Fahrenheit and the low average temperature is 34.1 degrees Fahrenheit. December to March-the weather is quite cold with April marking the onset of summer and getting hotter in the months of May and June and finally reaching the peak in July. With the onset of winter in August, October and November stay pleasant with December becoming the coolest.
The best time to visit Custer is in Late August or September, as the heat of July completely cools down and the on-set of winter just begins offering you the perfect climate for all your activities.
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