Average Snowfall in Keystone, SD
59.3"
inches per year
Moderate Snow Area
Elevation: 4,715 ft
Based on the NOAA 1991–2020 Climate Normal — the official 30-year average of a typical winter, not any single season — from the nearest comparable-elevation weather station about 3 miles away.
Keystone Snowfall by Month
Snow season in Keystone typically runs from October through May, peaking in April with about 13.1" of snow.
Oct4.9"
Nov6.4"
Dec6.6"
Jan7.2"
Feb8.9"
Mar9.6"
Apr13.1"
May1.5"
Jun0.2"
Jul–
Aug–
Sep0.9"
Average monthly snowfall, NOAA 1991–2020 Climate Normals.
What to Expect
That is well above the US average annual snowfall of 28". At 59.3" per year, a solid snow shovel and windshield cover will get you through most storms. Keep ice melt and a scraper in the car.
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Snow in South Dakota
| City | Annual Snow |
|---|---|
| Deadwood | 183.9" |
| Lead | 183.9" |
| Saint Onge | 70.5" |
| Spearfish | 70.5" |
| Hill City | 66.6" |
| Nemo | 60.9" |
| Astoria | 60.7" |
| Brandt | 60.7" |
| Clear Lake | 60.7" |
| Estelline | 60.7" |
| Gary | 60.7" |
| Goodwin | 60.7" |
| Toronto | 60.7" |
| Keystone | 59.3" |
| Marvin | 58.6" |
| Ortley | 58.6" |
| Summit | 58.6" |
| Twin Brooks | 58.6" |
| Faith | 55.5" |
| Rapid City | 53.7" |
| Reva | 51.2" |
| Buffalo | 51.2" |
| Redig | 51.2" |
| Wilmot | 51" |
| Camp Crook | 50.5" |
| Okreek | 50.3" |
| Wood | 50.3" |
| Ellsworth Afb | 48.5" |
| Box Elder | 48.5" |
| Fort Meade | 47.6" |
| Sturgis | 47.6" |
| Whitewood | 47.6" |
| Custer | 45.9" |
| Pringle | 45.9" |
| Sioux Falls | 45.3" |
| Huron | 44.4" |
| Aberdeen | 42.7" |
| Belle Fourche | 42.2" |
| Watertown | 41.1" |
| Kranzburg | 41.1" |
| Yankton | 38.1" |
| Waubay | 35.6" |
Snowfall Near Keystone
| City | Distance | Annual Snow |
|---|---|---|
| Hill City, SD | 10 mi | 66.6" |
| Rapid City, SD | 16 mi | 53.7" |
| Custer, SD | 16 mi | 45.9" |
| Pringle, SD | 21 mi | 45.9" |
| Box Elder, SD | 23 mi | 48.5" |