A car in South Dakota is garaged for about 7 months a year at Rapid City, and the median first 32°F night arrives October 1 at Rapid City (NOAA 1991-2020). 3 classic & exotic car storage facilities are listed in South Dakota, 2 with indoor or climate-controlled space.
| Month | Sioux Falls high / low | car | Rapid City snow | Rapid City high / low | car |
|---|---|---|---|---|---|
| Jan | 27° / 9° | garaged | 5.3 in | 36° / 13° | garaged |
| Feb | 32° / 13° | garaged | 7.7 in | 38° / 14° | garaged |
| Mar | 45° / 24° | garaged | 8.4 in | 48° / 23° | garaged |
| Apr | 59° / 36° | garaged | 10.1 in | 57° / 31° | garaged |
| May | 71° / 48° | driving | 1.5 in | 67° / 42° | dry-day drives |
| Jun | 81° / 59° | driving | 0.0 in | 78° / 52° | driving |
| Jul | 85° / 63° | driving | 0.0 in | 86° / 59° | driving |
| Aug | 83° / 61° | driving | 0.0 in | 85° / 56° | driving |
| Sep | 76° / 52° | driving | 0.1 in | 76° / 46° | driving |
| Oct | 61° / 38° | dry-day drives | 3.0 in | 60° / 34° | garaged |
| Nov | 45° / 25° | garaged | 5.7 in | 47° / 22° | garaged |
| Dec | 32° / 13° | garaged | 6.7 in | 37° / 14° | garaged |
Car column rule: driving at a 36°F low and under 0.5 in of snow; dry-day drives from a 42°F high with under 3 in of snow; garaged otherwise.
By that rule a car at Sioux Falls has 5 months driving (May to September), 1 of dry-day drives and 6 garaged. By that rule a car at Rapid City has 4 months driving (June to September), 1 of dry-day drives and 7 garaged.
South Dakota is severe-freeze country for a car: Sioux Falls averages 8.5°F on January nights and about 24.9 nights a year at or below 0°F, so full winterization is mandatory and heated space is worth pricing.
3 live listings in 2 cities; by listed type: 2 indoor, 2 covered and 3 outdoor (types overlap). No South Dakota classic & exotic car storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Five Star Storage - Sioux Falls | Sioux Falls | indoor, outdoor, covered | Motorcycle | |
| Sioux Self Storage | Sioux Falls | indoor, outdoor, covered | Motorcycle | |
| FOX DEN STORE-IT, LLC | Rapid City | outdoor | RV, Boat, Motorcycle |
| City | Classic & Exotic Car Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Sioux Falls | 2 | 2 | 0 | 2 |
| Rapid City | 1 | 0 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is October 6 at Sioux Falls and October 1 at Rapid City; winterize by September 17, two weeks ahead of the earlier date. By our car rule Sioux Falls stays driving through September and Rapid City through September, then 1 month of dry-day drives follow at Sioux Falls. 2 South Dakota listings offer indoor or climate-controlled space.
6 at Sioux Falls (October to April) and 7 at Rapid City (October to May), plus 1 and 1 months of dry-day drives. Those garaged months hold 46.9 of the 48.5 inches of snow Rapid City averages a year (97%), which is the load on a cover or carport roof. At Sioux Falls a car is driving from May to September (5 months), against 4 at Rapid City.
Of 3 live South Dakota listings, 2 list indoor space and 0 climate-controlled units, against 3 outdoor and 2 covered. By city: Sioux Falls (2 listed, 2 indoor) and Rapid City (1 listed, 0 indoor). Most indoor listings: Sioux Falls (2). Ask whether indoor means heated; listings span 2 cities in all.
At Sioux Falls, 5 months average a low at or below 32°F, all of them garaged months by our car rule. Sioux Falls logs 162.0 nights at or below 32°F and 24.9 at or below 0°F a year; January, the coldest month, averages 8.5°F and is garaged for a car.
After the last frost. The median last 32°F night is May 1 at Sioux Falls and May 12 at Rapid City; the last 28°F hard freeze comes around April 22 and May 2. Our rule makes May the first month driving at Sioux Falls and June at Rapid City. That month Sioux Falls averages a 47.5°F low and a 70.8°F high. Reverse each winterization step first.
South Dakota classic & exotic car storage listings span 2 cities, led by Sioux Falls (2 listed) and Rapid City (1 listed). For outdoor winter parking, Sioux Falls (2 outdoor) and Rapid City (1 outdoor) lead. Statewide, 3 list outdoor, 2 covered and 2 indoor or climate-controlled spaces. Compare the cities nearest you before October 1.
NOAA NCEI Climate Normals 1991-2020 (USW00014944, USW00024090); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).