A car in Wisconsin is garaged for about 6 months a year at Green Bay, and the median first 32°F night arrives October 9 at Green Bay (NOAA 1991-2020). 20 classic & exotic car storage facilities are listed in Wisconsin, 8 with indoor or climate-controlled space.
| Month | Milwaukee high / low | car | Green Bay snow | Green Bay high / low | car |
|---|---|---|---|---|---|
| Jan | 31° / 17° | garaged | 14.3 in | 26° / 11° | garaged |
| Feb | 34° / 20° | garaged | 12.0 in | 29° / 13° | garaged |
| Mar | 44° / 29° | garaged | 8.1 in | 40° / 24° | garaged |
| Apr | 55° / 38° | dry-day drives | 4.7 in | 54° / 35° | garaged |
| May | 67° / 48° | driving | 0.0 in | 67° / 46° | driving |
| Jun | 77° / 58° | driving | 0.0 in | 77° / 56° | driving |
| Jul | 82° / 65° | driving | 0.0 in | 81° / 60° | driving |
| Aug | 80° / 64° | driving | 0.0 in | 79° / 58° | driving |
| Sep | 74° / 56° | driving | 0.0 in | 72° / 50° | driving |
| Oct | 61° / 45° | driving | 0.3 in | 58° / 40° | driving |
| Nov | 48° / 33° | dry-day drives | 3.1 in | 44° / 29° | garaged |
| Dec | 36° / 23° | garaged | 13.1 in | 31° / 18° | 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 Milwaukee has 6 months driving (May to October), 2 of dry-day drives and 4 garaged. By that rule a car at Green Bay has 6 months driving (May to October) and 6 garaged.
Wisconsin is hard-freeze country: Green Bay logs about 152.3 nights at or below 32°F and 66.3 days that never thaw, enough to freeze any water left in the battery, coolant and washer fluid.
20 live listings in 4 cities; by listed type: 7 indoor, 1 climate-controlled, 6 covered and 7 outdoor (types overlap). No Wisconsin classic & exotic car storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Hansen Storage - Water Street | Milwaukee | indoor, outdoor, covered | Motorcycle | |
| Auto Wreckers Milwaukee Towing & Recycling | Milwaukee | indoor, outdoor, covered | security cameras, gated entry | Motorcycle |
| The Garage Milwaukee | Waukesha | indoor, climate-controlled | Motorcycle | |
| Devon Self Storage - Kenosha | Kenosha | indoor, outdoor, covered | Motorcycle | |
| Storage Depot of Kenosha | Kenosha | indoor, outdoor, covered | Motorcycle | |
| Waukesha Storage | Waukesha | indoor, outdoor, covered | Motorcycle | |
| West Washington Self Storage | Madison | outdoor | RV, Boat, Motorcycle | |
| Milwaukee Collector Car Solutions | Milwaukee | |||
| Appleton Avenue Storage | Milwaukee | |||
| KO Storage | Milwaukee | |||
| DMC Vehicles | Milwaukee | |||
| JWS Classics | Milwaukee | |||
| North Milwaukee Self Storage | Milwaukee | |||
| Timers Car Club | Milwaukee | |||
| StorageMart | Milwaukee | |||
| Whorley Storage | Milwaukee |
| City | Classic & Exotic Car Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Milwaukee | 14 | 2 | 0 | 2 |
| Kenosha | 3 | 3 | 0 | 3 |
| Waukesha | 2 | 2 | 1 | 1 |
| Madison | 1 | 0 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is October 29 at Milwaukee and October 9 at Green Bay; winterize by September 25, two weeks ahead of the earlier date. By our car rule Milwaukee stays driving through October and Green Bay through October, then 2 months of dry-day drives follow at Milwaukee. 8 Wisconsin listings offer indoor or climate-controlled space.
4 at Milwaukee (November to April) and 6 at Green Bay (November to April), plus 2 and 0 months of dry-day drives. Those garaged months hold 55.3 of the 55.6 inches of snow Green Bay averages a year (99%), which is the load on a cover or carport roof. At Milwaukee a car is driving from May to October (6 months), against 6 at Green Bay.
Of 20 live Wisconsin listings, 7 list indoor space and 1 climate-controlled units, against 7 outdoor and 6 covered. By city: Milwaukee (14 listed, 2 indoor), Kenosha (3 listed, 3 indoor), Waukesha (2 listed, 2 indoor) and Madison (1 listed, 0 indoor). Most indoor listings: Kenosha (3), Milwaukee (2) and Waukesha (2). Ask whether indoor means heated; listings span 4 cities in all.
At Green Bay, 5 months average a low at or below 32°F, all of them garaged months by our car rule. Green Bay logs 152.3 nights at or below 32°F and 19.2 at or below 0°F a year; January, the coldest month, averages 11.1°F and is garaged for a car.
After the last frost. The median last 32°F night is April 19 at Milwaukee and April 30 at Green Bay; the last 28°F hard freeze comes around April 6 and April 17. Our rule makes May the first month driving at Milwaukee and May at Green Bay. That month Milwaukee averages a 47.8°F low and a 66.5°F high. Reverse each winterization step first.
Wisconsin classic & exotic car storage listings span 4 cities, led by Milwaukee (14 listed), Kenosha (3 listed), Waukesha (2 listed) and Madison (1 listed). For outdoor winter parking, Kenosha (3 outdoor) and Milwaukee (2 outdoor) lead. Statewide, 7 list outdoor, 6 covered and 8 indoor or climate-controlled spaces. Compare the cities nearest you before October 9.
NOAA NCEI Climate Normals 1991-2020 (USW00014839, USW00014898); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).