An ATV or UTV in Wisconsin is parked for winter for about 2 months a year at Green Bay, and the median first 32°F night arrives October 9 at Green Bay (NOAA 1991-2020). 7 ATV & UTV storage facilities are listed in Wisconsin, 0 with indoor or climate-controlled space.
| Month | Milwaukee high / low | ATV or UTV | Green Bay snow | Green Bay high / low | ATV or UTV |
|---|---|---|---|---|---|
| Jan | 31° / 17° | cold or snow riding | 14.3 in | 26° / 11° | parked for winter |
| Feb | 34° / 20° | cold or snow riding | 12.0 in | 29° / 13° | parked for winter |
| Mar | 44° / 29° | cold or snow riding | 8.1 in | 40° / 24° | cold or snow riding |
| Apr | 55° / 38° | trail riding | 4.7 in | 54° / 35° | trail riding |
| May | 67° / 48° | trail riding | 0.0 in | 67° / 46° | trail riding |
| Jun | 77° / 58° | trail riding | 0.0 in | 77° / 56° | trail riding |
| Jul | 82° / 65° | trail riding | 0.0 in | 81° / 60° | trail riding |
| Aug | 80° / 64° | trail riding | 0.0 in | 79° / 58° | trail riding |
| Sep | 74° / 56° | trail riding | 0.0 in | 72° / 50° | trail riding |
| Oct | 61° / 45° | trail riding | 0.3 in | 58° / 40° | trail riding |
| Nov | 48° / 33° | cold or snow riding | 3.1 in | 44° / 29° | cold or snow riding |
| Dec | 36° / 23° | cold or snow riding | 13.1 in | 31° / 18° | cold or snow riding |
ATV column rule: trail riding from a 50°F high; cold or snow riding from 30°F; parked for winter below.
By that rule an ATV or UTV at Milwaukee has 7 months trail riding (April to October) and 5 of cold or snow riding. By that rule an ATV or UTV at Green Bay has 7 months trail riding (April to October), 3 of cold or snow riding and 2 parked for winter.
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 carburetor.
7 live listings in 1 city. No Wisconsin ATV & UTV storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Tuff Shed Milwaukee | Milwaukee | |||
| Donges Bay Mini-Storage | Milwaukee | |||
| All One Storage - North Prairie | Milwaukee | |||
| UNITS Moving and Portable Storage Milwaukee | Milwaukee | |||
| South Milwaukee Self Storage LLC | Milwaukee | |||
| Milwaukee Powersports | Milwaukee | |||
| Ryan Road Storage | Milwaukee |
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 ATV or UTV rule Milwaukee stays trail riding through October and Green Bay through October, then 5 months of cold or snow riding follow at Milwaukee. 0 Wisconsin listings offer indoor or climate-controlled space.
None at Milwaukee and 2 at Green Bay (November to March), plus 5 and 3 months of cold or snow riding. Those parked for winter months hold 26.3 of the 55.6 inches of snow Green Bay averages a year (47%), which is the load on a cover or carport roof. At Milwaukee an ATV or UTV is trail riding from April to October (7 months), against 7 at Green Bay.
Of 7 live Wisconsin listings, 0 list indoor space and 0 climate-controlled units, against 0 outdoor and 0 covered. By city: Milwaukee (7 listed, 0 indoor). No Wisconsin city lists an indoor ATV or UTV space yet. Ask whether indoor means heated; listings span 1 city in all.
At Green Bay, 5 months average a low at or below 32°F: 2 parked for winter and 3 cold or snow riding or trail riding by our ATV or UTV 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 parked for winter for an ATV or UTV. Drain or re-protect the ATV or UTV after any outing in those 3 months.
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 April the first month trail riding at Milwaukee and April at Green Bay. That month Milwaukee averages a 37.8°F low and a 54.7°F high. Reverse each winterization step first.
NOAA NCEI Climate Normals 1991-2020 (USW00014839, USW00014898); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).