An RV in Illinois is winterized for about 3 months a year at Chicago, and the median first 32°F night arrives October 20 at Springfield (NOAA 1991-2020). 110 RV & motorhome storage facilities are listed in Illinois, 24 with indoor or climate-controlled space.
| Month | Chicago high / low | RV | Chicago snow | Springfield high / low | RV |
|---|---|---|---|---|---|
| Jan | 32° / 19° | winterized | 11.3 in | 36° / 20° | winterized |
| Feb | 36° / 22° | winterized | 10.7 in | 41° / 24° | winterized |
| Mar | 47° / 31° | shoulder trips | 5.5 in | 53° / 33° | shoulder trips |
| Apr | 59° / 40° | camping | 1.3 in | 66° / 43° | camping |
| May | 71° / 51° | camping | 0.0 in | 76° / 54° | camping |
| Jun | 80° / 61° | camping | 0.0 in | 84° / 63° | camping |
| Jul | 85° / 66° | camping | 0.0 in | 87° / 66° | camping |
| Aug | 83° / 65° | camping | 0.0 in | 85° / 64° | camping |
| Sep | 76° / 57° | camping | 0.0 in | 80° / 56° | camping |
| Oct | 63° / 45° | camping | 0.2 in | 67° / 45° | camping |
| Nov | 48° / 34° | shoulder trips | 1.8 in | 53° / 34° | shoulder trips |
| Dec | 37° / 24° | winterized | 7.6 in | 41° / 25° | winterized |
RV column rule: camping at a 40°F low or warmer with highs under 95°F; shoulder trips above a 28°F low; winterized below.
By that rule an RV at Chicago has 7 months camping (April to October), 2 of shoulder trips and 3 winterized. By that rule an RV at Springfield has 7 months camping (April to October), 2 of shoulder trips and 3 winterized.
Illinois is hard-freeze country: Chicago logs about 121.3 nights at or below 32°F and 43.4 days that never thaw, enough to freeze any water left in the water lines, pump, water heater and toilet valve.
110 live listings in 51 cities; by listed type: 24 indoor, 5 covered and 86 outdoor (types overlap). No Illinois RV & motorhome storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Millstadt Self Storage | Millstadt | indoor, outdoor | ||
| Simply Self Storage | Deerfield | indoor, outdoor | ||
| Bryan Kinser Enterprises | Elmhurst | indoor, outdoor | ||
| Perose Parking | South Holland | indoor, outdoor | ||
| Falling Spring Mini Storage | East Saint Louis | indoor, outdoor | ||
| Advantage Self-Storage | Columbia | indoor, outdoor | ||
| U-Stor-It Self Storage - Elmhurst | Elmhurst | indoor, outdoor | ||
| SmartStop Self Storage | Elk Grove Village | indoor, outdoor | ||
| Simply Self Storage | Wheeling | indoor, outdoor | ||
| U-Stor-It Self Storage - Lisle | Lisle | indoor, outdoor | ||
| Storage Sense - Romeoville | Romeoville | indoor, outdoor | ||
| Pro Self Storage | Wilmette | indoor, outdoor | ||
| US Storage Centers | Wilmette | indoor, outdoor | ||
| Advantage Self Storage | Belleville | indoor, outdoor | ||
| AAA Truck Parking | Merrionette Park | indoor, outdoor | ||
| Global Self Storage | Dolton | indoor, outdoor | ||
| Green Machine Towing Storage | Naperville | indoor, outdoor, covered | Trailer | |
| Autotruck Parking Storage | Chicago | indoor, outdoor, covered | security cameras, gated entry | Trailer |
| Pro Cars | Arlington Heights | indoor, outdoor | ||
| A1 Will County Storage | Joliet | indoor, outdoor, covered | security cameras, gated entry | Trailer |
| City | RV & Motorhome Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Chicago | 27 | 1 | 0 | 24 |
| Pawnee | 21 | 0 | 0 | 0 |
| Skokie | 3 | 0 | 0 | 3 |
| Alsip | 2 | 0 | 0 | 2 |
| Bedford Park | 2 | 0 | 0 | 2 |
| Berwyn | 2 | 0 | 0 | 2 |
| Blue Island | 2 | 1 | 0 | 2 |
| Des Plaines | 2 | 0 | 0 | 2 |
| Elmhurst | 2 | 2 | 0 | 2 |
| Harwood Heights | 2 | 0 | 0 | 2 |
NOAA's 1991-2020 median first 32°F night is October 28 at Chicago and October 20 at Springfield; winterize by October 6, two weeks ahead of the earlier date. By our RV rule Chicago stays camping through October and Springfield through October, then 2 months of shoulder trips follow at Chicago. 24 Illinois listings offer indoor or climate-controlled space.
3 at Chicago (November to March) and 3 at Springfield (November to March), plus 2 and 2 months of shoulder trips. Those winterized months hold 29.6 of the 38.4 inches of snow Chicago averages a year (77%), which is the load on a cover or carport roof. At Chicago an RV is camping from April to October (7 months), against 7 at Springfield.
Of 110 live Illinois listings, 24 list indoor space and 0 climate-controlled units, against 86 outdoor and 5 covered. By city: Chicago (27 listed, 1 indoor), Pawnee (21 listed, 0 indoor), Skokie (3 listed, 0 indoor) and Alsip (2 listed, 0 indoor). Most indoor listings: Elmhurst (2), Wilmette (2) and Chicago (1). Ask whether indoor means heated; listings span 51 cities in all.
At Chicago, 4 months average a low at or below 32°F: 3 winterized and 1 shoulder trips or camping by our RV rule. Chicago logs 121.3 nights at or below 32°F and 6.5 at or below 0°F a year; January, the coldest month, averages 18.8°F and is winterized for an RV. Drain or re-protect the RV after any outing in those 1 month.
After the last frost. The median last 32°F night is April 16 at Chicago and April 14 at Springfield; the last 28°F hard freeze comes around April 5 and April 3. Our rule makes April the first month camping at Chicago and April at Springfield. That month Chicago averages a 40.3°F low and a 59.0°F high. Reverse each winterization step first.
Illinois RV & motorhome storage listings span 51 cities, led by Chicago (27 listed), Pawnee (21 listed), Skokie (3 listed), Alsip (2 listed) and Bedford Park (2 listed). For outdoor winter parking, Chicago (24 outdoor) and Skokie (3 outdoor) lead. Statewide, 86 list outdoor, 5 covered and 24 indoor or climate-controlled spaces. Compare the cities nearest you before October 20.
NOAA NCEI Climate Normals 1991-2020 (USW00094846, USW00093822); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).