An RV in Idaho is winterized for about 5 months a year at Pocatello, and the median first 32°F night arrives September 18 at Pocatello (NOAA 1991-2020). 50 RV & motorhome storage facilities are listed in Idaho, 20 with indoor or climate-controlled space.
| Month | Boise high / low | RV | Pocatello snow | Pocatello high / low | RV |
|---|---|---|---|---|---|
| Jan | 39° / 26° | winterized | 8.5 in | 34° / 17° | winterized |
| Feb | 46° / 29° | shoulder trips | 7.6 in | 39° / 20° | winterized |
| Mar | 56° / 35° | shoulder trips | 4.1 in | 51° / 28° | winterized |
| Apr | 62° / 40° | shoulder trips | 2.6 in | 59° / 33° | shoulder trips |
| May | 72° / 48° | camping | 0.4 in | 69° / 40° | shoulder trips |
| Jun | 81° / 54° | camping | 0.0 in | 79° / 46° | camping |
| Jul | 93° / 62° | camping | 0.0 in | 89° / 52° | camping |
| Aug | 91° / 61° | camping | 0.0 in | 88° / 51° | camping |
| Sep | 80° / 53° | camping | 0.0 in | 77° / 42° | camping |
| Oct | 65° / 42° | camping | 1.2 in | 62° / 33° | shoulder trips |
| Nov | 49° / 32° | shoulder trips | 4.0 in | 46° / 24° | winterized |
| Dec | 39° / 25° | winterized | 10.1 in | 34° / 17° | 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 Boise has 6 months camping (May to October), 4 of shoulder trips and 2 winterized. By that rule an RV at Pocatello has 4 months camping (June to September), 3 of shoulder trips and 5 winterized.
Idaho is hard-freeze country: Pocatello logs about 167.4 nights at or below 32°F and 35.8 days that never thaw, enough to freeze any water left in the water lines, pump, water heater and toilet valve.
50 live listings in 21 cities; by listed type: 20 indoor, 14 covered and 43 outdoor (types overlap). No Idaho RV & motorhome storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Cost Less Storage | Boise | indoor, outdoor | ||
| Ranch RV & Self-Storage | Post Falls | indoor, outdoor, covered | Trailer | |
| Precision RV Storage | Meridian | indoor, outdoor, covered | Trailer | |
| Glacier West Self Storage - Twin Falls | Twin Falls | indoor, outdoor, covered | Trailer | |
| Braniff Recreational Vehicle Storage | Boise | indoor, outdoor | ||
| Eagle Rock RV & Boat Storage | Post Falls | indoor, outdoor, covered | Trailer | |
| Advanced RV & Boat Storage | Coeur D'Alene | indoor, outdoor, covered | security cameras, gated entry | Trailer |
| Elite RV Storage - Nampa | Nampa | indoor, outdoor, covered | Trailer | |
| North Star Outdoor Storage | Meridian | indoor, outdoor, covered | Trailer | |
| Karcher Boat and RV Storage | Nampa | indoor, outdoor, covered | Trailer | |
| Garden City Storage | Garden City | indoor, outdoor | ||
| Silverwood RV Park | Athol | outdoor | ||
| Twin Falls 93 RV Park | Filer | outdoor | ||
| Hi Valley RV Park | Garden City | outdoor | ||
| Aspen Acres RV Park and Golf Course | Ashton | outdoor | ||
| Coeur d'Alene Elks Lodge RV Park | Coeur D'Alene | outdoor | ||
| 5B Boat and RV | St Maries | |||
| Village of Trees RV Resort | Declo | outdoor | ||
| Undercover Boat and RV Storage | St Maries | |||
| Heyburn Riverside RV Park | Heyburn | outdoor |
| City | RV & Motorhome Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Boise | 10 | 8 | 0 | 10 |
| St Maries | 7 | 0 | 0 | 0 |
| Coeur D'Alene | 4 | 0 | 0 | 4 |
| Meridian | 4 | 3 | 0 | 4 |
| Nampa | 3 | 3 | 0 | 3 |
| Post Falls | 3 | 3 | 0 | 3 |
| Athol | 2 | 0 | 0 | 2 |
| Garden City | 2 | 1 | 0 | 2 |
| Marsing | 2 | 0 | 0 | 2 |
| Pocatello | 2 | 0 | 0 | 2 |
NOAA's 1991-2020 median first 32°F night is October 21 at Boise and September 18 at Pocatello; winterize by September 4, two weeks ahead of the earlier date. By our RV rule Boise stays camping through October and Pocatello through September, then 4 months of shoulder trips follow at Boise. 20 Idaho listings offer indoor or climate-controlled space.
2 at Boise (November to April) and 5 at Pocatello (October to May), plus 4 and 3 months of shoulder trips. Those winterized months hold 34.3 of the 38.5 inches of snow Pocatello averages a year (89%), which is the load on a cover or carport roof. At Boise an RV is camping from May to October (6 months), against 4 at Pocatello.
Of 50 live Idaho listings, 20 list indoor space and 0 climate-controlled units, against 43 outdoor and 14 covered. By city: Boise (10 listed, 8 indoor), St Maries (7 listed, 0 indoor), Coeur D'Alene (4 listed, 0 indoor) and Meridian (4 listed, 3 indoor). Most indoor listings: Boise (8), Meridian (3) and Nampa (3). Ask whether indoor means heated; listings span 21 cities in all.
At Pocatello, 5 months average a low at or below 32°F, all of them winterized months by our RV rule. Pocatello logs 167.4 nights at or below 32°F and 8.1 at or below 0°F a year; January, the coldest month, averages 17.1°F and is winterized for an RV.
After the last frost. The median last 32°F night is April 24 at Boise and May 23 at Pocatello; the last 28°F hard freeze comes around April 2 and May 6. Our rule makes May the first month camping at Boise and June at Pocatello. That month Boise averages a 47.5°F low and a 72.3°F high. Reverse each winterization step first.
Idaho RV & motorhome storage listings span 21 cities, led by Boise (10 listed), St Maries (7 listed), Coeur D'Alene (4 listed), Meridian (4 listed) and Nampa (3 listed). For outdoor winter parking, Boise (10 outdoor) and Coeur D'Alene (4 outdoor) lead. Statewide, 43 list outdoor, 14 covered and 20 indoor or climate-controlled spaces. Compare the cities nearest you before September 18.
NOAA NCEI Climate Normals 1991-2020 (USW00024131, USW00024156); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).