An RV in Washington is winterized for about 3 months a year at Spokane, and the median first 32°F night arrives October 12 at Spokane (NOAA 1991-2020). 64 RV & motorhome storage facilities are listed in Washington, 11 with indoor or climate-controlled space.
| Month | Seattle high / low | RV | Spokane snow | Spokane high / low | RV |
|---|---|---|---|---|---|
| Jan | 48° / 38° | shoulder trips | 12.3 in | 35° / 25° | winterized |
| Feb | 50° / 38° | shoulder trips | 7.8 in | 40° / 26° | winterized |
| Mar | 54° / 40° | shoulder trips | 3.9 in | 49° / 32° | shoulder trips |
| Apr | 59° / 43° | camping | 0.7 in | 57° / 37° | shoulder trips |
| May | 66° / 49° | camping | 0.1 in | 67° / 45° | camping |
| Jun | 71° / 53° | camping | 0.0 in | 74° / 51° | camping |
| Jul | 77° / 57° | camping | 0.0 in | 84° / 58° | camping |
| Aug | 78° / 57° | camping | 0.0 in | 84° / 57° | camping |
| Sep | 72° / 54° | camping | 0.1 in | 74° / 49° | camping |
| Oct | 61° / 47° | camping | 0.5 in | 58° / 38° | shoulder trips |
| Nov | 52° / 41° | camping | 6.2 in | 42° / 30° | shoulder trips |
| Dec | 47° / 37° | shoulder trips | 13.8 in | 34° / 24° | 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 Seattle has 8 months camping (April to November) and 4 of shoulder trips. By that rule an RV at Spokane has 5 months camping (May to September), 4 of shoulder trips and 3 winterized.
Washington is hard-freeze country: Spokane logs about 132.0 nights at or below 32°F and 33.7 days that never thaw, enough to freeze any water left in the water lines, pump, water heater and toilet valve.
64 live listings in 43 cities; by listed type: 11 indoor, 11 covered and 57 outdoor (types overlap). No Washington RV & motorhome storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| River Valley RV-Boat Storage | Spokane Valley | indoor, outdoor, covered | Trailer | |
| Extra Space Storage - Spokane Valley | Spokane Valley | indoor, outdoor, covered | Trailer | |
| Clickit RV & Self Storage | Spokane | indoor, outdoor, covered | Trailer | |
| All Season's Storage | Spokane | indoor, outdoor, covered | security cameras, gated entry | Trailer |
| Seahawk State Storage | Otis Orchards | indoor, outdoor, covered | Trailer | |
| RV Storage Vancouver | Ridgefield | indoor, outdoor, covered | Trailer | |
| Summit Heated Self Storage | Tacoma | indoor, outdoor, covered | Trailer | |
| Issaquah Village RV Park | Issaquah | outdoor | ||
| Conestoga Quarters RV Park | Port Angeles | outdoor | ||
| Lighthouse by the Bay RV Resort | Birch Bay | outdoor | ||
| Peaceful Pines Campground | Cheney | outdoor | ||
| Liberty Lake RV Campground | Liberty Lake | outdoor | ||
| Hoquiam River RV Park | Hoquiam | outdoor | ||
| Tall Chief Campground | Fall City | outdoor | ||
| Lake Sawyer Resort | Black Diamond | outdoor | ||
| East Vancouver RV and Boat Storage | Vancouver | outdoor | Boat | |
| Echos of the Sea | Copalis | outdoor | ||
| Copalis Beach Resort | Copalis | outdoor | ||
| Elma RV Park | Elma | outdoor | ||
| Ocean City RV Resort | Ocean City | outdoor |
| City | RV & Motorhome Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Seattle | 7 | 0 | 0 | 0 |
| Spokane | 5 | 5 | 0 | 5 |
| Copalis | 3 | 0 | 0 | 3 |
| Ocean City | 3 | 0 | 0 | 3 |
| Spokane Valley | 3 | 3 | 0 | 3 |
| Vancouver | 3 | 0 | 0 | 3 |
| Birch Bay | 2 | 0 | 0 | 2 |
| Chehalis | 2 | 0 | 0 | 2 |
| Republic | 2 | 0 | 0 | 2 |
| Anacortes | 1 | 0 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is November 23 at Seattle and October 12 at Spokane; winterize by September 28, two weeks ahead of the earlier date. By our RV rule Seattle stays camping through November and Spokane through September, then 4 months of shoulder trips follow at Seattle. 11 Washington listings offer indoor or climate-controlled space.
None at Seattle and 3 at Spokane (October to April), plus 4 and 4 months of shoulder trips. Those winterized months hold 33.9 of the 45.4 inches of snow Spokane averages a year (75%), which is the load on a cover or carport roof. At Seattle an RV is camping from April to November (8 months), against 5 at Spokane.
Of 64 live Washington listings, 11 list indoor space and 0 climate-controlled units, against 57 outdoor and 11 covered. By city: Seattle (7 listed, 0 indoor), Spokane (5 listed, 5 indoor), Copalis (3 listed, 0 indoor) and Ocean City (3 listed, 0 indoor). Most indoor listings: Spokane (5) and Spokane Valley (3). Ask whether indoor means heated; listings span 43 cities in all.
At Spokane, 5 months average a low at or below 32°F: 3 winterized and 2 shoulder trips or camping by our RV rule. Spokane logs 132.0 nights at or below 32°F and 2.2 at or below 0°F a year; December, the coldest month, averages 24.3°F and is winterized for an RV. Drain or re-protect the RV after any outing in those 2 months.
After the last frost. The median last 32°F night is March 2 at Seattle and April 26 at Spokane; the last 28°F hard freeze comes around February 4 and April 6. Our rule makes April the first month camping at Seattle and May at Spokane. That month Seattle averages a 43.3°F low and a 59.3°F high. Reverse each winterization step first.
Washington RV & motorhome storage listings span 43 cities, led by Seattle (7 listed), Spokane (5 listed), Copalis (3 listed), Ocean City (3 listed) and Spokane Valley (3 listed). For outdoor winter parking, Spokane (5 outdoor) and Copalis (3 outdoor) lead. Statewide, 57 list outdoor, 11 covered and 11 indoor or climate-controlled spaces. Compare the cities nearest you before October 12.
NOAA NCEI Climate Normals 1991-2020 (USW00024233, USW00024157); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).