A boat in Washington is laid up for about 5 months a year at Spokane, and the median first 32°F night arrives October 12 at Spokane (NOAA 1991-2020). 93 boat storage facilities are listed in Washington, 38 with indoor or climate-controlled space.
| Month | Seattle high / low | boat | Spokane snow | Spokane high / low | boat |
|---|---|---|---|---|---|
| Jan | 48° / 38° | laid up | 12.3 in | 35° / 25° | laid up |
| Feb | 50° / 38° | laid up | 7.8 in | 40° / 26° | laid up |
| Mar | 54° / 40° | launch or haul-out | 3.9 in | 49° / 32° | laid up |
| Apr | 59° / 43° | launch or haul-out | 0.7 in | 57° / 37° | launch or haul-out |
| May | 66° / 49° | in the water | 0.1 in | 67° / 45° | launch or haul-out |
| Jun | 71° / 53° | in the water | 0.0 in | 74° / 51° | in the water |
| Jul | 77° / 57° | in the water | 0.0 in | 84° / 58° | in the water |
| Aug | 78° / 57° | in the water | 0.0 in | 84° / 57° | in the water |
| Sep | 72° / 54° | in the water | 0.1 in | 74° / 49° | in the water |
| Oct | 61° / 47° | launch or haul-out | 0.5 in | 58° / 38° | launch or haul-out |
| Nov | 52° / 41° | launch or haul-out | 6.2 in | 42° / 30° | laid up |
| Dec | 47° / 37° | laid up | 13.8 in | 34° / 24° | laid up |
Boat column rule: in the water at a 65°F high and 45°F low or warmer; launch or haul-out from a 52°F high; laid up below.
By that rule a boat at Seattle has 5 months in the water (May to September), 4 of launch or haul-out and 3 laid up. By that rule a boat at Spokane has 4 months in the water (June to September), 3 of launch or haul-out and 5 laid up.
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 engine block, raw-water passages, outdrive and plumbing.
93 live listings in 26 cities; by listed type: 38 indoor, 24 covered, 78 outdoor and 1 wet-slip (types overlap). No Washington boat storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Boatworld Marinas | Seattle | indoor, outdoor, covered | security cameras, gated entry | Jet Ski |
| Narrows Marina | Tacoma | indoor, outdoor, covered | Jet Ski | |
| U-Park-It NW | Vancouver | indoor, outdoor, covered | Jet Ski | |
| The Stor-House Self Storage - Renton, WA | Renton | indoor, outdoor | ||
| Guy RV & Boat Storage | Renton | indoor, outdoor | ||
| Spokane Boat Storage | Spokane | indoor, outdoor, covered | Jet Ski | |
| Des Moines Way Self Storage | Seattle | indoor, outdoor | ||
| Safegard Self Storage | Bellevue | indoor, outdoor | ||
| Whit's Mobile Marine | Redmond | indoor, outdoor | ||
| Seattle Boat Company | Bellevue | indoor, outdoor, covered | Jet Ski | |
| Express Storage Everett | Everett | indoor, outdoor, covered | Jet Ski | |
| Hylebos Marina | Tacoma | indoor, outdoor, covered | Jet Ski | |
| Flounder Beach Yacht Club | Anacortes | outdoor | ||
| Lewis River RV & Boat Storage | Woodland | outdoor | RV | |
| Twin Bridges Marina | Mount Vernon | outdoor | ||
| Kitsap Marina | Port Orchard | outdoor | ||
| Herb Beck Marina | Quilcene | outdoor | ||
| Sudden Valley Marina | Sunnyside | outdoor | ||
| Olympic View Marina | Seabeck | outdoor | ||
| Port Townsend Boat Haven | Port Townsend | outdoor |
| City | Boat Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Seattle | 42 | 12 | 0 | 27 |
| Vancouver | 10 | 8 | 0 | 10 |
| Bainbridge Island | 8 | 0 | 0 | 8 |
| Bellevue | 5 | 3 | 0 | 5 |
| Tacoma | 4 | 4 | 0 | 4 |
| Everett | 3 | 3 | 0 | 3 |
| Renton | 2 | 2 | 0 | 2 |
| Anacortes | 1 | 0 | 0 | 1 |
| Brownsville | 1 | 0 | 0 | 1 |
| Camas | 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 boat rule Seattle stays in the water through September and Spokane through September, then 4 months of launch or haul-out follow at Seattle. 38 Washington listings offer indoor or climate-controlled space.
3 at Seattle (October to April) and 5 at Spokane (October to May), plus 4 and 3 months of launch or haul-out. Those laid up months hold 44.0 of the 45.4 inches of snow Spokane averages a year (97%), which is the load on a cover or carport roof. At Seattle a boat is in the water from May to September (5 months), against 4 at Spokane.
Of 93 live Washington listings, 38 list indoor space and 0 climate-controlled units, against 78 outdoor and 24 covered. By city: Seattle (42 listed, 12 indoor), Vancouver (10 listed, 8 indoor), Bainbridge Island (8 listed, 0 indoor) and Bellevue (5 listed, 3 indoor). Most indoor listings: Seattle (12), Vancouver (8) and Tacoma (4). Ask whether indoor means heated; listings span 26 cities in all.
At Spokane, 5 months average a low at or below 32°F, all of them laid up months by our boat 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 laid up for a boat.
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 May the first month in the water at Seattle and June at Spokane. That month Seattle averages a 48.7°F low and a 66.3°F high. Reverse each winterization step first.
Washington boat storage listings span 26 cities, led by Seattle (42 listed), Vancouver (10 listed), Bainbridge Island (8 listed), Bellevue (5 listed) and Tacoma (4 listed). For outdoor winter parking, Seattle (27 outdoor) and Vancouver (10 outdoor) lead. Statewide, 78 list outdoor, 24 covered and 38 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).