When to plant Winter squash in Washington
In fall, from June 1 – July 1 in Airway Heights to July 15 – Aug 15 in Port Townsend.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Aberdeen | — | June 20 – July 20 |
| Airway Heights | — | June 1 – July 1 |
| Anacortes | — | July 1 – Aug 1 |
| Arlington | — | June 1 – July 1 |
| Auburn | — | June 20 – July 20 |
| Bainbridge Island | — | June 20 – July 20 |
| Battle Ground | — | June 1 – July 1 |
| Bellevue | — | July 1 – Aug 1 |
| Bellingham | — | June 10 – July 10 |
| Bonney Lake | — | June 10 – July 10 |
| Bothell | — | July 1 – Aug 1 |
| Bremerton | — | June 20 – July 20 |
| Burien | — | July 1 – Aug 1 |
| Burlington | — | June 10 – July 10 |
| Camas | — | July 1 – Aug 1 |
| Centralia | — | June 10 – July 10 |
| Cheney | — | Not listed |
| Covington | — | June 1 – July 1 |
| Des Moines | — | July 1 – Aug 1 |
| East Wenatchee | — | June 10 – July 10 |
| Edgewood | — | June 20 – July 20 |
| Edmonds | — | July 1 – Aug 1 |
| Ellensburg | — | June 1 – 15 |
| Enumclaw | — | June 10 – July 10 |
| Everett | — | June 10 – July 10 |
| Federal Way | — | June 20 – July 20 |
| Ferndale | — | June 10 – July 10 |
| Fife | — | June 20 – July 20 |
| Gig Harbor | — | July 1 – Aug 1 |
| Grandview | — | June 1 – July 1 |
| Issaquah | — | July 1 – Aug 1 |
| Kelso | — | June 20 – July 20 |
| Kenmore | — | July 1 – Aug 1 |
| Kennewick | — | June 10 – July 10 |
| Kent | — | June 20 – July 20 |
| Kirkland | — | July 1 – Aug 1 |
| Lacey | — | June 1 – July 1 |
| Lake Forest Park | — | July 1 – Aug 1 |
| Lake Stevens | — | June 10 – July 10 |
| Lakewood | — | July 1 – Aug 1 |
| Liberty Lake | — | June 1 – July 1 |
| Longview | — | June 20 – July 20 |
| Lynden | — | June 1 – July 1 |
| Lynnwood | — | July 1 – Aug 1 |
| Maple Valley | — | June 1 – July 1 |
| Marysville | — | June 10 – July 10 |
| Mercer Island | — | July 1 – Aug 1 |
| Mill Creek | — | July 1 – Aug 1 |
| Monroe | — | June 1 – July 1 |
| Moses Lake | — | June 1 – July 1 |
| Mount Vernon | — | June 10 – July 10 |
| Mountlake Terrace | — | July 1 – Aug 1 |
| Mukilteo | — | July 1 – Aug 1 |
| Newcastle | — | July 1 – Aug 1 |
| Oak Harbor | — | June 20 – July 20 |
| Olympia | — | June 1 – July 1 |
| Pasco | — | June 1 – July 1 |
| Port Angeles | — | July 1 – Aug 1 |
| Port Orchard | — | June 20 – July 20 |
| Port Townsend | — | July 15 – Aug 15 |
| Poulsbo | — | June 20 – July 20 |
| Pullman | — | June 1 – 15 |
| Puyallup | — | June 10 – July 10 |
| Redmond | — | July 1 – Aug 1 |
| Renton | — | July 1 – Aug 1 |
| Richland | — | June 1 – July 1 |
| Ridgefield | — | June 1 – July 1 |
| Sammamish | — | June 20 – July 20 |
| SeaTac | — | July 1 – Aug 1 |
| Seattle | — | July 1 – Aug 1 |
| Sedro-Woolley | — | June 20 – July 20 |
| Shelton | — | June 1 – July 1 |
| Shoreline | — | July 1 – Aug 1 |
| Snohomish | — | June 10 – July 10 |
| Snoqualmie | — | June 20 – July 20 |
| Spokane | — | June 1 – July 1 |
| Spokane Valley | — | June 1 – July 1 |
| Sumner | — | June 10 – July 10 |
| Sunnyside | — | June 1 – July 1 |
| Tacoma | — | June 20 – July 20 |
| Tukwila | — | July 1 – Aug 1 |
| Tumwater | — | June 1 – July 1 |
| University Place | — | July 1 – Aug 1 |
| Vancouver | — | June 20 – July 20 |
| Walla Walla | — | June 10 – July 10 |
| Washougal | — | July 1 – Aug 1 |
| Wenatchee | — | June 10 – July 10 |
| West Richland | — | June 1 – July 1 |
| Woodinville | — | July 1 – Aug 1 |
| Yakima | — | June 1 – July 1 |
| Yelm | — | June 1 – July 1 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for winter squash.