Frost dates · 31 cities · zones 7a–9a
Washington frost dates, city by city
Median last spring frost across 31 Washington cities runs from March 2 in Burien to April 29 in Olympia.
| City | Zone | Last frost median | First frost median | Season | Jan → Dec |
|---|---|---|---|---|---|
| Seattle | 9a | Mar 13 | Nov 17 | 247 d | |
| Spokane | 7a | Apr 26 | Oct 12 | 168 d | |
| Tacoma | 8b | Mar 8 | Nov 14 | 250 d | |
| Vancouver | 8b | Mar 29 | Nov 9 | 223 d | |
| Bellevue | 9a | Mar 8 | Nov 23 | 259 d | |
| Kent | 8b | Mar 20 | Nov 10 | 233 d | |
| Everett | 8b | Mar 24 | Nov 2 | 223 d | |
| Spokane Valley | 7a | Apr 26 | Oct 15 | 170 d | |
| Renton | 9a | Mar 13 | Nov 16 | 248 d | |
| Federal Way | 8b | Mar 8 | Nov 14 | 250 d | |
| Yakima | 7a | Apr 8 | Oct 23 | 196 d | |
| Bellingham | 8b | Apr 1 | Nov 2 | 216 d | |
| Kirkland | 9a | Mar 8 | Nov 23 | 259 d | |
| Kennewick | 7b | Mar 28 | Oct 30 | 216 d | |
| Auburn | 8b | Mar 20 | Nov 10 | 233 d | |
| Redmond | 8b | Mar 8 | Nov 23 | 259 d | |
| Pasco | 7b | Mar 28 | Oct 30 | 216 d | |
| Marysville | 8b | Mar 24 | Nov 2 | 223 d | |
| Sammamish | 8b | Mar 30 | Nov 7 | 223 d | |
| Shoreline | 9a | Mar 8 | Nov 23 | 259 d | |
| Richland | 7b | Apr 6 | Oct 24 | 200 d | |
| Lakewood | 8b | Mar 8 | Nov 14 | 250 d | |
| Lacey | 8b | Apr 29 | Oct 14 | 169 d | |
| Olympia | 8b | Apr 29 | Oct 14 | 169 d | |
| Burien | 9a | Mar 2 | Nov 23 | 266 d | |
| Bothell | 8b | Mar 8 | Nov 23 | 259 d | |
| Bremerton | 8b | Mar 29 | Nov 14 | 227 d | |
| Edmonds | 9a | Mar 9 | Nov 17 | 250 d | |
| Puyallup | 8b | Apr 11 | Oct 30 | 202 d | |
| Lynnwood | 9a | Mar 9 | Nov 17 | 250 d | |
| Lake Stevens | 8b | Mar 24 | Nov 2 | 223 d |
Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.
All states →Build a plan from your ZIP →Earliest: Burien (Mar 2) · Latest: Olympia (Apr 29)