Stanwood, WA 98292 Frost Dates
Stanwood, WA: when does the frost end?
Around 04/22 is the usual last spring frost, about 237 days away. Fall's first freeze usually shows up around 10/19, roughly 181 days after the last spring frost.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Stanwood, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Stanwood's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Stanwood's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Stanwood against the rest of the dataset
At roughly 181 frost-free days, Stanwood places 24,486 of 40,283 ZIP codes in this dataset. Within WA, it ranks 432 of 700.
Learn more
Before leaning on 98292's figures: zone vs. frost date explains why Zone 8b and Stanwood's frost date answer different questions, while the frost range explains how to read the range around Stanwood's dates instead of trusting one.