Poulsbo, WA 98370 Frost Dates
Poulsbo, WA: when does the frost end?
The last spring frost here typically falls around 03/29, about 213 days from today. Fall's first freeze usually shows up around 11/14, roughly 227 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Poulsbo in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 11 weeks until Poulsbo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Poulsbo against the rest of the dataset
About 227 days separate Poulsbo's last and first frost, putting it 10,982 of 40,283 ZIP codes nationally. Within WA, it ranks 202 of 700.
Learn more
Before leaning on 98370's figures: zone vs. frost date explains why Zone 8b and Poulsbo's frost date answer different questions, while the frost range explains how to read the range around Poulsbo's dates instead of trusting one.