Lynnwood, WA 98206 Frost Dates
Lynnwood, WA: when does the frost end?
Around 03/09 is the usual last spring frost, about 193 days away. Fall's first freeze usually shows up around 11/17, roughly 250 days after the last spring frost.
Lynnwood sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 12 weeks until Lynnwood'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
03/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/29 and only about 1 year in 10 sees frost after that.
Lynnwood against the rest of the dataset
About 250 days separate Lynnwood's last and first frost, putting it 7,455 of 40,283 ZIP codes nationally. Within WA, it ranks 96 of 700.
Learn more
Before leaning on 98206's figures: zone vs. frost date explains why Zone 8b and Lynnwood's frost date answer different questions, while the frost range explains how to read the range around Lynnwood's dates instead of trusting one.