Puyallup, WA 98446 Frost Dates
Puyallup, WA: when does the frost end?
Around 04/11 is the usual last spring frost, about 226 days away. Fall's first freeze usually shows up around 10/30, roughly 202 days after the last spring frost.
Puyallup 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 9 weeks until Puyallup's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/11 isn't a guarantee
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Puyallup against the rest of the dataset
About 202 days separate Puyallup's last and first frost, putting it 17,125 of 40,283 ZIP codes nationally. Within WA, it ranks 291 of 700.
Learn more
Before leaning on 98446's figures: zone vs. frost date explains why Zone 8b and Puyallup's frost date answer different questions, while the frost range explains how to read the range around Puyallup's dates instead of trusting one.