Washougal, WA 97282 Frost Dates
97282, near Washougal, WA: the frost window
The last spring frost here typically falls around 03/16, about 200 days from today. Fall's first freeze usually shows up around 11/20, roughly 250 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Washougal in Zone 9a (20 to 25°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
Washougal's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Washougal's last frost
03/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Washougal against the rest of the dataset
About 250 days separate Washougal's last and first frost, putting it 7,490 of 40,283 ZIP codes nationally. Within WA, it ranks 110 of 700.
Learn more
Two guides worth reading on 97282: local microclimates, on what one yard in Washougal can differ from the 97282 normal, and zone vs. frost date, on why Zone 9a and Washougal's frost date answer different questions.