Nooksack, WA 98227 Frost Dates
98227, near Nooksack, WA: the frost window
The last spring frost here typically falls around 04/24, about 239 days from today. Fall's first freeze usually shows up around 10/29, roughly 190 days after the last spring frost.
Nooksack 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
Nooksack's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/24 isn't a guarantee
04/24 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 05/09 and only about 1 year in 10 sees frost after that.
Nooksack against the rest of the dataset
About 190 days separate Nooksack's last and first frost, putting it 21,208 of 40,283 ZIP codes nationally. Within WA, it ranks 400 of 700.
Learn more
Two guides worth reading on 98227: zone vs. frost date, on why Zone 8b and Nooksack's frost date answer different questions, and the frost range, on how to read the range around Nooksack's dates instead of trusting one.