North Bend, WA 98083 Frost Dates
North Bend, WA: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 11/01, roughly 193 days after the last spring frost.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for North Bend, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until North Bend's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
North Bend against the rest of the dataset
At roughly 193 frost-free days, North Bend places 19,806 of 40,283 ZIP codes in this dataset. Within WA, it ranks 374 of 700.
Learn more
Before leaning on 98083's figures: local microclimates explains what one yard in North Bend can differ from the 98083 normal, while zone vs. frost date explains why Zone 8b and North Bend's frost date answer different questions.