FrostDateCheck

North Bend, WA 98015 Frost Dates

When can you plant in North Bend, WA?

Zone 9a

Around 04/23 is the usual last spring frost, about 238 days away. The first fall frost typically arrives around 11/01, about 193 frost-free days later.

The USDA Plant Hardiness Zone Map puts North Bend in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

About 9 weeks of growing season left in North Bend before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.

How North Bend compares

About 193 days separate North Bend's last and first frost, putting it 19,795 of 40,283 ZIP codes nationally. Within WA, it ranks 363 of 700.

Learn more

local microclimates covers what one yard in North Bend can differ from the 98015 normal. zone vs. frost date covers why Zone 9a and North Bend's frost date answer different questions.