Poulsbo, WA 98322 Frost Dates
Frost dates for Poulsbo, WA, ZIP 98322
Around 03/29 is the usual last spring frost, about 213 days away. The first fall frost typically arrives around 11/14, about 227 frost-free days later.
Poulsbo sits in USDA Zone 9a (20 to 25°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.
What to do before the first frost
Zone 9a around Poulsbo has about 11 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Poulsbo's last frost
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Poulsbo compares
About 227 days separate Poulsbo's last and first frost, putting it 10,980 of 40,283 ZIP codes nationally. Within WA, it ranks 200 of 700.
Learn more
the frost range explains how to read the range around Poulsbo's dates instead of trusting one, and local microclimates explains what one yard in Poulsbo can differ from the 98322 normal.