Clatskanie, OR 97016 Frost Dates
Clatskanie, OR: when does the frost end?
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/24, roughly 184 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 Clatskanie, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Clatskanie's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 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.
Clatskanie against the rest of the dataset
About 184 days separate Clatskanie's last and first frost, putting it 23,576 of 40,283 ZIP codes nationally. Within OR, it ranks 292 of 463.
Learn more
Before leaning on 97016's figures: the frost range explains how to read the range around Clatskanie's dates instead of trusting one, while local microclimates explains what one yard in Clatskanie can differ from the 97016 normal.