Depoe Bay, OR 97369 Frost Dates
Depoe Bay, OR: when does the frost end?
Typically, the last spring freeze lands around 03/12, roughly 196 days out. Fall's first freeze usually shows up around 12/10, roughly 271 days after the last spring frost.
Zone 9a (20 to 25°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 Depoe Bay, not a forecast for this year.
Stretching the season past the first frost
With roughly 15 weeks until Depoe Bay's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/12 isn't a guarantee
03/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Depoe Bay against the rest of the dataset
Depoe Bay's growing season runs about 271 days, ranking 5,453 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 35 of 463.
Learn more
Before leaning on 97369's figures: the frost range explains how to read the range around Depoe Bay's dates instead of trusting one, while local microclimates explains what one yard in Depoe Bay can differ from the 97369 normal.