Cannon Beach, OR 97145 Frost Dates
Frost dates for Cannon Beach, OR, ZIP 97145
Around 04/02 is the usual last spring frost, about 217 days away. The first fall frost typically arrives around 11/12, about 223 frost-free days later.
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 Cannon Beach, not a forecast for this year.
What to do before the first frost
Zone 9a around Cannon Beach 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.
How much risk comes with planting early here
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cannon Beach compares
At roughly 223 frost-free days, Cannon Beach places 12,078 of 40,283 ZIP codes in this dataset. Within OR, it ranks 165 of 463.
Learn more
the frost range explains how to read the range around Cannon Beach's dates instead of trusting one, and local microclimates explains what one yard in Cannon Beach can differ from the 97145 normal.