Sandy, OR 97028 Frost Dates
Frost dates for Sandy, OR, ZIP 97028
The last spring frost here typically falls around 03/14, about 198 days from today. The first fall frost typically arrives around 11/27, about 257 frost-free days later.
Zone 7a (0 to 5°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 Sandy, not a forecast for this year.
What to do before the first frost
Zone 7a around Sandy has about 13 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 Sandy's last frost
03/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/19 and you're betting against frost in roughly 9 years out of 10. 04/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sandy compares
At roughly 257 frost-free days, Sandy places 6,686 of 40,283 ZIP codes in this dataset. Within OR, it ranks 46 of 463.
Learn more
local microclimates explains what one yard in Sandy can differ from the 97028 normal, and zone vs. frost date explains why Zone 7a and Sandy's frost date answer different questions.