Aberdeen, ID 83277 Frost Dates
When can you plant in Aberdeen, ID?
Typically, the last spring freeze lands around 05/21, roughly 266 days out. The first fall frost typically arrives around 09/20, about 118 frost-free days later.
Aberdeen sits in USDA Zone 5b (-15 to -10°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
About 3 weeks of growing season left in Aberdeen before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Aberdeen's last frost
05/21 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 and you're betting against frost in roughly 9 years out of 10. 06/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Aberdeen compares
At roughly 118 frost-free days, Aberdeen places 39,208 of 40,283 ZIP codes in this dataset. Within ID, it ranks 226 of 320.
Learn more
local microclimates covers what one yard in Aberdeen can differ from the 83277 normal. zone vs. frost date covers why Zone 5b and Aberdeen's frost date answer different questions.