Deary, ID 83823 Frost Dates
Frost dates for Deary, ID, ZIP 83823
Typically, the last spring freeze lands around 05/16, roughly 261 days out. The first fall frost typically arrives around 09/23, about 128 frost-free days later.
The USDA Plant Hardiness Zone Map puts Deary in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Deary has about 4 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
05/16 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Deary compares
Deary's growing season runs about 128 days, ranking 38,571 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 183 of 320.
Learn more
zone vs. frost date explains why Zone 6b and Deary's frost date answer different questions, and the frost range explains how to read the range around Deary's dates instead of trusting one.