Paris, ID 83261 Frost Dates
Frost dates for Paris, ID, ZIP 83261
Typically, the last spring freeze lands around 06/17, roughly 293 days out. The first fall frost typically arrives around 09/03, about 77 frost-free days later.
Zone 5a (-20 to -15°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 Paris, not a forecast for this year.
What to do before the first frost
Zone 5a around Paris has about 1 week 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
06/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/31 and you're betting against frost in roughly 9 years out of 10. 07/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Paris compares
About 77 days separate Paris's last and first frost, putting it 40,078 of 40,283 ZIP codes nationally. Within ID, it ranks 293 of 320.
Learn more
zone vs. frost date explains why Zone 5a and Paris's frost date answer different questions, and the frost range explains how to read the range around Paris's dates instead of trusting one.