Paris, IL 61944 Frost Dates
Frost dates for Paris, IL, ZIP 61944
Around 04/21 is the usual last spring frost, about 236 days away. The first fall frost typically arrives around 10/20, about 179 frost-free days later.
Zone 6a (-10 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 Paris, not a forecast for this year.
What to do before the first frost
Zone 6a around Paris has about 8 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 Paris's last frost
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Paris compares
Paris's growing season runs about 179 days, ranking 25,257 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,019 of 1,548.
Learn more
local microclimates explains what one yard in Paris can differ from the 61944 normal, and zone vs. frost date explains why Zone 6a and Paris's frost date answer different questions.