Rosiclare, IL 62982 Frost Dates
Frost dates for Rosiclare, IL, ZIP 62982
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/20, about 181 frost-free days later.
Rosiclare sits in USDA Zone 7a (0 to 5°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
Zone 7a around Rosiclare 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.
How much risk comes with planting early here
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rosiclare compares
Rosiclare's growing season runs about 181 days, ranking 24,644 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 922 of 1,548.
Learn more
local microclimates explains what one yard in Rosiclare can differ from the 62982 normal, and zone vs. frost date explains why Zone 7a and Rosiclare's frost date answer different questions.