St. Libory, IL 62282 Frost Dates
Frost dates for St. Libory, IL, ZIP 62282
Typically, the last spring freeze lands around 04/12, roughly 227 days out. The first fall frost typically arrives around 10/20, about 189 frost-free days later.
The USDA Plant Hardiness Zone Map puts St. Libory 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 St. Libory 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.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/28 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Libory compares
St. Libory's growing season runs about 189 days, ranking 21,685 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 626 of 1,548.
Learn more
the frost range explains how to read the range around St. Libory's dates instead of trusting one, and local microclimates explains what one yard in St. Libory can differ from the 62282 normal.