Toulon, IL 61483 Frost Dates
Frost dates for Toulon, IL, ZIP 61483
Typically, the last spring freeze lands around 04/24, roughly 239 days out. The first fall frost typically arrives around 10/17, about 175 frost-free days later.
Toulon sits in USDA Zone 5b (-15 to -10°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 5b around Toulon has about 7 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 Toulon's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 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 Toulon compares
Toulon's growing season runs about 175 days, ranking 27,066 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,202 of 1,548.
Learn more
the frost range explains how to read the range around Toulon's dates instead of trusting one, and local microclimates explains what one yard in Toulon can differ from the 61483 normal.