East St. Louis, IL 62205 Frost Dates
Frost dates for East St. Louis, IL, ZIP 62205
Typically, the last spring freeze lands around 04/08, roughly 223 days out. The first fall frost typically arrives around 10/26, about 200 frost-free days later.
East St. Louis 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 East St. Louis 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 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How East St. Louis compares
East St. Louis's growing season runs about 200 days, ranking 17,734 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 273 of 1,548.
Learn more
the frost range explains how to read the range around East St. Louis's dates instead of trusting one, and local microclimates explains what one yard in East St. Louis can differ from the 62205 normal.