East St. Louis, IL 62201 Frost Dates
Frost dates for East St. Louis, IL, ZIP 62201
Around 04/08 is the usual last spring frost, about 223 days away. The first fall frost typically arrives around 10/26, about 200 frost-free days later.
The USDA Plant Hardiness Zone Map puts East St. Louis in Zone 7a (0 to 5°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 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.
The actual range around East St. Louis's last frost
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
At roughly 200 frost-free days, East St. Louis places 17,732 of 40,283 ZIP codes in this dataset. Within IL, it ranks 271 of 1,548.
Learn more
zone vs. frost date explains why Zone 7a and East St. Louis's frost date answer different questions, and the frost range explains how to read the range around East St. Louis's dates instead of trusting one.