Bath, IL 62617 Frost Dates
Frost dates for Bath, IL, ZIP 62617
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/19, about 185 frost-free days later.
Bath sits in USDA Zone 6a (-10 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 6a around Bath 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 Bath's last frost
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bath compares
About 185 days separate Bath's last and first frost, putting it 23,326 of 40,283 ZIP codes nationally. Within IL, it ranks 848 of 1,548.
Learn more
the frost range explains how to read the range around Bath's dates instead of trusting one, and local microclimates explains what one yard in Bath can differ from the 62617 normal.