Mount Pulaski, IL 62518 Frost Dates
Frost dates for Mount Pulaski, IL, ZIP 62518
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/16, about 179 frost-free days later.
Mount Pulaski 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 Mount Pulaski 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 Mount Pulaski's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Pulaski compares
At roughly 179 frost-free days, Mount Pulaski places 25,376 of 40,283 ZIP codes in this dataset. Within IL, it ranks 1,039 of 1,548.
Learn more
the frost range explains how to read the range around Mount Pulaski's dates instead of trusting one, and local microclimates explains what one yard in Mount Pulaski can differ from the 62518 normal.