Dalton City, IL 61925 Frost Dates
Frost dates for Dalton City, IL, ZIP 61925
Around 04/16 is the usual last spring frost, about 231 days away. The first fall frost typically arrives around 10/22, about 187 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Dalton City, not a forecast for this year.
What to do before the first frost
Zone 6a around Dalton City 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.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dalton City compares
About 187 days separate Dalton City's last and first frost, putting it 22,571 of 40,283 ZIP codes nationally. Within IL, it ranks 793 of 1,548.
Learn more
local microclimates explains what one yard in Dalton City can differ from the 61925 normal, and zone vs. frost date explains why Zone 6a and Dalton City's frost date answer different questions.