Hampton, IL 61256 Frost Dates
When can you plant in Hampton, IL?
Around 04/24 is the usual last spring frost, about 239 days away. The first fall frost typically arrives around 10/18, about 176 frost-free days later.
Zone 5b (-15 to -10°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 Hampton, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Hampton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hampton compares
Hampton's growing season runs about 176 days, ranking 26,493 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,179 of 1,548.
Learn more
zone vs. frost date covers why Zone 5b and Hampton's frost date answer different questions. the frost range covers how to read the range around Hampton's dates instead of trusting one.