Tremont, IL 61568 Frost Dates
When can you plant in Tremont, IL?
Typically, the last spring freeze lands around 04/21, roughly 236 days out. The first fall frost typically arrives around 10/17, about 178 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 Tremont, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Tremont before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tremont compares
About 178 days separate Tremont's last and first frost, putting it 25,754 of 40,283 ZIP codes nationally. Within IL, it ranks 1,084 of 1,548.
Learn more
the frost range covers how to read the range around Tremont's dates instead of trusting one. local microclimates covers what one yard in Tremont can differ from the 61568 normal.