Basco, IL 62313 Frost Dates
When can you plant in Basco, IL?
Typically, the last spring freeze lands around 04/13, roughly 228 days out. The first fall frost typically arrives around 10/22, about 191 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 Basco, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Basco before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Basco's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 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 Basco compares
At roughly 191 frost-free days, Basco places 20,948 of 40,283 ZIP codes in this dataset. Within IL, it ranks 483 of 1,548.
Learn more
the frost range covers how to read the range around Basco's dates instead of trusting one. local microclimates covers what one yard in Basco can differ from the 62313 normal.