Bloomington, IN 47402 Frost Dates
When can you plant in Bloomington, IN?
Typically, the last spring freeze lands around 04/15, roughly 230 days out. The first fall frost typically arrives around 10/26, about 192 frost-free days later.
Bloomington sits in USDA Zone 6b (-5 to 0°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
About 8 weeks of growing season left in Bloomington before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Bloomington's last frost
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bloomington compares
Bloomington's growing season runs about 192 days, ranking 20,133 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 212 of 927.
Learn more
the frost range covers how to read the range around Bloomington's dates instead of trusting one. local microclimates covers what one yard in Bloomington can differ from the 47402 normal.