Brook, IN 47922 Frost Dates
When can you plant in Brook, IN?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/14, about 175 frost-free days later.
Brook sits in USDA Zone 5b (-15 to -10°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 7 weeks of growing season left in Brook before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Brook's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brook compares
About 175 days separate Brook's last and first frost, putting it 27,093 of 40,283 ZIP codes nationally. Within IN, it ranks 642 of 927.
Learn more
zone vs. frost date covers why Zone 5b and Brook's frost date answer different questions. the frost range covers how to read the range around Brook's dates instead of trusting one.