Cromwell, IN 46732 Frost Dates
When can you plant in Cromwell, IN?
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/24, about 182 frost-free days later.
Cromwell sits in USDA Zone 6a (-10 to -5°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 Cromwell 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
04/24 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. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cromwell compares
Cromwell's growing season runs about 182 days, ranking 24,287 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 453 of 927.
Learn more
local microclimates covers what one yard in Cromwell can differ from the 46732 normal. zone vs. frost date covers why Zone 6a and Cromwell's frost date answer different questions.