Cromwell, IN 46760 Frost Dates
Cromwell, IN: when does the frost end?
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/24, roughly 182 days after the last spring frost.
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 Cromwell, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Cromwell's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Cromwell's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Cromwell against the rest of the dataset
About 182 days separate Cromwell's last and first frost, putting it 24,288 of 40,283 ZIP codes nationally. Within IN, it ranks 454 of 927.
Learn more
Before leaning on 46760's figures: zone vs. frost date explains why Zone 6a and Cromwell's frost date answer different questions, while the frost range explains how to read the range around Cromwell's dates instead of trusting one.