Troy, IN 47588 Frost Dates
Troy, IN: when does the frost end?
The last spring frost here typically falls around 04/02, about 217 days from today. Fall's first freeze usually shows up around 11/07, roughly 218 days after the last spring frost.
Zone 7a (0 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 Troy, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Troy's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/02 isn't a guarantee
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Troy against the rest of the dataset
About 218 days separate Troy's last and first frost, putting it 13,335 of 40,283 ZIP codes nationally. Within IN, it ranks 25 of 927.
Learn more
Before leaning on 47588's figures: local microclimates explains what one yard in Troy can differ from the 47588 normal, while zone vs. frost date explains why Zone 7a and Troy's frost date answer different questions.