Charlestown, IN 47111 Frost Dates
Charlestown, IN: when does the frost end?
Typically, the last spring freeze lands around 04/12, roughly 227 days out. Fall's first freeze usually shows up around 10/25, roughly 193 days after the last spring frost.
Charlestown sits in USDA Zone 7a (0 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.
Stretching the season past the first frost
With roughly 8 weeks until Charlestown's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Charlestown's last frost
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Charlestown against the rest of the dataset
Charlestown's growing season runs about 193 days, ranking 19,792 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 207 of 927.
Learn more
Before leaning on 47111's figures: the frost range explains how to read the range around Charlestown's dates instead of trusting one, while local microclimates explains what one yard in Charlestown can differ from the 47111 normal.