Carthage, IN 46115 Frost Dates
46115, near Carthage, IN: the frost window
The last spring frost here typically falls around 04/19, about 234 days from today. Fall's first freeze usually shows up around 10/22, roughly 185 days after the last spring frost.
Carthage 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.
Stretching the season past the first frost
Carthage's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Carthage's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Carthage against the rest of the dataset
At roughly 185 frost-free days, Carthage places 23,244 of 40,283 ZIP codes in this dataset. Within IN, it ranks 383 of 927.
Learn more
Two guides worth reading on 46115: local microclimates, on what one yard in Carthage can differ from the 46115 normal, and zone vs. frost date, on why Zone 6a and Carthage's frost date answer different questions.