New Carlisle, IN 46552 Frost Dates
New Carlisle, IN: when does the frost end?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/19, roughly 170 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 New Carlisle, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until New Carlisle's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around New Carlisle's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
New Carlisle against the rest of the dataset
At roughly 170 frost-free days, New Carlisle places 29,057 of 40,283 ZIP codes in this dataset. Within IN, it ranks 804 of 927.
Learn more
Before leaning on 46552's figures: the frost range explains how to read the range around New Carlisle's dates instead of trusting one, while local microclimates explains what one yard in New Carlisle can differ from the 46552 normal.