Ingalls, IN 46048 Frost Dates
Ingalls, IN: when does the frost end?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/23, roughly 186 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 Ingalls, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Ingalls's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Ingalls against the rest of the dataset
About 186 days separate Ingalls's last and first frost, putting it 22,838 of 40,283 ZIP codes nationally. Within IN, it ranks 331 of 927.
Learn more
Before leaning on 46048's figures: local microclimates explains what one yard in Ingalls can differ from the 46048 normal, while zone vs. frost date explains why Zone 6a and Ingalls's frost date answer different questions.