La Porte, IN 46350 Frost Dates
La Porte, IN: when does the frost end?
The last spring frost here typically falls around 04/19, about 234 days from today. Fall's first freeze usually shows up around 10/27, roughly 191 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 La Porte, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until La Porte's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around La Porte's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
La Porte against the rest of the dataset
About 191 days separate La Porte's last and first frost, putting it 20,717 of 40,283 ZIP codes nationally. Within IN, it ranks 233 of 927.
Learn more
Before leaning on 46350's figures: the frost range explains how to read the range around La Porte's dates instead of trusting one, while local microclimates explains what one yard in La Porte can differ from the 46350 normal.