St. Paul, IN 46156 Frost Dates
St. Paul, IN: when does the frost end?
The last spring frost here typically falls around 04/15, about 230 days from today. Fall's first freeze usually shows up around 10/26, roughly 194 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 St. Paul, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until St. Paul's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
St. Paul against the rest of the dataset
St. Paul's growing season runs about 194 days, ranking 19,534 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 192 of 927.
Learn more
Before leaning on 46156's figures: zone vs. frost date explains why Zone 6a and St. Paul's frost date answer different questions, while the frost range explains how to read the range around St. Paul's dates instead of trusting one.