Milan, IN 47031 Frost Dates
Milan, IN: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/16, roughly 168 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Milan in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 7 weeks until Milan's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Milan against the rest of the dataset
At roughly 168 frost-free days, Milan places 29,726 of 40,283 ZIP codes in this dataset. Within IN, it ranks 831 of 927.
Learn more
Before leaning on 47031's figures: local microclimates explains what one yard in Milan can differ from the 47031 normal, while zone vs. frost date explains why Zone 6b and Milan's frost date answer different questions.