Lizton, IN 46149 Frost Dates
Lizton, IN: when does the frost end?
Typically, the last spring freeze lands around 04/23, roughly 238 days out. Fall's first freeze usually shows up around 10/19, roughly 178 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lizton in Zone 6a (-10 to -5°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 Lizton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Lizton against the rest of the dataset
Lizton's growing season runs about 178 days, ranking 25,874 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 610 of 927.
Learn more
Before leaning on 46149's figures: zone vs. frost date explains why Zone 6a and Lizton's frost date answer different questions, while the frost range explains how to read the range around Lizton's dates instead of trusting one.