Speedway, IN 46222 Frost Dates
Speedway, IN: when does the frost end?
The last spring frost here typically falls around 04/12, about 227 days from today. Fall's first freeze usually shows up around 10/29, roughly 198 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Speedway 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 9 weeks until Speedway's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Speedway's last frost
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Speedway against the rest of the dataset
About 198 days separate Speedway's last and first frost, putting it 18,379 of 40,283 ZIP codes nationally. Within IN, it ranks 119 of 927.
Learn more
Before leaning on 46222's figures: zone vs. frost date explains why Zone 6b and Speedway's frost date answer different questions, while the frost range explains how to read the range around Speedway's dates instead of trusting one.