Mackey, IN 47654 Frost Dates
Mackey, IN: when does the frost end?
Around 04/13 is the usual last spring frost, about 228 days away. Fall's first freeze usually shows up around 10/25, roughly 194 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Mackey in Zone 7a (0 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 8 weeks until Mackey'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
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Mackey against the rest of the dataset
At roughly 194 frost-free days, Mackey places 19,651 of 40,283 ZIP codes in this dataset. Within IN, it ranks 204 of 927.
Learn more
Before leaning on 47654's figures: zone vs. frost date explains why Zone 7a and Mackey's frost date answer different questions, while the frost range explains how to read the range around Mackey's dates instead of trusting one.