Noblesville, IN 46061 Frost Dates
46061, near Noblesville, IN: the frost window
Around 04/18 is the usual last spring frost, about 233 days away. Fall's first freeze usually shows up around 10/26, roughly 190 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Noblesville 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
Noblesville's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Noblesville's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Noblesville against the rest of the dataset
At roughly 190 frost-free days, Noblesville places 21,002 of 40,283 ZIP codes in this dataset. Within IN, it ranks 253 of 927.
Learn more
Two guides worth reading on 46061: zone vs. frost date, on why Zone 6a and Noblesville's frost date answer different questions, and the frost range, on how to read the range around Noblesville's dates instead of trusting one.