FrostDateCheck

Oolitic, IN 47462 Frost Dates

47462, near Oolitic, IN: the frost window

Zone 6b

Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 10/30, roughly 201 days after the last spring frost.

Oolitic sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

Stretching the season past the first frost

Oolitic's growing season runs out in roughly 9 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 Oolitic's last frost

04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 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.

Oolitic against the rest of the dataset

Oolitic's growing season runs about 201 days, ranking 17,575 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 101 of 927.

Learn more

Two guides worth reading on 47462: zone vs. frost date, on why Zone 6b and Oolitic's frost date answer different questions, and the frost range, on how to read the range around Oolitic's dates instead of trusting one.