FrostDateCheck

Rome City, IN 46784 Frost Dates

46784, near Rome City, IN: the frost window

Zone 6a

The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/10, roughly 159 days after the last spring frost.

Rome City sits in USDA Zone 6a (-10 to -5°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

Rome City's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

Why 05/02 isn't a guarantee

05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.

Rome City against the rest of the dataset

About 159 days separate Rome City's last and first frost, putting it 32,689 of 40,283 ZIP codes nationally. Within IN, it ranks 926 of 927.

Learn more

Two guides worth reading on 46784: the frost range, on how to read the range around Rome City's dates instead of trusting one, and local microclimates, on what one yard in Rome City can differ from the 46784 normal.