Dublin, IN 47335 Frost Dates
47335, near Dublin, IN: the frost window
Typically, the last spring freeze lands around 04/27, roughly 242 days out. Fall's first freeze usually shows up around 10/09, roughly 164 days after the last spring frost.
Dublin 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
Dublin'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 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Dublin against the rest of the dataset
At roughly 164 frost-free days, Dublin places 31,097 of 40,283 ZIP codes in this dataset. Within IN, it ranks 883 of 927.
Learn more
Two guides worth reading on 47335: local microclimates, on what one yard in Dublin can differ from the 47335 normal, and zone vs. frost date, on why Zone 6a and Dublin's frost date answer different questions.