Sweetser, IN 46987 Frost Dates
Sweetser, IN: when does the frost end?
Around 04/26 is the usual last spring frost, about 241 days away. Fall's first freeze usually shows up around 10/20, roughly 175 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Sweetser, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Sweetser'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
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Sweetser against the rest of the dataset
About 175 days separate Sweetser's last and first frost, putting it 27,076 of 40,283 ZIP codes nationally. Within IN, it ranks 640 of 927.
Learn more
Before leaning on 46987's figures: local microclimates explains what one yard in Sweetser can differ from the 46987 normal, while zone vs. frost date explains why Zone 6a and Sweetser's frost date answer different questions.