Beech Grove, IN 46203 Frost Dates
46203, near Beech Grove, IN: the frost window
Typically, the last spring freeze lands around 04/20, roughly 235 days out. Fall's first freeze usually shows up around 10/21, roughly 183 days after the last spring frost.
Beech Grove 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
Beech Grove'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.
Why 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Beech Grove against the rest of the dataset
About 183 days separate Beech Grove's last and first frost, putting it 23,799 of 40,283 ZIP codes nationally. Within IN, it ranks 416 of 927.
Learn more
Two guides worth reading on 46203: the frost range, on how to read the range around Beech Grove's dates instead of trusting one, and local microclimates, on what one yard in Beech Grove can differ from the 46203 normal.