Warren Park, IN 46219 Frost Dates
46219, near Warren Park, 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.
Warren Park 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
Warren Park'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.
How much risk comes with planting early here
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.
Warren Park against the rest of the dataset
Warren Park's growing season runs about 183 days, ranking 23,898 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 419 of 927.
Learn more
Two guides worth reading on 46219: the frost range, on how to read the range around Warren Park's dates instead of trusting one, and local microclimates, on what one yard in Warren Park can differ from the 46219 normal.