Lawrence, IN 46249 Frost Dates
46249, near Lawrence, IN: the frost window
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/26, roughly 190 days after the last spring frost.
Lawrence 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
Lawrence'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.
The actual range around Lawrence's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Lawrence against the rest of the dataset
At roughly 190 frost-free days, Lawrence places 21,021 of 40,283 ZIP codes in this dataset. Within IN, it ranks 260 of 927.
Learn more
Two guides worth reading on 46249: the frost range, on how to read the range around Lawrence's dates instead of trusting one, and local microclimates, on what one yard in Lawrence can differ from the 46249 normal.