St. Leon, IN 47022 Frost Dates
When can you plant in St. Leon, IN?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/16, about 168 frost-free days later.
St. Leon 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.
What to do before the first frost
About 7 weeks of growing season left in St. Leon before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Leon compares
At roughly 168 frost-free days, St. Leon places 29,756 of 40,283 ZIP codes in this dataset. Within IN, it ranks 838 of 927.
Learn more
local microclimates covers what one yard in St. Leon can differ from the 47022 normal. zone vs. frost date covers why Zone 6b and St. Leon's frost date answer different questions.