Jasper, IN 47546 Frost Dates
When can you plant in Jasper, IN?
Around 04/15 is the usual last spring frost, about 230 days away. The first fall frost typically arrives around 10/23, about 189 frost-free days later.
The USDA Plant Hardiness Zone Map puts Jasper in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 8 weeks of growing season left in Jasper 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
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jasper compares
About 189 days separate Jasper's last and first frost, putting it 21,441 of 40,283 ZIP codes nationally. Within IN, it ranks 273 of 927.
Learn more
the frost range covers how to read the range around Jasper's dates instead of trusting one. local microclimates covers what one yard in Jasper can differ from the 47546 normal.