Dunkirk, IN 47336 Frost Dates
When can you plant in Dunkirk, IN?
Around 04/25 is the usual last spring frost, about 240 days away. The first fall frost typically arrives around 10/16, about 173 frost-free days later.
Dunkirk 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.
What to do before the first frost
About 7 weeks of growing season left in Dunkirk before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dunkirk compares
Dunkirk's growing season runs about 173 days, ranking 27,933 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 717 of 927.
Learn more
the frost range covers how to read the range around Dunkirk's dates instead of trusting one. local microclimates covers what one yard in Dunkirk can differ from the 47336 normal.