Fort Wayne, IN 46803 Frost Dates
When can you plant in Fort Wayne, IN?
Typically, the last spring freeze lands around 04/24, roughly 239 days out. The first fall frost typically arrives around 10/21, about 178 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Fort Wayne, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Fort Wayne 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
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fort Wayne compares
Fort Wayne's growing season runs about 178 days, ranking 25,543 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 543 of 927.
Learn more
zone vs. frost date covers why Zone 6a and Fort Wayne's frost date answer different questions. the frost range covers how to read the range around Fort Wayne's dates instead of trusting one.