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Fort Wayne, Indiana frost dates

Average last spring frost: April 24. Average first fall frost: October 21. That gives a growing season of about 178 days. For frost-tender plants, a safer planting date is May 10, after which a freeze happens in only 1 year in 10.
Last frost (50%)
Apr 24
1-in-10 risk after May 10
First frost (50%)
Oct 21
1-in-10 risk before Oct 8
Growing season
178 days
median frost-free days
Hard freeze (28°F)
Apr 12
median last 28°F in spring

Frost risk by date

Chance of frostSpring: frost afterFall: frost before
90%April 10November 1
70%April 18October 25
50%April 24October 21
30%May 1October 16
10%May 10October 8

Read the spring column like this: there is a 10% chance of a 32°F freeze after May 10. These are NOAA probabilities for the Ft Wayne International Airport weather station (USW00014827, elevation 241 m), 1991–2020.

Fort Wayne vegetable planting calendar

Dates count from the 50% last-frost date (April 24). For tomatoes, peppers and other frost-tender crops, waiting until the 10% date (May 10) is the cautious choice.

CropStart seeds indoorsPlant out
BeansApr 3May 1 (usually sown directly in the garden)
BroccoliFeb 13Mar 27
Brussels sproutsFeb 13Mar 27
CabbageFeb 6Mar 20
CauliflowerFeb 27Apr 10
Sweet cornMar 27Apr 24 (usually sown directly in the garden)
CucumbersApr 10May 1
KaleFeb 6Mar 20
LeeksJan 9Mar 20
LettuceMar 6Apr 10
MelonsApr 17May 8
OnionsJan 2Mar 13 (from seed; sets and transplants go out at the same time)
PeasFeb 27Mar 27 (usually sown directly in the garden)
PeppersMar 13May 8
SquashApr 17May 8
TomatoesFeb 27Apr 24

Offsets from Oregon State University Extension's seed-starting table. "Plant out" means transplant, or sow directly for crops usually grown from seed.

Fall frost and season extension

The first fall freeze usually arrives around October 21. There's a 1-in-10 chance it comes before October 8. Harvest tender crops such as basil, tomatoes, peppers and squash before then, or cover them on cold nights. Cool-season crops like kale, cabbage and Brussels sprouts handle light frost, and often taste sweeter after it. A hard freeze (28°F) typically comes around November 1.

Nearby cities

CityLast frost (50%)First frost (50%)Distance
Toledo, OHApr 22Oct 24~136 km
Dayton, OHApr 16Oct 28~144 km
Indianapolis, INApr 15Oct 26~167 km
Lansing, MIMay 1Oct 13~208 km
Detroit, MIApr 20Oct 27~210 km
Grand Rapids, MIApr 29Oct 20~215 km

More: all Indiana frost dates