North Manchester, IN 46946 Frost Dates
Frost dates for North Manchester, IN, ZIP 46946
The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/19, about 174 frost-free days later.
North Manchester 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
Zone 6a around North Manchester has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 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 North Manchester compares
About 174 days separate North Manchester's last and first frost, putting it 27,443 of 40,283 ZIP codes nationally. Within IN, it ranks 660 of 927.
Learn more
the frost range explains how to read the range around North Manchester's dates instead of trusting one, and local microclimates explains what one yard in North Manchester can differ from the 46946 normal.