Fillmore, IN 46128 Frost Dates
Frost dates for Fillmore, IN, ZIP 46128
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/15, about 169 frost-free days later.
The USDA Plant Hardiness Zone Map puts Fillmore in Zone 6a (-10 to -5°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
Zone 6a around Fillmore 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 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fillmore compares
At roughly 169 frost-free days, Fillmore places 29,563 of 40,283 ZIP codes in this dataset. Within IN, it ranks 822 of 927.
Learn more
the frost range explains how to read the range around Fillmore's dates instead of trusting one, and local microclimates explains what one yard in Fillmore can differ from the 46128 normal.