Walton, IN 46994 Frost Dates
Frost dates for Walton, IN, ZIP 46994
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/23, about 185 frost-free days later.
Walton 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 Walton has about 8 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 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Walton compares
At roughly 185 frost-free days, Walton places 23,240 of 40,283 ZIP codes in this dataset. Within IN, it ranks 382 of 927.
Learn more
local microclimates explains what one yard in Walton can differ from the 46994 normal, and zone vs. frost date explains why Zone 6a and Walton's frost date answer different questions.