Kingsford Heights, IN 46346 Frost Dates
Frost dates for Kingsford Heights, IN, ZIP 46346
Around 04/19 is the usual last spring frost, about 234 days away. The first fall frost typically arrives around 10/27, about 191 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kingsford Heights in Zone 5b (-15 to -10°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 5b around Kingsford Heights has about 9 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.
The actual range around Kingsford Heights's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kingsford Heights compares
Kingsford Heights's growing season runs about 191 days, ranking 20,815 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 238 of 927.
Learn more
local microclimates explains what one yard in Kingsford Heights can differ from the 46346 normal, and zone vs. frost date explains why Zone 5b and Kingsford Heights's frost date answer different questions.