Smiths Grove, KY 42163 Frost Dates
Frost dates for Smiths Grove, KY, ZIP 42163
Typically, the last spring freeze lands around 04/09, roughly 224 days out. The first fall frost typically arrives around 10/30, about 204 frost-free days later.
The USDA Plant Hardiness Zone Map puts Smiths Grove in Zone 7a (0 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 7a around Smiths Grove 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.
How much risk comes with planting early here
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Smiths Grove compares
About 204 days separate Smiths Grove's last and first frost, putting it 16,687 of 40,283 ZIP codes nationally. Within KY, it ranks 220 of 909.
Learn more
zone vs. frost date explains why Zone 7a and Smiths Grove's frost date answer different questions, and the frost range explains how to read the range around Smiths Grove's dates instead of trusting one.