Yorkville, TN 38389 Frost Dates
Frost dates for Yorkville, TN, ZIP 38389
Typically, the last spring freeze lands around 03/28, roughly 212 days out. The first fall frost typically arrives around 11/02, about 221 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Yorkville, not a forecast for this year.
What to do before the first frost
Zone 7b around Yorkville 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
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/10 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Yorkville compares
At roughly 221 frost-free days, Yorkville places 12,597 of 40,283 ZIP codes in this dataset. Within TN, it ranks 129 of 770.
Learn more
the frost range explains how to read the range around Yorkville's dates instead of trusting one, and local microclimates explains what one yard in Yorkville can differ from the 38389 normal.