Loretto, TN 38486 Frost Dates
Frost dates for Loretto, TN, ZIP 38486
Typically, the last spring freeze lands around 04/14, roughly 229 days out. The first fall frost typically arrives around 10/24, about 192 frost-free days later.
Loretto sits in USDA Zone 7b (5 to 10°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 7b around Loretto 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.
The actual range around Loretto's last frost
04/14 is the middle of 30 years of NOAA records, not a promise. Plant by 03/28 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Loretto compares
About 192 days separate Loretto's last and first frost, putting it 20,399 of 40,283 ZIP codes nationally. Within TN, it ranks 633 of 770.
Learn more
zone vs. frost date explains why Zone 7b and Loretto's frost date answer different questions, and the frost range explains how to read the range around Loretto's dates instead of trusting one.