Loretto, TN 38469 Frost Dates
Loretto, TN: when does the frost end?
Around 03/29 is the usual last spring frost, about 213 days away. Fall's first freeze usually shows up around 11/04, roughly 219 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 10 weeks until Loretto's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/15 and only about 1 year in 10 sees frost after that.
Loretto against the rest of the dataset
About 219 days separate Loretto's last and first frost, putting it 13,040 of 40,283 ZIP codes nationally. Within TN, it ranks 151 of 770.
Learn more
Before leaning on 38469's figures: the frost range explains how to read the range around Loretto's dates instead of trusting one, while local microclimates explains what one yard in Loretto can differ from the 38469 normal.