Franklin, TN 37068 Frost Dates
37068, near Franklin, TN: the frost window
The last spring frost here typically falls around 04/03, about 218 days from today. Fall's first freeze usually shows up around 10/31, roughly 210 days after the last spring frost.
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 Franklin, not a forecast for this year.
Stretching the season past the first frost
Franklin's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/03 isn't a guarantee
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Franklin against the rest of the dataset
Franklin's growing season runs about 210 days, ranking 14,968 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 321 of 770.
Learn more
Two guides worth reading on 37068: the frost range, on how to read the range around Franklin's dates instead of trusting one, and local microclimates, on what one yard in Franklin can differ from the 37068 normal.