Jackson, TN 38302 Frost Dates
38302, near Jackson, TN: the frost window
The last spring frost here typically falls around 04/02, about 217 days from today. Fall's first freeze usually shows up around 10/29, roughly 207 days after the last spring frost.
Jackson 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
Jackson'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.
The actual range around Jackson's last frost
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Jackson against the rest of the dataset
Jackson's growing season runs about 207 days, ranking 15,786 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 402 of 770.
Learn more
Two guides worth reading on 38302: zone vs. frost date, on why Zone 7b and Jackson's frost date answer different questions, and the frost range, on how to read the range around Jackson's dates instead of trusting one.