Dover, TN 37023 Frost Dates
37023, near Dover, TN: the frost window
The last spring frost here typically falls around 04/04, about 219 days from today. Fall's first freeze usually shows up around 10/31, roughly 210 days after the last spring frost.
Zone 7a (0 to 5°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 Dover, not a forecast for this year.
Stretching the season past the first frost
Dover'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 Dover's last frost
04/04 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 04/21 and only about 1 year in 10 sees frost after that.
Dover against the rest of the dataset
Dover's growing season runs about 210 days, ranking 15,032 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 335 of 770.
Learn more
Two guides worth reading on 37023: the frost range, on how to read the range around Dover's dates instead of trusting one, and local microclimates, on what one yard in Dover can differ from the 37023 normal.