Springfield, TN 37172 Frost Dates
37172, near Springfield, TN: the frost window
The last spring frost here typically falls around 04/07, about 222 days from today. Fall's first freeze usually shows up around 10/28, roughly 204 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 Springfield, not a forecast for this year.
Stretching the season past the first frost
Springfield'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.
How much risk comes with planting early here
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Springfield against the rest of the dataset
About 204 days separate Springfield's last and first frost, putting it 16,528 of 40,283 ZIP codes nationally. Within TN, it ranks 457 of 770.
Learn more
Two guides worth reading on 37172: local microclimates, on what one yard in Springfield can differ from the 37172 normal, and zone vs. frost date, on why Zone 7a and Springfield's frost date answer different questions.