Allardt, TN 38565 Frost Dates
38565, near Allardt, TN: the frost window
Around 04/17 is the usual last spring frost, about 232 days away. Fall's first freeze usually shows up around 10/23, roughly 188 days after the last spring frost.
Allardt sits in USDA Zone 7a (0 to 5°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
Allardt's growing season runs out in roughly 8 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
04/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Allardt against the rest of the dataset
At roughly 188 frost-free days, Allardt places 22,150 of 40,283 ZIP codes in this dataset. Within TN, it ranks 683 of 770.
Learn more
Two guides worth reading on 38565: the frost range, on how to read the range around Allardt's dates instead of trusting one, and local microclimates, on what one yard in Allardt can differ from the 38565 normal.