Byrdstown, TN 38549 Frost Dates
Byrdstown, TN: when does the frost end?
Typically, the last spring freeze lands around 04/20, roughly 235 days out. Fall's first freeze usually shows up around 10/22, roughly 183 days after the last spring frost.
Byrdstown 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
With roughly 8 weeks until Byrdstown's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Byrdstown against the rest of the dataset
About 183 days separate Byrdstown's last and first frost, putting it 23,935 of 40,283 ZIP codes nationally. Within TN, it ranks 733 of 770.
Learn more
Before leaning on 38549's figures: zone vs. frost date explains why Zone 7a and Byrdstown's frost date answer different questions, while the frost range explains how to read the range around Byrdstown's dates instead of trusting one.