Blaine, TN 37709 Frost Dates
Blaine, TN: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/17, roughly 175 days after the last spring frost.
Blaine 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
With roughly 7 weeks until Blaine's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Blaine against the rest of the dataset
Blaine's growing season runs about 175 days, ranking 26,971 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 757 of 770.
Learn more
Before leaning on 37709's figures: zone vs. frost date explains why Zone 7b and Blaine's frost date answer different questions, while the frost range explains how to read the range around Blaine's dates instead of trusting one.