Erin, TN 37061 Frost Dates
Erin, TN: when does the frost end?
Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 11/03, roughly 211 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Erin in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Erin's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Erin against the rest of the dataset
Erin's growing season runs about 211 days, ranking 14,808 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 303 of 770.
Learn more
Before leaning on 37061's figures: local microclimates explains what one yard in Erin can differ from the 37061 normal, while zone vs. frost date explains why Zone 7b and Erin's frost date answer different questions.