Crab Orchard, TN 38558 Frost Dates
Crab Orchard, TN: when does the frost end?
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/23, roughly 189 days after the last spring frost.
Crab Orchard 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 Crab Orchard's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Crab Orchard against the rest of the dataset
About 189 days separate Crab Orchard's last and first frost, putting it 21,671 of 40,283 ZIP codes nationally. Within TN, it ranks 680 of 770.
Learn more
Before leaning on 38558's figures: local microclimates explains what one yard in Crab Orchard can differ from the 38558 normal, while zone vs. frost date explains why Zone 7a and Crab Orchard's frost date answer different questions.