Saltillo, TN 38370 Frost Dates
Saltillo, TN: when does the frost end?
Around 04/04 is the usual last spring frost, about 219 days away. Fall's first freeze usually shows up around 10/30, roughly 208 days after the last spring frost.
Saltillo 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 9 weeks until Saltillo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Saltillo against the rest of the dataset
At roughly 208 frost-free days, Saltillo places 15,729 of 40,283 ZIP codes in this dataset. Within TN, it ranks 394 of 770.
Learn more
Before leaning on 38370's figures: zone vs. frost date explains why Zone 7b and Saltillo's frost date answer different questions, while the frost range explains how to read the range around Saltillo's dates instead of trusting one.