Norris, TN 37754 Frost Dates
Norris, TN: when does the frost end?
Typically, the last spring freeze lands around 03/31, roughly 215 days out. Fall's first freeze usually shows up around 11/04, roughly 218 days after the last spring frost.
Norris 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 10 weeks until Norris'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
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/15 and only about 1 year in 10 sees frost after that.
Norris against the rest of the dataset
At roughly 218 frost-free days, Norris places 13,289 of 40,283 ZIP codes in this dataset. Within TN, it ranks 172 of 770.
Learn more
Before leaning on 37754's figures: local microclimates explains what one yard in Norris can differ from the 37754 normal, while zone vs. frost date explains why Zone 7b and Norris's frost date answer different questions.