FrostDateCheck

Johnson City, TN 37601 Frost Dates

When can you plant in Johnson City, TN?

Zone 7b

The last spring frost here typically falls around 04/16, about 231 days from today. The first fall frost typically arrives around 10/24, about 190 frost-free days later.

The USDA Plant Hardiness Zone Map puts Johnson City in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

About 8 weeks of growing season left in Johnson City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/16 isn't a guarantee

04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Johnson City compares

At roughly 190 frost-free days, Johnson City places 21,005 of 40,283 ZIP codes in this dataset. Within TN, it ranks 649 of 770.

Learn more

the frost range covers how to read the range around Johnson City's dates instead of trusting one. local microclimates covers what one yard in Johnson City can differ from the 37601 normal.