Parsons, TN 38380 Frost Dates
Frost dates for Parsons, TN, ZIP 38380
Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 10/29, about 206 frost-free days later.
The USDA Plant Hardiness Zone Map puts Parsons 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
Zone 7b around Parsons has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Parsons compares
Parsons's growing season runs about 206 days, ranking 16,028 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 424 of 770.
Learn more
the frost range explains how to read the range around Parsons's dates instead of trusting one, and local microclimates explains what one yard in Parsons can differ from the 38380 normal.