Ridgeside, TN 37404 Frost Dates
Frost dates for Ridgeside, TN, ZIP 37404
Typically, the last spring freeze lands around 03/24, roughly 208 days out. The first fall frost typically arrives around 11/09, about 230 frost-free days later.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Ridgeside, not a forecast for this year.
What to do before the first frost
Zone 8a around Ridgeside has about 10 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.
How much risk comes with planting early here
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/06 and you're betting against frost in roughly 9 years out of 10. 04/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ridgeside compares
Ridgeside's growing season runs about 230 days, ranking 10,467 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 78 of 770.
Learn more
the frost range explains how to read the range around Ridgeside's dates instead of trusting one, and local microclimates explains what one yard in Ridgeside can differ from the 37404 normal.