Allardt, TN 38504 Frost Dates
Frost dates for Allardt, TN, ZIP 38504
Around 04/17 is the usual last spring frost, about 232 days away. The first fall frost typically arrives around 10/23, about 188 frost-free days later.
Zone 7a (0 to 5°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 Allardt, not a forecast for this year.
What to do before the first frost
Zone 7a around Allardt has about 8 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
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Allardt compares
Allardt's growing season runs about 188 days, ranking 22,148 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 681 of 770.
Learn more
the frost range explains how to read the range around Allardt's dates instead of trusting one, and local microclimates explains what one yard in Allardt can differ from the 38504 normal.