Columbia, TN 38487 Frost Dates
When can you plant in Columbia, TN?
Around 04/10 is the usual last spring frost, about 225 days away. The first fall frost typically arrives around 10/27, about 199 frost-free days later.
The USDA Plant Hardiness Zone Map puts Columbia 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 9 weeks of growing season left in Columbia before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/10 isn't a guarantee
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Columbia compares
Columbia's growing season runs about 199 days, ranking 18,020 of 40,283 US ZIP codes measured here, longest to shortest. Within TN, it ranks 555 of 770.
Learn more
the frost range covers how to read the range around Columbia's dates instead of trusting one. local microclimates covers what one yard in Columbia can differ from the 38487 normal.