Somerville, AL 35670 Frost Dates
When can you plant in Somerville, AL?
Around 03/24 is the usual last spring frost, about 208 days away. The first fall frost typically arrives around 11/08, about 229 frost-free days later.
The USDA Plant Hardiness Zone Map puts Somerville in Zone 8a (10 to 15°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 10 weeks of growing season left in Somerville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 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 Somerville compares
At roughly 229 frost-free days, Somerville places 10,633 of 40,283 ZIP codes in this dataset. Within AL, it ranks 537 of 809.
Learn more
zone vs. frost date covers why Zone 8a and Somerville's frost date answer different questions. the frost range covers how to read the range around Somerville's dates instead of trusting one.