FrostDateCheck

Somerset, KY 42503 Frost Dates

When can you plant in Somerset, KY?

Zone 7a

Around 04/05 is the usual last spring frost, about 220 days away. The first fall frost typically arrives around 10/30, about 206 frost-free days later.

Somerset sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

About 9 weeks of growing season left in Somerset before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Somerset compares

About 206 days separate Somerset's last and first frost, putting it 15,972 of 40,283 ZIP codes nationally. Within KY, it ranks 190 of 909.

Learn more

local microclimates covers what one yard in Somerset can differ from the 42503 normal. zone vs. frost date covers why Zone 7a and Somerset's frost date answer different questions.