FrostDateCheck

Bantam, CT 06794 Frost Dates

When can you plant in Bantam, CT?

Zone 6a

Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/20, about 181 frost-free days later.

The USDA Plant Hardiness Zone Map puts Bantam in Zone 6a (-10 to -5°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 8 weeks of growing season left in Bantam 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

04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Bantam compares

About 181 days separate Bantam's last and first frost, putting it 24,656 of 40,283 ZIP codes nationally. Within CT, it ranks 274 of 391.

Learn more

local microclimates covers what one yard in Bantam can differ from the 06794 normal. zone vs. frost date covers why Zone 6a and Bantam's frost date answer different questions.