FrostDateCheck

Stamford, CT 06878 Frost Dates

When can you plant in Stamford, CT?

Zone 7b

The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/23, about 188 frost-free days later.

The USDA Plant Hardiness Zone Map puts Stamford 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 8 weeks of growing season left in Stamford before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Stamford's last frost

04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Stamford compares

Stamford's growing season runs about 188 days, ranking 21,796 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 209 of 391.

Learn more

the frost range covers how to read the range around Stamford's dates instead of trusting one. local microclimates covers what one yard in Stamford can differ from the 06878 normal.