Stamford, CT 06902 Frost Dates
Frost dates for Stamford, CT, ZIP 06902
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.
Stamford 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
Zone 7a around Stamford has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
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 21,798 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 211 of 391.
Learn more
local microclimates explains what one yard in Stamford can differ from the 06902 normal, and zone vs. frost date explains why Zone 7a and Stamford's frost date answer different questions.