Stamford, CT 06807 Frost Dates
Frost dates for Stamford, CT, ZIP 06807
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/23, about 188 frost-free days later.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Stamford, not a forecast for this year.
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.
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
At roughly 188 frost-free days, Stamford places 21,792 of 40,283 ZIP codes in this dataset. Within CT, it ranks 205 of 391.
Learn more
local microclimates explains what one yard in Stamford can differ from the 06807 normal, and zone vs. frost date explains why Zone 7a and Stamford's frost date answer different questions.