New Britain, CT 06052 Frost Dates
Frost dates for New Britain, CT, ZIP 06052
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/26, about 191 frost-free days later.
Zone 6b (-5 to 0°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 New Britain, not a forecast for this year.
What to do before the first frost
Zone 6b around New Britain 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 04/01 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Britain compares
At roughly 191 frost-free days, New Britain places 20,684 of 40,283 ZIP codes in this dataset. Within CT, it ranks 193 of 391.
Learn more
local microclimates explains what one yard in New Britain can differ from the 06052 normal, and zone vs. frost date explains why Zone 6b and New Britain's frost date answer different questions.