New Britain, CT 06062 Frost Dates
New Britain, CT: when does the frost end?
Typically, the last spring freeze lands around 04/25, roughly 240 days out. Fall's first freeze usually shows up around 10/18, roughly 172 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 7 weeks until New Britain's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
New Britain against the rest of the dataset
About 172 days separate New Britain's last and first frost, putting it 28,138 of 40,283 ZIP codes nationally. Within CT, it ranks 320 of 391.
Learn more
Before leaning on 06062's figures: local microclimates explains what one yard in New Britain can differ from the 06062 normal, while zone vs. frost date explains why Zone 6b and New Britain's frost date answer different questions.