Bridgeport, CT 06604 Frost Dates
Bridgeport, CT: when does the frost end?
Typically, the last spring freeze lands around 04/05, roughly 220 days out. Fall's first freeze usually shows up around 11/06, roughly 216 days after the last spring frost.
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 Bridgeport, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Bridgeport's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Bridgeport's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
Bridgeport against the rest of the dataset
About 216 days separate Bridgeport's last and first frost, putting it 13,686 of 40,283 ZIP codes nationally. Within CT, it ranks 10 of 391.
Learn more
Before leaning on 06604's figures: local microclimates explains what one yard in Bridgeport can differ from the 06604 normal, while zone vs. frost date explains why Zone 7a and Bridgeport's frost date answer different questions.