FrostDateCheck

Bridgeport, CT 06602 Frost Dates

06602, near Bridgeport, CT: the frost window

Zone 7a

Around 04/05 is the usual last spring frost, about 220 days away. 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

Bridgeport's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

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

At roughly 216 frost-free days, Bridgeport places 13,685 of 40,283 ZIP codes in this dataset. Within CT, it ranks 9 of 391.

Learn more

Two guides worth reading on 06602: local microclimates, on what one yard in Bridgeport can differ from the 06602 normal, and zone vs. frost date, on why Zone 7a and Bridgeport's frost date answer different questions.