Greater Bridgeport Planning Region, Connecticut · Frost dates

Greater Bridgeport Planning Region frost dates.

First-frost, last-frost, and growing-season length for Greater Bridgeport Planning Region, Connecticut. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6b

32°F — light freeze

Last spring frost

10%
04-17
20%
04-13
50%
04-05
80%
03-30
90%
03-25

First fall frost

10%
10-25
20%
10-30
50%
11-06
80%
11-16
90%
11-20

28°F — killing freeze

Last spring freeze

10%
04-06
20%
04-03
50%
03-26
80%
03-16
90%
03-11

First fall freeze

10%
11-06
20%
11-11
50%
11-19
80%
12-01
90%
12-05

Growing season length (days, 28°F threshold)

Short year
214
Median
238
Long year
269

Source NOAA station

BRIDGEPORT SIKORSKY MEM AP, CT US

4.6 mi · 30 yrs of record (19912020) · 5 ft elev.

Data from BRIDGEPORT SIKORSKY MEM AP, CT US, 4.6 miles away with 30-year NOAA record (1991-2020).

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