Western Connecticut Planning Region, Connecticut · Frost dates

Western Connecticut Planning Region frost dates.

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

Data confidence: high · USDA zone: 6b

32°F — light freeze

Last spring frost

10%
05-16
20%
05-10
50%
05-01
80%
04-22
90%
04-18

First fall frost

10%
10-01
20%
10-04
50%
10-14
80%
10-24
90%
10-29

28°F — killing freeze

Last spring freeze

10%
05-04
20%
04-28
50%
04-18
80%
04-07
90%
04-03

First fall freeze

10%
10-11
20%
10-16
50%
10-27
80%
11-04
90%
11-08

Growing season length (days, 28°F threshold)

Short year
160
Median
192
Long year
219

Source NOAA station

DANBURY MUNI AP, CT US

6.7 mi · 30 yrs of record (19912020) · 457 ft elev.

Data from DANBURY MUNI AP, CT US, 6.7 miles away with 30-year NOAA record (1991-2020).

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