Nantucket County, Massachusetts · Frost dates

Nantucket County frost dates.

First-frost, last-frost, and growing-season length for Nantucket County, Massachusetts. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6a

32°F — light freeze

Last spring frost

10%
04-27
20%
04-22
50%
04-13
80%
04-05
90%
04-02

First fall frost

10%
10-25
20%
10-31
50%
11-08
80%
11-18
90%
11-23

28°F — killing freeze

Last spring freeze

10%
04-12
20%
04-07
50%
03-31
80%
03-22
90%
03-17

First fall freeze

10%
11-05
20%
11-11
50%
11-23
80%
12-01
90%
12-06

Growing season length (days, 28°F threshold)

Short year
207
Median
237
Long year
264

Source NOAA station

NANTUCKET MEM AP, MA US

3.5 mi · 30 yrs of record (19912020) · 45 ft elev.

Data from NANTUCKET MEM AP, MA US, 3.5 miles away with 30-year NOAA record (1991-2020).

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