Plymouth County, Massachusetts · Frost dates
Plymouth County frost dates.
First-frost, last-frost, and growing-season length for Plymouth County, Massachusetts. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 04-28
- 20%
- 04-24
- 50%
- 04-15
- 80%
- 04-06
- 90%
- 04-02
First fall frost
- 10%
- 10-17
- 20%
- 10-23
- 50%
- 11-01
- 80%
- 11-10
- 90%
- 11-14
28°F — killing freeze
Last spring freeze
- 10%
- 04-18
- 20%
- 04-12
- 50%
- 04-03
- 80%
- 03-26
- 90%
- 03-19
First fall freeze
- 10%
- 10-31
- 20%
- 11-04
- 50%
- 11-13
- 80%
- 11-23
- 90%
- 11-30
Growing season length (days, 28°F threshold)
- Short year
- 196
- Median
- 224
- Long year
- 256
Source NOAA station
PLYMOUTH-KINGSTON, MA US
2.4 mi · 30 yrs of record (1991–2020) · 45 ft elev.
Data from PLYMOUTH-KINGSTON, MA US, 2.4 miles away with 30-year NOAA record (1991-2020).
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