Norfolk County, Massachusetts · Frost dates
Norfolk County frost dates.
First-frost, last-frost, and growing-season length for Norfolk County, Massachusetts. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-11
- 20%
- 05-06
- 50%
- 04-25
- 80%
- 04-15
- 90%
- 04-09
First fall frost
- 10%
- 09-28
- 20%
- 10-01
- 50%
- 10-09
- 80%
- 10-22
- 90%
- 10-30
28°F — killing freeze
Last spring freeze
- 10%
- 04-27
- 20%
- 04-19
- 50%
- 04-08
- 80%
- 03-31
- 90%
- 03-26
First fall freeze
- 10%
- 10-06
- 20%
- 10-10
- 50%
- 10-23
- 80%
- 11-03
- 90%
- 11-09
Growing season length (days, 28°F threshold)
- Short year
- 162
- Median
- 198
- Long year
- 228
Source NOAA station
NORWOOD MEM AP, MA US
1.4 mi · 30 yrs of record (1991–2020) · 50 ft elev.
Data from NORWOOD MEM AP, MA US, 1.4 miles away with 30-year NOAA record (1991-2020).
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