Franklin County, Massachusetts · Frost dates
Franklin County frost dates.
First-frost, last-frost, and growing-season length for Franklin County, Massachusetts. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-15
- 20%
- 05-10
- 50%
- 05-01
- 80%
- 04-23
- 90%
- 04-19
First fall frost
- 10%
- 09-29
- 20%
- 10-02
- 50%
- 10-11
- 80%
- 10-21
- 90%
- 10-28
28°F — killing freeze
Last spring freeze
- 10%
- 05-04
- 20%
- 04-28
- 50%
- 04-18
- 80%
- 04-09
- 90%
- 04-06
First fall freeze
- 10%
- 10-08
- 20%
- 10-14
- 50%
- 10-25
- 80%
- 11-03
- 90%
- 11-07
Growing season length (days, 28°F threshold)
- Short year
- 157
- Median
- 190
- Long year
- 215
Source NOAA station
GREENFIELD #3, MA US
0.9 mi · 30 yrs of record (1991–2020) · 130 ft elev.
Data from GREENFIELD #3, MA US, 0.9 miles away with 30-year NOAA record (1991-2020).
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