Hampshire County, Massachusetts · Frost dates
Hampshire County frost dates.
First-frost, last-frost, and growing-season length for Hampshire County, Massachusetts. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-19
- 20%
- 05-15
- 50%
- 05-05
- 80%
- 04-26
- 90%
- 04-23
First fall frost
- 10%
- 09-28
- 20%
- 10-01
- 50%
- 10-08
- 80%
- 10-18
- 90%
- 10-23
28°F — killing freeze
Last spring freeze
- 10%
- 05-07
- 20%
- 05-02
- 50%
- 04-23
- 80%
- 04-13
- 90%
- 04-09
First fall freeze
- 10%
- 10-06
- 20%
- 10-10
- 50%
- 10-21
- 80%
- 10-31
- 90%
- 11-04
Growing season length (days, 28°F threshold)
- Short year
- 152
- Median
- 181
- Long year
- 209
Source NOAA station
AMHERST, MA US
7.2 mi · 30 yrs of record (1991–2020) · 145 ft elev.
Data from AMHERST, MA US, 7.2 miles away with 30-year NOAA record (1991-2020).
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