Windham County, Vermont · Frost dates
Windham County frost dates.
First-frost, last-frost, and growing-season length for Windham County, Vermont. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-22
- 20%
- 05-18
- 50%
- 05-08
- 80%
- 04-29
- 90%
- 04-24
First fall frost
- 10%
- 09-22
- 20%
- 09-27
- 50%
- 10-03
- 80%
- 10-14
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-11
- 20%
- 05-04
- 50%
- 04-25
- 80%
- 04-15
- 90%
- 04-10
First fall freeze
- 10%
- 10-01
- 20%
- 10-05
- 50%
- 10-16
- 80%
- 10-31
- 90%
- 11-03
Growing season length (days, 28°F threshold)
- Short year
- 143
- Median
- 174
- Long year
- 207
Source NOAA station
WALPOLE 2S NEPP, NH US
14.8 mi · 30 yrs of record (1991–2020) · 604 ft elev.
Data from WALPOLE 2S NEPP, NH US, 14.8 miles away with 30-year NOAA record (1991-2020).
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