Caledonia County, Vermont · Frost dates
Caledonia County frost dates.
First-frost, last-frost, and growing-season length for Caledonia County, Vermont. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-25
- 20%
- 05-21
- 50%
- 05-13
- 80%
- 05-04
- 90%
- 04-30
First fall frost
- 10%
- 09-21
- 20%
- 09-26
- 50%
- 10-03
- 80%
- 10-11
- 90%
- 10-16
28°F — killing freeze
Last spring freeze
- 10%
- 05-15
- 20%
- 05-11
- 50%
- 05-01
- 80%
- 04-24
- 90%
- 04-20
First fall freeze
- 10%
- 10-01
- 20%
- 10-04
- 50%
- 10-13
- 80%
- 10-24
- 90%
- 10-29
Growing season length (days, 28°F threshold)
- Short year
- 139
- Median
- 165
- Long year
- 192
Source NOAA station
SAINT JOHNSBURY, VT US
5.7 mi · 30 yrs of record (1991–2020) · 700 ft elev.
Data from SAINT JOHNSBURY, VT US, 5.7 miles away with 30-year NOAA record (1991-2020).
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