Belknap County, New Hampshire · Frost dates
Belknap County frost dates.
First-frost, last-frost, and growing-season length for Belknap County, New Hampshire. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-13
- 20%
- 05-07
- 50%
- 04-30
- 80%
- 04-23
- 90%
- 04-19
First fall frost
- 10%
- 10-04
- 20%
- 10-08
- 50%
- 10-18
- 80%
- 10-28
- 90%
- 11-03
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-25
- 50%
- 04-17
- 80%
- 04-10
- 90%
- 04-06
First fall freeze
- 10%
- 10-16
- 20%
- 10-21
- 50%
- 11-01
- 80%
- 11-08
- 90%
- 11-13
Growing season length (days, 28°F threshold)
- Short year
- 169
- Median
- 198
- Long year
- 221
Source NOAA station
LAKEPORT 2, NH US
2.9 mi · 30 yrs of record (1991–2020) · 500 ft elev.
Data from LAKEPORT 2, NH US, 2.9 miles away with 30-year NOAA record (1991-2020).
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