Carroll County, New Hampshire · Frost dates
Carroll County frost dates.
First-frost, last-frost, and growing-season length for Carroll County, New Hampshire. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-30
- 20%
- 05-26
- 50%
- 05-16
- 80%
- 05-07
- 90%
- 05-03
First fall frost
- 10%
- 09-10
- 20%
- 09-15
- 50%
- 09-26
- 80%
- 10-03
- 90%
- 10-07
28°F — killing freeze
Last spring freeze
- 10%
- 05-19
- 20%
- 05-14
- 50%
- 05-04
- 80%
- 04-27
- 90%
- 04-24
First fall freeze
- 10%
- 09-21
- 20%
- 09-26
- 50%
- 10-04
- 80%
- 10-14
- 90%
- 10-20
Growing season length (days, 28°F threshold)
- Short year
- 125
- Median
- 153
- Long year
- 179
Source NOAA station
TAMWORTH 4, NH US
3.2 mi · 30 yrs of record (1991–2020) · 541 ft elev.
Data from TAMWORTH 4, NH US, 3.2 miles away with 30-year NOAA record (1991-2020).
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