Prince of Wales-Hyder Census Area, Alaska · Frost dates
Prince of Wales-Hyder Census Area frost dates.
First-frost, last-frost, and growing-season length for Prince of Wales-Hyder Census Area, Alaska. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-14
- 20%
- 05-09
- 50%
- 04-29
- 80%
- 04-20
- 90%
- 04-13
First fall frost
- 10%
- 10-01
- 20%
- 10-06
- 50%
- 10-16
- 80%
- 10-29
- 90%
- 11-05
28°F — killing freeze
Last spring freeze
- 10%
- 04-28
- 20%
- 04-22
- 50%
- 04-09
- 80%
- 03-28
- 90%
- 03-20
First fall freeze
- 10%
- 10-14
- 20%
- 10-22
- 50%
- 11-05
- 80%
- 11-22
- 90%
- 11-28
Growing season length (days, 28°F threshold)
- Short year
- 169
- Median
- 210
- Long year
- 253
Source NOAA station
KLAWOCK AP, AK US
7.9 mi · 30 yrs of record (1991–2020) · 12 ft elev.
Data from KLAWOCK AP, AK US, 7.9 miles away with 30-year NOAA record (1991-2020).
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