Aleutians West Census Area, Alaska · Frost dates
Aleutians West Census Area frost dates.
First-frost, last-frost, and growing-season length for Aleutians West Census Area, Alaska. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: low · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 06-23
- 20%
- 06-14
- 50%
- 05-31
- 80%
- 05-17
- 90%
- 05-10
First fall frost
- 10%
- 09-17
- 20%
- 09-24
- 50%
- 10-05
- 80%
- 10-16
- 90%
- 10-21
28°F — killing freeze
Last spring freeze
- 10%
- 05-29
- 20%
- 05-23
- 50%
- 05-09
- 80%
- 04-29
- 90%
- 04-24
First fall freeze
- 10%
- 10-05
- 20%
- 10-12
- 50%
- 10-24
- 80%
- 11-05
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 129
- Median
- 168
- Long year
- 202
Source NOAA station
ST GEORGE ISLAND AP, AK US
540.9 mi · 30 yrs of record (1991–2020) · 125 ft elev.
No NOAA station within 75 miles meets the long-record threshold. Estimated from ST GEORGE ISLAND AP, AK US, 540.9 miles away. Consult your state extension service for local frost dates.
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