Kodiak Island Borough, Alaska · Frost dates

Kodiak Island Borough frost dates.

First-frost, last-frost, and growing-season length for Kodiak Island Borough, Alaska. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: low · USDA zone: 4a

32°F — light freeze

Last spring frost

10%
05-21
20%
05-16
50%
05-05
80%
04-25
90%
04-19

First fall frost

10%
09-22
20%
09-26
50%
10-03
80%
10-12
90%
10-17

28°F — killing freeze

Last spring freeze

10%
05-03
20%
04-28
50%
04-18
80%
04-08
90%
04-04

First fall freeze

10%
10-01
20%
10-05
50%
10-17
80%
10-30
90%
11-05

Growing season length (days, 28°F threshold)

Short year
151
Median
182
Long year
215

Source NOAA station

KODIAK AP, AK US

53.0 mi · 30 yrs of record (19912020) · 80 ft elev.

No NOAA station within 50 miles meets the long-record threshold. Estimated from KODIAK AP, AK US, 53 miles away. Consult your state extension service for local frost dates.

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