Ketchikan Weather Records

Ketchikan, Alaska weather averages and records from 1910–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Ketchikan, Alaska was 96 °F which occurred on June 25, 1913.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Ketchikan, Alaska was -7 °F which occurred on January 23, 1916.
Lowest Temperatures: All-Time By Year
Ketchikan Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧
January 39.7 31.0 62 -7 16.4
February 41.0 31.1 63 2 11.4
March 43.6 31.9 69 3 11.4
April 49.7 36.6 75 12 10.2
May 56.9 42.7 93 25 8.8
June 61.3 48.7 96 31 6.9
July 64.3 52.8 92 36 7.2
August 64.7 52.9 89 34 11.4
September 59.0 47.9 80 28 14.4
October 51.1 40.9 72 17 18.2
November 43.8 35.2 65 5 17.2
December 40.4 32.2 62 -1 15.8
Entire year 51.4 40.4 96 -7 149.3
More Ketchikan Weather Records
1910–2024
Highest daily low 69 °F July 30, 2009
Lowest daily high 5 °F January 29, 1947
Greatest daily range
(Difference of high and low)
51 °F June 2, 1913
Greatest difference in daily high
over two conscutive days
34 °F May 23–24, 1914
Most daily precipitation 8.7 inches October 11, 1977
Most monthly precipitation 53.9 inches November 1917
Most yearly precipitation 196.0 inches 2005
Most yearly days with precipitation 292 1999
Earliest freeze September 16 1926
Earliest day ≥ 70 °F April 9 1959
Earliest day ≥ 80 °F May 4 1915
Latest freeze June 10 1911
Latest day ≥ 70 °F October 1 1923
Latest day ≥ 80 °F September 15 1937
Most days in a year < 0 °F 3 1947
Most days in a year < 32 °F 130 1927
Most days in a year ≥ 80 °F 16 1913
Most days in a year ≥ 90 °F 3 1912
Ketchikan Weather Streaks
Most consecutive days...
With precipitation 88 days Sep 19 – Dec 15, 1920
Without precipitation 29 days Jul 10 – Aug 7, 1996
High temperature at or
below freezing
22 days Jan 10–31, 1969
High temperature ≥ 80 °F 9 days Aug 13–21, 1977
Plant Hardiness Zone
7B
Ketchikan is in plant hardiness zone 7B
based on average yearly minimum temperature from 1991–2020
Facts About Ketchikan Weather
Ketchikan Weather by Year
More Ketchikan Weather
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Weather Station Details
Years Station Coordinates
1910–2024 Ketchikan International Airport location