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Ketchikan May Weather

Averages and records for weather in Ketchikan, Alaska in the month of May.

Typical Ketchikan May Weather 1991–2020
Average daily high	56.9 °F
Average daily low	42.7 °F
Average monthly precipitation	8.8 inches
Daily chance of precipitation	51.9%

Ketchikan May Weather Records 1910–2024
Highest temperature	93 °F	May 13, 1912
Lowest temperature	25 °F	May 6, 1913
Highest daily low	57 °F	May 24, 1953
Lowest daily high	35 °F	May 6, 1920
Hottest average high temperature	66.6 °F	1912
Coldest average high temperature	50.0 °F	1999
Most daily precipitation	5.9 inches	May 29, 1924
Most monthly precipitation	22.4 inches	2001

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
May 1	53.4	39.2	70	27
May 2	53.7	39.5	76	29
May 3	53.9	39.7	79	27
May 4	54.2	39.9	81	27
May 5	54.5	40.2	79	25
May 6	54.7	40.4	77	25
May 7	54.9	40.7	77	30
May 8	55.1	40.9	74	30
May 9	55.4	41.2	78	28
May 10	55.6	41.4	74	28
May 11	55.9	41.5	78	27
May 12	56.1	41.7	77	30
May 13	56.4	41.9	93	30
May 14	56.6	42.2	88	29
May 15	56.8	42.5	81	30
May 16	56.9	42.7	81	32
May 17	57.1	42.9	77	31
May 18	57.3	43.2	83	32
May 19	57.5	43.4	79	32
May 20	57.8	43.6	87	30
May 21	58.0	43.9	87	30
May 22	58.2	44.1	86	30
May 23	58.3	44.4	86	31
May 24	58.5	44.7	80	30
May 25	58.6	44.9	77	32
May 26	58.8	45.1	80	35
May 27	58.9	45.3	80	32
May 28	59.1	45.5	83	35
May 29	59.2	45.7	79	34
May 30	59.3	45.9	79	34
May 31	59.5	46.0	81	34

Weather Station Details

Years	Station	Coordinates
1910–2024	Ketchikan International Airport	location