| 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 | 32.0 | 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 | 149.4 |
|
More Ketchikan Weather Records
1910–2023
|
||
|---|---|---|
| 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 |
| Difference in high temperature 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 |
| 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 |
| Freezing temperatures High temperature ≤ 32 °F |
22 days | Jan 10–31, 1969 |
| High temperature ≥ 80 °F | 9 days | Aug 13–21, 1977 |
| Years | Station | Coordinates |
|---|---|---|
| 1910–2023 | Ketchikan International Airport | location |