Ketchikan AP Weather Records (USW00025325)
Record envelope, standing records and threshold days for Ketchikan AP (USW00025325), Alaska, United States, with 117 years of record.
Key Facts for Ketchikan AP
- Ketchikan AP (USW00025325) is a weather station in Alaska, United States at 55.36 latitude and -131.72 longitude, 26 m (84 ft) above sea level.
- The station reports from 1910 to 2026, 117 years of record.
- 1,464 records set at Ketchikan AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Ketchikan AP tied a daily record high minimum temperature of 8.3 C (46.9 F) on 3 May 2026.
About the Station
- Location: Alaska, United States, 55.36 latitude, -131.72 longitude.
- Elevation: 26 m (84 ft).
- Period of record: 1910 to 2026, 117 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 16.7 C (62.1 F) | -21.7 C (-7.1 F) | 11.1 C (52.0 F) | -7.2 C (19.0 F) |
| Feb | 17.2 C (63.0 F) | -16.7 C (1.9 F) | 10.6 C (51.1 F) | -8.3 C (17.1 F) |
| Mar | 20.6 C (69.1 F) | -16.1 C (3.0 F) | 8.3 C (46.9 F) | -8.3 C (17.1 F) |
| Apr | 23.9 C (75.0 F) | -11.1 C (12.0 F) | 16.1 C (61.0 F) | -1.7 C (28.9 F) |
| May | 33.9 C (93.0 F) | -3.9 C (25.0 F) | 17.8 C (64.0 F) | 2.2 C (36.0 F) |
| Jun | 35.6 C (96.1 F) | -0.6 C (30.9 F) | 27.8 C (82.0 F) | 6.1 C (43.0 F) |
| Jul | 33.3 C (91.9 F) | 2.2 C (36.0 F) | 24.4 C (75.9 F) | 7.8 C (46.0 F) |
| Aug | 31.7 C (89.1 F) | 1.1 C (34.0 F) | 27.2 C (81.0 F) | 8.9 C (48.0 F) |
| Sep | 26.7 C (80.1 F) | -2.2 C (28.0 F) | 22.8 C (73.0 F) | 4.4 C (39.9 F) |
| Oct | 22.2 C (72.0 F) | -8.3 C (17.1 F) | 14.4 C (57.9 F) | 6.1 C (43.0 F) |
| Nov | 18.3 C (64.9 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 16.7 C (62.1 F) | -18.3 C (-0.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1910 | 5 |
| 1911 | 18 |
| 1912 | 27 |
| 1913 | 54 |
| 1914 | 36 |
| 1915 | 20 |
| 1916 | 18 |
| 1917 | 39 |
| 1918 | 13 |
| 1919 | 20 |
| 1920 | 27 |
| 1921 | 14 |
| 1922 | 16 |
| 1923 | 17 |
| 1924 | 6 |
| 1925 | 23 |
| 1926 | 16 |
| 1927 | 26 |
| 1928 | 9 |
| 1929 | 12 |
| 1930 | 15 |
| 1931 | 12 |
| 1932 | 10 |
| 1933 | 23 |
| 1934 | 19 |
| 1935 | 21 |
| 1936 | 31 |
| 1937 | 10 |
| 1938 | 19 |
| 1939 | 9 |
| 1940 | 14 |
| 1941 | 5 |
| 1942 | 15 |
| 1943 | 14 |
| 1944 | 14 |
| 1945 | 4 |
| 1946 | 3 |
| 1947 | 13 |
| 1948 | 9 |
| 1949 | 19 |
| 1950 | 11 |
| 1951 | 4 |
| 1952 | 7 |
| 1953 | 17 |
| 1954 | 12 |
| 1955 | 20 |
| 1956 | 6 |
| 1957 | 10 |
| 1958 | 17 |
| 1959 | 5 |
| 1960 | 7 |
| 1961 | 7 |
| 1962 | 10 |
| 1963 | 18 |
| 1964 | 14 |
| 1965 | 18 |
| 1966 | 7 |
| 1967 | 8 |
| 1968 | 11 |
| 1969 | 10 |
| 1970 | 14 |
| 1971 | 18 |
| 1972 | 10 |
| 1973 | 15 |
| 1974 | 3 |
| 1975 | 7 |
| 1976 | 12 |
| 1977 | 19 |
| 1978 | 1 |
| 1979 | 5 |
| 1980 | 3 |
| 1981 | 15 |
| 1982 | 5 |
| 1983 | 8 |
| 1984 | 13 |
| 1985 | 2 |
| 1986 | 7 |
| 1987 | 7 |
| 1988 | 2 |
| 1989 | 13 |
| 1990 | 4 |
| 1991 | 11 |
| 1992 | 18 |
| 1993 | 14 |
| 1994 | 17 |
| 1995 | 10 |
| 1996 | 17 |
| 1997 | 8 |
| 1998 | 8 |
| 1999 | 6 |
| 2000 | 1 |
| 2001 | 9 |
| 2002 | 17 |
| 2003 | 11 |
| 2004 | 12 |
| 2005 | 8 |
| 2006 | 22 |
| 2007 | 6 |
| 2008 | 11 |
| 2009 | 15 |
| 2010 | 5 |
| 2011 | 6 |
| 2012 | 8 |
| 2013 | 1 |
| 2014 | 3 |
| 2015 | 14 |
| 2016 | 21 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 8 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 3 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1947-01-29 | Record low maximum temperature | Record low maximum temperature -15.0 C (5.0 F) |
| 1977-10-11 | Record daily precipitation | Record daily precipitation 221.2 mm (8.7 in) |
| 1981-08-10 | Record high minimum temperature | Record high minimum temperature 19.4 C (66.9 F) |
| 2009-07-30 | Record high minimum temperature | Record high minimum temperature 20.6 C (69.1 F) |
Wettest Day of Each Month
Oct: 221.2 mm (8.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 174.8 mm (6.9 in) | 30 January 1962 |
| Feb | 154.9 mm (6.1 in) | 18 February 1965 |
| Mar | 191.5 mm (7.5 in) | 13 March 1947 |
| Apr | 118.6 mm (4.7 in) | 7 April 2014 |
| May | 149.1 mm (5.9 in) | 29 May 1924 |
| Jun | 138.4 mm (5.4 in) | 22 June 2014 |
| Jul | 123.4 mm (4.9 in) | 24 July 2000 |
| Aug | 205.0 mm (8.1 in) | 5 August 1920 |
| Sep | 194.6 mm (7.7 in) | 15 September 2025 |
| Oct | 221.2 mm (8.7 in) | 11 October 1977 |
| Nov | 181.4 mm (7.1 in) | 18 November 1917 |
| Dec | 184.9 mm (7.3 in) | 10 December 1962 |
Period of Record Coverage
1910 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1910 | 120 | 33% | No |
| 1911 | 158 | 43% | No |
| 1912 | 240 | 66% | No |
| 1913 | 331 | 91% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 349 | 96% | Yes |
| 1916 | 364 | 99% | Yes |
| 1917 | 345 | 95% | Yes |
| 1918 | 364 | 100% | Yes |
| 1919 | 351 | 96% | Yes |
| 1920 | 360 | 98% | Yes |
| 1921 | 361 | 99% | Yes |
| 1922 | 364 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 359 | 98% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 362 | 99% | Yes |
| 1929 | 363 | 99% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 357 | 98% | Yes |
| 1950 | 356 | 98% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 357 | 98% | Yes |
| 1953 | 356 | 98% | Yes |
| 1954 | 356 | 98% | Yes |
| 1955 | 356 | 98% | Yes |
| 1956 | 359 | 98% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 335 | 92% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 362 | 99% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 123 | 34% | No |
| 1979 | 352 | 96% | Yes |
| 1980 | 296 | 81% | No |
| 1981 | 266 | 73% | No |
| 1982 | 115 | 32% | No |
| 1983 | 298 | 82% | No |
| 1984 | 362 | 99% | Yes |
| 1985 | 92 | 25% | No |
| 1986 | 120 | 33% | No |
| 1987 | 332 | 91% | Yes |
| 1988 | 266 | 73% | No |
| 1989 | 364 | 100% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 343 | 94% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 359 | 98% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 362 | 99% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 360 | 99% | Yes |
| 2026 | 282 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 May 2026 | Ketchikan AP, US | daily high min (Tie) | 8.3 C (46.9 F) | tie | 33 years | 5 of 100 (Routine) |
| 30 March 2026 | Ketchikan AP, US | daily low max (Tie) | 2.2 C (36.0 F) | tie | 24 years | 4 of 100 (Routine) |
| 23 March 2026 | Ketchikan AP, US | daily low max | 1.1 C (34.0 F) | 0.6 C (1.1 F) | 84 years | 37 of 100 (Notable) |
| 6 March 2026 | Ketchikan AP, US | daily high min (Tie) | 5.6 C (42.1 F) | tie | 19 years | 3 of 100 (Routine) |
| 3 March 2026 | Ketchikan AP, US | daily high min | 5.0 C (41.0 F) | 0.6 C (1.1 F) | 32 years | 20 of 100 (Routine) |
| 2 February 2026 | Ketchikan AP, US | daily high min (Tie) | 6.1 C (43.0 F) | tie | 91 years | 9 of 100 (Routine) |
| 13 January 2026 | Ketchikan AP, US | daily high min (Tie) | 7.8 C (46.0 F) | tie | 11 years | 3 of 100 (Routine) |
| 12 January 2026 | Ketchikan AP, US | daily high min | 7.2 C (45.0 F) | 0.5 C (0.9 F) | 84 years | 35 of 100 (Notable) |
| 11 January 2026 | Ketchikan AP, US | daily high min (Tie) | 7.2 C (45.0 F) | tie | 84 years | 8 of 100 (Routine) |
| 9 January 2026 | Ketchikan AP, US | daily rain | 114.0 mm (4.5 in) | 48.5 mm (1.9 in) | 4 years | 34 of 100 (Routine) |
| 29 December 2025 | Ketchikan AP, US | daily high min | 8.3 C (46.9 F) | 0.5 C (0.9 F) | 2 years | 11 of 100 (Routine) |
| 28 December 2025 | Ketchikan AP, US | daily rain | 103.1 mm (4.1 in) | 12.7 mm (0.5 in) | 48 years | 30 of 100 (Routine) |
| 23 December 2025 | Ketchikan AP, US | daily low max (Tie) | -5.6 C (21.9 F) | tie | 54 years | 6 of 100 (Routine) |
| 12 December 2025 | Ketchikan AP, US | daily low max | -4.4 C (24.1 F) | 0.5 C (0.9 F) | 111 years | 41 of 100 (Notable) |
| 11 December 2025 | Ketchikan AP, US | daily low max (Tie) | -3.9 C (25.0 F) | tie | 111 years | 10 of 100 (Routine) |
| 16 September 2025 | Ketchikan AP, US | daily high min | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 51 years | 29 of 100 (Routine) |
| 15 September 2025 | Ketchikan AP, US | monthly rain | 194.6 mm (7.7 in) | 2.8 mm (0.11 in) | 75 years | 43 of 100 (Notable) |
| 27 May 2025 | Ketchikan AP, US | daily rain | 111.8 mm (4.4 in) | 70.7 mm (2.8 in) | 23 years | 56 of 100 (Notable) |
| 1 May 2025 | Ketchikan AP, US | daily rain | 110.0 mm (4.3 in) | 16.5 mm (0.6 in) | 12 years | 23 of 100 (Routine) |
| 1 May 2025 | Ketchikan AP, US | daily high min (Tie) | 8.9 C (48.0 F) | tie | 94 years | 9 of 100 (Routine) |
Climate Trend
97 complete years, 1914 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1914 | 6.3 C | -1.37 C |
| 1916 | 5.8 C | -1.79 C |
| 1918 | 7.1 C | -0.58 C |
| 1920 | 6.1 C | -1.55 C |
| 1922 | 6.6 C | -1.00 C |
| 1923 | 8.0 C | +0.36 C |
| 1924 | 7.6 C | -0.07 C |
| 1925 | 7.6 C | -0.08 C |
| 1926 | 8.3 C | +0.66 C |
| 1927 | 6.3 C | -1.31 C |
| 1928 | 7.5 C | -0.09 C |
| 1929 | 6.9 C | -0.76 C |
| 1930 | 7.9 C | +0.29 C |
| 1931 | 8.5 C | +0.89 C |
| 1932 | 7.6 C | -0.04 C |
| 1933 | 7.0 C | -0.61 C |
| 1934 | 8.8 C | +1.19 C |
| 1935 | 7.6 C | -0.01 C |
| 1936 | 8.1 C | +0.46 C |
| 1937 | 7.8 C | +0.17 C |
| 1938 | 8.2 C | +0.57 C |
| 1939 | 8.0 C | +0.32 C |
| 1940 | 8.9 C | +1.31 C |
| 1941 | 8.7 C | +1.03 C |
| 1942 | 8.7 C | +1.02 C |
| 1943 | 7.8 C | +0.15 C |
| 1944 | 8.4 C | +0.81 C |
| 1945 | 7.6 C | -0.08 C |
| 1946 | 7.5 C | -0.16 C |
| 1947 | 7.8 C | +0.18 C |
| 1948 | 8.1 C | +0.48 C |
| 1949 | 7.9 C | +0.23 C |
| 1950 | 7.1 C | -0.56 C |
| 1951 | 7.5 C | -0.16 C |
| 1952 | 7.7 C | +0.03 C |
| 1953 | 8.3 C | +0.68 C |
| 1954 | 7.7 C | +0.06 C |
| 1955 | 6.5 C | -1.17 C |
| 1956 | 7.4 C | -0.26 C |
| 1957 | 8.0 C | +0.35 C |
| 1958 | 9.3 C | +1.67 C |
| 1959 | 8.0 C | +0.39 C |
| 1961 | 8.5 C | +0.83 C |
| 1962 | 8.1 C | +0.43 C |
| 1963 | 8.5 C | +0.82 C |
| 1964 | 6.8 C | -0.86 C |
| 1965 | 7.6 C | -0.02 C |
| 1966 | 7.5 C | -0.14 C |
| 1967 | 8.2 C | +0.53 C |
| 1968 | 7.7 C | +0.10 C |
| 1969 | 7.7 C | +0.10 C |
| 1970 | 7.2 C | -0.40 C |
| 1971 | 6.1 C | -1.51 C |
| 1972 | 6.4 C | -1.28 C |
| 1973 | 6.4 C | -1.26 C |
| 1974 | 7.3 C | -0.31 C |
| 1975 | 6.7 C | -0.92 C |
| 1976 | 7.2 C | -0.46 C |
| 1977 | 7.5 C | -0.11 C |
| 1979 | 7.6 C | -0.02 C |
| 1984 | 7.3 C | -0.37 C |
| 1989 | 7.8 C | +0.17 C |
| 1990 | 7.3 C | -0.37 C |
| 1991 | 7.4 C | -0.26 C |
| 1992 | 7.7 C | +0.04 C |
| 1993 | 8.6 C | +0.95 C |
| 1994 | 8.3 C | +0.62 C |
| 1995 | 8.3 C | +0.63 C |
| 1997 | 7.9 C | +0.27 C |
| 1998 | 7.6 C | -0.01 C |
| 1999 | 6.8 C | -0.79 C |
| 2000 | 7.3 C | -0.38 C |
| 2001 | 7.1 C | -0.52 C |
| 2002 | 6.9 C | -0.70 C |
| 2003 | 7.2 C | -0.42 C |
| 2004 | 7.9 C | +0.29 C |
| 2005 | 7.9 C | +0.28 C |
| 2006 | 6.7 C | -0.95 C |
| 2007 | 6.9 C | -0.71 C |
| 2008 | 6.7 C | -0.89 C |
| 2009 | 7.0 C | -0.62 C |
| 2010 | 8.2 C | +0.59 C |
| 2011 | 7.0 C | -0.64 C |
| 2012 | 6.9 C | -0.75 C |
| 2013 | 8.3 C | +0.70 C |
| 2014 | 8.4 C | +0.73 C |
| 2015 | 9.1 C | +1.46 C |
| 2016 | 9.1 C | +1.49 C |
| 2017 | 7.5 C | -0.14 C |
| 2018 | 8.7 C | +1.06 C |
| 2019 | 8.3 C | +0.64 C |
| 2020 | 7.6 C | -0.01 C |
| 2021 | 7.2 C | -0.41 C |
| 2022 | 7.9 C | +0.27 C |
| 2023 | 8.8 C | +1.14 C |
| 2024 | 8.2 C | +0.59 C |
| 2025 | 7.9 C | +0.28 C |
The fitted trend in annual mean temperature here over 1914 to 2025 is 0.03 C (-0.02 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.03 to 0.13) per decade. The slope is a straight line fitted to 97 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.03 C (-0.02 to 0.07) per decade | 0.05 F (-0.03 to 0.13) per decade | 1914 to 2025 | 97 | Not clearly different from zero |
| Mean daily maximum | -0.05 C (-0.10 to 0.00) per decade | -0.09 F (-0.17 to -0.01) per decade | 1914 to 2025 | 97 | Fall |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1914 to 2025 | 97 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1910 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.6 C (96.1 F) | 1913 | 27.2 C (81.0 F) | 117 |
| Coldest night (TNn) | -21.7 C (-7.1 F) | 1916 | -13.9 C (7.0 F) | 117 |
| Wettest day (Rx1day) | 221.2 mm (8.7 in) | 1977 | 126.0 mm (5.0 in) | 116 |
| Wettest five days (Rx5day) | 515.1 mm (20.3 in) | 1920 | 263.6 mm (10.4 in) | 116 |
| Longest dry spell (CDD) | 29 days | 1996 | 13 days | 116 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1910 | 22.2 C (72.0 F) |
| 1911 | 17.8 C (64.0 F) |
| 1912 | 33.9 C (93.0 F) |
| 1913 | 35.6 C (96.1 F) |
| 1914 | 30.0 C (86.0 F) |
| 1915 | 32.8 C (91.0 F) |
| 1916 | 27.2 C (81.0 F) |
| 1917 | 25.0 C (77.0 F) |
| 1918 | 29.4 C (84.9 F) |
| 1919 | 28.3 C (82.9 F) |
| 1920 | 28.3 C (82.9 F) |
| 1921 | 27.8 C (82.0 F) |
| 1922 | 28.3 C (82.9 F) |
| 1923 | 31.1 C (88.0 F) |
| 1924 | 26.7 C (80.1 F) |
| 1925 | 28.9 C (84.0 F) |
| 1926 | 28.9 C (84.0 F) |
| 1927 | 30.0 C (86.0 F) |
| 1928 | 28.9 C (84.0 F) |
| 1929 | 28.9 C (84.0 F) |
| 1930 | 27.2 C (81.0 F) |
| 1931 | 26.7 C (80.1 F) |
| 1932 | 26.7 C (80.1 F) |
| 1933 | 26.7 C (80.1 F) |
| 1934 | 30.0 C (86.0 F) |
| 1935 | 26.1 C (79.0 F) |
| 1936 | 27.2 C (81.0 F) |
| 1937 | 32.2 C (90.0 F) |
| 1938 | 26.1 C (79.0 F) |
| 1939 | 25.6 C (78.1 F) |
| 1940 | 26.1 C (79.0 F) |
| 1941 | 30.0 C (86.0 F) |
| 1942 | 31.1 C (88.0 F) |
| 1943 | 26.7 C (80.1 F) |
| 1944 | 30.0 C (86.0 F) |
| 1945 | 25.6 C (78.1 F) |
| 1946 | 26.7 C (80.1 F) |
| 1947 | 26.7 C (80.1 F) |
| 1948 | 31.7 C (89.1 F) |
| 1949 | 26.7 C (80.1 F) |
| 1950 | 30.6 C (87.1 F) |
| 1951 | 26.7 C (80.1 F) |
| 1952 | 30.0 C (86.0 F) |
| 1953 | 26.7 C (80.1 F) |
| 1954 | 26.7 C (80.1 F) |
| 1955 | 26.7 C (80.1 F) |
| 1956 | 27.8 C (82.0 F) |
| 1957 | 30.0 C (86.0 F) |
| 1958 | 31.7 C (89.1 F) |
| 1959 | 27.8 C (82.0 F) |
| 1960 | 26.1 C (79.0 F) |
| 1961 | 28.9 C (84.0 F) |
| 1962 | 25.6 C (78.1 F) |
| 1963 | 30.6 C (87.1 F) |
| 1964 | 26.1 C (79.0 F) |
| 1965 | 28.3 C (82.9 F) |
| 1966 | 28.3 C (82.9 F) |
| 1967 | 27.2 C (81.0 F) |
| 1968 | 27.2 C (81.0 F) |
| 1969 | 29.4 C (84.9 F) |
| 1970 | 23.9 C (75.0 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 27.8 C (82.0 F) |
| 1973 | 23.3 C (73.9 F) |
| 1974 | 26.7 C (80.1 F) |
| 1975 | 30.6 C (87.1 F) |
| 1976 | 30.6 C (87.1 F) |
| 1977 | 31.7 C (89.1 F) |
| 1978 | 15.6 C (60.1 F) |
| 1979 | 25.0 C (77.0 F) |
| 1980 | 27.2 C (81.0 F) |
| 1981 | 26.7 C (80.1 F) |
| 1982 | 18.9 C (66.0 F) |
| 1983 | 25.0 C (77.0 F) |
| 1984 | 25.0 C (77.0 F) |
| 1985 | 23.3 C (73.9 F) |
| 1986 | 22.2 C (72.0 F) |
| 1987 | 26.1 C (79.0 F) |
| 1988 | 26.1 C (79.0 F) |
| 1989 | 24.4 C (75.9 F) |
| 1990 | 27.8 C (82.0 F) |
| 1991 | 25.6 C (78.1 F) |
| 1992 | 26.1 C (79.0 F) |
| 1993 | 25.6 C (78.1 F) |
| 1994 | 25.0 C (77.0 F) |
| 1995 | 25.0 C (77.0 F) |
| 1996 | 25.0 C (77.0 F) |
| 1997 | 25.6 C (78.1 F) |
| 1998 | 26.1 C (79.0 F) |
| 1999 | 25.0 C (77.0 F) |
| 2000 | 24.4 C (75.9 F) |
| 2001 | 23.3 C (73.9 F) |
| 2002 | 28.9 C (84.0 F) |
| 2003 | 23.9 C (75.0 F) |
| 2004 | 28.9 C (84.0 F) |
| 2005 | 29.4 C (84.9 F) |
| 2006 | 25.6 C (78.1 F) |
| 2007 | 25.6 C (78.1 F) |
| 2008 | 25.6 C (78.1 F) |
| 2009 | 28.9 C (84.0 F) |
| 2010 | 28.3 C (82.9 F) |
| 2011 | 25.0 C (77.0 F) |
| 2012 | 27.2 C (81.0 F) |
| 2013 | 29.4 C (84.9 F) |
| 2014 | 26.1 C (79.0 F) |
| 2015 | 27.8 C (82.0 F) |
| 2016 | 25.6 C (78.1 F) |
| 2017 | 27.8 C (82.0 F) |
| 2018 | 28.9 C (84.0 F) |
| 2019 | 26.7 C (80.1 F) |
| 2020 | 27.2 C (81.0 F) |
| 2021 | 27.8 C (82.0 F) |
| 2022 | 25.6 C (78.1 F) |
| 2023 | 28.3 C (82.9 F) |
| 2024 | 29.4 C (84.9 F) |
| 2025 | 26.1 C (79.0 F) |
| 2026 | 27.8 C (82.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1910 | -9.4 C (15.1 F) |
| 1911 | -17.8 C (0.0 F) |
| 1912 | -7.8 C (18.0 F) |
| 1913 | -20.6 C (-5.1 F) |
| 1914 | -15.6 C (3.9 F) |
| 1915 | -6.7 C (19.9 F) |
| 1916 | -21.7 C (-7.1 F) |
| 1917 | -20.6 C (-5.1 F) |
| 1918 | -12.2 C (10.0 F) |
| 1919 | -15.6 C (3.9 F) |
| 1920 | -16.1 C (3.0 F) |
| 1921 | -11.7 C (10.9 F) |
| 1922 | -14.4 C (6.1 F) |
| 1923 | -13.3 C (8.1 F) |
| 1924 | -14.4 C (6.1 F) |
| 1925 | -11.1 C (12.0 F) |
| 1926 | -9.4 C (15.1 F) |
| 1927 | -14.4 C (6.1 F) |
| 1928 | -6.7 C (19.9 F) |
| 1929 | -14.4 C (6.1 F) |
| 1930 | -11.1 C (12.0 F) |
| 1931 | -8.3 C (17.1 F) |
| 1932 | -11.1 C (12.0 F) |
| 1933 | -16.7 C (1.9 F) |
| 1934 | -15.6 C (3.9 F) |
| 1935 | -15.6 C (3.9 F) |
| 1936 | -15.6 C (3.9 F) |
| 1937 | -12.8 C (9.0 F) |
| 1938 | -11.1 C (12.0 F) |
| 1939 | -13.3 C (8.1 F) |
| 1940 | -8.9 C (16.0 F) |
| 1941 | -10.6 C (12.9 F) |
| 1942 | -7.2 C (19.0 F) |
| 1943 | -15.0 C (5.0 F) |
| 1944 | -6.7 C (19.9 F) |
| 1945 | -8.3 C (17.1 F) |
| 1946 | -7.2 C (19.0 F) |
| 1947 | -20.0 C (-4.0 F) |
| 1948 | -15.0 C (5.0 F) |
| 1949 | -15.6 C (3.9 F) |
| 1950 | -16.7 C (1.9 F) |
| 1951 | -12.8 C (9.0 F) |
| 1952 | -15.0 C (5.0 F) |
| 1953 | -16.7 C (1.9 F) |
| 1954 | -12.8 C (9.0 F) |
| 1955 | -16.1 C (3.0 F) |
| 1956 | -16.1 C (3.0 F) |
| 1957 | -13.3 C (8.1 F) |
| 1958 | -12.8 C (9.0 F) |
| 1959 | -10.6 C (12.9 F) |
| 1960 | -5.6 C (21.9 F) |
| 1961 | -6.7 C (19.9 F) |
| 1962 | -10.0 C (14.0 F) |
| 1963 | -13.3 C (8.1 F) |
| 1964 | -18.3 C (-0.9 F) |
| 1965 | -18.3 C (-0.9 F) |
| 1966 | -15.0 C (5.0 F) |
| 1967 | -11.1 C (12.0 F) |
| 1968 | -15.6 C (3.9 F) |
| 1969 | -15.0 C (5.0 F) |
| 1970 | -15.6 C (3.9 F) |
| 1971 | -15.6 C (3.9 F) |
| 1972 | -17.2 C (1.0 F) |
| 1973 | -10.6 C (12.9 F) |
| 1974 | -13.9 C (7.0 F) |
| 1975 | -15.0 C (5.0 F) |
| 1976 | -13.9 C (7.0 F) |
| 1977 | -17.8 C (0.0 F) |
| 1978 | -16.1 C (3.0 F) |
| 1979 | -13.3 C (8.1 F) |
| 1980 | -10.6 C (12.9 F) |
| 1981 | -7.8 C (18.0 F) |
| 1982 | -17.8 C (0.0 F) |
| 1983 | -5.6 C (21.9 F) |
| 1984 | -13.3 C (8.1 F) |
| 1985 | 2.8 C (37.0 F) |
| 1986 | -6.7 C (19.9 F) |
| 1987 | -7.2 C (19.0 F) |
| 1988 | -5.6 C (21.9 F) |
| 1989 | -15.0 C (5.0 F) |
| 1990 | -13.3 C (8.1 F) |
| 1991 | -16.7 C (1.9 F) |
| 1992 | -14.4 C (6.1 F) |
| 1993 | -11.7 C (10.9 F) |
| 1994 | -16.7 C (1.9 F) |
| 1995 | -13.9 C (7.0 F) |
| 1996 | -13.9 C (7.0 F) |
| 1997 | -18.3 C (-0.9 F) |
| 1998 | -18.3 C (-0.9 F) |
| 1999 | -9.4 C (15.1 F) |
| 2000 | -14.4 C (6.1 F) |
| 2001 | -13.9 C (7.0 F) |
| 2002 | -14.4 C (6.1 F) |
| 2003 | -14.4 C (6.1 F) |
| 2004 | -15.6 C (3.9 F) |
| 2005 | -17.8 C (0.0 F) |
| 2006 | -15.0 C (5.0 F) |
| 2007 | -11.7 C (10.9 F) |
| 2008 | -15.6 C (3.9 F) |
| 2009 | -14.4 C (6.1 F) |
| 2010 | -8.3 C (17.1 F) |
| 2011 | -16.1 C (3.0 F) |
| 2012 | -18.9 C (-2.0 F) |
| 2013 | -8.2 C (17.2 F) |
| 2014 | -12.1 C (10.2 F) |
| 2015 | -7.1 C (19.2 F) |
| 2016 | -9.3 C (15.3 F) |
| 2017 | -13.8 C (7.2 F) |
| 2018 | -8.2 C (17.2 F) |
| 2019 | -11.0 C (12.2 F) |
| 2020 | -16.6 C (2.1 F) |
| 2021 | -17.7 C (0.1 F) |
| 2022 | -16.0 C (3.2 F) |
| 2023 | -9.3 C (15.3 F) |
| 2024 | -14.9 C (5.2 F) |
| 2025 | -11.1 C (12.0 F) |
| 2026 | -8.3 C (17.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1910 | 117.6 mm (4.6 in) |
| 1911 | 108.0 mm (4.3 in) |
| 1912 | 130.3 mm (5.1 in) |
| 1913 | 131.8 mm (5.2 in) |
| 1914 | 132.1 mm (5.2 in) |
| 1915 | 135.4 mm (5.3 in) |
| 1916 | 97.5 mm (3.8 in) |
| 1917 | 181.4 mm (7.1 in) |
| 1918 | 92.7 mm (3.6 in) |
| 1919 | 113.8 mm (4.5 in) |
| 1920 | 205.0 mm (8.1 in) |
| 1921 | 141.0 mm (5.6 in) |
| 1922 | 109.0 mm (4.3 in) |
| 1923 | 115.1 mm (4.5 in) |
| 1924 | 149.1 mm (5.9 in) |
| 1925 | 91.4 mm (3.6 in) |
| 1926 | 112.8 mm (4.4 in) |
| 1927 | 153.9 mm (6.1 in) |
| 1928 | 144.8 mm (5.7 in) |
| 1929 | 138.2 mm (5.4 in) |
| 1930 | 172.7 mm (6.8 in) |
| 1931 | 92.2 mm (3.6 in) |
| 1932 | 125.5 mm (4.9 in) |
| 1933 | 115.8 mm (4.6 in) |
| 1934 | 106.7 mm (4.2 in) |
| 1935 | 119.1 mm (4.7 in) |
| 1936 | 85.9 mm (3.4 in) |
| 1937 | 82.6 mm (3.3 in) |
| 1938 | 85.3 mm (3.4 in) |
| 1939 | 113.5 mm (4.5 in) |
| 1940 | 90.7 mm (3.6 in) |
| 1941 | 130.8 mm (5.1 in) |
| 1942 | 150.1 mm (5.9 in) |
| 1943 | 132.6 mm (5.2 in) |
| 1944 | 166.6 mm (6.6 in) |
| 1945 | 131.1 mm (5.2 in) |
| 1946 | 103.1 mm (4.1 in) |
| 1947 | 191.5 mm (7.5 in) |
| 1948 | 105.2 mm (4.1 in) |
| 1949 | 191.8 mm (7.6 in) |
| 1950 | 175.8 mm (6.9 in) |
| 1951 | 113.0 mm (4.4 in) |
| 1952 | 166.1 mm (6.5 in) |
| 1953 | 110.0 mm (4.3 in) |
| 1954 | 112.3 mm (4.4 in) |
| 1955 | 130.0 mm (5.1 in) |
| 1956 | 113.3 mm (4.5 in) |
| 1957 | 102.4 mm (4.0 in) |
| 1958 | 114.8 mm (4.5 in) |
| 1959 | 126.5 mm (5.0 in) |
| 1960 | 161.3 mm (6.4 in) |
| 1961 | 201.4 mm (7.9 in) |
| 1962 | 184.9 mm (7.3 in) |
| 1963 | 150.4 mm (5.9 in) |
| 1964 | 157.5 mm (6.2 in) |
| 1965 | 154.9 mm (6.1 in) |
| 1966 | 99.1 mm (3.9 in) |
| 1967 | 121.9 mm (4.8 in) |
| 1968 | 103.1 mm (4.1 in) |
| 1969 | 154.9 mm (6.1 in) |
| 1970 | 134.6 mm (5.3 in) |
| 1971 | 137.9 mm (5.4 in) |
| 1972 | 161.8 mm (6.4 in) |
| 1973 | 95.3 mm (3.8 in) |
| 1974 | 176.3 mm (6.9 in) |
| 1975 | 99.3 mm (3.9 in) |
| 1976 | 122.7 mm (4.8 in) |
| 1977 | 221.2 mm (8.7 in) |
| 1978 | 112.3 mm (4.4 in) |
| 1979 | 80.5 mm (3.2 in) |
| 1980 | 98.3 mm (3.9 in) |
| 1981 | 79.5 mm (3.1 in) |
| 1982 | 82.0 mm (3.2 in) |
| 1983 | 114.3 mm (4.5 in) |
| 1984 | 96.5 mm (3.8 in) |
| 1985 | 78.2 mm (3.1 in) |
| 1986 | 162.6 mm (6.4 in) |
| 1987 | 104.4 mm (4.1 in) |
| 1988 | 134.4 mm (5.3 in) |
| 1989 | 89.9 mm (3.5 in) |
| 1990 | 139.2 mm (5.5 in) |
| 1991 | 135.9 mm (5.4 in) |
| 1992 | 154.2 mm (6.1 in) |
| 1993 | 128.3 mm (5.1 in) |
| 1994 | 102.4 mm (4.0 in) |
| 1995 | 70.6 mm (2.8 in) |
| 1996 | 128.0 mm (5.0 in) |
| 1997 | n/a |
| 1998 | 116.8 mm (4.6 in) |
| 1999 | 105.9 mm (4.2 in) |
| 2000 | 127.3 mm (5.0 in) |
| 2001 | 99.1 mm (3.9 in) |
| 2002 | 122.4 mm (4.8 in) |
| 2003 | 134.9 mm (5.3 in) |
| 2004 | 119.9 mm (4.7 in) |
| 2005 | 153.7 mm (6.1 in) |
| 2006 | 96.8 mm (3.8 in) |
| 2007 | 97.5 mm (3.8 in) |
| 2008 | 115.1 mm (4.5 in) |
| 2009 | 130.0 mm (5.1 in) |
| 2010 | 152.9 mm (6.0 in) |
| 2011 | 127.0 mm (5.0 in) |
| 2012 | 120.1 mm (4.7 in) |
| 2013 | 130.3 mm (5.1 in) |
| 2014 | 146.3 mm (5.8 in) |
| 2015 | 183.1 mm (7.2 in) |
| 2016 | 151.4 mm (6.0 in) |
| 2017 | 111.5 mm (4.4 in) |
| 2018 | 87.4 mm (3.4 in) |
| 2019 | 142.2 mm (5.6 in) |
| 2020 | 152.9 mm (6.0 in) |
| 2021 | 145.0 mm (5.7 in) |
| 2022 | 100.8 mm (4.0 in) |
| 2023 | 169.9 mm (6.7 in) |
| 2024 | 162.1 mm (6.4 in) |
| 2025 | 194.6 mm (7.7 in) |
| 2026 | 114.0 mm (4.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1910 | 206.2 mm (8.1 in) |
| 1911 | 189.8 mm (7.5 in) |
| 1912 | 293.7 mm (11.6 in) |
| 1913 | 213.9 mm (8.4 in) |
| 1914 | 220.0 mm (8.7 in) |
| 1915 | 280.2 mm (11.0 in) |
| 1916 | 173.5 mm (6.8 in) |
| 1917 | 505.5 mm (19.9 in) |
| 1918 | 231.1 mm (9.1 in) |
| 1919 | 219.2 mm (8.6 in) |
| 1920 | 515.1 mm (20.3 in) |
| 1921 | 255.8 mm (10.1 in) |
| 1922 | 267.8 mm (10.5 in) |
| 1923 | 297.3 mm (11.7 in) |
| 1924 | 240.6 mm (9.5 in) |
| 1925 | 273.1 mm (10.8 in) |
| 1926 | 234.1 mm (9.2 in) |
| 1927 | 239.5 mm (9.4 in) |
| 1928 | 362.5 mm (14.3 in) |
| 1929 | 286.7 mm (11.3 in) |
| 1930 | 376.6 mm (14.8 in) |
| 1931 | 210.9 mm (8.3 in) |
| 1932 | 312.7 mm (12.3 in) |
| 1933 | 245.1 mm (9.6 in) |
| 1934 | 219.0 mm (8.6 in) |
| 1935 | 219.2 mm (8.6 in) |
| 1936 | 206.6 mm (8.1 in) |
| 1937 | 242.9 mm (9.6 in) |
| 1938 | 205.2 mm (8.1 in) |
| 1939 | 196.9 mm (7.8 in) |
| 1940 | 213.4 mm (8.4 in) |
| 1941 | 252.0 mm (9.9 in) |
| 1942 | 327.7 mm (12.9 in) |
| 1943 | 303.0 mm (11.9 in) |
| 1944 | 341.4 mm (13.4 in) |
| 1945 | 252.2 mm (9.9 in) |
| 1946 | 222.0 mm (8.7 in) |
| 1947 | 305.0 mm (12.0 in) |
| 1948 | 263.0 mm (10.4 in) |
| 1949 | 398.3 mm (15.7 in) |
| 1950 | 321.4 mm (12.7 in) |
| 1951 | 291.8 mm (11.5 in) |
| 1952 | 305.4 mm (12.0 in) |
| 1953 | 197.4 mm (7.8 in) |
| 1954 | 336.9 mm (13.3 in) |
| 1955 | 222.2 mm (8.7 in) |
| 1956 | 261.4 mm (10.3 in) |
| 1957 | 252.5 mm (9.9 in) |
| 1958 | 297.9 mm (11.7 in) |
| 1959 | 289.1 mm (11.4 in) |
| 1960 | 286.3 mm (11.3 in) |
| 1961 | 315.8 mm (12.4 in) |
| 1962 | 444.5 mm (17.5 in) |
| 1963 | 283.5 mm (11.2 in) |
| 1964 | 371.9 mm (14.6 in) |
| 1965 | 240.8 mm (9.5 in) |
| 1966 | 240.2 mm (9.5 in) |
| 1967 | 214.9 mm (8.5 in) |
| 1968 | 259.1 mm (10.2 in) |
| 1969 | 355.9 mm (14.0 in) |
| 1970 | 292.1 mm (11.5 in) |
| 1971 | 245.6 mm (9.7 in) |
| 1972 | 295.7 mm (11.6 in) |
| 1973 | 289.0 mm (11.4 in) |
| 1974 | 312.1 mm (12.3 in) |
| 1975 | 200.6 mm (7.9 in) |
| 1976 | 283.0 mm (11.1 in) |
| 1977 | 316.1 mm (12.4 in) |
| 1978 | 231.7 mm (9.1 in) |
| 1979 | 200.7 mm (7.9 in) |
| 1980 | 204.7 mm (8.1 in) |
| 1981 | 234.4 mm (9.2 in) |
| 1982 | 243.6 mm (9.6 in) |
| 1983 | 229.3 mm (9.0 in) |
| 1984 | 254.3 mm (10.0 in) |
| 1985 | 211.4 mm (8.3 in) |
| 1986 | 357.5 mm (14.1 in) |
| 1987 | 325.9 mm (12.8 in) |
| 1988 | 248.7 mm (9.8 in) |
| 1989 | 222.0 mm (8.7 in) |
| 1990 | 246.4 mm (9.7 in) |
| 1991 | 257.7 mm (10.1 in) |
| 1992 | 334.3 mm (13.2 in) |
| 1993 | 289.3 mm (11.4 in) |
| 1994 | 163.4 mm (6.4 in) |
| 1995 | 180.6 mm (7.1 in) |
| 1996 | 177.3 mm (7.0 in) |
| 1997 | n/a |
| 1998 | 215.1 mm (8.5 in) |
| 1999 | 246.4 mm (9.7 in) |
| 2000 | 290.1 mm (11.4 in) |
| 2001 | 222.2 mm (8.7 in) |
| 2002 | 342.8 mm (13.5 in) |
| 2003 | 273.6 mm (10.8 in) |
| 2004 | 338.1 mm (13.3 in) |
| 2005 | 293.1 mm (11.5 in) |
| 2006 | 265.2 mm (10.4 in) |
| 2007 | 269.9 mm (10.6 in) |
| 2008 | 293.7 mm (11.6 in) |
| 2009 | 264.2 mm (10.4 in) |
| 2010 | 315.0 mm (12.4 in) |
| 2011 | 289.7 mm (11.4 in) |
| 2012 | 258.5 mm (10.2 in) |
| 2013 | 341.9 mm (13.5 in) |
| 2014 | 238.8 mm (9.4 in) |
| 2015 | 350.5 mm (13.8 in) |
| 2016 | 262.5 mm (10.3 in) |
| 2017 | 314.0 mm (12.4 in) |
| 2018 | 188.5 mm (7.4 in) |
| 2019 | 288.2 mm (11.3 in) |
| 2020 | 370.1 mm (14.6 in) |
| 2021 | 213.1 mm (8.4 in) |
| 2022 | 222.9 mm (8.8 in) |
| 2023 | 287.6 mm (11.3 in) |
| 2024 | 454.7 mm (17.9 in) |
| 2025 | 314.8 mm (12.4 in) |
| 2026 | 284.7 mm (11.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1910 | 11 days |
| 1911 | 18 days |
| 1912 | 12 days |
| 1913 | 8 days |
| 1914 | 17 days |
| 1915 | 9 days |
| 1916 | 21 days |
| 1917 | 14 days |
| 1918 | 11 days |
| 1919 | 9 days |
| 1920 | 20 days |
| 1921 | 11 days |
| 1922 | 15 days |
| 1923 | 12 days |
| 1924 | 21 days |
| 1925 | 21 days |
| 1926 | 15 days |
| 1927 | 20 days |
| 1928 | 23 days |
| 1929 | 12 days |
| 1930 | 25 days |
| 1931 | 8 days |
| 1932 | 13 days |
| 1933 | 9 days |
| 1934 | 12 days |
| 1935 | 14 days |
| 1936 | 15 days |
| 1937 | 13 days |
| 1938 | 21 days |
| 1939 | 9 days |
| 1940 | 13 days |
| 1941 | 14 days |
| 1942 | 11 days |
| 1943 | 18 days |
| 1944 | 11 days |
| 1945 | 15 days |
| 1946 | 18 days |
| 1947 | 11 days |
| 1948 | 11 days |
| 1949 | 14 days |
| 1950 | 13 days |
| 1951 | 18 days |
| 1952 | 11 days |
| 1953 | 12 days |
| 1954 | 14 days |
| 1955 | 9 days |
| 1956 | 10 days |
| 1957 | 22 days |
| 1958 | 15 days |
| 1959 | 9 days |
| 1960 | 8 days |
| 1961 | 9 days |
| 1962 | 14 days |
| 1963 | 11 days |
| 1964 | 14 days |
| 1965 | 16 days |
| 1966 | 11 days |
| 1967 | 13 days |
| 1968 | 14 days |
| 1969 | 16 days |
| 1970 | 11 days |
| 1971 | 23 days |
| 1972 | 17 days |
| 1973 | 11 days |
| 1974 | 11 days |
| 1975 | 14 days |
| 1976 | 12 days |
| 1977 | 13 days |
| 1978 | 9 days |
| 1979 | 23 days |
| 1980 | 12 days |
| 1981 | 15 days |
| 1982 | 12 days |
| 1983 | 10 days |
| 1984 | 8 days |
| 1985 | 5 days |
| 1986 | 10 days |
| 1987 | 13 days |
| 1988 | 10 days |
| 1989 | 20 days |
| 1990 | 14 days |
| 1991 | 18 days |
| 1992 | 13 days |
| 1993 | 20 days |
| 1994 | 13 days |
| 1995 | 17 days |
| 1996 | 29 days |
| 1997 | n/a |
| 1998 | 13 days |
| 1999 | 10 days |
| 2000 | 11 days |
| 2001 | 13 days |
| 2002 | 12 days |
| 2003 | 14 days |
| 2004 | 14 days |
| 2005 | 11 days |
| 2006 | 8 days |
| 2007 | 9 days |
| 2008 | 14 days |
| 2009 | 17 days |
| 2010 | 13 days |
| 2011 | 9 days |
| 2012 | 13 days |
| 2013 | 12 days |
| 2014 | 14 days |
| 2015 | 18 days |
| 2016 | 13 days |
| 2017 | 12 days |
| 2018 | 16 days |
| 2019 | 17 days |
| 2020 | 13 days |
| 2021 | 16 days |
| 2022 | 12 days |
| 2023 | 14 days |
| 2024 | 18 days |
| 2025 | 19 days |
| 2026 | 15 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
97 years with a frostAcross 97 years with a frost, the median last spring frost at Ketchikan AP falls on 26 April and the median first autumn frost on 21 October, which leaves a median of 180 days between them.
In 1995 to 2025 the median growing season was 183 days. That is 6 days more than in 1914 to 1947.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1914 to 1947) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 April | 28 April | 25 April | 3 days earlier | -1.1 days per decade |
| First autumn frost | 21 October | 22 October | 20 October | 2 days earlier | +0.3 days per decade |
| Growing days | 180 days | 177 days | 183 days | 6 days more | +1.5 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
102 years, 1914 to 2025A day with at least 126.6 mm (5.0 in) of rain is expected about once in 2 years. A day with at least 223.1 mm (8.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 126.6 mm (5.0 in) | |
| 5 years | 155.7 mm (6.1 in) | |
| 10 years | 173.5 mm (6.8 in) | |
| 25 years | 194.6 mm (7.7 in) | |
| 50 years | 209.3 mm (8.2 in) | |
| 100 years | 223.1 mm (8.8 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1914 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 221.2 mm (8.7 in) in 1977; 205.0 mm (8.1 in) in 1920; 201.4 mm (7.9 in) in 1961.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Ketchikan AP had a mean temperature of 8.1 C (46.5 F) and 3,851.1 mm (151.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Coquitlam Lake (Canada, 899 km away), Ocean Falls (Canada, 427 km away) and Aberdeen 20NNE (United States, 1,057 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Coquitlam Lake | Canada | 899 km (559 mi) | 8.4 C (47.1 F) | 3,759.3 mm (148.0 in) | 1.02 |
| Ocean Falls | Canada | 427 km (265 mi) | 8.3 C (46.9 F) | 4,301.6 mm (169.4 in) | 1.99 |
| Aberdeen 20NNE | United States | 1,057 km (657 mi) | 9.1 C (48.3 F) | 3,417.8 mm (134.6 in) | 2.11 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).