KETCHIKAN INTL AP, ALASKA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 38.4 41.3 43.6 49.3 55.1 60.4 64.0 64.5 59.1 50.8 43.5 39.9 50.8
Highest Mean Max. Temperature (F) 47.9 47.8 47.1 53.4 60.7 65.2 67.9 75.5 63.5 54.1 47.8 45.2 75.5
Year Highest Occurred 1981 1977 1983 1995 1977 1980 1990 1977 1995 1986 1981 1989 1977
Lowest Mean Max. Temperature (F) 31.1 34.2 37.6 42.9 49.4 55.3 60.4 61.0 54.7 47.0 35.0 33.0 31.1
Year Lowest Occurred 1972 1994 1971 1971 1971 1971 1984 1971 1992 1971 1985 1971 1972
Mean Temperature (F) 33.6 36.3 38.3 43.0 48.5 53.8 57.7 58.3 53.1 45.8 38.8 35.5 45.2
Highest Mean Temperature (F) 43.7 42.3 42.5 47.0 53.5 57.6 60.2 63.6 57.4 49.6 43.7 42.1 63.6
Year Highest Occurred 1981 1998 1984 1994 1993 1980 1990 1977 1995 1986 1980 1989 1977
Lowest Mean Temperature (F) 24.5 29.4 33.9 37.1 42.9 49.3 53.2 53.7 49.0 41.8 28.4 27.8 24.5
Year Lowest Occurred 1972 1975 1971 1972 1971 1971 1973 1973 1992 1971 1985 1971 1972
Mean Min. Temperature (F) 28.8 31.2 33.0 36.7 41.8 47.1 51.4 52.1 47.1 40.7 34.1 31.0 39.6
Highest Mean Min. Temperature (F) 39.5 37.6 38.4 41.4 46.8 51.5 54.6 56.3 51.2 45.0 39.5 39.0 56.3
Year Highest Occurred 1981 1998 1984 1994 1993 1994 1994 1994 1995 1986 1980 1989 1994
Lowest Mean Min. Temperature (F) 17.8 23.8 28.5 30.7 36.3 41.4 45.4 45.8 43.0 36.5 21.7 22.3 17.8
Year Lowest Occurred 1972 1975 1974 1972 1971 1973 1973 1973 1973 1973 1985 1977 1972
Mean Precipitation (in.) 11.94 11.33 11.15 9.85 8.70 6.95 6.43 9.14 12.18 20.29 15.73 13.71 137.40
Highest Precipitation (in.) 21.63 22.14 23.83 22.20 19.72 14.32 14.01 18.56 23.25 42.37 31.73 24.66 42.37
Year Highest Occurred 1989 1977 2000 1980 1999 1984 2000 1972 1992 1974 1987 1991 1974
Lowest Precipitation (in.) 2.79 0.82 2.97 2.03 2.52 1.78 0.36 1.30 2.83 10.40 5.16 4.14 0.36
Year Lowest Occurred 1995 1989 1983 1979 1995 1980 1996 1989 1993 1992 1985 1983 1996
Heating Degree Days (F) 973. 805. 814. 661. 514. 338. 228. 217. 358. 597. 786. 916. 7207.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 2. 9. 0. 0. 0. 0. 11.

Western Regional Climate Center, wrcc@dri.edu