ALYESKA, ALASKA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 24.9 28.4 34.7 42.4 51.7 59.9 64.8 61.8 54.3 41.3 30.4 26.3 43.4
Highest Mean Max. Temperature (F) 40.3 39.2 42.5 47.9 57.0 63.7 72.6 66.3 57.5 46.8 39.6 38.7 46.2
Year Highest Occurred 1977 1977 1984 1990 1981 1969 1972 1978 1965 1969 1979 1969 1986
Lowest Mean Max. Temperature (F) 6.5 14.3 25.6 37.5 43.8 53.7 59.8 57.5 50.5 33.3 20.1 8.6 39.1
Year Lowest Occurred 1971 1979 1972 1972 1971 1971 1981 1981 1981 1982 1963 1980 1971
Mean Temperature (F) 18.7 21.4 26.8 34.5 43.4 51.3 55.9 53.5 46.5 34.8 24.2 20.2 35.9
Highest Mean Temperature (F) 35.7 35.0 34.9 38.8 48.0 55.0 59.4 57.1 51.5 40.8 34.4 32.6 38.7
Year Highest Occurred 1977 1977 1984 1990 1981 1990 1970 1978 1979 1979 1976 1985 1987
Lowest Mean Temperature (F) 0.9 6.8 15.8 27.2 38.2 47.2 53.3 50.6 40.6 28.5 13.8 2.9 32.1
Year Lowest Occurred 1971 1979 1972 1972 1971 1971 1971 1967 1967 1982 1990 1980 1971
Mean Min. Temperature (F) 12.5 14.3 18.9 26.6 34.9 42.5 47.0 45.2 38.6 28.3 18.0 14.0 28.4
Highest Mean Min. Temperature (F) 31.0 30.7 28.6 31.1 39.0 46.4 52.6 50.1 46.0 35.2 29.5 27.8 32.1
Year Highest Occurred 1977 1977 1965 1980 1981 1990 1970 1989 1979 1979 1976 1985 1978
Lowest Mean Min. Temperature (F) -4.8 -0.7 6.0 16.8 30.5 39.4 42.7 38.9 30.2 21.4 6.6 -2.8 24.6
Year Lowest Occurred 1971 1979 1972 1972 1964 1976 1967 1967 1967 1968 1990 1980 1972
Mean Precipitation (in.) 5.83 3.93 3.45 3.13 2.04 2.15 2.44 3.93 6.00 6.50 4.24 4.86 48.50
Highest Precipitation (in.) 28.34 15.35 11.39 13.92 12.18 7.15 5.15 11.05 21.10 19.46 15.86 16.54 99.74
Year Highest Occurred 1981 1980 1981 1988 1971 1987 1981 1981 1967 1980 1979 1986 1981
Lowest Precipitation (in.) 0.16 0.21 0.67 0.33 0.64 0.55 0.75 0.72 0.70 1.77 0.29 0.49 18.12
Year Lowest Occurred 1974 1979 1968 1969 1981 1969 1988 1969 1969 1975 1975 1972 1962
Heating Degree Days (F) 1435. 1221. 1184. 915. 670. 411. 282. 357. 555. 936. 1224. 1389. 10579.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
Western Regional Climate Center, wrcc@dri.edu