SHEMYA USAF BASE, ALASKA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 32.6 33.5 34.8 38.1 41.6 45.1 49.3 51.7 50.9 45.6 39.6 34.7 41.5
Highest Mean Max. Temperature (F) 35.8 39.4 39.5 40.7 46.7 49.2 52.2 55.4 53.9 47.9 43.0 40.2 55.4
Year Highest Occurred 1976 1997 1996 1998 1997 1997 1997 1981 1986 1986 1990 2000 1981
Lowest Mean Max. Temperature (F) 25.3 26.7 29.8 35.6 37.8 41.0 46.4 48.8 48.4 43.3 35.8 28.0 25.3
Year Lowest Occurred 2000 1999 1999 1976 1973 1978 1971 1971 1992 1979 1977 1999 2000
Mean Temperature (F) 30.0 31.2 32.2 35.4 38.9 42.7 47.0 49.5 48.1 42.6 36.8 32.0 38.9
Highest Mean Temperature (F) 34.5 38.2 37.0 37.5 42.5 45.7 49.7 52.8 51.0 45.1 41.0 38.0 52.8
Year Highest Occurred 1978 1997 1996 1990 1997 1997 1997 1981 1986 1985 2000 2000 1981
Lowest Mean Temperature (F) 22.5 23.6 27.3 33.0 35.9 39.4 44.4 46.6 44.5 39.6 32.6 24.0 22.5
Year Lowest Occurred 2000 1999 1999 1988 1973 1980 1971 1971 1992 1980 1977 1999 2000
Mean Min. Temperature (F) 27.4 28.9 29.5 32.7 36.1 40.3 44.7 47.3 45.2 39.6 34.0 29.3 36.3
Highest Mean Min. Temperature (F) 33.7 36.9 34.4 34.9 38.3 42.8 47.2 50.2 48.6 42.9 39.1 35.7 50.2
Year Highest Occurred 1978 1997 1996 1978 1997 1991 1997 1981 1995 1991 2000 2000 1981
Lowest Mean Min. Temperature (F) 19.7 20.5 24.2 29.8 33.1 37.2 42.3 44.4 40.5 35.5 29.1 19.9 19.7
Year Lowest Occurred 2000 1999 1977 1988 1971 1980 1971 1971 1992 1980 1972 1999 2000
Mean Precipitation (in.) 2.56 2.22 2.13 1.76 1.62 1.99 2.57 3.86 3.09 3.56 3.98 3.10 32.44
Highest Precipitation (in.) 5.63 4.48 3.84 3.88 6.56 4.67 5.21 9.36 6.26 8.10 7.99 5.51 9.36
Year Highest Occurred 1987 1977 1998 1979 1995 1993 1984 1990 1995 1975 1975 1987 1990
Lowest Precipitation (in.) 0.84 0.77 0.58 0.48 0.52 0.14 0.82 0.71 1.67 1.66 1.35 1.01 0.14
Year Lowest Occurred 1996 1972 1989 1993 2000 1981 1982 1993 2000 1996 1993 1988 1981
Heating Degree Days (F) 1084. 947. 1002. 888. 811. 669. 559. 481. 509. 695. 847. 1024. 9516.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.

Western Regional Climate Center, wrcc@dri.edu