SHEMYA USAF BASE, ALASKA

Monthly Precipitation - Daily Extreme (inches)

(508419)

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 199503
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1949 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.64 0.53 1.14 0.83 1.14
1950 0.59 0.91 0.37 1.55 0.85 0.58 1.71 0.65 1.19 0.27 0.26 0.34 1.71
1951 0.32 0.54 0.18 0.29 0.34 0.06 0.45 0.49 0.19 0.54 0.18 0.17 a 0.54
1952 0.70 0.48 0.73 0.24 1.17 1.76 1.51 0.71 1.07 1.14 1.02 0.61 1.76
1953 0.49 0.47 1.21 0.66 0.40 1.56 1.40 1.07 1.29 0.97 1.59 1.03 1.59
1954 0.57 1.56 1.44 0.85 1.39 0.26 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 1.56
1955 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1956 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1957 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00
1958 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.20 0.13 0.07 0.07 0.30 0.90 0.90
1959 0.30 0.42 0.32 1.32 0.82 0.64 0.14 0.82 1.26 0.86 0.26 0.42 1.32
1960 0.39 0.39 0.26 0.33 0.51 0.17 0.76 0.35 1.35 0.55 0.33 0.45 1.35
1961 0.23 0.37 0.11 0.41 0.71 1.06 0.61 1.51 0.47 0.95 0.50 0.56 1.51
1962 0.53 0.50 0.33 0.08 0.39 1.02 0.55 1.66 0.79 5.20 0.74 1.05 5.20
1963 0.29 0.10 0.45 0.27 0.39 0.58 0.54 2.24 0.51 0.61 0.82 0.26 2.24
1964 0.26 b 0.24 0.18 0.31 0.57 0.74 0.73 0.65 0.95 1.27 1.74 0.88 1.74
1965 0.55 0.38 0.38 0.35 0.46 0.31 0.87 0.86 0.56 0.88 0.82 1.15 1.15
1966 0.31 0.25 0.18 0.71 0.59 0.20 0.63 0.67 0.34 0.28 1.17 0.39 1.17
1967 0.88 0.79 0.71 0.66 0.77 0.45 1.81 0.61 1.99 0.90 0.54 0.29 1.99
1968 0.32 0.19 0.26 0.14 0.45 0.29 0.19 1.05 0.58 0.46 0.24 0.67 1.05
1969 0.83 0.19 0.38 1.23 0.62 0.18 0.35 1.46 0.80 0.92 0.74 0.43 1.46
1970 0.34 0.29 0.25 0.60 0.42 0.37 0.80 0.99 1.09 0.75 1.31 0.46 1.31
1971 0.66 0.23 0.97 0.78 0.32 0.88 1.14 1.75 1.21 1.21 1.26 0.29 1.75
1972 0.64 0.34 0.59 0.87 0.62 0.97 0.81 0.65 0.38 0.84 0.59 0.89 0.97
1973 0.35 0.58 0.52 0.73 c 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.73
1974 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.36 0.37 0.50 1.58 0.59 0.78 0.58 0.81 1.58
1975 0.42 0.46 0.38 0.74 0.52 0.64 0.51 0.36 0.87 1.16 1.48 0.77 1.48
1976 0.73 1.08 0.52 0.53 0.34 0.80 0.48 0.79 0.73 0.64 1.13 0.35 1.13
1977 0.19 0.44 e 0.34 0.27 0.31 0.40 0.87 0.67 0.72 1.22 9999.00 z 9999.00 z 1.22
1978 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.99 1.59 0.81 1.60 0.69 1.60
1979 0.19 0.49 0.28 0.76 0.96 1.29 1.00 0.94 1.00 1.03 0.71 0.60 1.29
1980 0.54 0.64 0.34 0.36 0.80 0.56 0.84 0.88 0.49 0.60 1.70 1.30 1.70
1981 0.36 0.46 0.43 1.17 0.19 0.06 0.64 1.07 0.53 0.39 1.60 0.47 1.60
1982 0.48 0.78 0.58 0.76 0.42 0.66 0.27 1.51 0.71 1.00 1.15 1.03 1.51
1983 0.23 0.13 0.12 0.35 0.67 0.46 0.40 0.88 0.87 0.76 0.62 0.38 0.88
1984 0.50 0.29 0.17 0.26 0.15 0.67 1.24 0.87 0.72 0.75 a 0.75 0.63 1.24
1985 0.85 0.36 0.60 0.30 0.20 0.45 0.30 1.21 0.79 0.90 0.53 0.38 1.21
1986 0.46 0.25 0.65 0.51 0.48 0.34 1.48 0.26 1.32 0.55 1.01 0.48 1.48
1987 1.23 0.96 0.45 0.37 0.31 0.81 1.89 2.07 0.35 0.49 0.33 1.57 2.07
1988 0.14 0.20 0.34 0.31 0.22 0.95 0.43 0.48 0.41 0.59 0.73 0.17 0.95
1989 0.49 0.59 0.16 0.15 0.90 0.58 0.42 9999.00 z 0.73 1.13 0.55 0.25 1.13
1990 0.41 0.41 0.34 0.25 0.47 0.31 0.70 2.01 0.41 0.52 0.30 0.32 2.01
1991 0.49 0.84 0.39 0.17 0.50 0.65 1.28 0.77 0.75 0.42 0.59 0.23 1.28
1992 0.47 0.43 0.51 9999.00 z 9999.00 z 0.13 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.50 g 0.29 0.51
1993 9999.00 z 0.48 9999.00 z 0.08 0.29 1.88 1.09 0.17 2.08 0.50 0.28 a 0.98 2.08
1994 0.73 0.32 0.77 0.23 0.70 0.64 0.85 9999.00 z 0.42 1.05 2.46 0.96 2.46
1995 0.76 0.36 0.21 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.76
Period of Record Statistics
MEAN 0.49 0.48 0.45 0.52 0.54 0.63 0.80 0.97 0.82 0.86 0.86 0.62 1.55
S.D. 0.23 0.29 0.29 0.36 0.27 0.43 0.47 0.53 0.45 0.76 0.53 0.34 0.76
SKEW 0.92 1.66 1.65 1.08 1.09 1.18 0.76 0.68 0.97 4.74 0.88 0.76 3.47
MAX 1.23 1.56 1.44 1.55 1.39 1.88 1.89 2.24 2.08 5.20 2.46 1.57 5.20
MIN 0.14 0.10 0.11 0.08 0.15 0.06 0.14 0.13 0.07 0.07 0.18 0.17 0.54
NO YRS 39 40 39 38 38 39 38 37 40 40 39 40 32