KETCHIKAN, ALASKA

Monthly Precipitation - Daily Extreme (inches)

(504590)

File last updated on Jun 7, 2013
*** Note *** Provisional Data *** After Year/Month 201305
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 7.55 4.70 g 3.58 a 1.67 7.55
1950 0.75 1.94 1.55 2.43 1.81 c 1.05 3.20 6.92 4.20 2.07 2.90 2.10 f 6.92
1951 2.43 2.44 2.33 2.00 2.00 4.45 2.25 3.02 1.80 4.05 1.37 4.35 4.45
1952 2.04 g 1.68 a 3.50 2.37 2.61 2.42 2.27 2.62 6.54 2.00 3.37 2.32 6.54
1953 1.92 3.48 2.56 2.90 2.02 1.04 2.20 1.48 3.87 c 4.33 d 3.07 2.89 4.33
1954 2.27 4.30 1.98 1.94 1.68 i 1.06 1.77 0.33 2.91 4.42 2.62 2.81 4.42
1955 3.41 2.61 1.22 e 4.10 1.91 c 1.64 0.53 5.12 2.78 3.67 4.73 1.24 5.12
1956 1.09 1.75 2.06 3.38 2.51 1.74 1.24 4.21 1.59 2.99 c 4.46 3.04 4.46
1957 0.78 2.05 1.19 2.20 1.33 1.26 2.69 3.83 2.70 3.65 4.03 2.37 4.03
1958 3.10 1.76 0.75 4.50 2.58 0.45 2.85 3.40 1.83 4.52 1.45 1.74 4.52
1959 1.51 1.96 2.29 2.25 2.40 1.99 1.54 2.80 3.20 3.94 3.10 4.98 4.98
1960 2.67 9999.00 z 2.07 b 2.08 1.19 0.73 3.97 1.75 3.00 4.76 2.31 6.35 6.35
1961 2.33 3.60 2.05 2.06 2.33 1.30 2.05 a 7.93 1.64 4.78 4.01 2.40 7.93
1962 6.88 0.40 2.16 2.60 0.87 3.75 1.28 1.93 2.15 2.90 2.06 7.28 7.28
1963 4.62 3.05 0.95 2.55 1.53 2.15 1.25 0.47 5.92 2.80 2.16 3.05 5.92
1964 3.57 d 2.33 2.00 1.92 2.07 1.06 1.90 3.34 1.80 6.20 2.30 2.61 6.20
1965 3.50 6.10 2.40 1.90 1.80 b 1.80 0.70 3.38 1.10 3.12 2.90 2.05 6.10
1966 3.90 2.30 3.40 1.30 3.22 1.67 1.23 2.67 3.70 2.70 2.05 3.13 3.90
1967 2.40 2.20 0.43 1.10 1.80 2.05 3.75 4.80 2.90 2.40 1.80 2.16 4.80
1968 3.85 3.04 2.12 3.95 0.85 0.65 1.63 2.44 3.20 4.06 3.10 1.90 4.06
1969 1.80 2.20 1.60 2.32 1.76 1.90 3.10 1.75 2.15 2.33 6.10 2.93 6.10
1970 2.30 1.90 1.90 2.40 3.21 4.96 1.90 3.80 3.70 5.30 1.45 2.08 5.30
1971 2.10 2.26 2.10 2.80 1.40 1.75 0.50 5.43 2.03 5.01 3.75 1.98 a 5.43
1972 3.75 4.25 3.33 3.80 2.81 1.17 2.29 3.18 4.65 6.37 1.69 2.28 6.37
1973 2.59 2.06 2.10 0.95 3.75 1.96 2.84 2.02 3.52 2.25 1.21 3.55 3.75
1974 1.67 2.32 0.90 1.90 2.51 1.26 1.25 2.16 1.86 6.94 3.26 2.74 6.94
1975 2.17 3.20 2.10 A 1.22 1.61 1.42 2.65 1.19 3.08 1.61 2.58 3.91 3.91
1976 2.21 2.42 2.76 2.82 2.27 0.86 1.88 4.83 2.66 2.97 4.55 3.56 4.83
1977 2.06 4.82 2.16 2.21 0.96 1.64 1.99 1.93 2.00 8.71 2.60 1.53 8.71
1978 2.77 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 4.42 2.13 1.62 4.42
1979 1.71 1.85 0.90 0.58 2.65 2.00 2.21 1.18 2.18 3.02 3.17 b 4.26 A 3.17
1980 0.86 A 1.72 2.40 3.12 2.01 0.66 9999.00 z 1.68 A 9999.00 z 3.87 2.14 2.12 A 3.87
1981 0.91 9999.00 z 2.08 2.32 9999.00 z 2.39 1.46 2.61 3.13 2.20 2.73 1.58 3.13
1982 0.75 b 9999.00 z 9999.00 z 2.63 A 9999.00 z 9999.00 z 9999.00 z 9999.00 z 1.80 3.23 9999.00 z 9999.00 z 3.23
1983 2.95 1.93 0.65 1.64 2.16 a 1.83 a 3.44 A 2.91 2.57 4.50 9999.00 z 9999.00 z 4.50
1984 3.80 1.92 a 1.95 1.12 1.74 3.44 1.45 2.50 1.63 3.43 3.40 c 2.91 c 3.80
1985 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.50 2.92 9999.00 z 9999.00 z 9999.00 z 9999.00 z 2.92
1986 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 5.47 6.40 a 3.54 2.25 6.40
1987 3.78 1.51 9999.00 z 1.99 2.57 2.65 0.51 2.52 3.49 2.10 4.11 2.21 A 4.11
1988 9999.00 z 9999.00 z 9999.00 z 2.77 2.15 2.82 3.49 3.15 2.57 3.72 5.29 1.65 5.29
1989 3.07 0.28 1.11 0.54 0.95 1.19 0.48 0.51 2.24 2.95 3.54 3.45 3.54
1990 1.67 2.94 2.18 3.06 1.54 2.11 1.30 0.70 b 2.30 3.01 2.86 5.48 5.48
1991 2.89 2.92 1.98 1.70 1.69 1.14 1.18 2.41 0.84 2.10 2.95 5.35 5.35
1992 5.01 1.87 1.48 2.66 2.67 0.72 a 0.82 2.57 6.07 1.59 3.06 1.58 6.07
1993 4.07 4.41 1.26 0.46 2.24 0.73 2.02 0.83 0.90 5.05 3.55 2.01 a 5.05
1994 1.48 1.56 2.66 1.43 3.88 2.17 0.75 1.23 4.03 2.39 1.97 2.00 4.03
1995 1.17 2.05 1.80 1.20 0.70 0.83 1.37 1.51 1.81 2.61 b 2.78 2.41 2.78
1996 1.35 1.55 1.86 2.20 1.39 1.51 0.24 5.04 3.03 2.43 1.20 1.59 v 5.04
1997 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
1998 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
1999 9999.00 z 9999.00 z 1.58 2.42 3.34 1.79 2.19 3.88 4.17 3.09 3.49 2.10 4.17
2000 3.54 2.22 3.75 3.52 2.50 0.70 4.86 3.91 3.02 2.50 5.01 2.23 5.01
2001 3.78 3.07 1.34 3.03 3.12 2.80 2.37 2.64 3.90 3.36 1.70 3.58 3.90
2002 1.27 1.94 2.64 0.56 3.90 3.80 1.08 4.82 2.12 2.95 4.21 4.00 4.82
2003 2.62 a 2.17 2.72 1.57 4.25 1.38 1.49 2.68 3.23 2.91 5.31 3.51 5.31
2004 4.72 2.73 2.14 2.29 1.91 1.35 2.71 1.62 3.01 4.45 3.60 3.30 4.72
2005 3.48 3.91 3.53 1.21 1.10 1.92 3.71 2.81 2.93 3.51 6.05 3.07 6.05
2006 1.39 1.87 1.15 3.81 2.14 2.18 2.12 2.40 3.26 3.09 3.67 3.53 3.81
2007 3.07 2.11 2.71 3.22 1.91 0.87 1.31 1.81 1.62 3.84 1.48 2.29 3.84
2008 1.60 2.51 3.19 4.40 1.86 2.97 1.88 3.42 1.36 4.53 2.68 1.71 4.53
2009 1.80 4.68 2.46 2.07 1.50 2.40 0.97 2.03 5.12 3.27 2.63 1.65 5.12
2010 6.02 3.08 3.26 1.32 1.21 1.69 1.50 2.81 2.93 4.56 4.15 1.19 6.02
2011 2.01 3.17 1.63 1.53 2.90 0.72 3.69 4.63 5.00 3.47 2.93 1.66 5.00
2012 2.35 1.98 2.18 1.71 4.73 2.18 2.34 1.33 2.28 2.53 3.27 1.44 4.73
2013 3.61 1.96 1.26 1.41 a 3.68 e 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 3.68
Period of Record Statistics
MEAN 2.65 2.52 2.03 2.23 2.21 1.79 1.93 2.82 3.02 3.63 3.10 2.79 5.08
S.D. 1.31 1.06 0.77 0.96 0.90 0.96 1.02 1.52 1.40 1.38 1.16 1.27 1.24
SKEW 0.85 1.01 0.17 0.35 0.68 1.21 0.60 0.95 1.09 1.24 0.54 1.46 0.76
MAX 6.88 6.10 3.75 4.50 4.73 4.96 4.86 7.93 7.55 8.71 6.10 7.28 8.71
MIN 0.75 0.28 0.43 0.46 0.70 0.45 0.24 0.33 0.84 1.59 1.20 1.19 2.78
NO YRS 57 54 56 59 56 57 57 58 59 60 59 57 43