YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.55 | 0.12 | 0.37 | 0.44 | 0.58 | 0.46 | 0.58 | |||||||
1949 | 0.28 | 0.62 | 0.25 | 0.17 | 0.55 | 0.11 | 0.00 | 0.15 | 0.70 | 0.45 | 0.50 | 0.43 | 0.70 | |||||||||||||
1950 | 0.35 | 0.38 | 0.35 | 0.28 | 0.29 | 1.34 | 0.10 | 0.35 | 0.18 | 1.19 | 0.53 | 0.61 | 1.34 | |||||||||||||
1951 | 0.63 | 0.46 | 0.35 | 0.48 | 0.73 | 1.30 | 0.20 | 0.08 | 0.59 | 0.83 | 0.13 | 0.19 | 1.30 | |||||||||||||
1952 | 0.20 | 0.47 | 0.32 | 0.80 | 0.45 | 0.70 | 0.04 | 0.01 | 0.38 | 0.06 | 0.28 | 0.36 | 0.80 | |||||||||||||
1953 | 0.65 | 0.64 | 0.38 | 0.52 | 0.78 | 0.56 | 0.00 | 0.25 | 0.05 | 0.51 | 0.70 | 0.59 | 0.78 | |||||||||||||
1954 | 0.63 | 0.28 | 0.45 | 0.54 | 0.26 | 0.45 | 0.25 | 0.46 | 0.44 | 0.73 | 0.50 | 0.86 | 0.86 | |||||||||||||
1955 | 0.26 | 0.27 | 0.37 | 0.79 | 1.27 | 0.16 | 0.30 | 0.00 | 1.10 | 1.82 | 1.27 | 0.61 | 1.82 | |||||||||||||
1956 | 1.65 | 0.59 | 0.62 | 0.12 | 0.99 | 0.38 | 0.45 | A | 1.31 | A | 0.03 | 0.50 | A | 0.34 | 0.54 | 1.65 | ||||||||||
1957 | 0.40 | A | 0.56 | 0.40 | A | 0.97 | A | 0.90 | A | 0.62 | A | 0.02 | 0.24 | 0.53 | A | 0.88 | 1.11 | A | 0.52 | A | 0.88 | |||||
1958 | 1.06 | A | 0.48 | A | 0.38 | 0.72 | A | 1.33 | A | 0.40 | A | 0.02 | 0.00 | 0.27 | A | 0.30 | 0.51 | A | 1.24 | A | 0.38 | |||||
1959 | 0.82 | A | 0.98 | A | 0.48 | A | 0.50 | 0.87 | A | 0.52 | a | 0.03 | 0.75 | 1.22 | A | 0.52 | A | 0.22 | A | 0.21 | 0.75 | |||||
1960 | 0.35 | 0.44 | A | 0.68 | A | 0.44 | A | 0.66 | A | 0.86 | 0.00 | 0.52 | 0.78 | A | 0.77 | A | 0.96 | A | 0.48 | A | 0.86 | |||||
1961 | 0.54 | A | 1.11 | 0.66 | 0.82 | 0.44 | A | 0.33 | A | 0.00 | 0.17 | 0.41 | 0.72 | A | 0.98 | 0.70 | 1.11 | |||||||||
1962 | 0.40 | A | 0.25 | A | 0.87 | A | 0.39 | A | 0.70 | 0.19 | A | 0.01 | 0.42 | A | 1.07 | 1.15 | 0.47 | A | 1.28 | A | 1.15 | |||||
1963 | 0.11 | A | 9999.00 | z | 9999.00 | z | 0.14 | A | 0.30 | 0.14 | 0.53 | 0.08 | A | 0.25 | A | 0.39 | 0.84 | 0.50 | 0.84 | |||||||
1964 | 0.42 | 0.14 | 0.16 | A | 0.42 | 0.15 | A | 0.66 | A | 0.90 | 0.13 | 0.27 | 0.29 | 0.85 | 0.81 | 0.90 | ||||||||||
1965 | 0.95 | A | 0.51 | 0.20 | A | 0.66 | A | 0.63 | 0.85 | A | 0.32 | 0.95 | A | 0.21 | 0.46 | 0.42 | 0.10 | 0.63 | ||||||||
1966 | 0.89 | A | 0.34 | 0.59 | 0.13 | 0.20 | 0.52 | 1.87 | 0.35 | 0.10 | 0.46 | 0.74 | 0.88 | 1.87 | ||||||||||||
1967 | 0.52 | 0.18 | 0.60 | 0.40 | 0.74 | 0.23 | 0.00 | 0.00 | 0.45 | 0.84 | 0.68 | 0.41 | 0.84 | |||||||||||||
1968 | 0.23 | 0.81 | 0.48 | 0.27 | 0.38 | 0.39 | 0.30 | 0.40 | 0.52 | 0.56 | 1.27 | 0.89 | 1.27 | |||||||||||||
1969 | 1.19 | 0.23 | 0.25 | 1.42 | 0.38 | 0.62 | 0.02 | 0.00 | 0.22 | 0.45 | 0.54 | 0.56 | 1.42 | |||||||||||||
1970 | 1.53 | 1.33 | 0.76 | 1.32 | 0.21 | 0.61 | 0.13 | 0.14 | 1.06 | 0.73 | 0.82 | 0.17 | 1.53 | |||||||||||||
1971 | 0.89 | 0.36 | 0.41 | 0.48 | 1.43 | 1.28 | 0.75 | 0.21 | 1.27 | 0.47 | 1.33 | A | 2.09 | A | 1.43 | |||||||||||
1972 | 0.64 | 0.40 | 1.21 | 0.48 | 1.00 | 0.43 | 0.23 | 0.20 | 0.67 | 0.53 | 0.28 | 0.58 | 1.21 | |||||||||||||
1973 | 0.19 | 0.73 | 0.47 | 0.33 | 0.54 | 0.43 | 0.04 | 0.12 | 0.60 | 0.46 | 1.02 | 0.81 | A | 1.02 | ||||||||||||
1974 | 0.49 | 0.58 | A | 0.87 | A | 0.96 | 0.39 | 0.46 | 0.60 | 0.00 | 0.01 | 0.30 | 0.56 | 1.08 | 1.08 | |||||||||||
1975 | 1.04 | 0.28 | 0.48 | A | 0.40 | 0.29 | 0.28 | 0.18 | 0.55 | 0.00 | 0.45 | 0.74 | 0.62 | 1.04 | ||||||||||||
1976 | 0.33 | 0.75 | 0.56 | 0.53 | 0.41 | 0.20 | 0.35 | 0.49 | 0.10 | 0.42 | 1.28 | 0.32 | 1.28 | |||||||||||||
1977 | 0.45 | 0.22 | 0.40 | 0.23 | 0.33 | 0.37 | 0.35 | 1.44 | 0.38 | 0.18 | 0.55 | 0.62 | 1.44 | |||||||||||||
1978 | 0.36 | 0.27 | 0.43 | 1.18 | 0.36 | 0.31 | 0.30 | 1.25 | 0.37 | 0.11 | 0.51 | 0.96 | 1.25 | |||||||||||||
1979 | 0.41 | 0.36 | 0.58 | 0.50 | 9999.00 | z | 0.22 | 0.03 | 0.79 | 0.16 | 1.16 | 0.55 | 0.38 | 1.16 | ||||||||||||
1980 | 0.79 | 0.34 | 0.56 | 0.22 | 1.20 | 0.47 | 0.20 | 0.33 | 1.10 | 1.04 | 0.45 | 0.73 | 1.20 | |||||||||||||
1981 | 0.48 | 0.82 | 0.63 | 0.78 | 0.76 | 0.66 | 0.51 | 0.06 | 0.63 | 0.54 | 0.99 | 1.17 | 1.17 | |||||||||||||
1982 | 0.92 | 0.85 | 0.62 | 0.72 | 0.24 | 0.28 | 0.42 | 0.75 | 0.59 | 1.40 | 0.57 | 0.58 | 1.40 | |||||||||||||
1983 | 0.45 | 0.58 | 0.84 | 0.42 | 0.45 | 0.74 | 0.71 | 0.65 | 0.53 | 0.45 | 0.72 | 0.51 | 0.84 | |||||||||||||
1984 | 0.28 | 0.65 | 0.75 | 0.45 | 0.50 | 0.54 | 0.00 | 0.26 | 0.39 | 0.62 | 1.50 | 0.68 | 1.50 | |||||||||||||
1985 | 0.70 | 0.80 | 0.45 | 0.28 | 0.45 | 0.35 | 0.18 | 0.31 | 0.42 | 0.79 | 0.52 | 0.40 | 0.80 | |||||||||||||
1986 | 0.45 | 0.83 | 0.52 | 0.21 | 1.00 | 0.32 | 0.36 | 0.05 | 0.71 | 0.51 | 0.68 | 0.30 | A | 1.00 | ||||||||||||
1987 | 0.52 | a | 0.44 | 1.09 | 0.61 | 0.84 | 0.17 | 0.42 | 0.11 | 0.00 | 0.00 | 0.24 | d | 0.58 | 1.09 | |||||||||||
1988 | 1.30 | 0.78 | A | 0.49 | b | 0.70 | 1.20 | c | 0.30 | b | 0.08 | b | 0.00 | 0.30 | 0.10 | 0.58 | j | 0.40 | h | 1.30 | ||||||
1989 | 1.03 | e | 0.54 | A | 0.67 | c | 0.72 | A | 0.85 | e | 0.18 | 0.06 | 0.35 | 0.27 | 0.39 | 0.92 | A | 0.88 | 1.03 | |||||||
1990 | 0.35 | 0.40 | 0.74 | 1.14 | 0.58 | 0.23 | 0.10 | 0.79 | 0.07 | 0.74 | 0.76 | 0.44 | 1.14 | |||||||||||||
1991 | 0.30 | 0.24 | 0.77 | 0.45 | 1.61 | 1.06 | 0.10 | 1.15 | 0.01 | 0.90 | A | 0.94 | 0.64 | 1.61 | ||||||||||||
1992 | 0.27 | A | 0.39 | A | 0.15 | 0.50 | 0.25 | 0.44 | 2.10 | 1.16 | 0.99 | 0.36 | 0.88 | b | 0.36 | g | 2.10 | |||||||||
1993 | 0.55 | A | 0.36 | A | 0.33 | b | 1.17 | 1.19 | A | 0.80 | 0.78 | b | 0.62 | 0.01 | 0.21 | 0.25 | A | 0.59 | A | 1.17 | ||||||
1994 | 1.24 | A | 0.81 | A | 0.20 | b | 0.36 | A | 0.70 | 0.27 | 0.23 | 0.00 | 0.22 | 1.09 | b | 2.00 | j | 0.61 | A | 2.00 | ||||||
1995 | 0.82 | A | 0.36 | A | 0.97 | A | 1.09 | 0.32 | 0.58 | 0.25 | 0.66 | 0.51 | 0.90 | 1.02 | 0.59 | A | 1.09 | |||||||||
1996 | 0.70 | A | 0.83 | a | 0.94 | 1.10 | 0.84 | 0.31 | 0.00 | 0.00 | 0.40 | 0.58 | 1.70 | A | 1.11 | b | 1.11 | |||||||||
1997 | 0.91 | a | 0.80 | 0.66 | 0.68 | 0.37 | 0.55 | 0.38 | 0.02 | 0.35 | 0.44 | 0.31 | 0.50 | A | 0.91 | |||||||||||
1998 | 0.59 | b | 0.45 | A | 0.37 | 0.53 | 0.50 | 0.17 | 0.12 | 0.05 | 0.32 | 0.35 | 0.56 | 0.40 | 0.59 | |||||||||||
1999 | 0.44 | 0.33 | 0.35 | 0.43 | 0.72 | 0.25 | 0.01 | 0.24 | 0.00 | 0.55 | 0.43 | 0.40 | b | 0.72 | ||||||||||||
2000 | 0.53 | 0.95 | 1.20 | d | 0.44 | 1.86 | 0.61 | 0.09 | 0.00 | 0.62 | 0.70 | 0.33 | 0.48 | 1.86 | ||||||||||||
2001 | 0.65 | 0.57 | a | 0.29 | 0.69 | 0.64 | 0.27 | 0.03 | 0.01 | 0.18 | 0.58 | 0.53 | 0.16 | 0.69 | ||||||||||||
2002 | 0.30 | 0.58 | A | 0.75 | c | 0.24 | 0.52 | 0.56 | 0.28 | 0.00 | 0.24 | 0.29 | 0.50 | 0.84 | a | 0.84 | ||||||||||
2003 | 0.57 | 0.95 | 0.53 | 0.67 | 0.21 | 0.00 | 0.00 | 0.13 | 0.90 | 0.21 | 0.45 | 1.07 | A | 0.95 | ||||||||||||
2004 | 0.89 | 0.67 | 0.34 | 0.46 | 0.55 | 0.98 | 0.08 | 0.50 | 0.17 | 0.52 | 0.94 | 0.19 | 0.98 | |||||||||||||
2005 | 0.29 | a | 0.12 | 0.67 | 0.62 | 0.84 | 0.23 | 0.15 | 0.00 | 0.10 | 0.60 | 0.48 | 0.70 | 0.84 | ||||||||||||
2006 | 0.69 | 0.66 | 0.63 | 0.77 | 1.26 | 0.72 | 0.03 | 0.05 | 0.40 | 0.39 | 1.45 | 0.82 | 1.45 | |||||||||||||
2007 | 0.67 | A | 0.33 | 0.64 | 0.27 | 0.28 | 1.00 | 0.25 | 0.34 | 0.25 | 0.28 | 0.90 | 0.49 | a | 1.00 | |||||||||||
2008 | 0.47 | c | 0.20 | 0.30 | A | 0.15 | 0.17 | 0.40 | 0.10 | 0.20 | 0.20 | 0.25 | 0.90 | e | 1.50 | A | 0.90 | |||||||||
2009 | 1.60 | a | 0.45 | a | 1.43 | A | 0.77 | 0.48 | 0.60 | 0.01 | 1.13 | 0.01 | 1.00 | 0.41 | e | 1.50 | 1.60 | |||||||||
2010 | 0.58 | A | 0.37 | A | 0.42 | A | 0.97 | 0.74 | 1.15 | 0.12 | 0.02 | 0.46 | 0.70 | A | 0.58 | f | 0.77 | 1.15 | ||||||||
2011 | 0.10 | g | 0.77 | c | 0.72 | c | 0.65 | b | 0.33 | b | 0.92 | d | 0.33 | a | 0.07 | 0.06 | 0.50 | b | 0.20 | c | 0.46 | c | 0.92 | |||
2012 | 0.06 | f | 0.11 | f | 0.87 | c | 0.80 | a | 0.13 | a | 0.75 | f | 0.30 | 0.01 | d | 0.00 | 1.35 | 0.51 | 0.75 | 1.35 | ||||||
2013 | 0.55 | 0.20 | 0.35 | 0.00 | 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 | 0.55 | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.64 | 0.53 | 0.55 | 0.59 | 0.64 | 0.51 | 0.27 | 0.34 | 0.40 | 0.59 | 0.68 | 0.65 | 1.12 | |||||||||||||
S.D. | 0.36 | 0.26 | 0.24 | 0.30 | 0.38 | 0.31 | 0.38 | 0.38 | 0.33 | 0.34 | 0.33 | 0.35 | 0.35 | |||||||||||||
SKEW | 1.11 | 0.64 | 0.69 | 0.70 | 1.00 | 0.95 | 3.07 | 1.28 | 0.90 | 1.08 | 0.63 | 1.43 | 0.36 | |||||||||||||
MAX | 1.65 | 1.33 | 1.21 | 1.42 | 1.86 | 1.34 | 2.10 | 1.44 | 1.27 | 1.82 | 1.50 | 2.09 | 1.87 | |||||||||||||
MIN | 0.19 | 0.12 | 0.15 | 0.12 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.10 | 0.38 | |||||||||||||
NO YRS | 56 | 62 | 60 | 63 | 63 | 63 | 65 | 65 | 65 | 65 | 61 | 60 | 47 |