YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | 0.47 | u | 0.69 | 0.61 | 0.97 | p | 0.49 | 1.71 | 0.42 | 0.40 | ----- | z | ||||||
1941 | 0.23 | 0.50 | 0.25 | 1.88 | 1.24 | 0.92 | o | 0.77 | 1.23 | u | 1.06 | r | 1.35 | ----- | z | ----- | z | ----- | z | |||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.30 | 0.61 | 0.33 | 0.72 | 0.26 | ----- | z | |||||
1949 | 0.96 | b | 0.00 | x | 0.98 | 0.53 | ----- | z | 1.50 | 1.02 | a | 0.20 | a | 0.84 | 2.38 | 0.38 | 0.37 | ----- | z | |||||||
1950 | 0.22 | b | 0.14 | 0.80 | 1.41 | 1.72 | 0.68 | 0.48 | 0.59 | 0.52 | b | 1.65 | 0.71 | d | 0.75 | d | 1.72 | l | ||||||||
1951 | 0.32 | d | 0.72 | 0.70 | a | 0.60 | 1.68 | 2.06 | 4.61 | 2.35 | 1.63 | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.25 | n | ----- | z | ----- | z |
1959 | ----- | z | 0.15 | b | 0.12 | 0.27 | 1.92 | 0.79 | 1.97 | 1.07 | i | 1.57 | 0.47 | 0.38 | 0.90 | ----- | z | |||||||||
1960 | 0.68 | 0.06 | 0.17 | 0.73 | 1.62 | 0.80 | 2.36 | 3.12 | 0.72 | 0.15 | 1.17 | 0.22 | 3.12 | |||||||||||||
1961 | 0.09 | 0.13 | 0.35 | 0.81 | 1.03 | 0.82 | 5.45 | 0.55 | 1.28 | 1.00 | 1.85 | 0.32 | 5.45 | |||||||||||||
1962 | 0.31 | 0.34 | 0.99 | 0.36 | 2.14 | 1.05 | 1.53 | 1.18 | 1.25 | 0.63 | n | 0.40 | f | 0.06 | 2.14 | t | ||||||||||
1963 | 0.59 | 0.11 | 0.95 | 0.66 | 1.14 | 1.18 | 1.17 | 0.61 | 0.94 | 0.45 | 0.44 | 0.45 | 1.18 | |||||||||||||
1964 | 0.23 | ----- | z | ----- | z | 0.90 | 1.70 | 0.33 | 1.34 | 1.61 | 1.30 | 0.16 | 0.52 | 0.27 | ----- | z | ||||||||||
1965 | 0.15 | 0.88 | 1.40 | 1.36 | 0.90 | 0.74 | 1.22 | 1.18 | 1.26 | 0.66 | 0.78 | 0.91 | 1.40 | |||||||||||||
1966 | 0.45 | 0.82 | 0.48 | 0.50 | 0.45 | 0.84 | 0.71 | 1.60 | 1.79 | b | 2.14 | 0.26 | 0.38 | b | 2.14 | d | ||||||||||
1967 | ----- | z | ----- | z | ----- | z | 0.92 | 0.84 | 0.76 | 1.50 | 1.98 | 0.58 | 0.95 | 0.13 | 0.56 | ----- | z | |||||||||
1968 | 0.41 | 0.08 | 0.57 | 1.60 | 0.48 | 1.41 | 0.75 | 1.03 | 1.06 | 1.56 | 0.37 | 0.95 | 1.60 | |||||||||||||
1969 | 0.53 | 0.25 | 0.72 | 1.30 | 0.57 | 1.51 | 1.13 | 0.35 | 0.42 | 0.73 | 0.30 | 0.60 | 1.51 | |||||||||||||
1970 | 0.09 | 0.08 | 0.62 | 1.75 | 0.41 | 1.80 | 0.80 | 1.16 | 0.83 | 2.34 | 2.00 | 0.11 | 2.34 | |||||||||||||
1971 | 0.25 | 0.51 | 0.43 | 0.57 | 0.95 | 1.55 | 1.57 | 1.11 | 1.26 | 1.54 | 1.20 | 0.20 | 1.57 | |||||||||||||
1972 | 0.35 | 0.25 | v | ----- | z | ----- | z | 0.56 | 1.69 | 1.89 | 1.23 | 1.82 | 0.55 | 0.90 | 0.69 | ----- | z | |||||||||
1973 | 0.23 | 0.34 | 0.75 | 0.49 | 2.16 | 0.63 | 1.00 | 0.97 | 1.64 | 3.73 | 1.58 | 0.21 | 3.73 | |||||||||||||
1974 | 0.01 | 0.74 | 0.19 | 0.60 | 0.58 | 1.96 | 0.59 | 0.63 | 0.85 | 0.34 | 1.00 | 0.17 | 1.96 | |||||||||||||
1975 | 0.82 | 0.20 | 0.57 | 1.25 | 1.24 | 2.51 | 2.20 | 1.33 | 0.75 | 0.70 | 2.70 | 0.25 | 2.70 | |||||||||||||
1976 | 0.43 | 0.53 | 0.90 | 0.25 | 1.62 | 0.85 | 0.52 | 1.36 | 1.90 | 0.09 | 0.09 | 0.13 | 1.90 | |||||||||||||
1977 | 0.13 | 0.92 | 1.14 | 1.93 | 0.79 | 0.97 | 1.35 | 3.61 | 0.48 | 1.35 | 1.37 | 0.39 | 3.61 | |||||||||||||
1978 | 0.08 | 0.09 | 0.62 | 1.18 | 1.95 | 2.37 | 1.53 | 1.45 | 1.18 | 0.16 | 0.59 | 0.38 | 2.37 | |||||||||||||
1979 | 0.23 | 0.48 | 0.54 | 0.29 | 1.16 | 1.45 | 0.62 | 1.02 | 1.11 | 1.85 | 0.25 | 0.13 | 1.85 | |||||||||||||
1980 | 0.59 | a | 0.34 | 0.28 | 0.48 | 0.50 | 1.38 | 0.76 | 2.38 | 1.90 | 0.35 | 0.05 | 0.04 | 2.38 | a | |||||||||||
1981 | 0.05 | 0.58 | 0.87 | 0.95 | 0.36 | 2.34 | 1.46 | 0.87 | 0.76 | 0.90 | 0.34 | 0.30 | 2.34 | |||||||||||||
1982 | 0.60 | 0.11 | 0.55 | 0.80 | o | 0.59 | 0.78 | 4.89 | 1.12 | 1.75 | 1.16 | 0.74 | 1.05 | 4.89 | o | |||||||||||
1983 | 0.21 | 0.19 | 0.91 | 0.67 | 0.70 | 4.05 | 0.95 | 2.39 | 0.91 | 1.02 | 0.65 | 0.17 | 4.05 | |||||||||||||
1984 | 0.17 | 0.38 | 0.36 | 1.10 | 0.86 | 1.56 | 0.71 | 1.52 | 1.50 | 1.64 | 0.09 | 1.12 | 1.64 | |||||||||||||
1985 | 0.11 | 0.17 | 0.69 | 1.98 | 1.05 | 1.82 | 1.18 | 2.52 | 0.98 | 1.12 | 0.21 | 0.64 | 2.52 | |||||||||||||
1986 | 0.36 | 0.25 | 0.61 | 1.44 | 1.66 | 2.53 | 0.97 | 0.99 | 1.10 | 0.31 | 0.58 | 0.10 | 2.53 | |||||||||||||
1987 | 0.34 | 0.04 | 0.09 | u | 0.05 | q | 0.39 | 0.42 | 1.68 | 1.04 | 0.45 | 0.41 | 0.97 | 0.24 | ----- | z | ||||||||||
1988 | 0.21 | 0.13 | 0.65 | 0.36 | 1.02 | 0.08 | 0.77 | 0.92 | 0.68 | 0.29 | 0.54 | 0.27 | s | 1.02 | s | |||||||||||
1989 | 0.26 | 0.24 | 0.42 | a | 0.31 | 0.90 | 1.21 | 1.20 | 2.26 | 1.12 | 0.42 | 0.18 | 0.12 | 2.26 | a | |||||||||||
1990 | 0.02 | 0.21 | a | 0.67 | 0.72 | 1.31 | 2.32 | 1.78 | 1.17 | 0.47 | 1.28 | 0.53 | 0.27 | a | 2.32 | b | ||||||||||
1991 | 0.15 | 0.34 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.79 | 2.90 | 0.98 | 1.12 | 0.19 | ----- | z | ||||||
1992 | 0.26 | 0.27 | 0.32 | 0.78 | 1.46 | 1.22 | 1.04 | 1.57 | 1.12 | 0.76 | 0.96 | 0.32 | 1.57 | |||||||||||||
1993 | 0.24 | 0.60 | 0.72 | 0.54 | 0.89 | 2.91 | 1.04 | 3.75 | 1.62 | 0.55 | 1.56 | 0.36 | 3.75 | |||||||||||||
1994 | ----- | z | 0.40 | 0.18 | 1.31 | 0.58 | 1.12 | 1.73 | 1.53 | 0.93 | 0.54 | 0.48 | 0.18 | ----- | z | |||||||||||
1995 | 0.13 | 0.23 | 0.82 | 1.03 | 1.64 | 1.09 | 0.87 | 1.52 | 0.70 | 1.71 | 0.36 | 0.53 | 1.71 | |||||||||||||
1996 | 1.12 | 0.12 | 0.58 | 0.38 | 1.47 | 1.12 | 1.04 | 1.22 | 0.39 | 1.14 | 1.83 | 0.63 | 1.83 | |||||||||||||
1997 | 0.61 | 0.08 | 0.37 | 0.22 | 0.26 | 1.08 | 2.96 | 2.68 | 1.85 | 0.76 | 0.12 | 0.07 | 2.96 | |||||||||||||
1998 | 0.22 | 0.06 | 0.99 | 1.26 | 1.73 | 1.69 | 2.30 | 0.66 | 0.61 | 0.81 | 0.67 | 0.41 | 2.30 | |||||||||||||
1999 | 0.31 | 0.03 | 0.77 | 1.05 | 1.65 | 0.91 | 1.81 | 4.58 | 1.12 | 0.38 | 0.13 | 0.10 | 4.58 | |||||||||||||
2000 | 0.27 | 0.35 | 0.54 | 0.60 | 0.68 | 1.08 | 0.82 | 1.15 | 0.21 | 0.25 | 1.17 | 0.28 | a | 1.17 | a | |||||||||||
2001 | 0.79 | 0.64 | 0.26 | 2.88 | 0.63 | 0.62 | 1.49 | 1.08 | 0.65 | 0.33 | 1.12 | 0.31 | 2.88 | |||||||||||||
2002 | 0.13 | 0.52 | ----- | z | ----- | z | ----- | z | 4.69 | 3.33 | 4.17 | 6.31 | 1.65 | 0.10 | 0.16 | ----- | z | |||||||||
2003 | 0.18 | ----- | z | ----- | z | ----- | z | ----- | z | 6.35 | 1.35 | 0.22 | 2.38 | 0.48 | 3.00 | 0.50 | ----- | z | ||||||||
2004 | 0.44 | 0.46 | 0.58 | 1.01 | 1.68 | a | 1.45 | 0.76 | 0.25 | j | 1.01 | 2.67 | 0.50 | 0.09 | a | 2.67 | l | |||||||||
2005 | 0.67 | 3.00 | 0.40 | 0.95 | 0.78 | 2.40 | 1.31 | c | 2.42 | 5.39 | 3.23 | 0.64 | 0.67 | h | 5.39 | k | ||||||||||
2006 | 0.42 | 0.12 | 0.25 | 1.31 | a | 0.40 | 0.54 | 0.35 | 1.95 | 3.12 | j | 0.35 | 0.48 | 0.05 | k | 3.12 | v | |||||||||
2007 | 0.00 | k | 0.94 | a | 1.31 | y | 0.11 | j | 0.49 | 0.64 | 0.67 | 1.82 | 1.77 | 1.95 | 0.04 | 0.86 | ----- | z | ||||||||
2008 | 0.12 | 0.23 | 0.32 | 1.32 | 1.02 | 1.92 | 0.75 | 0.59 | 0.98 | 0.61 | 0.43 | 0.44 | 1.92 | |||||||||||||
2009 | 0.16 | 0.61 | 0.71 | 0.54 | 0.39 | 1.45 | a | 1.26 | 2.25 | 0.33 | 2.24 | a | 0.29 | 0.59 | 2.25 | b | ||||||||||
2010 | 0.44 | 0.24 | 0.44 | a | 0.75 | b | 0.75 | 2.30 | d | 1.40 | c | 1.86 | a | 2.36 | 1.06 | 0.70 | 0.71 | 2.36 | k | |||||||
2011 | 0.38 | 0.68 | 1.05 | 1.08 | 2.91 | 0.94 | 2.44 | 1.15 | 0.06 | 0.54 | 0.19 | 0.42 | b | 2.91 | b | |||||||||||
2012 | 0.21 | 2.01 | 0.76 | 0.65 | 4.77 | 0.72 | 1.75 | 0.60 | 0.15 | 0.20 | 0.52 | a | 0.56 | 4.77 | a | |||||||||||
2013 | 0.31 | 0.68 | 0.69 | 0.89 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.33 | 0.43 | 0.61 | 0.94 | 1.15 | 1.50 | 1.47 | 1.61 | 1.25 | 1.04 | 0.73 | 0.40 | 2.52 | |||||||||||||
S.D. | 0.24 | 0.49 | 0.28 | 0.54 | 0.77 | 1.08 | 1.03 | 1.02 | 1.06 | 0.81 | 0.63 | 0.27 | 1.02 | |||||||||||||
SKEW | 1.26 | 3.33 | 0.37 | 1.15 | 2.17 | 2.28 | 2.20 | 1.23 | 2.95 | 1.21 | 1.64 | 0.90 | 1.11 | |||||||||||||
MAX | 1.12 | 3.00 | 1.40 | 2.88 | 4.77 | 6.35 | 5.45 | 4.58 | 6.31 | 3.73 | 3.00 | 1.12 | 5.45 | |||||||||||||
MIN | 0.01 | 0.03 | 0.12 | 0.22 | 0.26 | 0.08 | 0.35 | 0.20 | 0.06 | 0.09 | 0.04 | 0.04 | 1.17 | |||||||||||||
YRS | 55 | 54 | 51 | 51 | 54 | 57 | 58 | 56 | 58 | 58 | 57 | 55 | 37 |