YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.09 | 0.00 | 0.48 | ----- | z | |||
1933 | 0.49 | 0.46 | 0.00 | 0.24 | 0.01 | 0.02 | 0.01 | 0.75 | 0.02 | 0.06 | 0.06 | 0.07 | 0.75 | |||||||||||||
1934 | 0.22 | 0.17 | 0.00 | ----- | z | 0.00 | 0.02 | 0.14 | 1.05 | 0.00 | ----- | z | 0.20 | ----- | z | ----- | z | |||||||||
1935 | 0.52 | 0.96 | s | 0.22 | 0.00 | 0.02 | ----- | z | 0.77 | 1.78 | 0.44 | ----- | z | 0.02 | 0.32 | ----- | z | |||||||||
1936 | 0.35 | 0.10 | 0.10 | 0.00 | 0.00 | ----- | z | 0.94 | ----- | z | 0.14 | 0.01 | 0.43 | 0.47 | ----- | z | ||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | 0.25 | l | 0.00 | 0.48 | 1.25 | 0.00 | 0.00 | 0.18 | 0.26 | f | 0.00 | 0.00 | 0.21 | 0.64 | 1.25 | r | ||||||||||
1953 | 0.06 | 0.04 | 0.32 | 0.00 | 0.00 | 0.00 | 0.18 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | |||||||||||||
1954 | 0.55 | 0.00 | 0.78 | 0.00 | 0.00 | a | 0.00 | 0.35 | 0.36 | 0.30 | 0.00 | 0.07 | 0.05 | 0.78 | a | |||||||||||
1955 | 0.53 | 0.01 | 0.00 | 0.06 | 0.00 | 0.00 | 0.51 | 1.47 | 0.00 | 0.46 | 0.00 | 0.07 | 1.47 | |||||||||||||
1956 | 0.00 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.37 | 0.16 | 0.00 | 0.17 | 0.00 | 0.00 | 0.37 | |||||||||||||
1957 | 0.45 | 0.05 | 0.06 | 0.25 | 0.00 | 0.00 | 1.75 | 0.23 | 0.00 | 0.55 | 0.20 | 0.10 | 1.75 | |||||||||||||
1958 | 0.00 | 1.26 | 0.37 | 0.35 | 0.00 | 0.03 | 0.05 | 1.24 | 0.68 | 0.06 | 0.50 | 0.00 | 1.26 | |||||||||||||
1959 | 0.12 | 0.68 | 0.00 | 0.24 | a | 0.00 | 1.18 | 0.34 | 0.29 | 0.25 | 0.12 | 0.70 | 0.90 | 1.18 | a | |||||||||||
1960 | 0.28 | 0.51 | 0.15 | 0.00 | 0.03 | 0.00 | 0.42 | 0.74 | 2.59 | 0.00 | 0.41 | 0.00 | 2.59 | |||||||||||||
1961 | 0.31 | 0.00 | 0.17 | 0.02 | 0.00 | 0.00 | 0.32 | 1.93 | 0.10 | 0.00 | 0.02 | 0.69 | 1.93 | |||||||||||||
1962 | 0.75 | 0.17 | 0.25 | 0.00 | 0.05 | 0.45 | 0.15 | 0.00 | 0.48 | 0.05 | 0.13 | 1.20 | 1.20 | |||||||||||||
1963 | 0.02 | 0.13 | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 1.37 | 0.87 | 0.58 | 0.00 | ----- | z | |||||||||||
1964 | 0.06 | 0.17 | 0.17 | 0.00 | 0.00 | 0.21 | 0.21 | 0.09 | 0.00 | 0.00 | 0.36 | 0.12 | 0.36 | |||||||||||||
1965 | 0.30 | 0.34 | 0.33 | 0.85 | 0.00 | 0.00 | 0.30 | 0.37 | 0.23 | 0.00 | 0.35 | 0.57 | 0.85 | |||||||||||||
1966 | 0.51 | 0.09 | 0.24 | 0.00 | 0.00 | 0.00 | 0.46 | 0.00 | 0.19 | 0.89 | 0.33 | 0.10 | 0.89 | |||||||||||||
1967 | 0.25 | 0.00 | 0.10 | 0.11 | 0.36 | 0.00 | 0.22 | 0.18 | 0.77 | 0.00 | 0.23 | 0.52 | 0.77 | |||||||||||||
1968 | 0.04 | 0.11 | 0.32 | 0.06 | 0.00 | 0.00 | 1.02 | 0.05 | 0.00 | 1.32 | 0.14 | 0.23 | 1.32 | |||||||||||||
1969 | 0.80 | 0.20 | 0.07 | 0.00 | 0.16 | 0.00 | 0.42 | 0.52 | 0.36 | 0.18 | 1.10 | 0.02 | 1.10 | |||||||||||||
1970 | 0.13 | 0.22 | 0.78 | 0.05 | 0.00 | 0.00 | 0.44 | 0.43 | 0.20 | 0.03 | 0.03 | 0.11 | 0.78 | |||||||||||||
1971 | 0.00 | 0.16 | 0.00 | 0.00 | 0.06 | 0.00 | 0.00 | 1.77 | 0.83 | 0.05 | 0.01 | 0.02 | 1.77 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.55 | 0.00 | 0.05 | 0.57 | 0.85 | 0.58 | 0.21 | 0.85 | |||||||||||||
1973 | 0.06 | ----- | z | 1.05 | 0.00 | 0.00 | 0.04 | 0.10 | 0.30 | 0.00 | 0.00 | 0.50 | 0.00 | ----- | z | |||||||||||
1974 | 0.47 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.76 | 1.05 | 0.02 | 0.14 | 0.02 | 0.56 | 1.05 | |||||||||||||
1975 | 0.14 | 0.04 | 0.35 | 0.07 | 0.00 | 0.00 | 0.70 | 0.21 | 0.32 | 0.12 | 0.22 | 0.16 | 0.70 | |||||||||||||
1976 | 0.00 | 0.42 | 0.02 | 0.24 | 0.04 | 0.00 | 0.63 | 0.01 | 0.91 | 0.14 | 0.23 | 0.24 | 0.91 | |||||||||||||
1977 | 0.20 | 0.00 | 0.07 | 0.13 | 0.27 | 0.12 | 0.45 | 0.72 | 0.09 | 0.53 | 0.03 | 0.20 | 0.72 | |||||||||||||
1978 | 1.00 | 0.48 | 0.37 | 0.17 | 0.04 | 0.00 | 0.16 | 0.12 | 0.37 | 1.69 | 0.67 | 0.90 | 1.69 | |||||||||||||
1979 | 0.62 | 0.14 | 0.71 | 0.00 | 0.13 | 0.05 | 1.04 | 1.03 | 0.32 | 0.04 | 0.00 | 0.24 | 1.04 | |||||||||||||
1980 | 0.46 | 1.01 | 0.75 | 0.08 | 0.02 | 0.05 | 0.72 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 1.01 | |||||||||||||
1981 | 0.11 | 0.43 | 0.57 | 0.00 | 0.06 | 0.00 | 0.00 | 0.24 | 0.32 | 0.53 | 0.31 | 0.00 | 0.57 | |||||||||||||
1982 | 0.28 | 0.25 | 0.42 | 0.00 | 0.57 | 0.00 | 0.26 | 2.75 | 0.22 | 0.00 | 0.33 | 0.89 | 2.75 | |||||||||||||
1983 | 0.20 | 0.36 | 0.46 | 0.00 | 0.00 | 0.00 | 0.80 | 0.65 | 0.55 | 0.54 | 0.07 | 0.46 | 0.80 | |||||||||||||
1984 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.95 | 0.52 | 0.37 | 0.00 | 0.27 | 0.62 | 0.95 | |||||||||||||
1985 | 0.38 | 0.12 | 0.04 | 0.06 | 0.00 | 0.02 | 0.47 | 0.00 | 0.60 | 0.25 | 0.91 | 0.30 | 0.91 | |||||||||||||
1986 | 0.08 | 0.62 | 0.37 | 0.02 | 0.00 | 0.00 | 0.35 | 0.64 | 0.60 | 0.45 | 0.48 | 0.50 | 0.64 | |||||||||||||
1987 | 0.23 | 0.21 | 0.16 | 0.15 | 0.05 | 0.10 | 0.00 | 0.06 | 0.05 | 0.25 | 0.30 | 0.39 | 0.39 | |||||||||||||
1988 | 0.40 | 0.58 | 0.02 | 1.11 | 0.00 | a | 0.00 | 0.16 | 1.51 | 0.00 | 0.01 | 0.08 | 0.09 | 1.51 | a | |||||||||||
1989 | 0.67 | 0.00 | 0.07 | 0.00 | 0.01 | 0.00 | 0.33 | 0.05 | 0.03 | 0.16 | 0.00 | 0.13 | 0.67 | |||||||||||||
1990 | 0.32 | 0.15 | 0.13 | 0.22 | 0.04 | 0.05 | 0.06 | 0.10 | 0.31 | 0.10 | 0.05 | 0.00 | 0.32 | |||||||||||||
1991 | 0.32 | 1.01 | 0.58 | 0.00 | 0.00 | 0.00 | 0.05 | 0.81 | 0.03 | 0.20 | 0.12 | 0.08 | 1.01 | |||||||||||||
1992 | 0.35 | 0.82 | 0.45 | 0.25 | 1.19 | 0.00 | 0.86 | 0.96 | 0.00 | 0.77 | 0.00 | 0.85 | 1.19 | |||||||||||||
1993 | 0.80 | 1.40 | 0.46 | 0.00 | 0.03 | 0.00 | 0.00 | 0.19 | 0.00 | 0.16 | 0.59 | 0.05 | 1.40 | |||||||||||||
1994 | 0.04 | 0.21 | 0.81 | 0.02 | 0.44 | 0.00 | 0.00 | 0.28 | 0.00 | 0.01 | 0.45 | 0.28 | 0.81 | |||||||||||||
1995 | 0.82 | 0.67 | 0.45 | 0.23 | 0.01 | 0.00 | 0.59 | 0.02 | 0.00 | 0.00 | 0.00 | 0.02 | 0.82 | |||||||||||||
1996 | 0.04 | 0.13 | 0.00 | 0.00 | 0.07 | 0.00 | 0.03 | 0.12 | 0.70 | 0.07 | 0.15 | 0.00 | 0.70 | |||||||||||||
1997 | 0.72 | 0.21 | 0.00 | 0.22 | 0.00 | 0.04 | 0.70 | 0.32 | 1.32 | 0.05 | 0.15 | 1.23 | 1.32 | |||||||||||||
1998 | 0.17 | 0.70 | 0.23 | 0.01 | 0.05 | 0.00 | 0.15 | 0.50 | 1.72 | 0.05 | 0.40 | 0.39 | 1.72 | |||||||||||||
1999 | 0.05 | 0.51 | 0.01 | 0.58 | 0.00 | 0.11 | 0.28 | 0.05 | 0.38 | 0.00 | 0.00 | 0.00 | 0.58 | |||||||||||||
2000 | 0.02 | 0.05 | 0.11 | 0.00 | 0.00 | 0.42 | 0.00 | 0.58 | 0.00 | 0.12 | 0.00 | 0.00 | 0.58 | |||||||||||||
2001 | 0.43 | 0.32 | 1.27 | 0.02 | 0.00 | 0.00 | 0.32 | 1.65 | 0.00 | 0.01 | 0.02 | 0.16 | 1.65 | |||||||||||||
2002 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.05 | 0.18 | 0.35 | 0.10 | 0.35 | |||||||||||||
2003 | 0.31 | 0.82 | 0.50 | 0.05 | 0.00 | 0.00 | 0.28 | 0.25 | 0.31 | 0.00 | 0.35 | 0.43 | 0.82 | |||||||||||||
2004 | 0.05 | 0.17 | 0.25 | c | 1.12 | 0.00 | 0.00 | 0.50 | 0.01 | 0.95 | 1.75 | 0.62 | b | 0.60 | 1.75 | e | ||||||||||
2005 | 0.75 | 0.86 | 0.17 | 0.13 | 0.00 | 0.00 | d | 0.03 | 0.92 | 0.00 | 0.55 | 0.15 | 0.00 | 0.92 | d | |||||||||||
2006 | 0.00 | 0.05 | 0.35 | 0.01 | 0.00 | 0.04 | 0.48 | 0.31 | 0.71 | 0.96 | 0.00 | 0.15 | 0.96 | |||||||||||||
2007 | 0.07 | 0.03 | 0.16 | 0.00 | 0.00 | 0.00 | 0.80 | a | 0.17 | a | 0.10 | 0.27 | 0.00 | 1.35 | 1.35 | b | ||||||||||
2008 | 0.70 | 0.23 | 0.00 | 0.00 | 0.45 | 0.00 | 0.65 | 0.54 | 0.25 | 0.00 | 0.44 | 0.55 | 0.70 | |||||||||||||
2009 | 0.02 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.27 | 0.00 | 0.00 | 0.61 | 0.61 | |||||||||||||
2010 | 1.37 | 0.30 | 0.69 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | a | 0.00 | 0.32 | 0.00 | 0.30 | a | 1.37 | b | ||||||||||
2011 | 0.00 | 0.70 | 0.10 | a | 0.23 | 0.00 | 0.05 | 0.43 | a | 0.03 | a | 0.13 | a | 0.05 | b | 0.43 | 0.29 | 0.70 | f | |||||||
2012 | 0.02 | 0.05 | 0.07 | 0.25 | a | 0.00 | 0.00 | 0.26 | 0.26 | 0.10 | 0.74 | 0.02 | 0.60 | a | 0.74 | b | ||||||||||
2013 | 1.14 | b | 0.20 | 0.06 | 0.00 | 0.00 | 0.00 | 0.60 | 1.83 | a | 0.83 | 0.02 | 0.60 | 0.03 | b | 1.83 | e | |||||||||
2014 | 0.00 | 0.00 | a | 0.14 | a | 0.03 | 0.05 | a | 0.00 | a | 0.55 | a | 0.91 | a | 1.50 | a | 0.13 | 0.00 | 0.42 | 1.50 | g | |||||
2015 | 0.45 | 0.34 | 0.68 | a | 0.58 | 0.37 | a | 0.03 | a | 0.55 | 0.38 | 0.62 | 0.30 | 0.07 | 0.23 | 0.68 | c | |||||||||
2016 | 0.49 | 0.06 | 0.00 | 0.80 | 0.00 | 0.00 | a | 0.04 | 0.38 | 0.24 | b | 0.10 | 0.26 | 1.07 | 1.07 | c | ||||||||||
2017 | 1.13 | a | 0.57 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.33 | 0.31 | 0.27 | 0.15 | 0.07 | 0.05 | 0.38 | 0.55 | 0.36 | 0.27 | 0.23 | 0.32 | 1.02 | |||||||||||||
S.D. | 0.32 | 0.33 | 0.28 | 0.28 | 0.18 | 0.17 | 0.34 | 0.58 | 0.48 | 0.40 | 0.25 | 0.34 | 0.50 | |||||||||||||
SKEW | 1.08 | 1.36 | 1.25 | 2.54 | 4.20 | 4.88 | 1.25 | 1.57 | 2.25 | 1.99 | 1.13 | 1.17 | 1.31 | |||||||||||||
MAX | 1.37 | 1.40 | 1.27 | 1.25 | 1.19 | 1.18 | 1.75 | 2.75 | 2.59 | 1.75 | 1.10 | 1.35 | 2.75 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | |||||||||||||
YRS | 69 | 68 | 69 | 69 | 69 | 67 | 69 | 67 | 69 | 68 | 70 | 69 | 59 |