YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.02 | 0.15 | 1.37 | 1.25 | 2.79 | h | ||||
1932 | 0.05 | 1.44 | 0.00 | 0.00 | 0.27 | 0.08 | 0.80 | 0.00 | 1.13 | 0.10 | 0.00 | 0.50 | 4.37 | |||||||||||||
1933 | 0.85 | 0.01 | 0.00 | 0.35 | 0.09 | 0.00 | 0.48 | 0.81 | 0.10 | 0.00 | 0.32 | 0.43 | 3.44 | |||||||||||||
1934 | 0.30 | 0.23 | 0.00 | 0.40 | 0.00 | 0.19 | 1.18 | 0.30 | 0.00 | 0.06 | 0.01 | 0.44 | 3.11 | |||||||||||||
1935 | 1.12 | 1.79 | 0.41 | 0.15 | 0.46 | 0.00 | 0.34 | a | 0.01 | 1.05 | 0.02 | 0.24 | 0.24 | 5.83 | ||||||||||||
1936 | 0.00 | 0.49 | 0.21 | 0.00 | 0.00 | 0.00 | 2.12 | 0.79 | 0.00 | 1.56 | 0.06 | 1.31 | 6.54 | |||||||||||||
1937 | 0.44 | 0.24 | 1.06 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.75 | 0.00 | 0.00 | 0.33 | 3.07 | |||||||||||||
1938 | 0.47 | 1.00 | 2.14 | 0.01 | 0.33 | 0.19 | 0.11 | 0.27 | 0.50 | 0.03 | 0.01 | 0.57 | 5.63 | |||||||||||||
1939 | 1.15 | 0.51 | 0.48 | 0.47 | 0.09 | 0.00 | 0.07 | 0.90 | 3.47 | 0.02 | 0.70 | 0.17 | 8.03 | |||||||||||||
1940 | 0.68 | 1.74 | 0.00 | 0.90 | 0.48 | 0.03 | 0.00 | 0.00 | 1.47 | 0.08 | 0.22 | 1.96 | 7.56 | |||||||||||||
1941 | 1.58 | 1.55 | 1.79 | 1.69 | 0.08 | 0.00 | 0.24 | 1.20 | 0.07 | 1.21 | 0.42 | 0.69 | 10.52 | |||||||||||||
1942 | 0.00 | 0.10 | 0.04 | 0.56 | 0.01 | 0.00 | 0.97 | 0.86 | 0.00 | 0.13 | 0.00 | 0.19 | 2.86 | |||||||||||||
1943 | 1.88 | 0.34 | 0.42 | 1.86 | 0.00 | 0.00 | 0.02 | 0.47 | 0.69 | 0.04 | 0.05 | 1.02 | 6.79 | |||||||||||||
1944 | 0.91 | 1.28 | 0.00 | 0.11 | 0.34 | 0.00 | 0.17 | 0.00 | 0.00 | 0.19 | 0.81 | 0.13 | b | 3.94 | ||||||||||||
1945 | 1.20 | 0.59 | 2.25 | 0.03 | 0.00 | 0.00 | 1.01 | 0.70 | 0.00 | 0.20 | 0.00 | 0.90 | 6.88 | |||||||||||||
1946 | 0.11 | 0.02 | 0.33 | 0.16 | 0.13 | 0.00 | 1.13 | 1.06 | 0.24 | 0.36 | 1.23 | 0.41 | 5.18 | |||||||||||||
1947 | 0.01 | 0.00 | 0.00 | 0.03 | 0.29 | 0.00 | 0.22 | 0.28 | 0.01 | 0.99 | 0.16 | 1.80 | 3.79 | |||||||||||||
1948 | 0.00 | 0.32 | 0.10 | 0.03 | 0.00 | 0.00 | 0.00 | 0.17 | 0.05 | 0.14 | 0.00 | 0.68 | 1.49 | |||||||||||||
1949 | 3.45 | 0.61 | 0.43 | 0.11 | 0.32 | 0.22 | 0.17 | 0.49 | 0.12 | 0.01 | 0.20 | 0.26 | 6.39 | |||||||||||||
1950 | 0.02 | 0.15 | 0.06 | 0.00 | 0.02 | 0.00 | 1.39 | 0.11 | 0.19 | 0.02 | 0.02 | 0.00 | 1.98 | |||||||||||||
1951 | 0.59 | 0.03 | 0.25 | 1.11 | 0.07 | 0.00 | 1.65 | 0.44 | 1.12 | 0.26 | 0.51 | 0.56 | 6.59 | |||||||||||||
1952 | 0.89 | 0.00 | 2.60 | 0.78 | 0.00 | 0.05 | 1.36 | 0.11 | 1.80 | 0.00 | 0.27 | a | 1.01 | 8.87 | ||||||||||||
1953 | 0.00 | a | 0.00 | 0.02 | ----- | z | 0.03 | 0.02 | 0.62 | 1.92 | 0.00 | 0.34 | 0.05 | 0.01 | 3.01 | a | ||||||||||
1954 | 1.24 | 0.05 | 1.13 | 0.14 | 0.00 | 0.16 | 0.25 | 0.08 | 0.14 | 0.03 | a | 0.34 | 0.47 | 4.03 | ||||||||||||
1955 | 1.29 | 0.33 | 0.03 | 0.08 | 0.13 | 0.02 | 0.93 | 2.25 | 0.00 | 0.07 | 0.07 | 0.02 | 5.22 | |||||||||||||
1956 | 0.21 | 0.02 | 0.00 | 0.22 | a | 0.00 | 0.00 | 0.47 | 0.00 | 0.00 | 0.17 | 0.02 | 0.00 | 1.11 | ||||||||||||
1957 | 0.50 | 0.51 | 0.07 | 0.49 | 0.98 | 0.07 | 0.34 | 3.09 | 0.00 | 1.83 | 0.56 | 0.11 | 8.55 | |||||||||||||
1958 | 0.47 | 1.24 | 1.77 | 0.90 | 1.08 | 0.00 | 0.08 | 1.25 | 0.21 | 1.02 | 1.15 | 0.00 | 9.17 | |||||||||||||
1959 | 0.49 | 0.72 | 0.00 | 0.00 | 0.04 | 0.00 | 0.29 | 0.11 | 0.10 | 0.91 | 0.92 | 1.77 | 5.35 | |||||||||||||
1960 | 0.91 | 0.53 | 0.07 | 0.13 | 0.02 | 0.01 | 0.03 | 0.21 | 0.57 | 0.89 | 2.65 | 0.25 | 6.27 | |||||||||||||
1961 | 0.47 | 0.00 | 0.84 | 0.33 | 0.05 | 0.00 | 0.39 | 0.40 | 0.00 | 0.32 | 0.41 | a | 0.66 | 3.87 | ||||||||||||
1962 | 0.12 | 0.36 | 0.15 | 0.00 | 0.02 | 0.21 | 0.00 | 0.26 | 1.63 | 0.80 | 0.00 | 0.19 | 3.74 | |||||||||||||
1963 | 0.39 | 0.86 | 0.23 | 0.02 | 0.00 | 0.10 | 0.00 | 0.86 | 1.61 | 0.57 | 0.45 | 0.00 | 5.09 | |||||||||||||
1964 | 0.03 | 0.07 | 0.09 | 0.29 | 0.00 | 0.70 | 0.01 | 0.00 | 0.00 | 0.00 | 0.19 | 0.01 | 1.39 | |||||||||||||
1965 | 0.14 | 0.72 | 0.93 | 3.03 | 0.54 | 0.00 | 0.04 | 0.18 | 0.00 | 0.06 | 0.00 | f | 1.47 | 7.11 | a | |||||||||||
1966 | 0.01 | 0.27 | 0.08 | 0.05 | 0.02 | 0.15 | 0.00 | 0.29 | 0.68 | 0.95 | 0.15 | 1.18 | 3.83 | |||||||||||||
1967 | 0.61 | 0.00 | 0.00 | 0.16 | 0.11 | 0.11 | 0.15 | 1.23 | 0.37 | 0.00 | 1.42 | 0.87 | 5.03 | |||||||||||||
1968 | 0.00 | 0.60 | 0.27 | 0.11 | 0.00 | 0.50 | 0.36 | 0.07 | 0.00 | 0.10 | 0.10 | 0.08 | 2.19 | |||||||||||||
1969 | 1.34 | 1.43 | 0.22 | 0.00 | 0.41 | 0.33 | 0.83 | 1.20 | 0.23 | 0.30 | 0.12 | 0.00 | 6.41 | |||||||||||||
1970 | 0.03 | 0.62 | 0.88 | 0.01 | 0.00 | 0.00 | 0.20 | 2.87 | 0.00 | 0.00 | 0.40 | 0.11 | 5.12 | |||||||||||||
1971 | 0.01 | 0.44 | 0.00 | 0.00 | 1.37 | 0.00 | 0.11 | 0.90 | 0.00 | 0.00 | 0.27 | 1.12 | 4.22 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.25 | 0.07 | 0.19 | 0.41 | 0.26 | 1.05 | 0.33 | 1.31 | 0.25 | 4.12 | |||||||||||||
1973 | 0.65 | 0.85 | 2.06 | 0.25 | 0.18 | 0.26 | 0.01 | 0.21 | 0.00 | 0.00 | 0.12 | 0.05 | 4.64 | |||||||||||||
1974 | 0.55 | b | 0.00 | 0.69 | 0.00 | 0.00 | 0.00 | 1.74 | 0.04 | 0.06 | 2.23 | 0.59 | 1.11 | 7.01 | ||||||||||||
1975 | 0.00 | 0.14 | 1.17 | 1.22 | 0.03 | 0.00 | 0.24 | 0.37 | 0.45 | 0.08 | 0.18 | ----- | z | 3.88 | a | |||||||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.75 | 0.00 | ----- | z | 0.00 | 3.75 | i | |||
1977 | ----- | z | 0.00 | 1.19 | 0.00 | 0.82 | 0.01 | 0.02 | 1.83 | 0.24 | 0.00 | 0.00 | 0.78 | 4.89 | a | |||||||||||
1978 | 1.74 | 0.94 | 3.62 | 0.75 | 0.58 | 0.00 | 0.14 | 0.62 | 0.34 | 0.83 | 1.77 | 0.65 | 11.98 | |||||||||||||
1979 | 1.72 | 0.42 | 1.61 | 0.03 | 0.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.44 | 4.38 | e | |||||||
1980 | 2.35 | 2.35 | 1.39 | 0.02 | 0.22 | 0.00 | 2.10 | 0.30 | 0.54 | 0.20 | 0.00 | 0.02 | 9.49 | |||||||||||||
1981 | 0.21 | 0.20 | 1.55 | 0.00 | 0.72 | 0.00 | 0.25 | 1.36 | 2.52 | 0.50 | 0.33 | 0.00 | 7.64 | |||||||||||||
1982 | 0.22 | e | 0.98 | b | 1.17 | 0.09 | 0.22 | 0.00 | 0.45 | 1.72 | 0.43 | 0.07 | 0.53 | 0.68 | 6.56 | |||||||||||
1983 | 0.63 | 0.62 | 1.15 | 0.78 | 0.04 | 0.00 | 0.09 | 1.78 | 0.98 | 0.64 | 0.00 | 0.64 | 7.35 | |||||||||||||
1984 | 0.00 | 0.06 | 0.03 | 0.09 | 0.05 | 0.00 | 0.80 | 5.08 | 3.12 | 0.03 | 1.64 | 2.46 | 13.36 | |||||||||||||
1985 | 0.97 | 0.12 | 0.04 | 0.00 | 0.00 | 0.00 | 0.72 | 0.00 | 0.20 | 0.19 | 1.39 | 0.50 | 4.13 | |||||||||||||
1986 | 0.62 | 0.97 | 0.83 | 0.00 | 0.00 | 0.57 | 0.62 | 0.11 | 0.13 | 0.17 | 0.39 | 0.68 | 5.09 | |||||||||||||
1987 | 0.80 | 0.77 | 0.58 | 0.28 | 0.36 | 0.36 | 0.52 | 0.00 | 0.06 | 0.66 | 2.15 | 0.89 | 7.43 | |||||||||||||
1988 | 0.72 | 0.24 | 0.00 | 1.10 | 0.00 | 0.00 | 0.09 | 0.58 | 0.00 | 0.00 | 0.10 | 0.18 | 3.01 | |||||||||||||
1989 | 0.88 | 0.05 | 0.04 | 0.00 | 0.13 | 0.00 | 1.30 | 0.56 | 0.00 | 0.07 | 0.00 | 0.00 | 3.03 | |||||||||||||
1990 | 1.42 | 0.89 | 0.09 | 0.08 | 0.19 | 0.32 | 1.03 | 0.28 | 0.82 | 0.20 | 0.02 | 0.00 | 5.34 | |||||||||||||
1991 | 0.48 | 0.75 | 1.58 | 0.00 | 0.18 | 0.34 | 0.28 | 1.75 | 1.15 | 0.08 | 0.75 | 0.53 | 7.87 | |||||||||||||
1992 | 0.39 | 2.35 | 5.04 | 0.07 | 0.14 | 0.00 | 0.21 | 0.26 | 0.07 | 1.59 | 0.09 | 0.97 | 11.18 | |||||||||||||
1993 | 2.87 | 3.11 | 0.43 | 0.10 | 0.00 | 0.47 | 0.00 | 0.07 | 0.00 | 0.00 | 1.28 | 0.19 | 8.52 | |||||||||||||
1994 | 0.06 | 0.43 | 0.66 | 0.11 | 0.07 | 0.00 | 0.25 | 0.23 | 0.20 | 0.03 | 0.44 | 1.46 | 3.94 | |||||||||||||
1995 | 2.79 | 0.22 | 0.73 | 0.39 | 0.52 | 0.00 | 0.00 | 1.09 | 0.00 | 0.00 | 0.00 | 0.02 | 5.76 | |||||||||||||
1996 | 0.01 | 0.73 | 0.00 | 0.00 | 0.19 | 0.00 | 0.06 | 0.11 | 0.01 | 0.18 | 0.84 | 0.28 | 2.41 | |||||||||||||
1997 | 0.79 | 0.44 | 0.00 | 0.22 | 0.01 | 0.13 | 1.42 | 3.96 | 1.74 | 0.00 | 0.18 | 0.17 | 9.06 | |||||||||||||
1998 | 0.10 | 3.14 | 0.76 | 0.25 | 0.09 | 0.14 | 1.96 | 0.20 | 0.14 | 0.32 | 0.31 | 0.06 | 7.47 | |||||||||||||
1999 | 0.32 | 0.17 | 0.03 | 1.22 | 0.02 | 0.57 | 0.88 | 0.35 | 0.45 | 0.00 | 0.00 | 0.00 | 4.01 | |||||||||||||
2000 | 0.00 | ----- | z | ----- | z | ----- | z | 0.01 | a | 0.00 | 0.00 | 0.02 | 0.00 | 0.25 | 0.00 | 0.00 | 0.28 | c | ||||||||
2001 | 0.27 | 0.25 | c | 0.10 | a | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | |||||||||||
2002 | 0.40 | b | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | 0.03 | 0.00 | 0.08 | 0.14 | 0.00 | 0.02 | c | 0.67 | d | ||||||
2003 | 0.08 | f | 1.81 | e | 0.22 | 0.80 | a | 0.00 | ----- | z | ----- | z | ----- | z | 0.06 | 0.00 | 0.59 | 0.47 | 3.95 | d | ||||||
2004 | 0.11 | 1.12 | a | 0.15 | 0.52 | b | 0.00 | 0.01 | 0.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.11 | e | |||||
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.66 | 0.64 | 0.66 | 0.34 | 0.18 | 0.09 | 0.49 | 0.71 | 0.51 | 0.32 | 0.43 | 0.51 | 5.63 | |||||||||||||
S.D. | 0.74 | 0.71 | 0.93 | 0.53 | 0.28 | 0.16 | 0.56 | 0.97 | 0.82 | 0.48 | 0.57 | 0.55 | 2.69 | |||||||||||||
SKEW | 1.70 | 1.70 | 2.31 | 2.68 | 2.27 | 1.96 | 1.33 | 2.36 | 2.27 | 2.10 | 1.77 | 1.33 | 0.55 | |||||||||||||
MAX | 3.45 | 3.14 | 5.04 | 3.03 | 1.37 | 0.70 | 2.12 | 5.08 | 3.75 | 2.23 | 2.65 | 2.46 | 13.36 | |||||||||||||
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 | 0.67 | |||||||||||||
YRS | 70 | 71 | 70 | 69 | 71 | 69 | 70 | 69 | 72 | 72 | 71 | 72 | 63 |