YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | 0.05 | 1.28 | 1.40 | 0.38 | 1.49 | 1.58 | 0.44 | 0.85 | 0.80 | 0.55 | ----- | z | ||||||||||
1961 | 0.05 | 0.09 | 1.00 | 1.46 | 1.40 | 0.22 | 0.72 | 0.30 | 0.55 | 0.74 | 1.49 | 0.38 | 1.49 | |||||||||||||
1962 | 0.15 | 0.28 | 0.55 | 1.15 | 1.82 | 1.03 | 0.40 | 1.10 | 1.40 | 0.21 | 0.11 | 0.16 | 1.82 | |||||||||||||
1963 | 0.07 | 0.20 | 0.27 | 0.79 | 1.00 | 0.93 | 0.53 | 1.16 | a | 0.62 | 1.12 | 0.96 | 0.32 | 1.16 | a | |||||||||||
1964 | 0.39 | 0.07 | 0.28 | 1.05 | 1.03 | 1.26 | 0.40 | 1.40 | 4.35 | 0.20 | 1.49 | 0.47 | 4.35 | |||||||||||||
1965 | 0.15 | 0.66 | 1.17 | 0.41 | 0.59 | 0.55 | 0.94 | 0.84 | 1.56 | 0.82 | 0.75 | 0.84 | 1.56 | |||||||||||||
1966 | 0.26 | 0.75 | 0.78 | 0.58 | 1.00 | 2.24 | 1.92 | 1.33 | 0.29 | 1.39 | 0.08 | 0.34 | 2.24 | |||||||||||||
1967 | 0.89 | 0.06 | 0.30 | 0.50 | 0.35 | 2.15 | 1.83 | 0.92 | 0.55 | 0.52 | 0.16 | 0.29 | 2.15 | |||||||||||||
1968 | 0.12 | 0.06 | 0.87 | 1.96 | 0.53 | 1.74 | 2.08 | 0.70 | 0.57 | 1.76 | 0.81 | 0.40 | 2.08 | |||||||||||||
1969 | 0.63 | 0.04 | 0.18 | 0.48 | 0.68 | 0.57 | 1.18 | 1.42 | 0.85 | 0.44 | 0.52 | 0.42 | 1.42 | |||||||||||||
1970 | 0.06 | 0.10 | 0.43 | 0.50 | 0.72 | 0.45 | 2.08 | 0.33 | 0.47 | 1.53 | 1.12 | 0.39 | 2.08 | |||||||||||||
1971 | 0.15 | 0.56 | 0.42 | 0.42 | 1.10 | 0.78 | 1.16 | 1.04 | 0.85 | 1.86 | 0.94 | 0.34 | 1.86 | |||||||||||||
1972 | 0.88 | 0.48 | 0.70 | 0.45 | 0.76 | 0.91 | 2.02 | 2.62 | 3.51 | 0.45 | 1.01 | 0.78 | 3.51 | |||||||||||||
1973 | 0.25 | 0.11 | 0.84 | 0.42 | 1.02 | 0.60 | 0.72 | 1.90 | 0.68 | 2.02 | 0.92 | 0.08 | 2.02 | |||||||||||||
1974 | 0.20 | 0.10 | 0.18 | 0.52 | 0.91 | 1.48 | 1.64 | 1.40 | 0.13 | 0.84 | 0.81 | 0.27 | 1.64 | |||||||||||||
1975 | 1.35 | c | 0.24 | 0.56 | 0.73 | 0.42 | 1.28 | 1.05 | 0.59 | 1.68 | 0.59 | 0.94 | 0.25 | 1.68 | c | |||||||||||
1976 | 0.17 | 0.36 | 0.89 | 0.33 | 0.05 | 1.41 | 0.42 | 1.65 | 0.62 | 0.35 | 0.03 | 0.20 | 1.65 | |||||||||||||
1977 | 0.38 | a | 0.94 | b | 1.74 | 0.41 | 1.28 | 0.49 | a | 1.65 | 0.82 | 0.90 | a | 0.98 | 0.39 | 0.30 | 1.74 | e | ||||||||
1978 | 0.21 | 0.23 | 1.00 | 0.42 | 0.26 | 1.03 | 1.85 | 2.70 | 0.30 | 0.20 | 1.65 | ----- | z | ----- | z | |||||||||||
1979 | 0.10 | 0.31 | 0.81 | 0.52 | 1.20 | 2.00 | 0.80 | 0.75 | 1.50 | 0.77 | 0.11 | 0.00 | 2.00 | |||||||||||||
1980 | 0.26 | 0.14 | b | 0.27 | a | 0.15 | 0.36 | ----- | z | 1.25 | 0.95 | 2.35 | 0.36 | 0.30 | 0.15 | ----- | z | |||||||||
1981 | 0.30 | 0.03 | 0.03 | 1.12 | 0.05 | b | 1.30 | 1.50 | 1.50 | 2.10 | 0.74 | 0.41 | 0.20 | 2.10 | b | |||||||||||
1982 | 0.70 | 0.20 | 0.63 | 0.51 | c | 1.29 | r | 0.76 | a | 1.87 | 0.23 | a | 1.16 | 2.50 | 1.48 | 1.20 | 2.50 | w | ||||||||
1983 | 0.54 | 0.12 | 0.70 | 0.58 | a | 0.36 | 0.36 | 1.00 | a | 1.71 | 2.03 | 0.97 | 1.26 | 1.47 | 2.03 | b | ||||||||||
1984 | 0.23 | 0.38 | 0.15 | 1.77 | 0.73 | 1.43 | 0.29 | 0.40 | 1.54 | 1.23 | 0.20 | 1.24 | 1.77 | |||||||||||||
1985 | 0.09 | 0.13 | 0.66 | 0.71 | 0.99 | 1.25 | 1.25 | 1.87 | 2.10 | 0.75 | 0.51 | 0.28 | 2.10 | |||||||||||||
1986 | 0.18 | 0.26 | 0.31 | 1.64 | ----- | z | 2.50 | 1.59 | 1.49 | 1.51 | 0.35 | 0.58 | 0.18 | ----- | z | |||||||||||
1987 | 0.22 | 0.10 | 0.12 | 0.22 | 0.60 | 0.40 | 2.05 | 0.50 | 0.73 | 0.43 | 0.34 | 0.18 | a | 2.05 | a | |||||||||||
1988 | ----- | z | ----- | z | 0.90 | c | 0.05 | 0.40 | 1.50 | f | ----- | z | 2.10 | 1.95 | b | 0.22 | 0.55 | 0.82 | j | ----- | z | |||||
1989 | 0.64 | a | 0.04 | a | 0.26 | 0.61 | 2.06 | c | 1.40 | 0.68 | 1.20 | b | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | |||||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.73 | 3.53 | 1.00 | 0.52 | 0.35 | ----- | z | |||||
1991 | 0.12 | a | 0.30 | c | ----- | z | 0.13 | i | 1.90 | e | 1.70 | 1.80 | t | 0.25 | 0.15 | h | 0.40 | b | 0.04 | d | 0.00 | e | ----- | z | ||
1992 | 0.28 | a | 0.23 | b | 0.32 | 0.52 | 0.28 | 2.02 | 1.53 | 1.24 | 0.90 | a | 0.20 | a | 0.47 | 0.08 | a | 2.02 | f | |||||||
1993 | 0.80 | a | 0.40 | w | 0.04 | a | 1.00 | e | 1.10 | 1.15 | 0.70 | d | ----- | z | 0.45 | ----- | z | 0.00 | i | ----- | z | ----- | z | |||
1994 | 0.20 | d | ----- | z | ----- | z | 0.00 | i | ----- | z | 0.00 | i | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | e | 0.00 | f | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1996 | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1997 | ----- | z | ----- | z | ----- | z | 0.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.34 | 0.24 | 0.54 | 0.70 | 0.85 | 1.12 | 1.24 | 1.23 | 1.32 | 0.81 | 0.66 | 0.40 | 2.03 | |||||||||||||
S.D. | 0.31 | 0.23 | 0.39 | 0.48 | 0.52 | 0.64 | 0.58 | 0.69 | 1.02 | 0.60 | 0.47 | 0.36 | 0.68 | |||||||||||||
SKEW | 1.56 | 1.48 | 0.87 | 1.04 | 0.57 | 0.33 | -0.08 | 0.53 | 1.33 | 1.06 | 0.44 | 1.62 | 2.17 | |||||||||||||
MAX | 1.35 | 0.94 | 1.74 | 1.96 | 2.06 | 2.50 | 2.08 | 2.73 | 4.35 | 2.50 | 1.65 | 1.47 | 4.35 | |||||||||||||
MIN | 0.05 | 0.00 | 0.03 | 0.00 | 0.05 | 0.00 | 0.29 | 0.23 | 0.13 | 0.00 | 0.00 | 0.00 | 1.16 | |||||||||||||
YRS | 32 | 31 | 32 | 33 | 31 | 32 | 31 | 33 | 32 | 33 | 33 | 30 | 22 |