YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | 1.16 | 1.38 | 1.88 | 0.32 | 1.29 | 0.85 | 0.00 | 0.64 | 7.52 | d | ||||||||
1909 | 1.75 | 0.92 | 0.48 | 0.17 | 1.89 | 0.61 | 0.40 | 0.00 | 3.26 | r | 0.48 | 2.71 | 2.83 | 12.24 | a | |||||||||||
1910 | 0.65 | 1.15 | 1.32 | 0.30 | 0.93 | 0.45 | 0.43 | 0.00 | 0.91 | 1.14 | 2.37 | 0.71 | 10.36 | |||||||||||||
1911 | 0.56 | 0.64 | 0.18 | 0.87 | 0.63 | 2.63 | 0.20 | 0.05 | 0.46 | ----- | z | ----- | z | ----- | z | 6.22 | c | |||||||||
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.75 | 0.03 | 0.35 | 0.00 | 0.00 | 0.60 | 1.73 | f | ||||||
1937 | 1.58 | 0.95 | 1.02 | 0.77 | 0.00 | 0.86 | 1.13 | 0.05 | 0.64 | 0.93 | 1.62 | 1.47 | 11.02 | |||||||||||||
1938 | 0.97 | 1.61 | 0.93 | 0.20 | 0.47 | 1.26 | 1.15 | 0.48 | 0.64 | 0.44 | 0.50 | 0.67 | 9.32 | |||||||||||||
1939 | 0.64 | 1.14 | 1.04 | 0.21 | 1.19 | 0.21 | 0.15 | 0.00 | 0.32 | 0.63 | a | 0.02 | 0.78 | 6.33 | ||||||||||||
1940 | 1.05 | 1.37 | 1.61 | 1.25 | 0.39 | 0.38 | 1.53 | 0.03 | 3.08 | 2.68 | 1.67 | 1.00 | 16.04 | |||||||||||||
1941 | 1.05 | 1.34 | 0.23 | 0.78 | 2.29 | 2.00 | 0.70 | 2.51 | 0.38 | 1.04 | 0.92 | 2.09 | 15.33 | |||||||||||||
1942 | 1.19 | 1.62 | 0.42 | 0.80 | 2.19 | 0.38 | 0.18 | 0.66 | 0.05 | 0.39 | 2.04 | a | 2.43 | 12.35 | ||||||||||||
1943 | 1.95 | 0.27 | 1.14 | 1.10 | 1.05 | 1.94 | 1.47 | 0.30 | 0.00 | 1.04 | 0.42 | 0.69 | 11.37 | |||||||||||||
1944 | 0.23 | 0.85 | 0.30 | 0.65 | 0.70 | 3.23 | 0.64 | 0.01 | 0.13 | 0.13 | 1.13 | 0.57 | 8.57 | |||||||||||||
1945 | 0.83 | 1.40 | 0.60 | 0.60 | 2.21 | 0.71 | 0.15 | 0.42 | 0.42 | 0.33 | 1.50 | 1.93 | 11.10 | |||||||||||||
1946 | 0.86 | 0.27 | 0.77 | 0.27 | 2.09 | 0.83 | t | 0.70 | 0.25 | 1.29 | 1.33 | 1.72 | ----- | z | 9.55 | b | ||||||||||
1947 | 1.44 | 0.93 | 0.69 | a | 1.37 | 0.73 | 2.18 | ----- | z | ----- | z | 0.82 | ----- | z | ----- | z | ----- | z | 8.16 | e | ||||||
1948 | 0.40 | 0.71 | 1.31 | 0.13 | 2.10 | 2.83 | 0.10 | 0.26 | 1.16 | ----- | z | 1.51 | a | 2.29 | a | 12.80 | a | |||||||||
1949 | 0.17 | a | 1.22 | 0.03 | 0.42 | g | 1.79 | a | 0.00 | 0.00 | 0.22 | 0.68 | 0.18 | 1.50 | c | 0.45 | u | 5.79 | b | |||||||
1950 | 1.35 | 0.90 | 1.07 | a | 0.41 | c | 0.00 | 1.80 | 0.23 | 0.55 | 0.36 | 1.45 | j | ----- | z | 1.11 | h | 6.67 | c | |||||||
1951 | 1.56 | 0.55 | 0.71 | 0.00 | 0.71 | 0.86 | 0.21 | 0.40 | 0.00 | a | 0.58 | j | 0.67 | d | 1.58 | 7.25 | a | |||||||||
1952 | 1.72 | 0.68 | b | 0.48 | 0.71 | 1.52 | 1.90 | 0.03 | 0.25 | 0.74 | 0.00 | 0.37 | 1.33 | 9.73 | ||||||||||||
1953 | 1.05 | c | 1.44 | 0.84 | 0.32 | 3.72 | 1.22 | 0.00 | 0.85 | 0.02 | 0.58 | 0.81 | 0.88 | 11.73 | ||||||||||||
1954 | 0.92 | 0.28 | 0.43 | 0.40 | 0.52 | 1.37 | 0.03 | 0.69 | 0.16 | 0.24 | 0.23 | 0.65 | 5.92 | |||||||||||||
1955 | 0.47 | 0.24 | 0.71 | a | 1.21 | 0.39 | 0.92 | 1.13 | 0.00 | 0.81 | 0.46 | a | 1.20 | 2.54 | a | 10.08 | ||||||||||
1956 | 1.82 | 0.83 | 0.21 | 0.42 | 1.50 | a | 0.88 | 1.25 | 0.39 | 0.09 | 2.19 | 0.15 | a | 1.10 | 10.83 | |||||||||||
1957 | 0.83 | 1.00 | 1.90 | 0.68 | 2.47 | 1.20 | 0.04 | 0.38 | 0.98 | a | 1.94 | 0.33 | 1.96 | 13.71 | ||||||||||||
1958 | 0.97 | 1.47 | 0.92 | 1.38 | c | 0.81 | 2.45 | 0.62 | 0.73 | 0.54 | 0.00 | c | 0.77 | 1.05 | a | 11.71 | ||||||||||
1959 | 1.37 | 0.37 | 0.34 | 0.27 | 1.37 | 0.09 | 0.06 | 0.36 | 1.56 | 0.45 | 0.45 | 0.41 | 7.10 | |||||||||||||
1960 | 0.82 | 1.17 | 1.03 | 0.36 | 1.83 | 0.08 | 1.00 | 0.19 | 1.26 | 0.24 | 2.41 | 1.07 | 11.46 | |||||||||||||
1961 | 0.19 | 0.50 | 0.70 | 0.29 | 1.29 | 0.86 | 0.09 | 0.41 | 0.61 | 0.52 | 1.11 | 0.99 | 7.56 | |||||||||||||
1962 | 1.03 | 0.90 | 0.34 | b | 0.71 | 2.48 | 0.07 | 0.14 | 0.03 | 0.35 | 2.52 | 1.49 | 0.70 | 10.76 | ||||||||||||
1963 | 0.66 | 0.89 | 0.46 | 1.63 | 1.35 | 1.22 | 0.25 | 0.50 | 0.53 | 0.08 | 1.08 | 1.20 | 9.85 | |||||||||||||
1964 | 0.70 | s | 0.24 | 0.61 | a | 0.52 | 0.78 | 1.43 | a | 0.80 | 0.54 | 0.41 | 0.11 | 0.88 | 3.86 | 10.18 | a | |||||||||
1965 | 3.23 | 0.16 | 0.50 | 1.38 | 0.87 | 1.74 | 1.14 | 3.84 | 0.21 | 0.02 | a | 0.65 | d | 0.36 | 14.10 | |||||||||||
1966 | 0.44 | 0.81 | 0.77 | 0.04 | b | 0.19 | 0.92 | 0.35 | 0.03 | 0.87 | 0.52 | 1.66 | 1.27 | a | 7.87 | |||||||||||
1967 | 0.75 | 0.05 | 0.96 | 0.53 | a | 0.60 | a | 1.64 | a | 0.10 | 0.07 | 0.43 | 1.44 | a | 0.73 | b | 0.73 | b | 8.03 | |||||||
1968 | 1.11 | 0.53 | g | 0.06 | 0.02 | c | 0.52 | a | 1.00 | 0.01 | 2.93 | 0.11 | 1.05 | 2.00 | c | 1.56 | 10.37 | a | ||||||||
1969 | 1.41 | a | 0.88 | 0.37 | 0.33 | 2.02 | 2.49 | a | 0.02 | 0.00 | 0.48 | 0.33 | a | 0.25 | 1.64 | a | 10.22 | |||||||||
1970 | 1.95 | 0.32 | 1.55 | a | 0.22 | 1.71 | 1.40 | 0.39 | 0.05 | 0.46 | 0.36 | f | 2.43 | b | 1.39 | 11.87 | a | |||||||||
1971 | 1.79 | a | 0.09 | 1.11 | 0.23 | 0.45 | 1.37 | 0.32 | 0.15 | 1.08 | 0.31 | b | ----- | z | ----- | z | 6.90 | b | ||||||||
1972 | 1.89 | 0.57 | 1.35 | 0.03 | 1.01 | 1.41 | 0.11 | 0.43 | 0.20 | 0.03 | g | 0.99 | 1.12 | 9.11 | a | |||||||||||
1973 | 0.98 | 0.14 | 0.12 | 0.25 | 0.95 | 0.18 | 0.25 | 0.26 | 0.39 | 0.45 | b | ----- | z | 1.93 | d | 5.90 | a | |||||||||
1974 | 1.39 | 0.59 | a | 1.34 | 0.03 | 0.53 | a | 0.18 | 0.90 | 0.24 | 0.00 | 0.24 | 0.38 | 1.80 | 7.62 | |||||||||||
1975 | 1.20 | a | 1.56 | 0.84 | 1.19 | 0.47 | 1.76 | 1.27 | 0.58 | 0.16 | 1.25 | 0.87 | d | 1.02 | 12.17 | |||||||||||
1976 | 1.43 | 0.44 | 0.62 | 1.41 | b | 0.53 | 1.32 | 0.00 | 2.13 | 0.43 | 0.29 | 0.44 | 0.26 | 9.30 | ||||||||||||
1977 | 0.31 | 0.61 | 0.24 | b | 0.04 | 1.54 | 1.33 | 0.43 | 0.84 | 0.79 | 0.52 | a | 1.74 | 1.88 | b | 10.27 | ||||||||||
1978 | 1.61 | 1.19 | 0.89 | a | 1.82 | 0.96 | 0.81 | a | 0.84 | 0.37 | 1.16 | 0.01 | 1.66 | 1.09 | 12.41 | |||||||||||
1979 | 1.38 | a | 1.80 | 0.94 | c | 1.42 | 0.89 | a | 0.53 | 0.16 | 2.23 | 0.64 | 0.65 | 1.56 | 0.70 | b | 12.90 | |||||||||
1980 | 1.18 | a | 0.85 | a | 0.73 | 1.25 | 2.46 | 3.33 | 0.68 | 0.73 | 1.64 | 0.45 | 0.96 | 1.56 | c | 15.82 | ||||||||||
1981 | 0.84 | 0.95 | b | 0.73 | 0.76 | 2.16 | a | 0.90 | 0.28 | 0.27 | 0.60 | 1.00 | b | 2.61 | 2.27 | c | 13.37 | |||||||||
1982 | 1.46 | i | 0.46 | j | 1.14 | x | 0.20 | a | 0.69 | m | 1.54 | e | 2.21 | f | 0.86 | 0.52 | 1.24 | 0.89 | d | 1.10 | e | 6.35 | e | |||
1983 | 2.61 | b | 0.65 | f | 1.98 | a | 2.03 | b | 0.75 | e | 0.49 | 0.73 | a | 1.73 | 0.37 | 0.41 | 1.47 | c | 2.79 | i | 12.57 | b | ||||
1984 | 0.53 | d | 0.76 | c | 1.15 | o | 0.24 | i | 0.62 | 1.41 | 0.99 | 3.47 | 0.24 | 0.90 | e | 1.62 | f | 0.79 | a | 9.71 | c | |||||
1985 | 0.37 | b | ----- | z | 0.35 | c | 0.50 | b | 0.96 | e | 0.41 | 0.30 | 0.65 | 1.14 | 0.44 | e | 1.03 | g | 1.18 | b | 6.30 | b | ||||
1986 | 1.24 | c | 1.40 | g | 0.46 | 0.40 | 0.53 | 0.23 | d | 0.33 | 0.20 | 1.12 | 0.41 | b | 0.84 | i | ----- | z | 4.92 | c | ||||||
1987 | ----- | z | ----- | z | ----- | z | 0.03 | p | 0.06 | k | 0.69 | g | 0.77 | 0.07 | 0.00 | 0.00 | 0.75 | a | 1.07 | a | 2.66 | f | ||||
1988 | 1.02 | f | ----- | z | 0.74 | c | 0.47 | b | 0.58 | g | 1.68 | b | 0.38 | 0.31 | a | 0.33 | a | 0.00 | 1.57 | e | 1.48 | d | 6.96 | c | ||
1989 | 1.55 | g | 0.67 | b | 1.29 | d | 1.04 | d | 1.60 | c | 0.56 | a | 0.31 | 2.36 | b | 0.62 | a | 0.44 | a | 0.46 | b | 0.08 | 9.43 | a | ||
1990 | 0.64 | e | 0.37 | d | 0.50 | b | 1.82 | d | 1.13 | e | 0.87 | b | 0.29 | c | 1.44 | b | 0.35 | a | 0.76 | a | 0.51 | a | 0.66 | h | 8.68 | a |
1991 | 0.57 | d | 0.24 | g | 0.77 | g | 0.51 | b | 2.99 | d | 1.57 | b | 0.39 | 0.18 | c | 0.64 | a | 0.32 | a | 1.85 | d | 0.35 | d | 9.37 | b | |
1992 | 0.51 | d | 0.18 | b | 0.69 | a | 0.73 | a | 0.39 | b | 2.53 | c | 1.11 | b | 0.37 | a | 0.33 | a | 0.78 | b | 1.77 | d | 1.10 | h | 9.39 | a |
1993 | 2.06 | l | 0.96 | g | 0.93 | a | 1.36 | d | 0.90 | g | 2.52 | e | 0.20 | 0.54 | b | 0.00 | g | 0.99 | c | 0.17 | d | 0.63 | c | 7.34 | d | |
1994 | 0.13 | d | 0.91 | e | 0.34 | a | 0.98 | a | 1.83 | e | 0.58 | 0.09 | 0.24 | 0.08 | 0.58 | b | 1.12 | e | 0.77 | g | 6.88 | a | ||||
1995 | 1.60 | d | 0.68 | b | 1.25 | c | 0.70 | e | 1.36 | c | 1.66 | b | 0.70 | c | 0.98 | a | 0.15 | 0.43 | 1.84 | c | 1.62 | n | 11.35 | a | ||
1996 | 1.55 | n | 0.65 | f | 0.80 | b | 0.52 | 1.43 | a | 0.95 | a | 0.01 | 0.72 | 0.17 | a | 0.80 | b | 1.15 | c | 3.63 | f | 6.55 | c | |||
1997 | 1.90 | b | 0.10 | b | 0.13 | b | 0.73 | a | 1.10 | b | 1.80 | d | 1.64 | b | 0.39 | d | 0.45 | b | 0.67 | d | 0.59 | d | 0.41 | b | 9.91 | |
1998 | 1.95 | f | 1.19 | e | 0.90 | d | 1.51 | e | 3.04 | d | 0.78 | c | 1.53 | c | 0.02 | 1.47 | d | 0.07 | b | 2.01 | f | 0.98 | d | 11.49 | b | |
1999 | 1.09 | e | 1.75 | g | 0.42 | b | 0.42 | e | 0.53 | d | 0.63 | f | 0.00 | 0.73 | g | 0.00 | 0.66 | 0.65 | c | 1.07 | d | 4.84 | c | |||
2000 | 1.56 | j | 1.17 | d | 0.70 | b | 0.63 | c | 0.64 | g | 0.84 | c | 0.28 | f | 0.00 | 0.81 | c | 1.84 | j | 0.75 | d | 0.51 | g | 4.90 | e | |
2001 | 0.81 | d | 0.36 | b | 0.69 | f | 0.96 | c | 0.59 | b | 0.62 | b | 1.59 | h | 0.32 | d | 0.40 | b | 0.79 | d | 1.02 | c | 1.74 | h | 5.87 | c |
2002 | 1.23 | f | 0.11 | 0.62 | g | 1.05 | d | 0.22 | e | 0.40 | h | 0.42 | b | 0.78 | e | 0.19 | f | 0.09 | 0.27 | 1.52 | k | 2.94 | e | |||
2003 | 1.00 | e | 0.16 | e | 1.28 | h | 1.81 | d | 1.48 | d | 1.04 | a | 0.84 | b | 0.35 | b | 0.09 | a | 0.35 | c | 0.60 | f | 0.97 | f | 7.12 | c |
2004 | 2.02 | i | 1.25 | d | 0.27 | 0.55 | a | 1.92 | c | 1.06 | c | 1.26 | a | 0.97 | b | 0.35 | a | 2.00 | d | 0.49 | c | 1.07 | r | 10.12 | b | |
2005 | 0.44 | l | 0.02 | f | 0.95 | f | 1.06 | f | 2.54 | g | 1.11 | h | 0.37 | b | 0.07 | b | 0.17 | b | 1.38 | h | 1.28 | f | ----- | z | 0.61 | i |
2006 | ----- | z | 0.37 | c | 0.76 | w | 1.02 | f | 2.09 | g | 1.39 | g | 0.28 | d | 0.14 | 0.42 | c | 0.21 | i | 0.81 | l | 0.94 | h | 1.21 | h | |
2007 | 0.40 | u | 0.50 | o | 0.17 | e | 1.31 | h | 0.53 | c | 0.77 | b | 0.13 | c | 0.23 | b | 0.30 | c | 1.01 | b | 1.14 | e | ----- | z | 4.28 | d |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.10 | 0.77 | 0.74 | 0.72 | 1.23 | 1.21 | 0.52 | 0.60 | 0.56 | 0.66 | 1.08 | 1.23 | 10.75 | |||||||||||||
S.D. | 0.60 | 0.46 | 0.44 | 0.52 | 0.79 | 0.78 | 0.48 | 0.80 | 0.50 | 0.60 | 0.69 | 0.72 | 2.55 | |||||||||||||
SKEW | 0.86 | 0.23 | 0.67 | 0.68 | 0.81 | 0.68 | 0.92 | 2.34 | 2.05 | 1.53 | 0.47 | 1.17 | 0.19 | |||||||||||||
MAX | 3.23 | 1.80 | 1.98 | 2.03 | 3.72 | 3.33 | 1.88 | 3.84 | 3.08 | 2.68 | 2.71 | 3.86 | 16.04 | |||||||||||||
MIN | 0.13 | 0.05 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 5.92 | |||||||||||||
YRS | 60 | 61 | 65 | 68 | 68 | 69 | 72 | 74 | 73 | 66 | 64 | 55 | 35 |