YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.42 | 0.25 | ----- | z | ||
1912 | 0.70 | 0.28 | 0.32 | 0.43 | 0.59 | 0.25 | 0.05 | 0.45 | a | 0.31 | 0.54 | 0.38 | 0.42 | 0.70 | a | |||||||||||
1913 | 0.42 | 0.05 | 0.27 | r | 0.27 | 0.37 | 1.01 | 0.80 | 0.45 | 0.05 | 0.63 | 0.50 | 1.10 | 1.10 | r | |||||||||||
1914 | 0.48 | 0.32 | 0.03 | 0.15 | 0.32 | 0.37 | 0.36 | 0.04 | 0.17 | 0.65 | 0.05 | 0.06 | 0.65 | |||||||||||||
1915 | 0.60 | v | 0.53 | c | 0.80 | 0.26 | 0.51 | 0.17 | 0.25 | 0.00 | 0.14 | 0.04 | 0.41 | 0.49 | 0.80 | y | ||||||||||
1916 | 0.71 | n | 1.08 | 0.22 | t | 0.20 | 0.50 | 0.50 | 0.25 | 0.02 | 0.00 | 0.48 | 0.50 | 0.45 | ----- | z | ||||||||||
1917 | 0.36 | 0.10 | x | 0.13 | u | 0.36 | 0.18 | 0.06 | 0.03 | 0.03 | 1.20 | 0.00 | 0.55 | 0.38 | ----- | z | ||||||||||
1918 | 0.35 | 0.21 | 0.40 | 0.48 | 0.00 | 0.38 | 0.13 | 0.44 | 0.28 | 0.33 | 0.20 | 0.18 | 0.48 | |||||||||||||
1919 | 0.47 | 0.56 | 0.30 | 0.84 | 0.07 | 0.00 | 0.00 | 0.05 | 0.41 | 0.30 | 0.70 | 0.52 | 0.84 | |||||||||||||
1920 | 0.26 | 0.24 | 0.62 | 0.09 | 0.46 | 0.40 | 0.00 | 0.10 | 0.38 | 0.40 | 0.67 | 0.61 | 0.67 | |||||||||||||
1921 | 0.91 | 0.27 | 0.69 | 0.28 | 0.40 | 0.28 | 0.00 | 0.01 | 0.20 | 0.16 | 0.62 | 0.52 | 0.91 | |||||||||||||
1922 | 0.30 | 0.43 | 0.36 | 0.60 | 0.46 | 0.32 | 0.28 | 0.15 | 0.00 | 0.14 | 0.45 | 0.73 | 0.73 | |||||||||||||
1923 | 0.54 | 0.04 | 0.15 | 0.44 | 0.50 | 0.48 | 0.10 | 0.00 | ----- | z | 1.02 | 0.25 | 0.35 | ----- | z | |||||||||||
1924 | 0.35 | 0.49 | 0.31 | 0.16 | 0.04 | 0.21 | 0.02 | 0.30 | 0.06 | 0.42 | 0.29 | 0.52 | 0.52 | |||||||||||||
1925 | 0.95 | 0.41 | 0.46 | 0.35 | 0.14 | 0.11 | 0.18 | 0.03 | 0.59 | 0.58 | 0.25 | 0.35 | 0.95 | |||||||||||||
1926 | 0.56 | 0.96 | 0.21 | 0.31 | 0.88 | 0.50 | 0.05 | 0.72 | 0.04 | 0.00 | 0.69 | 0.27 | 0.96 | |||||||||||||
1927 | 0.25 | 0.70 | 0.27 | 1.04 | 0.35 | 0.62 | ----- | z | 0.20 | 0.35 | 0.30 | 0.75 | 0.67 | ----- | z | |||||||||||
1928 | 0.50 | 0.15 | 0.92 | 0.22 | 0.00 | 0.15 | 0.01 | 0.01 | 0.01 | 0.42 | 0.19 | 0.32 | 0.92 | |||||||||||||
1929 | 0.50 | 0.40 | 0.58 | 0.36 | 0.08 | 0.62 | 0.00 | 0.00 | 0.10 | 0.00 | 0.02 | 0.72 | 0.72 | |||||||||||||
1930 | 0.43 | 0.32 | 0.10 | 0.43 | 0.40 | 0.65 | 0.05 | 0.38 | 1.03 | 0.38 | 0.35 | 0.10 | 1.03 | |||||||||||||
1931 | 0.45 | 0.42 | 0.51 | 0.20 | 0.19 | 0.30 | ----- | z | ----- | z | 0.08 | 0.24 | 1.00 | 0.48 | ----- | z | ||||||||||
1932 | 0.40 | q | 0.10 | 0.61 | 0.70 | 0.78 | 0.06 | 0.12 | 0.06 | 0.00 | 0.53 | 0.35 | 0.92 | 0.92 | q | |||||||||||
1933 | 1.00 | 0.63 | 0.67 | 1.06 | 0.40 | 0.22 | x | 0.00 | 0.08 | 0.26 | 0.57 | 0.15 | a | 0.62 | a | ----- | z | |||||||||
1934 | 0.47 | 0.40 | 0.40 | 0.19 | 0.21 | 0.68 | 0.00 | 0.00 | 0.00 | 0.30 | 0.58 | 0.24 | 0.68 | |||||||||||||
1935 | 0.21 | 0.35 | 0.47 | 0.58 | 0.07 | 0.21 | 0.05 | 0.00 | 0.02 | 0.13 | 0.11 | 0.40 | 0.58 | |||||||||||||
1936 | 0.78 | 0.57 | 0.10 | 0.25 | 0.07 | 0.72 | 0.08 | 0.05 | 0.24 | 0.00 | 0.02 | 0.14 | 0.78 | |||||||||||||
1937 | 0.29 | 0.59 | 0.43 | 0.90 | 0.39 | 0.32 | 0.15 | 0.11 | 0.24 | 0.34 | 1.25 | 0.93 | 1.25 | |||||||||||||
1938 | 0.45 | 0.58 | 0.85 | 0.26 | 0.23 | 0.35 | 0.21 | 0.11 | 0.09 | 0.34 | 0.38 | 0.22 | 0.85 | |||||||||||||
1939 | 0.67 | 0.57 | 0.54 | 0.11 | 0.09 | 0.13 | 0.23 | 0.06 | 0.39 | 0.37 | 0.05 | 0.42 | 0.67 | |||||||||||||
1940 | 0.42 | 0.64 | 0.48 | 0.30 | 0.00 | 0.40 | 0.04 | 0.00 | 0.55 | 0.50 | 0.41 | 0.33 | 0.64 | |||||||||||||
1941 | 0.54 | 0.59 | 0.17 | 0.31 | 0.41 | 0.85 | 0.10 | 0.84 | 0.31 | 0.46 | 0.32 | 0.63 | 0.85 | |||||||||||||
1942 | 0.40 | 0.79 | 0.14 | 0.27 | 0.41 | 0.19 | 0.00 | 0.45 | 0.41 | 0.32 | 0.84 | 0.58 | 0.84 | |||||||||||||
1943 | 1.04 | 0.50 | 0.13 | 0.46 | 0.10 | 0.90 | 0.04 | 0.15 | 0.00 | 0.57 | 0.19 | 0.15 | 1.04 | |||||||||||||
1944 | 0.48 | a | 0.45 | 0.40 | 0.51 | 0.22 | 0.51 | 0.10 | 0.00 | 0.05 | 0.30 | 1.55 | 0.66 | 1.55 | a | |||||||||||
1945 | 0.33 | 0.37 | 0.56 | 0.07 | 0.50 | q | 0.51 | 0.09 | 0.15 | 0.32 | 0.37 | 0.32 | 0.65 | 0.65 | q | |||||||||||
1946 | 0.75 | 0.49 | 0.32 | 0.10 | 0.28 | 0.06 | 0.18 | 0.14 | 0.16 | 0.25 | 0.48 | 0.26 | 0.75 | |||||||||||||
1947 | 0.18 | 0.82 | 0.30 | 0.18 | 0.38 | 0.70 | 0.00 | 0.00 | 0.10 | 0.39 | 0.24 | 0.18 | 0.82 | |||||||||||||
1948 | 0.37 | 0.43 | 0.53 | 0.35 | 0.23 | 0.85 | 0.35 | 0.05 | 0.14 | 0.19 | 0.62 | 0.31 | 0.85 | |||||||||||||
1949 | 0.05 | 0.40 | 0.15 | 0.04 | 0.25 | 0.00 | 0.00 | 0.00 | 0.12 | 0.24 | 0.50 | 0.37 | 0.50 | |||||||||||||
1950 | 0.61 | 0.40 | 0.36 | 0.28 | 0.31 | 0.55 | 0.10 | 0.50 | 0.11 | 0.11 | 0.30 | 0.35 | 0.61 | |||||||||||||
1951 | 0.65 | 0.54 | 0.23 | 0.98 | 0.63 | 0.30 | 0.03 | 0.32 | 0.26 | 0.51 | 0.28 | 0.66 | d | 0.98 | d | |||||||||||
1952 | 0.80 | 0.62 | 0.28 | 0.52 | 0.15 | 0.43 | 0.07 | 0.00 | 0.32 | 0.00 | 0.97 | 0.38 | 0.97 | |||||||||||||
1953 | 0.43 | 0.31 | 0.38 | 0.43 | a | 0.68 | 0.56 | 0.00 | 0.07 | 0.00 | 0.18 | 0.46 | 0.83 | 0.83 | a | |||||||||||
1954 | 0.56 | 0.18 | 0.38 | 0.63 | 0.00 | a | 0.30 | 0.00 | 0.11 | 0.03 | 0.15 | 0.55 | 0.52 | 0.63 | a | |||||||||||
1955 | 0.29 | c | 0.55 | 0.10 | 0.36 | 0.22 | 0.24 | 0.14 | 0.00 | 0.36 | 0.28 | 0.50 | 0.54 | 0.55 | c | |||||||||||
1956 | 0.81 | 0.15 | 0.08 | 0.35 | 0.75 | 0.24 | 0.00 | 0.45 | 0.35 | 0.73 | 0.06 | 0.67 | 0.81 | |||||||||||||
1957 | 0.85 | 0.42 | d | 0.47 | a | 0.62 | 0.64 | 0.22 | 0.00 | 0.00 | 0.00 | 0.33 | 0.27 | i | 0.21 | 0.85 | n | |||||||||
1958 | 0.75 | 0.77 | 0.69 | 0.30 | 1.24 | 0.16 | 0.00 | 0.15 | 0.23 | 0.00 | 0.11 | 0.32 | 1.24 | |||||||||||||
1959 | 0.47 | 0.43 | 0.35 | 0.00 | c | 0.91 | 0.09 | 0.00 | 0.55 | 1.23 | 0.19 | 0.35 | 0.72 | 1.23 | c | |||||||||||
1960 | 0.28 | 0.55 | 0.34 | 0.44 | 0.53 | 0.00 | 0.10 | 0.45 | 0.35 | 0.25 | 0.39 | 0.30 | 0.55 | |||||||||||||
1961 | 0.33 | 0.35 | 0.24 | 0.09 | 0.30 | 0.00 | 0.17 | 0.17 | 0.86 | 0.39 | 0.48 | 0.49 | 0.86 | |||||||||||||
1962 | 0.46 | 0.41 | 0.13 | 0.45 | 0.40 | 0.06 | 0.66 | 0.24 | 0.17 | 0.86 | 0.38 | 0.45 | 0.86 | |||||||||||||
1963 | 0.83 | 0.39 | 0.11 | 1.05 | 0.20 | 0.48 | 0.00 | 0.16 | 0.24 | ----- | z | 0.63 | 0.43 | ----- | z | |||||||||||
1964 | 0.87 | ----- | z | 0.26 | 0.68 | 0.34 | 0.49 | 0.19 | 0.28 | 0.22 | 0.09 | 0.31 | 0.73 | ----- | z | |||||||||||
1965 | 0.63 | 0.05 | 0.25 | 0.29 | 0.04 | 0.38 | 0.05 | 0.44 | 0.05 | 0.08 | 0.59 | 0.34 | 0.63 | |||||||||||||
1966 | 0.08 | 0.23 | 0.30 | 0.18 | 0.08 | 0.58 | 0.00 | 0.00 | 0.38 | 0.27 | 0.68 | 0.56 | 0.68 | |||||||||||||
1967 | 0.45 | 0.04 | 0.38 | 0.36 | 0.31 | 0.56 | 0.03 | 0.00 | 0.51 | 0.29 | 0.35 | 0.63 | 0.63 | |||||||||||||
1968 | 0.39 | 0.51 | 0.38 | 0.21 | ----- | z | 0.13 | 0.00 | 0.53 | 0.06 | 0.28 | 0.46 | 1.09 | ----- | z | |||||||||||
1969 | 1.00 | 0.47 | 0.48 | 0.46 | 0.38 | 0.88 | 0.05 | 0.00 | 0.20 | 0.22 | 0.16 | 0.53 | 1.00 | |||||||||||||
1970 | 0.61 | 0.09 | 0.42 | 0.19 | 0.39 | 0.75 | 0.04 | 0.00 | 0.59 | 0.60 | 0.52 | 0.33 | 0.75 | |||||||||||||
1971 | 0.57 | 0.16 | 0.21 | 0.35 | 0.09 | 0.40 | 0.00 | 0.07 | 0.15 | 0.35 | 1.27 | 0.63 | 1.27 | |||||||||||||
1972 | 0.30 | 0.42 | 0.51 | 0.07 | 0.29 | 0.89 | 0.00 | 0.18 | 0.29 | 0.08 | 0.28 | 0.67 | 0.89 | |||||||||||||
1973 | 0.67 | 0.37 | i | 0.76 | 0.31 | 0.32 | ----- | z | 0.00 | 0.00 | 0.25 | 0.18 | 0.46 | 0.68 | ----- | z | ||||||||||
1974 | 0.35 | 0.22 | 0.31 | 0.07 | 0.02 | 0.13 | 0.25 | 0.09 | 0.00 | 0.29 | 0.30 | 0.80 | 0.80 | |||||||||||||
1975 | 0.21 | 0.60 | 0.72 | 0.66 | 0.14 | 0.67 | 0.02 | 0.39 | 0.00 | 1.32 | 0.45 | 0.15 | o | 1.32 | o | |||||||||||
1976 | 1.20 | 0.20 | f | 0.20 | d | 0.75 | 0.15 | 0.14 | 0.18 | 0.24 | 0.52 | 0.12 | 0.18 | 0.03 | 1.20 | j | ||||||||||
1977 | 0.65 | 0.98 | 0.34 | 0.02 | 0.54 | 0.08 | 0.22 | 0.36 | a | 0.36 | 0.18 | 0.83 | ----- | z | ----- | z | ||||||||||
1978 | 0.60 | 0.50 | 0.30 | 1.10 | 0.16 | 0.30 | 0.85 | 0.10 | 0.41 | 0.00 | 0.60 | 0.23 | 1.10 | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 0.62 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.70 | 0.18 | 0.08 | 0.03 | 0.46 | 0.60 | 0.70 | ----- | z | |||||||
1982 | 0.58 | 0.82 | 0.20 | a | 0.90 | v | 0.11 | 1.25 | 0.68 | 0.03 | ----- | z | ----- | z | 0.55 | 0.71 | c | ----- | z | |||||||
1983 | 0.90 | d | 0.12 | b | 0.43 | 0.40 | 0.28 | a | 0.45 | 0.40 | 0.30 | 0.05 | 0.40 | 0.90 | a | 0.10 | g | 0.90 | o | |||||||
1984 | 0.41 | a | ----- | z | 0.62 | 0.50 | 0.52 | 0.35 | 0.00 | 0.00 | 0.00 | 0.07 | 0.50 | a | ----- | z | ----- | z | ||||||||
1985 | ----- | z | ----- | z | ----- | z | 0.15 | 0.31 | 0.29 | 0.09 | 0.00 | a | 0.43 | 0.53 | 0.29 | 0.45 | a | ----- | z | |||||||
1986 | 0.00 | b | 2.55 | j | 0.30 | 0.21 | 0.19 | 0.00 | 0.02 | 0.09 | 0.39 | 0.05 | 0.45 | 0.11 | 2.55 | l | ||||||||||
1987 | 0.37 | 0.20 | 0.87 | ----- | z | 0.66 | 0.35 | 0.17 | 0.80 | 0.00 | 0.00 | 0.53 | 0.15 | b | ----- | z | ||||||||||
1988 | 0.09 | h | 0.00 | 0.24 | a | 0.24 | 0.40 | 0.37 | 0.15 | 0.06 | a | 0.11 | ----- | z | 0.51 | b | 0.55 | ----- | z | |||||||
1989 | 0.50 | b | 0.70 | 0.56 | 0.26 | 0.59 | a | 0.58 | 0.03 | 0.50 | 1.02 | 0.16 | 0.10 | 0.35 | 1.02 | c | ||||||||||
1990 | 0.40 | a | 0.20 | c | 0.30 | a | 0.82 | 0.66 | 0.50 | 0.10 | 0.66 | a | 0.00 | 0.32 | 0.30 | 0.40 | a | 0.82 | g | |||||||
1991 | 0.06 | a | 0.33 | 0.48 | 0.50 | ----- | z | ----- | z | 0.00 | ----- | z | 0.13 | 0.40 | 0.38 | 0.49 | a | ----- | z | |||||||
1992 | 0.27 | 0.36 | 0.11 | 0.16 | 0.26 | 1.04 | 0.27 | 0.03 | 0.06 | 0.56 | 0.44 | 0.50 | b | 1.04 | b | |||||||||||
1993 | 0.57 | a | 0.37 | 0.48 | 0.60 | 0.31 | 0.93 | 0.96 | ----- | z | 0.00 | 0.28 | ----- | z | ----- | z | ----- | z | ||||||||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | 0.39 | 0.20 | 0.36 | 0.35 | 0.53 | 0.16 | 0.22 | 0.05 | 0.84 | 0.46 | a | 0.47 | 0.68 | 0.84 | a | |||||||||||
1997 | 0.70 | 0.29 | 0.27 | 0.27 | 0.14 | 0.26 | 1.15 | 0.22 | 0.10 | a | 0.42 | 0.52 | 0.62 | 1.15 | a | |||||||||||
1998 | 0.49 | 0.41 | 0.46 | 0.43 | 1.58 | 0.21 | 0.10 | 0.00 | 0.68 | 0.04 | 0.44 | 0.37 | 1.58 | |||||||||||||
1999 | 0.37 | 0.59 | 0.11 | 0.51 | 0.14 | 1.20 | 0.00 | 0.10 | 0.00 | 0.46 | 0.46 | 0.41 | 1.20 | |||||||||||||
2000 | 0.42 | 0.62 | 0.24 | 0.28 | 0.15 | 0.24 | 0.02 | 0.03 | 0.25 | 0.35 | 0.25 | 0.50 | 0.62 | |||||||||||||
2001 | 0.52 | 0.16 | 0.34 | 0.26 | 0.17 | 0.51 | 0.12 | 0.00 | 0.19 | 0.37 | 0.76 | 0.60 | 0.76 | |||||||||||||
2002 | 0.26 | 0.21 | 0.16 | 0.26 | 0.02 | 0.14 | 0.00 | 0.22 | 0.09 | 0.07 | 0.24 | 0.77 | 0.77 | |||||||||||||
2003 | 0.36 | 0.25 | 0.47 | 0.22 | 0.43 | 0.30 | 0.10 | 0.03 | a | 0.05 | 0.03 | 0.33 | 0.38 | 0.47 | a | |||||||||||
2004 | 0.61 | 0.80 | 0.10 | 0.33 | 0.37 | 0.21 | 0.15 | 0.24 | 0.11 | 0.33 | 0.40 | 0.34 | 0.80 | |||||||||||||
2005 | 0.30 | 0.07 | 0.41 | 0.25 | 0.46 | 0.34 | 0.30 | 0.01 | 0.00 | a | 0.50 | 0.39 | 0.71 | 0.71 | a | |||||||||||
2006 | 0.79 | 0.53 | 0.66 | 0.47 | 0.22 | 0.17 | 0.01 | 0.45 | 0.17 | a | 0.12 | 0.30 | 0.66 | 0.79 | a | |||||||||||
2007 | 0.07 | 0.40 | 0.08 | 0.41 | 0.26 | 0.25 | 0.04 | 0.12 | 0.22 | 0.45 | 0.89 | 0.42 | 0.89 | |||||||||||||
2008 | 0.46 | b | 0.21 | a | 0.18 | 0.50 | 0.37 | 0.48 | ----- | z | 0.05 | 0.84 | 0.26 | 0.58 | 0.60 | ----- | z | |||||||||
2009 | 0.30 | 0.23 | 0.35 | 0.10 | 0.39 | 0.60 | 0.11 | 0.24 | 0.00 | 0.62 | 0.22 | 1.15 | 1.15 | |||||||||||||
2010 | 1.00 | k | 0.60 | 0.18 | m | 0.57 | 0.30 | 0.60 | 0.00 | 0.09 | u | 0.10 | 0.47 | 0.75 | 0.61 | k | ----- | z | ||||||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | 0.55 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.21 | 0.30 | ----- | z | ||
2012 | 0.43 | b | 0.13 | 0.12 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.50 | 0.41 | 0.37 | 0.38 | 0.34 | 0.41 | 0.14 | 0.17 | 0.25 | 0.32 | 0.46 | 0.49 | 0.85 | |||||||||||||
S.D. | 0.24 | 0.23 | 0.20 | 0.25 | 0.26 | 0.28 | 0.22 | 0.20 | 0.27 | 0.23 | 0.27 | 0.23 | 0.24 | |||||||||||||
SKEW | 0.50 | 0.47 | 0.62 | 1.08 | 1.69 | 0.81 | 2.72 | 1.34 | 1.71 | 1.15 | 1.28 | 0.45 | 0.90 | |||||||||||||
MAX | 1.20 | 1.08 | 0.92 | 1.10 | 1.58 | 1.25 | 1.15 | 0.84 | 1.23 | 1.32 | 1.55 | 1.15 | 1.58 | |||||||||||||
MIN | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.03 | 0.47 | |||||||||||||
YRS | 89 | 88 | 89 | 92 | 92 | 92 | 92 | 91 | 93 | 92 | 95 | 91 | 64 |