YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | 0.17 | 0.35 | 0.48 | 0.26 | 0.10 | 0.31 | 0.46 | 0.03 | ----- | z | ----- | z | 0.90 | ----- | z | |||||||||
1907 | 0.60 | 0.41 | 1.31 | 0.00 | 0.00 | 0.52 | 0.00 | 0.00 | 0.00 | 0.70 | 0.00 | 0.20 | 1.31 | |||||||||||||
1908 | 0.20 | 0.90 | 0.45 | 0.50 | 0.50 | 0.00 | ----- | z | 0.45 | 0.20 | 1.00 | 0.00 | 0.06 | ----- | z | |||||||||||
1909 | 0.26 | 0.62 | 0.48 | 0.03 | 0.00 | 0.40 | 0.58 | 0.19 | 1.52 | 0.39 | 0.72 | a | 0.20 | 1.52 | a | |||||||||||
1910 | 0.87 | 0.00 | 0.29 | 0.08 | 0.02 | 0.00 | 0.48 | 0.05 | 0.92 | 0.78 | 0.49 | 0.58 | 0.92 | |||||||||||||
1911 | 0.39 | 0.44 | 0.39 | 0.11 | 0.08 | 0.64 | 0.90 | 0.00 | 0.48 | 0.30 | 0.10 | 0.11 | 0.90 | |||||||||||||
1912 | 0.08 | 0.00 | 0.58 | 0.45 | 0.10 | 0.00 | 0.19 | 0.00 | 0.04 | 0.70 | 0.38 | 0.06 | 0.70 | |||||||||||||
1913 | 0.22 | a | 0.24 | 0.25 | 0.19 | 1.02 | 1.41 | 0.35 | 0.36 | 1.72 | 0.02 | 0.38 | 0.12 | 1.72 | a | |||||||||||
1914 | 0.98 | 0.91 | 0.01 | 0.92 | 0.29 | 0.54 | 0.15 | 0.44 | 1.40 | 0.00 | 0.04 | 0.22 | 1.40 | |||||||||||||
1915 | 0.28 | 0.42 | 0.49 | 0.97 | 0.17 | 0.00 | 0.94 | 0.01 | 0.61 | 0.00 | 0.00 | 0.45 | 0.97 | |||||||||||||
1916 | 1.05 | 0.24 | 0.52 | 0.30 | 0.70 | 0.00 | 0.15 | 0.82 | 0.23 | 0.78 | 0.22 | 0.18 | 1.05 | |||||||||||||
1917 | 0.05 | 0.39 | 0.00 | 0.29 | 0.41 | 0.00 | 0.81 | 0.19 | 0.03 | 0.07 | 0.90 | 0.00 | 0.90 | |||||||||||||
1918 | 0.02 | 0.99 | 0.54 | 0.00 | 0.39 | w | 2.43 | 0.70 | 0.35 | 0.31 | 0.43 | 0.03 | 0.40 | 2.43 | w | |||||||||||
1919 | 0.00 | 0.17 | r | 0.90 | 0.06 | 0.50 | ----- | z | 0.09 | 0.04 | 0.09 | 0.76 | 0.02 | ----- | z | ----- | z | |||||||||
1920 | ----- | z | 0.58 | 0.76 | v | ----- | z | ----- | z | 0.20 | y | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ||
1921 | 0.80 | 0.10 | 0.06 | 0.00 | 1.00 | 0.00 | 0.00 | 0.80 | 0.00 | 0.00 | 0.00 | 1.00 | a | 1.00 | a | |||||||||||
1922 | 0.38 | b | 0.45 | 0.20 | 0.40 | ----- | z | ----- | z | ----- | z | 0.06 | 0.00 | 0.00 | 0.64 | 0.86 | ----- | z | ||||||||
1923 | 0.36 | 0.00 | 0.00 | ----- | z | 0.31 | 0.38 | ----- | z | 0.09 | 0.55 | 0.03 | 0.12 | 0.15 | ----- | z | ||||||||||
1924 | 0.10 | 0.01 | 0.18 | 0.05 | 0.00 | 0.00 | 0.01 | 0.06 | ----- | z | 0.00 | 0.15 | ----- | z | ----- | z | ||||||||||
1925 | 0.16 | ----- | z | 0.27 | ----- | z | ----- | z | ----- | z | 0.29 | ----- | z | ----- | z | ----- | z | 0.10 | ----- | z | ----- | z | ||||
1926 | 0.00 | 0.10 | 0.15 | 0.16 | 0.00 | 0.16 | 0.28 | 0.11 | 0.00 | 0.46 | 0.20 | 0.16 | 0.46 | |||||||||||||
1927 | 0.00 | 0.20 | 0.14 | 0.05 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.63 | 0.00 | 0.00 | 0.63 | |||||||||||||
1928 | 0.16 | 0.14 | 0.20 | 0.00 | 0.20 | 0.00 | ----- | z | 0.00 | 0.00 | 0.05 | 0.35 | 0.40 | ----- | z | |||||||||||
1929 | 0.50 | 0.30 | 0.50 | ----- | z | 0.04 | 0.02 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | ----- | z | |||||||||||
1930 | 0.30 | 0.20 | 0.40 | 0.30 | 0.24 | 0.00 | 0.01 | 0.15 | 0.00 | 0.02 | 0.40 | 0.00 | 0.40 | |||||||||||||
1931 | 0.12 | 0.05 | 0.25 | 0.75 | 0.02 | 0.06 | 0.01 | 2.40 | 0.00 | 0.38 | 0.42 | 0.45 | 2.40 | |||||||||||||
1932 | 0.55 | 0.41 | 0.25 | 0.25 | 0.30 | 0.25 | 0.00 | 0.00 | 0.40 | 0.00 | 0.05 | 0.25 | 0.55 | |||||||||||||
1933 | 0.60 | 0.25 | 0.01 | 0.12 | 0.10 | 0.11 | 0.05 | 0.00 | 0.00 | 0.00 | 0.20 | 0.13 | 0.60 | |||||||||||||
1934 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.01 | 0.11 | 0.00 | 0.00 | 0.70 | 0.02 | 0.25 | 0.70 | |||||||||||||
1935 | 0.18 | 0.12 | 0.05 | 0.20 | 0.20 | 0.00 | 0.02 | 0.02 | 0.00 | 0.04 | 0.00 | 0.25 | 0.25 | |||||||||||||
1936 | 0.25 | 0.20 | 0.30 | 0.00 | 0.00 | 0.00 | 0.06 | 0.01 | 0.01 | 0.08 | 0.00 | 0.50 | 0.50 | |||||||||||||
1937 | 0.25 | 0.20 | 1.00 | 0.50 | 0.01 | 0.00 | 0.00 | 0.02 | 0.02 | 0.00 | 0.01 | 0.10 | 1.00 | |||||||||||||
1938 | 0.15 | 0.11 | 0.53 | 0.25 | 0.20 | 0.33 | ----- | z | 0.47 | 0.00 | 0.00 | 0.04 | 0.23 | ----- | z | |||||||||||
1939 | 0.20 | 0.20 | 0.53 | x | 0.50 | 0.24 | 0.00 | 0.38 | 1.40 | 0.42 | 0.37 | 0.00 | 0.00 | 1.40 | x | |||||||||||
1940 | 0.10 | 0.70 | a | 0.04 | 0.26 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 1.13 | 0.45 | 0.80 | 1.13 | a | |||||||||||
1941 | 0.25 | 0.30 | 0.88 | a | 0.93 | 0.10 | 0.12 | 0.30 | 0.50 | 0.00 | 0.95 | 0.03 | 0.14 | y | ----- | z | ||||||||||
1942 | 0.60 | 0.25 | 0.61 | 0.23 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.25 | 0.03 | 0.02 | 0.61 | |||||||||||||
1943 | 2.10 | a | 0.53 | 0.28 | 0.96 | 0.13 | 0.30 | 0.02 | 0.00 | 0.37 | a | 0.30 | 0.35 | 0.25 | 2.10 | b | ||||||||||
1944 | 0.27 | 0.75 | 0.14 | 0.06 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 1.65 | 0.50 | 1.65 | |||||||||||||
1945 | 0.00 | 0.36 | 0.25 | 0.25 | 0.14 | 0.30 | 0.05 | 0.48 | 0.02 | 0.40 | 0.25 | 0.07 | 0.48 | |||||||||||||
1946 | 0.20 | 0.40 | 0.24 | 0.37 | 0.15 | 0.00 | 0.73 | 0.38 | 0.00 | 0.48 | a | 1.01 | a | 0.29 | 1.01 | b | ||||||||||
1947 | 0.04 | 0.05 | 0.00 | 0.25 | 0.13 | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.17 | ----- | z | |||||||||||
1948 | 0.00 | 0.16 | 0.04 | 0.03 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | a | 0.08 | 0.00 | 0.15 | 1.00 | a | |||||||||||
1949 | 0.09 | 0.00 | 0.05 | 0.27 | 0.53 | 0.32 | 0.17 | 0.11 | 0.00 | 0.20 | 0.18 | 0.07 | 0.53 | |||||||||||||
1950 | 0.07 | 0.00 | 0.13 | 0.34 | 0.00 | 0.27 | 1.20 | q | 0.00 | d | 0.50 | 0.12 | 0.04 | 0.02 | 1.20 | u | ||||||||||
1951 | 0.29 | 0.14 | 0.21 | 0.20 | 0.00 | ----- | z | 0.18 | 0.01 | 0.03 | 0.50 | 0.16 | 0.17 | ----- | z | |||||||||||
1952 | 0.52 | 0.00 | 0.62 | 0.91 | 0.00 | 0.20 | 1.03 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | |||||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | h | 0.12 | 0.23 | 0.00 | 0.26 | 0.20 | 0.00 | ----- | z | ||||||
1954 | 0.70 | 0.65 | 0.36 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | t | 1.25 | 0.00 | 0.05 | b | ----- | 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 | 0.04 | 0.00 | ----- | z | ||
1959 | 0.08 | 0.34 | 0.00 | 0.08 | 0.15 | 0.00 | 0.30 | 0.00 | 0.69 | 0.00 | 0.00 | 0.22 | 0.69 | |||||||||||||
1960 | 0.07 | 0.33 | 0.00 | 0.18 | 0.14 | 0.00 | 0.41 | 0.00 | 0.22 | 0.53 | 2.01 | 0.21 | 2.01 | |||||||||||||
1961 | 0.68 | 0.06 | 0.28 | 0.28 | 0.00 | 0.35 | 0.07 | 0.13 | 0.58 | 0.05 | 0.12 | 0.36 | a | 0.68 | a | |||||||||||
1962 | 0.16 | 1.01 | 0.14 | 0.00 | 0.70 | 0.27 | 0.02 | 0.00 | 1.10 | 0.00 | 0.04 | 0.02 | 1.10 | |||||||||||||
1963 | 0.02 | 0.00 | 0.16 | 0.32 | 0.15 | 0.37 | 0.00 | 0.22 | 0.40 | 0.37 | 0.37 | 0.07 | 0.40 | |||||||||||||
1964 | ----- | z | 0.00 | x | 0.00 | ----- | z | 0.27 | 0.00 | 0.00 | 1.05 | 0.01 | m | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1965 | ----- | z | 0.50 | 0.30 | ----- | z | 0.00 | i | 0.43 | 0.70 | 0.69 | 0.02 | 0.00 | 0.71 | 0.41 | ----- | z | |||||||||
1966 | 0.30 | 0.30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.30 | 1.44 | 0.00 | 0.08 | 0.80 | 1.44 | |||||||||||||
1967 | 0.85 | 0.05 | 0.20 | 0.50 | 0.06 | 0.37 | 0.65 | 0.26 | 1.51 | 0.00 | 0.80 | 0.04 | 1.51 | |||||||||||||
1968 | 0.03 | 2.40 | 0.10 | 0.12 | 0.00 | 0.60 | 0.24 | 0.30 | 0.00 | 0.48 | 0.03 | 0.03 | 2.40 | |||||||||||||
1969 | 0.70 | 0.47 | 0.10 | 0.15 | 0.16 | 0.43 | 0.16 | 0.11 | 0.10 | 0.00 | 0.55 | 0.00 | 0.70 | |||||||||||||
1970 | 0.00 | 0.55 | 0.12 | 0.04 | 0.00 | 0.14 | 0.24 | 0.35 | 0.45 | 0.00 | 0.21 | 0.04 | 0.55 | |||||||||||||
1971 | 0.02 | 0.03 | 0.03 | 0.04 | 0.96 | 0.00 | 0.14 | 0.06 | 0.00 | 0.04 | 0.05 | 0.05 | 0.96 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | j | ----- | z | 0.24 | 0.00 | 0.00 | 2.25 | 0.05 | 0.00 | ----- | z | ||||||||||
1973 | 1.40 | 0.50 | 0.10 | 0.00 | ----- | z | ----- | z | 0.00 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.16 | 0.00 | 0.66 | 0.33 | 0.23 | ----- | z | |||||
1975 | 0.00 | 0.00 | 0.35 | 0.16 | 0.05 | 0.10 | 0.17 | 0.59 | 0.60 | 1.14 | 0.00 | 0.01 | 1.14 | |||||||||||||
1976 | 0.01 | 1.96 | 0.75 | 0.51 | 0.44 | 0.07 | 0.77 | 0.01 | 1.13 | 1.75 | 0.08 | 0.00 | 1.96 | |||||||||||||
1977 | 0.25 | 0.00 | 0.19 | 0.01 | 1.52 | 0.39 | 0.12 | 1.43 | 0.01 | 0.00 | 0.21 | 0.30 | 1.52 | |||||||||||||
1978 | 0.80 | 1.41 | 0.86 | 0.75 | 0.00 | 0.00 | 0.03 | 0.66 | 0.76 | 0.65 | 0.04 | 0.69 | 1.41 | |||||||||||||
1979 | 0.10 | 0.20 | 0.36 | 0.00 | 0.00 | 0.00 | 0.75 | 0.38 | 0.74 | 0.00 | 0.00 | 0.07 | 0.75 | |||||||||||||
1980 | 0.45 | 0.72 | 0.38 | 0.21 | 0.53 | 0.00 | 0.41 | 0.09 | 0.46 | 0.00 | 0.15 | 0.00 | 0.72 | |||||||||||||
1981 | 0.56 | 0.14 | 0.29 | 0.09 | 1.22 | ----- | z | 0.13 | 0.20 | 0.31 | 0.30 | 0.41 | 0.00 | ----- | z | |||||||||||
1982 | 0.17 | a | 0.02 | 0.42 | 0.27 | 0.06 | 0.49 | 0.74 | 0.46 | 0.12 | 0.17 | 0.52 | 0.62 | a | 0.74 | b | ||||||||||
1983 | 0.44 | 0.13 | 1.20 | b | 0.45 | 0.05 | 0.00 | ----- | z | 0.00 | y | ----- | z | 0.04 | e | ----- | z | 0.18 | ----- | z | ||||||
1984 | 0.04 | 0.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.00 | a | 0.00 | 0.55 | a | 1.11 | 0.06 | b | 0.17 | b | ----- | z | ||||
1986 | 0.65 | 0.65 | a | 0.15 | a | 0.45 | a | 0.00 | 0.00 | 0.02 | 0.50 | 0.00 | 0.00 | 0.48 | ----- | z | ----- | z | ||||||||
1987 | 0.45 | 0.01 | d | 0.90 | c | 0.20 | 1.80 | b | 0.05 | 0.11 | 0.30 | a | 0.03 | 0.50 | 0.72 | 0.13 | b | 1.80 | l | |||||||
1988 | 0.52 | 0.27 | 0.13 | 1.05 | 0.15 | 0.53 | 0.03 | 0.57 | 0.51 | 0.00 | 0.05 | 0.25 | 1.05 | |||||||||||||
1989 | ----- | z | 0.38 | c | 0.00 | a | 0.00 | 0.76 | 0.94 | 0.01 | 0.80 | 0.36 | 0.00 | 0.00 | 0.00 | ----- | z | |||||||||
1990 | 0.93 | 0.00 | c | 0.21 | b | 0.10 | 1.13 | 0.04 | 0.81 | 0.12 | 0.86 | 0.00 | 0.00 | 0.05 | 1.13 | e | ||||||||||
1991 | 0.16 | 0.38 | 0.41 | 0.01 | a | 0.30 | 0.00 | 0.42 | 0.19 | 0.31 | 0.20 | 0.00 | 0.35 | 0.42 | a | |||||||||||
1992 | 0.19 | 0.70 | a | 0.28 | u | 0.14 | 0.14 | 0.08 | 0.22 | 0.29 | ----- | z | ----- | z | ----- | z | 0.30 | c | ----- | z | ||||||
1993 | 0.60 | 0.48 | x | 0.46 | 0.00 | 0.00 | 1.36 | 0.00 | 0.00 | 0.09 | 0.56 | ----- | z | ----- | z | ----- | z | |||||||||
1994 | 0.00 | 1.18 | x | 0.41 | 0.78 | 0.26 | 0.00 | 0.10 | 0.00 | ----- | z | 0.00 | 0.62 | 0.34 | ----- | z | ||||||||||
1995 | 0.54 | p | 0.17 | a | 1.20 | a | 0.37 | 0.73 | 0.59 | 0.00 | 0.13 | 0.05 | 0.00 | 0.00 | 0.28 | 1.20 | r | |||||||||
1996 | 0.02 | 0.28 | 0.36 | 0.04 | 0.26 | ----- | z | 0.46 | 0.05 | 0.00 | ----- | z | 0.16 | 0.60 | ----- | z | ||||||||||
1997 | ----- | z | 0.25 | 0.01 | 0.03 | ----- | z | 0.90 | 0.20 | 0.18 | 0.60 | 0.08 | 0.51 | 0.35 | ----- | z | ||||||||||
1998 | 0.15 | 0.76 | 0.80 | ----- | z | 0.56 | 0.41 | ----- | z | 0.24 | 1.10 | 0.50 | 0.12 | 0.00 | ----- | z | ||||||||||
1999 | 1.02 | 0.00 | 0.18 | 0.78 | 0.04 | 0.40 | 0.60 | ----- | z | 0.10 | 0.00 | 0.00 | 0.00 | ----- | z | |||||||||||
2000 | 0.04 | 1.67 | 0.40 | 0.00 | 0.12 | 0.00 | 0.00 | 1.25 | a | 0.00 | v | 0.16 | 0.10 | 0.00 | 1.67 | w | ||||||||||
2001 | 0.60 | 0.70 | 0.46 | 0.80 | 0.05 | 0.00 | m | 1.50 | 0.66 | 0.00 | 0.00 | 0.50 | 0.25 | 1.50 | m | |||||||||||
2002 | 0.01 | 0.02 | 0.00 | 0.00 | 0.68 | 0.05 | i | 0.10 | 0.00 | l | 0.50 | 0.02 | 0.26 | 0.11 | a | 0.68 | v | |||||||||
2003 | 0.01 | d | 0.25 | d | 0.60 | a | 0.63 | a | 0.17 | 0.00 | ----- | z | 0.38 | 0.05 | 0.19 | 0.10 | y | 0.50 | a | ----- | z | |||||
2004 | 0.00 | 0.53 | 0.35 | 0.31 | 0.01 | 0.27 | 0.00 | 0.73 | 0.00 | 0.42 | 0.33 | 0.68 | 0.73 | |||||||||||||
2005 | ----- | z | 0.76 | a | 0.14 | 0.15 | v | 0.00 | n | 0.00 | 0.39 | 0.12 | f | 0.00 | d | 0.07 | 0.09 | 0.40 | ----- | z | ||||||
2006 | 0.80 | a | 0.06 | 1.20 | c | 0.51 | b | 0.09 | e | 0.32 | 0.30 | 0.00 | 0.00 | c | 0.07 | g | 0.05 | f | ----- | z | ----- | z | ||||
2007 | 0.31 | b | 0.50 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.01 | ----- | z | 0.00 | y | ----- | z | |
2008 | 0.96 | r | 0.14 | p | 0.00 | p | 0.00 | r | 0.00 | p | 0.00 | 0.14 | a | 0.00 | q | 0.07 | l | 0.03 | n | 0.27 | t | 0.00 | n | ----- | z | |
2009 | 0.00 | m | 0.20 | h | 0.00 | n | 0.09 | g | 0.00 | p | 0.54 | k | 0.70 | b | 0.00 | 0.19 | j | 0.00 | 0.00 | 0.25 | m | ----- | z | |||
2010 | 0.65 | o | 0.22 | h | 0.15 | l | 0.22 | h | 0.05 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.33 | 0.37 | 0.33 | 0.28 | 0.26 | 0.24 | 0.26 | 0.29 | 0.31 | 0.29 | 0.24 | 0.23 | 1.03 | |||||||||||||
S.D. | 0.37 | 0.42 | 0.31 | 0.29 | 0.37 | 0.39 | 0.31 | 0.40 | 0.43 | 0.41 | 0.34 | 0.24 | 0.53 | |||||||||||||
SKEW | 1.87 | 2.35 | 1.31 | 1.09 | 2.08 | 2.98 | 1.49 | 2.46 | 1.55 | 2.16 | 2.68 | 1.25 | 0.95 | |||||||||||||
MAX | 2.10 | 2.40 | 1.31 | 1.05 | 1.80 | 2.43 | 1.50 | 2.40 | 1.72 | 2.25 | 2.01 | 1.00 | 2.40 | |||||||||||||
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 | 0.25 | |||||||||||||
YRS | 87 | 90 | 90 | 84 | 84 | 82 | 85 | 89 | 88 | 89 | 88 | 85 | 50 |