YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1915 | ----- | z | 0.39 | o | 0.31 | 0.79 | 1.08 | 0.19 | 0.38 | 0.05 | 0.16 | 0.64 | 1.20 | ----- | z | ----- | z | |||||||||
1916 | ----- | z | 1.41 | 0.48 | 0.22 | 0.57 | 0.62 | 0.39 | 0.33 | 0.09 | 0.12 | 1.02 | ----- | z | ----- | z | ||||||||||
1917 | 0.45 | 0.28 | 0.19 | 0.36 | 0.27 | 0.26 | 0.04 | 0.00 | 0.19 | 0.00 | 0.30 | 0.62 | 0.62 | |||||||||||||
1918 | 0.30 | 0.50 | 0.33 | 0.09 | 0.08 | 0.52 | 0.87 | 0.23 | 0.00 | 0.58 | 1.12 | ----- | z | ----- | z | |||||||||||
1919 | 0.29 | 0.34 | 0.12 | 0.06 | 0.40 | 0.02 | 0.51 | 0.52 | 0.91 | 0.36 | 0.30 | u | 0.51 | 0.91 | u | |||||||||||
1920 | 0.12 | 0.04 | 0.10 | 0.38 | 0.11 | 0.31 | 0.44 | 0.83 | 0.32 | 0.16 | 0.60 | 0.24 | b | 0.83 | b | |||||||||||
1921 | 0.32 | 0.14 | 0.23 | 0.78 | 0.24 | 0.07 | 0.00 | 0.00 | 0.33 | 0.95 | 0.65 | 0.32 | 0.95 | |||||||||||||
1922 | 0.38 | 0.71 | 0.19 | 0.44 | 0.12 | 0.00 | 0.00 | 0.25 | 0.21 | 1.08 | 0.12 | 0.47 | 1.08 | |||||||||||||
1923 | 0.23 | 0.30 | 0.32 | 0.40 | 0.30 | 0.92 | 0.52 | 0.28 | 0.25 | 0.69 | 0.19 | 0.39 | 0.92 | |||||||||||||
1924 | 0.44 | 0.34 | 0.16 | 0.06 | 0.06 | 0.32 | 0.20 | 0.50 | 0.60 | 0.47 | 0.64 | 0.33 | 0.64 | |||||||||||||
1925 | 0.25 | 0.47 | 0.18 | 0.47 | 0.42 | 0.64 | 0.06 | 0.07 | 0.25 | 0.27 | 0.55 | 0.25 | 0.64 | |||||||||||||
1926 | 0.26 | 0.26 | 0.15 | ----- | z | ----- | z | 0.08 | ----- | z | 1.40 | 0.67 | 0.55 | 0.50 | 0.90 | ----- | z | |||||||||
1927 | 0.41 | 0.41 | 0.32 | 0.05 | y | 0.41 | 0.35 | 0.06 | 0.27 | 1.09 | 0.36 | 0.54 | 0.09 | 1.09 | y | |||||||||||
1928 | 0.43 | w | 0.12 | x | 0.33 | 0.25 | ----- | z | 0.47 | r | 0.70 | ----- | z | ----- | z | 0.12 | y | 0.78 | u | ----- | z | ----- | z | |||
1929 | 0.09 | y | 0.21 | y | 0.80 | x | 0.29 | v | 0.21 | w | 0.82 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 0.36 | ----- | z | ||||
1930 | 0.23 | 0.29 | 0.36 | 0.16 | v | 0.64 | v | 0.75 | v | 0.10 | 0.20 | 0.67 | u | 0.11 | 0.65 | u | 0.28 | w | ----- | z | ||||||
1931 | 0.39 | h | 0.24 | 0.57 | 0.18 | 0.47 | 0.49 | 0.00 | 0.00 | 0.56 | a | 0.47 | 0.35 | 0.59 | 0.59 | i | ||||||||||
1932 | 0.81 | 0.22 | 0.42 | 0.49 | 0.21 | 0.09 | 0.11 | 0.18 | 0.06 | 0.18 | 0.53 | 0.56 | 0.81 | |||||||||||||
1933 | 0.51 | 0.15 | 0.65 | 0.14 | 0.80 | 0.20 | 0.07 | 0.05 | 0.54 | 0.39 | 0.36 | 0.59 | 0.80 | |||||||||||||
1934 | 0.83 | 0.20 | 0.31 | 0.29 | 0.13 | 0.26 | 0.08 | 0.45 | 0.62 | 0.64 | 0.49 | 0.27 | 0.83 | |||||||||||||
1935 | 0.34 | 0.43 | 0.07 | 0.46 | 0.24 | 0.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
1936 | 0.38 | 0.44 | 0.03 | 0.89 | 0.28 | 1.45 | 0.05 | 0.06 | 0.23 | 0.12 | 0.00 | 0.20 | 1.45 | |||||||||||||
1937 | 0.21 | 0.41 | 0.39 | 1.12 | ----- | z | 1.31 | 0.22 | 0.05 | a | 0.91 | 0.37 | 0.50 | 0.61 | ----- | z | ||||||||||
1938 | 0.24 | 0.42 | 0.46 | 0.05 | 0.00 | 0.48 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||||
1939 | 0.39 | 0.24 | 0.42 | 0.95 | 0.10 | 0.34 | 0.03 | 0.02 | 0.06 | 0.38 | 0.10 | 0.57 | 0.95 | |||||||||||||
1940 | 0.37 | 1.01 | 0.54 | 0.69 | 0.19 | 0.11 | 0.23 | 0.00 | 0.65 | 1.00 | f | 0.40 | 0.45 | 1.01 | f | |||||||||||
1941 | 0.49 | 0.48 | 0.36 | 0.36 | 0.78 | 1.00 | 0.26 | 1.19 | 0.62 | 0.14 | 0.60 | 0.64 | 1.19 | |||||||||||||
1942 | 0.58 | 0.63 | 0.05 | 0.57 | a | 1.24 | 0.88 | 0.50 | 0.29 | 0.00 | 0.37 | 0.63 | d | 0.50 | 1.24 | e | ||||||||||
1943 | 0.36 | a | 0.20 | 0.21 | c | 0.34 | 0.36 | a | 0.81 | 0.00 | 0.65 | a | 0.01 | 1.55 | p | 0.24 | 0.36 | 1.55 | v | |||||||
1944 | 0.70 | d | 0.42 | b | 0.12 | c | 1.25 | b | 0.24 | 0.47 | 0.00 | 0.38 | a | 0.48 | c | 0.31 | 0.76 | f | 0.38 | c | 1.25 | x | ||||
1945 | 1.38 | 0.43 | 0.29 | 0.19 | j | 0.54 | 0.56 | e | 0.00 | c | 0.12 | b | 0.48 | 0.76 | 0.59 | e | 0.59 | b | ----- | z | ||||||
1946 | 0.48 | 0.45 | 0.18 | c | 0.10 | h | 0.32 | b | 0.56 | j | 0.05 | b | 0.05 | a | 0.07 | k | 0.49 | i | 0.67 | c | 0.22 | d | ----- | z | ||
1947 | 0.20 | 0.27 | 0.30 | 0.36 | 0.42 | b | 0.41 | b | 0.85 | d | ----- | z | ----- | z | 0.50 | a | 0.20 | 0.55 | ----- | z | ||||||
1948 | 0.50 | 0.40 | b | 0.07 | f | 0.98 | c | 0.81 | j | 1.32 | 0.62 | 1.57 | 0.87 | 0.30 | 0.38 | d | 0.42 | 1.57 | y | |||||||
1949 | 0.33 | 0.34 | 0.43 | 0.07 | 0.17 | 0.16 | 0.06 | 0.03 | 0.17 | 0.24 | 0.49 | 0.39 | 0.49 | |||||||||||||
1950 | 0.16 | 0.40 | 0.61 | 0.51 | 1.19 | 1.37 | 0.45 | 0.15 | 0.12 | 0.44 | 0.45 | 0.35 | 1.37 | |||||||||||||
1951 | 0.62 | d | 0.25 | 0.32 | c | 0.39 | 0.09 | 0.49 | 0.37 | 1.04 | 0.59 | 0.85 | 0.40 | 0.65 | c | 1.04 | j | |||||||||
1952 | 0.44 | f | 0.37 | 0.24 | 0.50 | 0.28 | 0.50 | 0.43 | 0.08 | 0.30 | 0.03 | 0.18 | 1.07 | c | 1.07 | i | ||||||||||
1953 | 0.30 | 0.27 | 0.40 | 0.49 | 0.49 | 0.51 | 0.02 | 0.41 | 0.05 | 0.26 | 0.26 | a | 0.32 | 0.51 | a | |||||||||||
1954 | 0.29 | 0.26 | 0.29 | 0.19 | 0.81 | 0.44 | 0.18 | 0.23 | 0.32 | 0.03 | 0.56 | 0.33 | a | 0.81 | a | |||||||||||
1955 | 0.50 | 0.07 | 0.42 | 0.34 | 0.28 | 0.53 | 0.61 | 0.00 | 0.24 | 0.54 | 0.35 | 0.37 | 0.61 | |||||||||||||
1956 | 0.43 | 0.28 | 0.23 | 0.50 | 0.25 | 0.82 | 0.11 | 0.81 | 0.06 | 0.45 | 0.29 | 0.30 | 0.82 | |||||||||||||
1957 | 0.47 | 0.44 | j | 0.68 | 0.28 | 1.52 | 0.17 | 0.27 | 0.27 | 0.14 | 0.56 | 0.43 | 0.22 | 1.52 | j | |||||||||||
1958 | 0.45 | 0.56 | 0.25 | 0.38 | 0.22 | 0.67 | 2.20 | 0.00 | 0.32 | 0.29 | 0.64 | 0.30 | 2.20 | |||||||||||||
1959 | 0.72 | 0.31 | 0.40 | 0.13 | 0.56 | 0.29 | 0.03 | 0.04 | 0.96 | 0.30 | 0.36 | 0.51 | 0.96 | |||||||||||||
1960 | 0.29 | 0.41 | 0.26 | 0.28 | 0.52 | 0.10 | 0.00 | 0.17 | 0.70 | 0.09 | 0.56 | 0.64 | 0.70 | |||||||||||||
1961 | 0.19 | 0.59 | 0.42 | 1.16 | 0.35 | 0.35 | 0.19 | 0.46 | 0.05 | 0.28 | 0.37 | 0.37 | 1.16 | |||||||||||||
1962 | 0.18 | 0.19 | 0.24 | 0.64 | 0.34 | 0.43 | 0.05 | 0.38 | 0.73 | 0.48 | 0.45 | 0.56 | 0.73 | |||||||||||||
1963 | 0.09 | 0.31 | 0.34 | 0.56 | 0.58 | 0.23 | 0.24 | 0.00 | 0.29 | 0.13 | 0.80 | 0.41 | 0.80 | |||||||||||||
1964 | 0.30 | 0.07 | 0.32 | 0.14 | 0.08 | 0.47 | a | 0.02 | 0.27 | 0.15 | 0.17 | 0.43 | 0.60 | b | 0.60 | c | ||||||||||
1965 | 0.40 | 0.06 | 0.15 | 0.83 | 0.44 | 0.29 | 0.58 | 0.44 | 0.10 | 0.08 | 0.42 | 0.71 | 0.83 | |||||||||||||
1966 | 0.34 | 0.12 | 0.23 | 0.01 | 0.13 | 0.32 | 0.39 | 0.15 | 0.59 | 0.19 | 0.70 | 0.65 | 0.70 | |||||||||||||
1967 | 0.51 | 0.16 | 0.21 | 0.41 | 0.32 | 0.44 | 0.10 | 0.21 | 0.07 | 0.48 | 0.55 | 0.46 | 0.55 | |||||||||||||
1968 | 0.75 | 0.29 | 0.17 | 0.26 | 0.30 | 0.21 | 0.00 | 0.62 | 0.10 | 0.70 | a | 0.87 | 0.86 | 0.87 | a | |||||||||||
1969 | 0.50 | 0.56 | 0.43 | 0.74 | 0.36 | a | 0.30 | 0.11 | 0.00 | 0.27 | 0.13 | 0.19 | 0.56 | a | 0.74 | b | ||||||||||
1970 | 0.52 | 0.66 | 0.34 | a | 0.25 | 0.14 | 0.34 | 0.07 | 0.00 | 0.23 | 0.61 | 0.67 | c | 0.38 | 0.67 | d | ||||||||||
1971 | 0.50 | 0.52 | 0.47 | 0.39 | 0.39 | 0.34 | 0.29 | 0.06 | 0.66 | 0.75 | 0.44 | 0.88 | 0.88 | |||||||||||||
1972 | 0.35 | 0.16 | d | 0.51 | 0.37 | 1.93 | 0.52 | 0.12 | 0.10 | 0.28 | 0.55 | 0.56 | 0.85 | a | 1.93 | e | ||||||||||
1973 | 0.36 | 0.48 | a | 0.32 | a | 0.05 | 0.19 | 0.14 | 0.05 | 0.11 | 0.78 | 0.74 | b | 1.25 | c | 0.65 | e | 1.25 | l | |||||||
1974 | 0.34 | a | 1.00 | b | 0.35 | 0.51 | 0.20 | 0.00 | 0.89 | 0.48 | 0.16 | 0.08 | 0.70 | b | 0.85 | 1.00 | e | |||||||||
1975 | 0.53 | g | 0.54 | d | 0.53 | c | 0.30 | 1.39 | a | 0.20 | 0.03 | 0.37 | 0.08 | 0.72 | 0.16 | 0.72 | 1.39 | o | ||||||||
1976 | 0.25 | 0.51 | 0.52 | 0.27 | 0.27 | 0.23 | 0.13 | 0.82 | 0.19 | 0.26 | a | 0.00 | 0.25 | 0.82 | a | |||||||||||
1977 | 0.18 | 0.32 | 0.38 | 0.00 | 0.37 | 0.34 | 0.10 | 0.00 | c | 0.45 | 0.40 | 0.48 | a | 0.74 | 0.74 | d | ||||||||||
1978 | 0.50 | 0.29 | 0.60 | 1.05 | 0.27 | 0.18 | 0.42 | 0.75 | 0.55 | ----- | z | 0.06 | 0.54 | ----- | z | |||||||||||
1979 | 0.42 | 0.54 | b | 0.21 | 0.19 | ----- | z | 0.56 | 0.26 | 0.30 | 0.30 | 0.45 | 0.66 | 0.70 | ----- | z | ||||||||||
1980 | 0.68 | 0.53 | 0.43 | 0.62 | 0.77 | 0.39 | 0.12 | 0.26 | 1.16 | 0.39 | a | 0.59 | 0.59 | a | 1.16 | b | ||||||||||
1981 | 0.22 | 1.13 | 0.39 | 0.15 | 0.62 | 0.24 | 0.39 | 0.11 | 0.17 | 0.49 | 0.53 | b | 0.70 | 1.13 | b | |||||||||||
1982 | 0.44 | 0.38 | 0.76 | 0.58 | 0.54 | b | 0.35 | 0.31 | a | 0.80 | 0.29 | 0.37 | a | 0.48 | 0.61 | g | 0.80 | k | ||||||||
1983 | 0.27 | a | 0.42 | a | 1.39 | b | 0.66 | 0.34 | a | 0.34 | a | 0.65 | 0.40 | 0.24 | 0.17 | 1.03 | 0.42 | a | 1.39 | g | ||||||
1984 | 0.31 | h | 0.46 | a | 0.54 | c | 0.51 | 0.63 | a | 1.41 | a | 0.21 | 0.10 | 0.16 | 0.39 | 0.79 | 0.14 | g | 1.41 | u | ||||||
1985 | 0.53 | a | 0.46 | a | 0.06 | 0.13 | 0.45 | 0.16 | 0.00 | 0.09 | 0.30 | 0.49 | 0.37 | j | 0.31 | a | 0.53 | m | ||||||||
1986 | 0.79 | e | 0.55 | 0.65 | 0.50 | 0.19 | c | 0.10 | 0.15 | 0.01 | 0.65 | 0.38 | 0.38 | 0.33 | c | 0.79 | k | |||||||||
1987 | 0.70 | 0.39 | 0.90 | a | 0.13 | 0.51 | c | 0.17 | 0.77 | 0.90 | 0.04 | a | 0.10 | 0.21 | f | 0.50 | c | 0.90 | n | |||||||
1988 | 0.23 | 0.04 | 0.38 | 0.74 | b | 0.55 | 0.20 | 0.00 | 0.00 | 0.23 | a | 0.07 | 0.99 | 0.21 | 0.99 | c | ||||||||||
1989 | 0.11 | 0.32 | 0.35 | 0.39 | 0.50 | 0.28 | 0.07 | 0.73 | 0.01 | 0.40 | 0.25 | f | 0.10 | b | 0.73 | h | ||||||||||
1990 | 0.44 | a | 0.30 | 0.23 | 0.38 | 0.55 | d | 0.80 | b | ----- | z | 1.45 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1991 | 0.34 | a | 0.41 | g | 0.80 | d | 0.13 | b | 0.61 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.41 | 0.39 | 0.36 | 0.43 | 0.44 | 0.45 | 0.26 | 0.33 | 0.36 | 0.39 | 0.51 | 0.49 | 0.88 | |||||||||||||
S.D. | 0.21 | 0.24 | 0.21 | 0.29 | 0.36 | 0.34 | 0.33 | 0.37 | 0.29 | 0.24 | 0.27 | 0.21 | 0.31 | |||||||||||||
SKEW | 1.65 | 1.72 | 1.74 | 0.84 | 1.95 | 1.33 | 3.05 | 1.55 | 0.87 | 0.56 | 0.61 | 0.41 | 2.14 | |||||||||||||
MAX | 1.38 | 1.41 | 1.39 | 1.25 | 1.93 | 1.45 | 2.20 | 1.57 | 1.16 | 1.08 | 1.25 | 1.07 | 2.20 | |||||||||||||
MIN | 0.09 | 0.04 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.49 | |||||||||||||
YRS | 69 | 72 | 75 | 71 | 70 | 73 | 73 | 72 | 68 | 67 | 65 | 66 | 38 |