YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1892 | 0.08 | 0.36 | b | 0.48 | a | 0.15 | v | 1.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | d | 0.20 | d | 2.28 | f | ||
1893 | 0.00 | c | 0.11 | b | 0.29 | f | 0.32 | d | 0.33 | e | 0.54 | 0.34 | 1.07 | t | 0.39 | 0.28 | 0.06 | b | 0.10 | 2.47 | b | |||||
1894 | ----- | z | 0.10 | d | 0.84 | 1.51 | 0.42 | 0.64 | 1.41 | 1.26 | 1.60 | 0.09 | 0.05 | b | 0.23 | 8.15 | a | |||||||||
1895 | ----- | z | 0.14 | c | 0.43 | b | 0.87 | 2.09 | 2.12 | 2.71 | 1.17 | 0.04 | y | 0.74 | 0.32 | 0.33 | b | 10.92 | b | |||||||
1896 | 0.44 | a | 0.17 | c | 0.59 | h | 3.53 | a | 2.37 | 2.72 | 1.66 | 0.89 | 1.16 | 0.18 | a | 0.09 | 0.00 | 13.21 | a | |||||||
1897 | 0.39 | 0.35 | 0.48 | a | 0.55 | 1.85 | 0.72 | 1.29 | 1.11 | t | 0.32 | a | 0.55 | 0.33 | w | 0.77 | 7.27 | b | ||||||||
1898 | 0.05 | 0.01 | 0.40 | 1.26 | r | 1.88 | 0.90 | 0.65 | 1.16 | 0.00 | 0.48 | 0.61 | 0.23 | 6.37 | a | |||||||||||
1899 | 0.95 | e | 0.50 | w | 1.11 | 1.75 | 0.37 | 1.11 | 2.01 | 1.44 | ----- | z | 1.13 | 0.07 | 0.61 | 10.55 | b | |||||||||
1900 | 0.01 | 0.82 | 0.58 | 2.91 | 0.24 | 0.35 | 1.25 | 0.61 | 1.11 | 0.61 | 0.06 | 0.03 | 8.58 | |||||||||||||
1901 | 0.04 | 0.41 | a | 0.05 | 0.28 | 3.00 | a | 1.73 | 0.32 | 1.11 | 0.09 | 1.28 | 0.00 | 0.21 | u | 8.31 | a | |||||||||
1902 | 0.00 | 0.26 | 0.41 | 0.80 | 0.26 | 0.60 | ----- | z | 0.40 | 1.58 | 0.74 | 0.22 | ----- | z | 5.27 | b | ||||||||||
1903 | 0.11 | 0.36 | 1.09 | 0.73 | 1.63 | 1.00 | 1.31 | 0.88 | w | 2.39 | 0.50 | 0.30 | 0.07 | 9.49 | a | |||||||||||
1904 | 0.25 | 0.11 | 0.36 | 0.84 | 1.74 | 2.01 | 1.33 | 0.93 | 1.35 | 0.54 | 0.04 | 0.08 | 9.58 | |||||||||||||
1905 | 0.39 | 0.42 | 0.64 | 1.21 | 1.79 | 0.36 | 1.79 | 0.83 | 1.64 | 0.53 | 0.22 | 0.03 | 9.85 | |||||||||||||
1906 | 0.58 | 0.05 | d | 1.01 | 1.75 | 0.91 | 1.71 | 1.75 | 0.59 | 2.09 | 1.33 | c | 0.41 | 0.39 | 12.57 | |||||||||||
1907 | 0.29 | 0.15 | 0.28 | 0.78 | 1.09 | 0.90 | 3.68 | 1.28 | 0.62 | 0.16 | 0.00 | 0.23 | 9.46 | |||||||||||||
1908 | 0.24 | 0.08 | 0.02 | 0.34 | 5.57 | 0.84 | 2.68 | 1.93 | 0.65 | 0.45 | 0.38 | 0.35 | 13.53 | |||||||||||||
1909 | 0.34 | 0.27 | 1.11 | 0.76 | 1.66 | 0.67 | 1.00 | 1.87 | 0.97 | 0.50 | 0.29 | w | 0.25 | 9.40 | a | |||||||||||
1910 | 0.19 | 0.04 | 0.33 | 0.95 | 1.90 | 1.52 | 1.97 | q | 0.27 | 1.11 | 1.79 | 0.06 | 0.32 | 8.48 | a | |||||||||||
1911 | 0.88 | 0.15 | 0.20 | 1.02 | 0.30 | 1.26 | 2.31 | s | 0.83 | 0.64 | 1.36 | 0.39 | 0.57 | 7.60 | a | |||||||||||
1912 | 0.74 | 0.79 | 0.58 | 1.53 | 0.90 | 0.75 | 2.37 | 1.52 | 2.64 | 1.38 | 0.78 | ----- | z | 13.98 | a | |||||||||||
1913 | 0.55 | 1.20 | 0.19 | ----- | z | 0.19 | 1.70 | 2.40 | 1.36 | 1.44 | 1.64 | 0.76 | 1.90 | 13.33 | a | |||||||||||
1914 | 0.32 | y | 0.43 | 0.37 | 1.00 | 1.81 | 0.20 | 1.27 | 1.46 | s | 0.29 | 0.88 | 0.03 | 0.38 | 6.66 | b | ||||||||||
1915 | 1.36 | 0.82 | 1.61 | a | 0.83 | 1.91 | 1.05 | 1.20 | 1.13 | a | 0.89 | 0.87 | 0.16 | 0.53 | 12.36 | |||||||||||
1916 | 1.09 | 0.72 | 1.10 | 0.30 | 0.90 | 0.04 | 2.36 | 1.30 | 0.34 | 0.95 | 0.53 | 0.66 | 10.29 | |||||||||||||
1917 | 0.31 | 1.15 | 0.93 | 1.37 | 2.61 | a | 0.20 | 0.82 | 0.73 | 0.51 | 0.66 | 0.46 | 0.21 | 9.96 | ||||||||||||
1918 | 0.44 | 0.68 | 0.85 | 1.27 | a | 0.55 | 1.24 | 3.05 | 1.17 | 1.33 | 0.80 | 0.84 | 0.62 | 12.84 | ||||||||||||
1919 | 0.00 | 0.22 | 0.80 | 0.89 | 0.21 | 0.40 | 1.73 | 0.58 | 1.31 | 0.63 | 1.09 | 1.24 | 9.10 | |||||||||||||
1920 | 0.77 | 0.28 | 0.48 | 4.45 | 1.66 | 0.68 | 1.14 | 2.52 | 0.84 | 1.13 | 0.05 | 1.00 | 15.00 | |||||||||||||
1921 | 1.08 | 0.48 | 0.41 | 2.40 | 1.21 | 1.42 | a | 2.55 | 0.40 | 0.10 | 0.13 | 0.56 | 1.12 | 11.86 | ||||||||||||
1922 | 0.27 | 0.64 | 0.96 | 1.95 | 1.49 | 0.39 | 0.53 | 1.79 | 0.43 | 0.46 | 1.18 | 0.32 | 10.41 | |||||||||||||
1923 | 0.65 | 0.57 | 0.78 | 0.55 | 0.75 | 2.40 | 2.45 | 1.09 | 1.94 | 1.73 | 0.04 | 0.47 | 13.42 | |||||||||||||
1924 | 0.38 | 0.86 | 0.45 | 0.35 | a | 2.33 | 0.16 | 0.71 | 0.09 | 1.42 | 2.20 | 0.19 | 0.58 | 9.72 | ||||||||||||
1925 | 0.07 | 0.13 | 0.48 | 1.59 | 0.99 | 2.29 | 2.23 | 2.44 | 1.05 | 1.83 | 0.33 | 0.94 | 14.37 | |||||||||||||
1926 | 0.35 | 0.55 | 0.31 | 2.13 | 2.20 | 1.43 | 4.55 | 0.30 | 0.43 | 0.16 | 0.25 | 0.27 | 12.93 | |||||||||||||
1927 | 0.28 | 0.08 | 0.68 | 1.30 | 0.68 | 1.09 | 1.78 | 1.36 | 1.07 | 1.94 | 0.39 | 0.25 | 10.90 | |||||||||||||
1928 | 0.33 | 0.84 | 0.44 | 0.58 | 1.88 | 2.03 | 2.98 | 0.61 | 0.17 | 0.90 | 0.34 | 0.11 | 11.21 | |||||||||||||
1929 | 0.15 | 0.34 | 2.18 | 1.99 | 1.99 | 0.92 | 1.41 | 2.33 | 2.00 | 1.12 | 0.50 | 0.14 | 15.07 | |||||||||||||
1930 | 0.48 | 0.35 | 0.77 | 0.84 | 1.83 | 0.38 | 1.00 | 2.95 | 0.88 | a | 1.32 | 0.58 | 0.54 | 11.92 | ||||||||||||
1931 | 0.07 | 0.48 | 1.01 | 0.71 | 0.76 | 0.68 | 1.90 | 1.47 | 0.55 | 0.60 | 0.60 | 0.41 | 9.24 | |||||||||||||
1932 | 0.38 | 0.76 | 1.54 | 1.89 | 1.80 | 1.63 | 1.20 | 0.25 | 0.47 | a | 0.35 | 0.35 | 0.35 | 10.97 | ||||||||||||
1933 | 0.12 | 0.12 | 0.44 | 0.95 | 1.03 | 0.50 | 0.65 | 0.60 | 0.54 | 0.00 | 0.29 | 0.56 | 5.80 | |||||||||||||
1934 | 0.08 | 0.60 | 0.39 | 1.23 | 0.70 | 0.86 | 2.69 | 1.46 | 1.25 | 0.02 | 0.23 | 0.36 | 9.87 | |||||||||||||
1935 | 0.31 | 0.15 | 0.79 | 1.88 | 3.59 | 0.13 | 1.77 | 1.22 | 0.96 | 0.46 | 0.29 | 0.11 | 11.66 | |||||||||||||
1936 | 0.27 | 0.38 | 0.62 | 1.32 | 0.46 | 1.93 | 1.07 | 2.11 | 0.19 | 0.55 | 0.26 | 0.54 | 9.70 | |||||||||||||
1937 | 0.19 | 0.39 | 1.29 | 2.47 | 1.98 | a | 2.07 | 2.84 | 1.35 | 0.71 | 1.06 | 0.87 | 1.30 | 16.52 | ||||||||||||
1938 | 0.56 | 0.29 | 0.67 | 1.91 | 2.20 | 1.67 | 1.59 | 2.18 | 1.07 | 0.97 | 0.65 | 0.48 | 14.24 | |||||||||||||
1939 | 0.64 | 0.30 | 0.71 | 1.22 | 1.33 | 0.32 | 0.43 | 0.42 | 1.54 | a | 0.63 | 0.01 | 0.24 | 7.79 | ||||||||||||
1940 | 0.60 | 0.28 | 0.64 | 0.81 | 0.97 | 1.21 | 2.33 | 0.42 | 2.55 | 0.82 | 0.55 | 0.04 | 11.22 | |||||||||||||
1941 | 0.30 | 0.15 | 0.59 | 3.14 | 0.47 | 2.45 | 1.41 | 2.85 | 0.35 | 1.03 | 0.37 | a | 0.47 | 13.58 | ||||||||||||
1942 | 0.46 | 0.43 | 0.14 | 2.28 | 1.63 | 1.33 | 0.74 | 0.27 | 0.83 | 1.59 | 0.72 | 0.10 | 10.52 | |||||||||||||
1943 | 0.18 | 0.10 | 0.35 | 1.21 | 1.17 | 0.96 | 1.82 | 1.00 | 0.02 | 0.29 | 0.53 | 0.07 | 7.70 | |||||||||||||
1944 | 0.57 | 0.55 | 0.91 | 1.44 | 0.80 | 1.42 | 4.47 | 0.50 | 0.26 | 0.56 | 0.34 | 0.54 | 12.36 | |||||||||||||
1945 | 0.61 | 0.40 | 1.05 | 1.27 | 0.72 | 4.29 | 1.38 | 3.13 | 0.70 | 0.42 | 0.22 | 0.30 | 14.49 | |||||||||||||
1946 | 0.40 | 0.21 | 1.46 | 0.56 | 3.30 | 1.38 | 1.12 | 1.74 | 1.06 | 1.66 | 0.56 | 0.11 | 13.56 | |||||||||||||
1947 | 0.18 | 0.47 | 0.37 | 2.35 | 2.62 | 2.58 | 3.29 | 2.07 | 1.00 | 1.14 | 0.77 | 0.50 | a | 17.34 | ||||||||||||
1948 | 0.57 | 0.89 | 0.17 | 0.58 | 0.89 | 2.02 | 0.98 | 0.51 | 1.05 | 0.19 | 0.52 | 0.93 | 9.30 | |||||||||||||
1949 | 0.99 | 0.06 | 1.47 | 1.71 | 2.04 | 2.14 | 1.34 | 0.20 | 0.21 | 1.51 | 0.01 | 0.55 | 12.23 | |||||||||||||
1950 | 0.47 | 0.07 | 0.40 | 1.29 | 1.23 | 0.26 | 3.06 | 0.50 | 2.31 | 0.20 | 0.61 | 0.17 | 10.57 | |||||||||||||
1951 | 0.65 | 0.09 | 0.56 | 1.77 | 1.23 | 1.19 | 0.93 | 1.20 | 0.39 | 1.23 | 0.68 | 1.09 | 11.01 | |||||||||||||
1952 | 0.24 | 1.01 | 1.15 | 0.84 | 1.65 | 0.82 | 1.00 | 1.28 | 0.26 | 0.17 | 0.32 | 0.19 | 8.93 | |||||||||||||
1953 | 0.33 | 0.79 | 0.16 | 0.52 | 1.38 | 3.69 | 2.87 | 2.00 | 0.33 | 0.33 | 0.23 | 0.11 | 12.74 | |||||||||||||
1954 | 0.26 | 0.26 | 1.16 | 0.31 | 0.82 | 0.32 | 1.98 | 1.48 | 0.83 | 0.33 | 0.23 | 0.40 | 8.38 | |||||||||||||
1955 | 0.26 | 0.67 | 0.68 | 0.52 | 1.53 | 1.61 | 1.40 | 1.43 | 0.46 | 0.23 | 0.96 | 0.37 | 10.12 | |||||||||||||
1956 | 0.70 | 0.59 | 0.44 | 0.71 | 2.34 | 0.76 | 1.16 | 0.82 | 0.15 | 0.07 | 1.02 | 0.93 | 9.69 | |||||||||||||
1957 | 0.68 | 0.63 | 1.32 | 1.05 | 2.20 | 1.11 | 3.84 | 1.08 | 0.73 | 2.23 | 0.50 | 0.05 | 15.42 | |||||||||||||
1958 | 0.16 | 0.66 | 1.09 | 0.74 | 1.85 | 1.08 | 1.34 | 1.88 | 0.34 | 0.03 | 0.47 | 1.22 | 10.86 | |||||||||||||
1959 | 0.37 | 0.33 | 0.83 | 0.66 | 2.52 | 2.29 | 0.91 | 0.52 | 2.20 | 0.88 | 0.14 | 0.03 | 11.68 | |||||||||||||
1960 | 0.21 | 0.45 | 0.52 | 0.33 | 0.90 | 1.17 | 0.86 | 0.56 | 0.84 | 0.61 | 0.85 | 0.60 | 7.90 | |||||||||||||
1961 | 0.26 | 0.28 | 1.17 | 0.96 | 2.28 | 1.74 | 1.96 | 2.32 | 2.96 | 0.65 | 0.41 | 0.06 | 15.05 | |||||||||||||
1962 | 0.95 | 0.99 | 0.53 | 0.69 | 1.82 | 1.59 | 0.93 | 0.39 | 0.46 | 1.46 | 0.39 | 0.16 | 10.36 | |||||||||||||
1963 | 1.19 | 0.14 | 0.33 | 1.27 | 0.30 | 0.76 | 1.62 | 2.04 | 0.58 | 0.86 | 0.14 | 0.15 | 9.38 | |||||||||||||
1964 | 0.23 | 0.57 | 0.66 | 1.67 | 0.84 | 1.79 | 0.60 | 0.75 | 0.75 | 0.00 | 0.26 | 0.50 | 8.62 | |||||||||||||
1965 | 0.55 | 0.31 | 0.48 | 1.22 | 3.19 | 1.25 | 1.50 | 0.97 | 3.07 | 0.28 | 0.16 | 0.44 | 13.42 | |||||||||||||
1966 | 0.16 | 0.20 | 0.50 | 0.38 | 0.15 | 1.78 | 0.71 | 1.37 | 1.94 | 1.07 | 0.68 | 0.31 | 9.25 | |||||||||||||
1967 | 0.54 | 0.59 | 1.09 | 1.33 | 1.52 | 3.58 | 2.35 | 0.60 | 0.84 | 0.71 | 0.53 | 1.08 | 14.76 | |||||||||||||
1968 | 0.18 | 0.62 | 0.29 | 2.93 | 2.31 | 0.62 | 2.92 | 1.26 | 0.20 | 0.57 | 0.58 | 0.20 | 12.68 | |||||||||||||
1969 | 0.66 | 1.23 | 0.27 | 0.72 | 0.44 | 3.91 | 0.66 | 0.78 | 0.34 | 2.14 | 0.35 | 0.31 | 11.81 | |||||||||||||
1970 | 0.09 | 0.14 | 1.00 | 0.35 | 1.21 | 1.77 | 1.73 | 0.65 | 1.75 | 2.00 | 0.91 | 0.29 | 11.89 | |||||||||||||
1971 | 0.37 | 0.61 | 0.87 | 1.41 | 2.95 | 0.16 | 1.22 | 0.88 | 0.51 | 0.27 | 0.19 | 0.19 | 9.63 | |||||||||||||
1972 | 0.22 | 0.10 | 0.18 | 1.06 | 1.72 | 1.80 | 0.56 | 1.39 | 0.66 | 1.98 | 0.84 | 1.13 | 11.64 | |||||||||||||
1973 | ----- | z | 0.15 | 1.48 | 2.24 | 0.82 | 2.27 | 1.92 | 0.78 | 2.22 | 0.07 | 1.27 | 0.78 | 14.00 | a | |||||||||||
1974 | 0.14 | 0.13 | 1.14 | 0.88 | 0.25 | 1.26 | 1.07 | 0.80 | 0.54 | 1.56 | 0.60 | 0.10 | 8.47 | |||||||||||||
1975 | 0.75 | 0.28 | 0.70 | 0.45 | 1.54 | 1.14 | 2.33 | 0.57 | 0.42 | 0.68 | 0.24 | 0.90 | 10.00 | |||||||||||||
1976 | 0.12 | 1.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.32 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.40 | 0.42 | 0.70 | 1.25 | 1.48 | 1.32 | 1.70 | 1.17 | 0.97 | 0.82 | 0.42 | 0.44 | 11.32 | |||||||||||||
S.D. | 0.30 | 0.31 | 0.41 | 0.80 | 0.93 | 0.88 | 0.93 | 0.69 | 0.73 | 0.59 | 0.30 | 0.37 | 2.35 | |||||||||||||
SKEW | 0.99 | 0.83 | 0.85 | 1.41 | 1.17 | 1.08 | 0.94 | 0.79 | 1.02 | 0.66 | 0.68 | 1.35 | 0.34 | |||||||||||||
MAX | 1.36 | 1.23 | 2.18 | 4.45 | 5.57 | 4.29 | 4.55 | 3.13 | 3.07 | 2.23 | 1.27 | 1.90 | 17.34 | |||||||||||||
MIN | 0.00 | 0.01 | 0.02 | 0.28 | 0.15 | 0.04 | 0.32 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 5.80 | |||||||||||||
YRS | 81 | 84 | 82 | 81 | 84 | 83 | 80 | 79 | 81 | 83 | 82 | 81 | 66 |