YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 0.00 | 0.42 | 0.18 | 0.57 | 1.27 | 0.71 | 0.07 | 1.04 | 0.48 | 0.11 | 0.31 | 0.24 | 5.40 | |||||||||||||
1894 | 0.03 | 0.40 | 0.31 | 1.75 | 1.03 | 0.08 | 0.76 | 0.11 | 0.97 | 0.00 | 0.05 | 0.44 | 5.93 | |||||||||||||
1895 | 0.27 | 1.01 | 0.56 | 1.03 | 3.13 | 3.34 | 1.34 | 0.38 | 0.79 | 0.75 | 0.40 | 0.00 | 13.00 | |||||||||||||
1896 | 0.67 | 0.18 | 0.93 | a | 1.18 | 1.42 | 0.46 | 4.82 | 2.15 | 0.99 | 0.63 | 0.02 | 0.07 | 13.52 | ||||||||||||
1897 | 0.38 | 0.61 | 2.02 | 0.81 | 3.20 | 2.47 | 2.98 | 2.46 | u | 0.29 | 1.11 | 0.40 | 0.38 | 14.65 | a | |||||||||||
1898 | 0.20 | 0.33 | 0.23 | ----- | z | 5.83 | 1.69 | 3.50 | 0.83 | 0.13 | 0.78 | 0.60 | 0.37 | 14.49 | a | |||||||||||
1899 | 1.14 | 0.69 | 0.71 | 0.70 | 1.15 | 0.47 | 2.34 | 1.04 | 0.30 | 1.85 | a | 0.00 | 0.40 | 10.79 | ||||||||||||
1900 | 0.16 | a | 0.58 | 0.62 | 6.32 | 0.96 | 0.31 | 1.28 | 0.00 | 1.07 | 0.11 | 0.04 | 0.16 | 11.61 | ||||||||||||
1901 | 0.22 | 0.45 | 0.95 | 2.12 | 2.38 | 2.45 | 0.26 | 0.47 | 1.06 | 0.75 | 0.05 | 1.06 | 12.22 | |||||||||||||
1902 | 0.12 | 0.16 | 0.16 | 0.80 | 1.77 | 0.62 | 0.65 | 0.48 | 4.13 | 0.54 | 0.74 | 0.67 | 10.84 | |||||||||||||
1903 | 0.02 | 0.68 | 0.47 | 0.56 | 0.96 | 1.76 | 1.25 | 0.93 | 0.72 | 0.51 | 0.30 | 0.00 | 8.16 | |||||||||||||
1904 | 0.00 | 0.20 | 0.38 | 1.70 | 3.66 | 1.74 | 3.77 | 0.49 | 1.25 | 0.46 | 0.00 | 0.04 | 13.69 | |||||||||||||
1905 | 0.17 | a | 0.15 | 1.62 | 4.38 | r | 5.35 | 0.55 | 1.81 | 0.60 | 0.17 | 1.47 | 0.03 | 0.00 | 11.92 | a | ||||||||||
1906 | 0.00 | 0.01 | 3.06 | 3.04 | 1.91 | 1.10 | 2.24 | 0.70 | 2.30 | w | 2.50 | b | 0.93 | 0.03 | 15.52 | a | ||||||||||
1907 | ----- | z | ----- | z | 0.42 | ----- | z | 1.42 | u | 0.51 | ----- | z | ----- | z | 0.18 | 0.33 | ----- | z | ----- | z | 1.44 | h | ||||
1908 | ----- | z | 0.11 | 0.25 | 0.10 | 5.25 | 1.24 | 1.65 | 1.82 | 0.52 | 1.14 | 1.05 | 0.47 | 13.60 | a | |||||||||||
1909 | 0.00 | 1.61 | 2.44 | a | 0.82 | 3.39 | 2.91 | 5.14 | 0.86 | 1.42 | 0.27 | 0.74 | a | 0.53 | 20.13 | |||||||||||
1910 | 0.18 | a | 0.13 | 0.40 | 0.84 | 2.76 | 0.53 | 0.24 | 1.15 | 0.49 | 1.06 | 0.11 | 0.56 | 8.45 | ||||||||||||
1911 | 0.19 | 0.88 | 0.01 | 0.83 | 1.31 | 2.59 | 0.92 | 0.86 | 0.17 | 0.67 | 0.37 | 0.52 | 9.32 | |||||||||||||
1912 | 0.49 | 0.96 | a | 1.64 | a | 1.61 | 2.86 | 2.49 | 1.25 | 0.51 | 2.81 | 1.42 | 0.50 | a | ----- | z | 16.54 | a | ||||||||
1913 | 0.28 | 0.86 | 0.45 | 1.34 | 3.16 | 0.78 | 2.03 | 0.18 | 1.40 | w | 0.20 | 0.00 | 4.79 | 14.07 | a | |||||||||||
1914 | 0.01 | 0.11 | 0.75 | y | 1.34 | 2.92 | 1.98 | ----- | z | ----- | z | ----- | z | 3.09 | 0.00 | 0.07 | 9.52 | d | ||||||||
1915 | 0.20 | ----- | z | 1.58 | s | 3.87 | 2.45 | 2.03 | ----- | z | 3.89 | 1.17 | 2.81 | 0.26 | ----- | z | 16.68 | d | ||||||||
1916 | ----- | z | 0.00 | 0.34 | a | 0.27 | ----- | z | ----- | z | 4.13 | y | ----- | z | 0.00 | 2.82 | ----- | z | ----- | z | 3.43 | g | ||||
1917 | 0.10 | 0.18 | 0.40 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.62 | 0.09 | 0.28 | 1.67 | f | |||||
1918 | 0.35 | 0.29 | y | 0.10 | 0.76 | 1.62 | 0.88 | 2.97 | 1.84 | 1.42 | 0.12 | 0.51 | 0.53 | 11.10 | a | |||||||||||
1919 | 0.00 | 0.22 | 0.14 | 0.75 | a | ----- | z | 0.04 | 1.02 | 0.47 | 4.15 | 0.61 | 1.01 | 0.12 | 8.53 | a | ||||||||||
1920 | ----- | z | 0.09 | a | 0.03 | 4.43 | 1.42 | ----- | z | 0.48 | 1.20 | 0.88 | 0.68 | 0.00 | a | 0.16 | 9.37 | b | ||||||||
1921 | 1.41 | 0.18 | 0.27 | 1.32 | 2.83 | 2.70 | 1.64 | 2.93 | 0.21 | 0.47 | 0.12 | 0.40 | 14.48 | |||||||||||||
1922 | ----- | z | 0.36 | 0.15 | 1.73 | 1.25 | 0.25 | 1.46 | 1.72 | 0.05 | 0.02 | 0.61 | 0.43 | 8.03 | a | |||||||||||
1923 | 0.07 | 1.44 | w | 2.12 | 0.82 | 2.14 | 4.54 | 0.96 | 1.80 | 1.03 | 2.94 | 0.01 | 0.38 | 16.81 | a | |||||||||||
1924 | 0.20 | a | 0.49 | 1.45 | 0.84 | 2.59 | 0.38 | 0.05 | 0.00 | 1.88 | 1.04 | 0.00 | 0.80 | 9.72 | ||||||||||||
1925 | 0.21 | 0.05 | 0.26 | 0.06 | 1.01 | 3.09 | 1.76 | 4.25 | 0.22 | 3.05 | 0.66 | c | 1.27 | 15.89 | ||||||||||||
1926 | 0.34 | 0.25 | 0.37 | 1.03 | 0.97 | 1.44 | 1.82 | 0.59 | 0.94 | 1.71 | 0.55 | 1.10 | 11.11 | |||||||||||||
1927 | 0.00 | 0.63 | 1.75 | 2.34 | 0.88 | 2.78 | 2.29 | 1.32 | 0.46 | 0.23 | ----- | z | 0.13 | 12.81 | a | |||||||||||
1928 | 0.08 | 0.15 | 0.54 | 0.87 | 2.87 | 6.11 | m | 2.78 | 1.39 | 0.00 | 0.51 | 1.05 | 0.03 | 10.27 | a | |||||||||||
1929 | 0.04 | 0.35 | 1.42 | 3.01 | 0.75 | 0.91 | 0.63 | 0.60 | 2.11 | 1.39 | 0.86 | 0.02 | 12.09 | |||||||||||||
1930 | 0.12 | 0.05 | 0.33 | 0.47 | 2.41 | 0.30 | 1.09 | 4.65 | 1.82 | 0.46 | 0.65 | 0.15 | 12.50 | |||||||||||||
1931 | 0.00 | 0.89 | 0.55 | 0.63 | 1.38 | 0.77 | 0.33 | 1.13 | 0.35 | 1.23 | 0.56 | 0.12 | 7.94 | |||||||||||||
1932 | 0.02 | 0.72 | 0.83 | 0.52 | 1.47 | 2.31 | 3.34 | 0.43 | 0.23 | 0.26 | 0.10 | 0.14 | 10.37 | |||||||||||||
1933 | 0.15 | 0.01 | 0.12 | 1.53 | 3.56 | 0.00 | 1.28 | 1.34 | 0.92 | 0.06 | 0.00 | 0.50 | 9.47 | |||||||||||||
1934 | 0.00 | 0.71 | 0.49 | 0.96 | 1.35 | 2.33 | 2.02 | 0.28 | 0.55 | 0.00 | 0.00 | 0.00 | 8.69 | |||||||||||||
1935 | 0.07 | 0.56 | 0.29 | 0.92 | 5.79 | 1.57 | 0.66 | 0.13 | 2.02 | 0.47 | 0.45 | 0.00 | 12.93 | |||||||||||||
1936 | 0.00 | 0.16 | 0.59 | 0.85 | 2.92 | 1.43 | 0.79 | 1.12 | 0.88 | 1.21 | 0.08 | 0.36 | 10.39 | |||||||||||||
1937 | 0.43 | 0.33 | 1.04 | 1.40 | 1.21 | 2.85 | 1.53 | 0.13 | 0.52 | 0.00 | 0.38 | 1.50 | 11.32 | |||||||||||||
1938 | 0.13 | 0.10 | 0.55 | 1.89 | 2.84 | 0.38 | 0.71 | 0.38 | 2.70 | 0.31 | 0.51 | 0.39 | 10.89 | |||||||||||||
1939 | 0.35 | 0.34 | 1.17 | 0.56 | 1.23 | 0.75 | 0.12 | 0.26 | 0.47 | 0.12 | 0.07 | 0.24 | 5.68 | |||||||||||||
1940 | 0.51 | 0.37 | 1.00 | 1.22 | 1.51 | 0.81 | 0.90 | 0.48 | 2.31 | 0.85 | 0.29 | 0.35 | 10.60 | |||||||||||||
1941 | 0.81 | 0.02 | 1.05 | 3.04 | 1.87 | 2.17 | 2.07 | 1.68 | 1.02 | 1.14 | 0.11 | 1.02 | 16.00 | |||||||||||||
1942 | 0.50 | 1.18 | 0.31 | 3.19 | 2.92 | 2.20 | 2.08 | 0.38 | 0.40 | 2.68 | 0.40 | 0.01 | 16.25 | |||||||||||||
1943 | 0.05 | 0.32 | 0.45 | 1.56 | 4.45 | 0.77 | 0.62 | 0.27 | 0.00 | 0.07 | 0.19 | 0.15 | 8.90 | |||||||||||||
1944 | 0.91 | a | 0.13 | 1.56 | 4.32 | 1.66 | 0.74 | 2.26 | 0.42 | 0.20 | 0.24 | 0.51 | 0.24 | 13.19 | ||||||||||||
1945 | 0.68 | 0.32 | 0.21 | 3.07 | 3.50 | 2.52 | 2.04 | 2.00 | 0.69 | 1.30 | 0.03 | 0.36 | 16.72 | |||||||||||||
1946 | 0.09 | 0.19 | 0.88 | 0.77 | 2.05 | 0.50 | 1.01 | 1.08 | 0.90 | 1.78 | 2.06 | 0.00 | 11.31 | |||||||||||||
1947 | 0.24 | a | 0.64 | a | 0.79 | 1.32 | 2.78 | 2.83 | 1.09 | 0.41 | 0.21 | 2.95 | 0.62 | 0.38 | 14.26 | |||||||||||
1948 | 1.05 | y | 0.22 | v | 0.81 | 0.38 | 1.13 | 1.53 | 0.34 | 0.15 | 0.12 | 0.26 | 0.26 | 0.54 | 5.52 | b | ||||||||||
1949 | 0.79 | 0.05 | 1.39 | 1.01 | 2.97 | 3.67 | 0.67 | 0.05 | 0.42 | 1.07 | 0.00 | 0.05 | 12.14 | |||||||||||||
1950 | 0.44 | 0.10 | 0.25 | 1.89 | 2.32 | 1.34 | 1.09 | 0.34 | d | 0.86 | a | 0.27 | 0.24 | 0.04 | 9.18 | |||||||||||
1951 | 0.63 | 0.55 | 0.42 | 1.27 | 3.57 | 1.59 | 2.36 | 2.03 | 0.46 | 1.56 | a | 0.24 | 0.77 | 15.45 | ||||||||||||
1952 | 0.05 | a | 0.14 | 0.88 | 1.66 | 3.18 | 0.45 | 0.55 | 1.02 | 0.25 | 0.34 | 0.69 | 0.03 | 9.24 | ||||||||||||
1953 | 0.33 | 0.35 | 1.13 | 1.65 | 2.28 | 0.76 | 1.08 | 0.20 | 0.00 | a | 0.08 | 0.83 | 0.04 | 8.73 | ||||||||||||
1954 | 0.05 | 0.00 | 0.32 | 0.15 | 0.98 | 0.69 | 0.62 | 0.97 | 0.49 | 0.27 | 0.66 | 0.45 | 5.65 | |||||||||||||
1955 | 0.44 | 0.42 | 0.71 | 0.09 | 0.27 | i | 2.70 | 0.62 | 1.70 | 1.37 | 0.33 | 1.19 | 0.21 | 9.78 | a | |||||||||||
1956 | 0.51 | 0.49 | 0.46 | 0.67 | 1.84 | a | 0.28 | 1.20 | a | 3.77 | 0.10 | 0.00 | 0.58 | 0.49 | 10.39 | |||||||||||
1957 | 0.54 | 0.30 | 0.22 | c | 2.60 | 4.95 | 1.50 | 0.71 | b | 0.35 | j | 0.65 | 1.76 | 0.23 | 0.00 | 13.46 | a | |||||||||
1958 | 0.10 | 0.50 | 1.06 | 1.42 | 3.45 | 1.50 | 1.59 | 0.94 | 0.81 | 0.28 | 0.33 | 0.88 | 12.86 | |||||||||||||
1959 | 0.15 | 0.26 | 1.56 | 1.39 | 2.34 | 0.93 | 0.60 | 0.21 | 2.00 | 2.41 | 0.00 | 0.01 | 11.86 | |||||||||||||
1960 | 0.30 | 0.38 | 0.37 | 1.60 | 1.64 | 0.65 | 1.35 | 0.16 | 0.92 | 2.26 | 0.12 | 0.61 | 10.36 | |||||||||||||
1961 | 0.05 | 0.18 | 2.65 | 0.12 | 3.85 | 1.87 | 3.73 | 2.23 | 3.22 | 0.44 | 0.19 | 0.15 | 18.68 | |||||||||||||
1962 | 0.45 | 0.26 | 0.16 | 0.11 | 1.89 | 3.99 | 1.10 | 1.58 | 0.23 | 0.68 | 0.39 | 0.12 | a | 10.96 | ||||||||||||
1963 | 0.25 | 0.21 | 0.61 | 0.50 | 0.12 | 2.89 | 1.27 | 3.58 | 2.69 | a | 0.50 | 0.20 | 0.16 | 12.98 | ||||||||||||
1964 | 0.12 | 0.12 | 0.50 | 1.58 | 2.44 | 0.99 | 0.47 | 0.45 | 0.66 | 0.11 | 1.55 | 0.06 | 9.05 | |||||||||||||
1965 | 0.39 | 0.30 | 0.22 | 0.94 | 3.31 | 3.83 | 3.39 | 0.44 | 2.61 | 0.40 | 0.00 | 0.38 | a | 16.21 | ||||||||||||
1966 | 0.00 | 0.25 | 0.12 | 1.25 | 0.45 | 2.70 | 0.06 | 1.29 | 3.61 | 0.55 | 0.36 | 0.02 | d | 10.66 | ||||||||||||
1967 | 0.30 | 0.12 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.42 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.27 | 0.36 | 0.74 | 1.40 | 2.38 | 1.56 | 1.49 | 1.09 | 1.00 | 0.91 | 0.39 | 0.39 | 11.50 | |||||||||||||
S.D. | 0.29 | 0.31 | 0.65 | 1.14 | 1.28 | 1.10 | 1.11 | 1.06 | 1.00 | 0.88 | 0.40 | 0.63 | 3.20 | |||||||||||||
SKEW | 1.68 | 1.48 | 1.52 | 1.87 | 0.80 | 0.61 | 1.21 | 1.65 | 1.51 | 1.15 | 1.61 | 5.15 | 0.39 | |||||||||||||
MAX | 1.41 | 1.61 | 3.06 | 6.32 | 5.83 | 4.54 | 5.14 | 4.65 | 4.15 | 3.09 | 2.06 | 4.79 | 20.13 | |||||||||||||
MIN | 0.00 | 0.00 | 0.01 | 0.06 | 0.12 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.40 | |||||||||||||
YRS | 69 | 70 | 72 | 70 | 69 | 70 | 69 | 68 | 70 | 74 | 71 | 70 | 52 |