YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1876 | 0.00 | 0.06 | 0.13 | 0.02 | 0.00 | 0.00 | 0.55 | 1.59 | 0.37 | 0.00 | 0.02 | 0.14 | 2.88 | |||||||||||||
1877 | 0.59 | 1.21 | 0.48 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.33 | 0.15 | 0.27 | 3.29 | |||||||||||||
1878 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.74 | 0.74 | |||||||||||||
1879 | 0.00 | 0.00 | 0.00 | 0.55 | 0.00 | 0.00 | 0.20 | 0.08 | 0.05 | 0.00 | 0.00 | 0.10 | 0.98 | |||||||||||||
1880 | 1.35 | 0.01 | 0.00 | 0.00 | 0.00 | 0.05 | 0.20 | 0.03 | 0.04 | 0.01 | 0.09 | 0.00 | 1.78 | |||||||||||||
1881 | 0.96 | 0.68 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 0.22 | 0.13 | 0.05 | 0.00 | 0.00 | 2.35 | |||||||||||||
1882 | 0.00 | 1.58 | 1.48 | 0.07 | 0.44 | 0.00 | 0.01 | 0.32 | 0.00 | 0.00 | 0.00 | 1.96 | 5.86 | |||||||||||||
1883 | 0.00 | 0.02 | 0.00 | 0.07 | 0.00 | 0.00 | 0.05 | 0.86 | 0.00 | 0.00 | 1.71 | 0.01 | 2.72 | |||||||||||||
1884 | 1.06 | 0.08 | 0.33 | 0.31 | 0.00 | 0.00 | 0.00 | 2.23 | 0.00 | 1.11 | 0.23 | 0.00 | 5.35 | |||||||||||||
1885 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.01 | 0.00 | 0.00 | 1.09 | 0.02 | 2.43 | 0.15 | 3.90 | |||||||||||||
1886 | 0.18 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 0.01 | 0.99 | 0.68 | 0.95 | 2.90 | |||||||||||||
1887 | 1.12 | 0.06 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.59 | 0.00 | 2.43 | 4.69 | |||||||||||||
1888 | 0.00 | 0.86 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.83 | 0.64 | 1.70 | 0.12 | 0.52 | 4.67 | |||||||||||||
1889 | 0.00 | 2.53 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.05 | 0.00 | 0.00 | 0.00 | 0.05 | 2.67 | |||||||||||||
1890 | 1.85 | 0.87 | 0.52 | 0.00 | 0.05 | 0.00 | 0.00 | 0.02 | 0.04 | 0.00 | 0.00 | 0.00 | 3.35 | |||||||||||||
1891 | 0.44 | 0.46 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 1.13 | |||||||||||||
1892 | 0.09 | 1.72 | 0.00 | 0.00 | 0.06 | 0.00 | 0.50 | 0.06 | 0.00 | 0.00 | 0.00 | 1.23 | 3.66 | |||||||||||||
1893 | 0.00 | 0.00 | 1.29 | 0.00 | 0.29 | 0.00 | 0.50 | 0.38 | 0.08 | 0.01 | 0.19 | 0.26 | 3.00 | |||||||||||||
1894 | 0.00 | 0.00 | 0.74 | 0.00 | 0.00 | 0.00 | 0.36 | 0.10 | 0.51 | 0.84 | 0.00 | 0.40 | 2.95 | |||||||||||||
1895 | 0.78 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.15 | 0.37 | 0.00 | 1.33 | |||||||||||||
1896 | 0.14 | 0.00 | 0.43 | 0.00 | 0.00 | 0.00 | 0.41 | 0.32 | 0.31 | 0.10 | 0.06 | 0.78 | 2.55 | |||||||||||||
1897 | 2.83 | 0.06 | 0.48 | 0.00 | 0.00 | 0.00 | 0.00 | 0.57 | 0.20 | 0.00 | 0.00 | 0.04 | 4.18 | |||||||||||||
1898 | 0.42 | 0.00 | 0.39 | 0.01 | 0.00 | 0.00 | 0.00 | 0.19 | 0.00 | 0.00 | 0.21 | 1.16 | 2.38 | |||||||||||||
1899 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.02 | 0.50 | 0.00 | 0.60 | |||||||||||||
1900 | 0.08 | 0.11 | 0.06 | 0.53 | 0.00 | 0.00 | 0.02 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.85 | |||||||||||||
1901 | 0.12 | 3.01 | 0.30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 0.00 | 3.65 | |||||||||||||
1902 | 0.26 | 0.00 | 0.21 | 0.00 | 0.00 | 0.00 | 0.11 | 0.00 | 0.00 | 0.00 | g | 0.57 | 0.78 | 1.93 | a | |||||||||||
1903 | 0.00 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 0.67 | 0.04 | 0.00 | 0.00 | 0.98 | |||||||||||||
1904 | 0.00 | 0.00 | 0.28 | 0.00 | 0.07 | 0.00 | 0.05 | 0.69 | 0.24 | 0.00 | 0.00 | a | 0.10 | 1.43 | ||||||||||||
1905 | 1.15 | 3.43 | 3.33 | 0.16 | 0.00 | j | 0.00 | 0.00 | 0.02 | 0.52 | 0.02 | 2.44 | 0.34 | 11.41 | a | |||||||||||
1906 | 0.02 | 1.50 | 0.30 | 0.91 | 0.08 | 0.00 | 0.30 | 1.69 | 0.00 | 0.01 | 0.23 | 0.36 | 5.40 | |||||||||||||
1907 | 0.39 | 0.10 | 0.72 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | a | 0.00 | 1.32 | 0.06 | 0.00 | 2.61 | ||||||||||||
1908 | 0.16 | 0.84 | 0.08 | 0.05 | 0.00 | 0.00 | 1.34 | 0.30 | 0.34 | 0.00 | 0.24 | a | 2.58 | 5.93 | ||||||||||||
1909 | 0.05 | 0.08 | 0.64 | 0.00 | 0.00 | 0.00 | 0.01 | 6.25 | 0.96 | a | 0.00 | 0.18 | 0.46 | 8.63 | ||||||||||||
1910 | 0.02 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.84 | 0.18 | 1.22 | 0.07 | 1.58 | a | 0.00 | 3.93 | ||||||||||||
1911 | 0.42 | 0.64 | 0.12 | 0.11 | 0.00 | 0.00 | 0.42 | 0.01 | 0.23 | 0.84 | 0.00 | 0.00 | 2.79 | |||||||||||||
1912 | 0.00 | 0.00 | 0.78 | 0.10 | 0.90 | 0.62 | 0.18 | 0.14 | 0.00 | 0.17 | 0.00 | 0.22 | 3.11 | |||||||||||||
1913 | 0.12 | 0.14 | 0.00 | 0.18 | 0.00 | 0.00 | 0.17 | 0.28 | 0.00 | 0.00 | 0.15 | 0.00 | 1.04 | |||||||||||||
1914 | 0.05 | 0.32 | 0.72 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | a | 0.00 | 0.89 | 0.47 | 0.98 | 3.70 | ||||||||||||
1915 | 2.56 | 0.72 | 0.00 | 0.08 | c | 0.00 | 0.00 | 0.34 | 0.41 | 0.10 | 0.00 | 0.00 | a | 0.12 | a | 4.33 | ||||||||||
1916 | 0.52 | 0.00 | 0.24 | 0.01 | 0.00 | 0.00 | 0.92 | 0.02 | 0.01 | 0.00 | 0.00 | a | 0.73 | 2.45 | ||||||||||||
1917 | 0.89 | c | 0.06 | a | 0.00 | 0.24 | 0.00 | 0.00 | 0.50 | a | 0.23 | 0.17 | a | 0.00 | 0.00 | 0.00 | 2.09 | |||||||||
1918 | 0.81 | 0.12 | 0.72 | 0.00 | 0.00 | 0.02 | 0.02 | 0.53 | 0.02 | 0.35 | a | 0.07 | 0.24 | 2.90 | ||||||||||||
1919 | 0.24 | 0.00 | 0.41 | 0.00 | 0.00 | 0.00 | 0.06 | a | 0.88 | 0.03 | 0.00 | b | 0.28 | 0.00 | 1.90 | |||||||||||
1920 | 1.47 | 0.66 | 0.37 | 0.00 | 0.00 | 0.00 | 0.00 | 0.62 | 1.48 | 0.15 | 0.00 | a | 0.00 | 4.75 | ||||||||||||
1921 | 0.70 | 0.03 | 0.09 | 0.00 | a | 0.06 | a | 0.00 | 0.05 | 1.44 | 3.65 | 0.04 | 0.00 | 0.92 | 6.98 | |||||||||||
1922 | 0.54 | 0.16 | 0.22 | 0.00 | 0.05 | 0.09 | 0.00 | 0.12 | 1.11 | 0.00 | 0.66 | 0.08 | 3.03 | |||||||||||||
1923 | 0.00 | 0.03 | 0.06 | 0.16 | 0.00 | 0.00 | 0.28 | 0.09 | a | 1.54 | 0.00 | 0.27 | 1.28 | 3.71 | ||||||||||||
1924 | 0.00 | 0.00 | 0.03 | 0.11 | 0.06 | 0.06 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.50 | 0.78 | |||||||||||||
1925 | 0.01 | 0.01 | 0.35 | 0.34 | 0.00 | 0.00 | 0.17 | 0.23 | 0.00 | 1.67 | 0.20 | 0.80 | 3.78 | |||||||||||||
1926 | 0.10 | 0.02 | 0.06 | 0.44 | 0.00 | 0.00 | 0.14 | 2.19 | 1.85 | 0.00 | 0.00 | 4.43 | 9.23 | |||||||||||||
1927 | 0.20 | 0.16 | 0.41 | 0.15 | 0.00 | 0.00 | 0.18 | 0.14 | 0.00 | 1.08 | 0.10 | 1.50 | 3.92 | |||||||||||||
1928 | 0.00 | 0.22 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 0.06 | 0.04 | 0.00 | 0.47 | |||||||||||||
1929 | 0.14 | 0.00 | 0.02 | 0.00 | 0.02 | 0.00 | 0.02 | a | 0.69 | 1.47 | 0.00 | 0.00 | e | 0.00 | h | 2.36 | a | |||||||||
1930 | 0.28 | 0.01 | 0.91 | 0.02 | 0.12 | 0.00 | 0.21 | 0.04 | 0.00 | 0.20 | 0.00 | 0.00 | 1.79 | |||||||||||||
1931 | 0.04 | 1.13 | 0.00 | 0.75 | 0.00 | 0.00 | c | 0.21 | b | 2.22 | 0.74 | 0.09 | 0.14 | 0.59 | 5.91 | |||||||||||
1932 | 0.00 | 1.06 | 0.00 | j | 0.00 | 0.00 | 0.00 | 1.36 | a | 0.00 | a | 0.03 | 3.39 | 0.00 | 0.51 | 6.35 | a | |||||||||
1933 | 1.16 | 0.12 | 0.00 | 0.91 | 0.01 | 0.00 | 0.00 | 0.27 | 0.20 | 0.78 | 0.02 | 0.09 | 3.56 | |||||||||||||
1934 | 0.03 | 0.18 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.74 | 0.00 | 0.00 | 0.54 | 0.65 | 2.32 | |||||||||||||
1935 | 0.74 | 0.66 | 0.11 | 0.01 | 0.00 | 0.00 | 0.00 | 0.59 | 0.84 | 0.00 | 0.03 | 0.30 | 3.28 | |||||||||||||
1936 | 0.24 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.11 | 0.02 | 0.00 | 0.42 | 0.14 | 1.29 | |||||||||||||
1937 | 0.14 | 0.08 | 1.47 | 0.00 | 0.00 | 0.09 | 0.46 | 0.00 | 1.60 | g | 0.00 | 0.00 | 0.35 | 2.59 | a | |||||||||||
1938 | 0.07 | 0.58 | 0.61 | 0.00 | 0.00 | 0.00 | 0.18 | 0.25 | 0.35 | 0.00 | 0.00 | 0.88 | 2.92 | |||||||||||||
1939 | 0.91 | 0.19 | 0.01 | 0.00 | 0.00 | 0.00 | 0.11 | a | 0.12 | 5.13 | 0.00 | 0.19 | 0.00 | 6.66 | ||||||||||||
1940 | 0.04 | 0.25 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.53 | 0.41 | 0.00 | 0.79 | 2.33 | |||||||||||||
1941 | 0.83 | 0.50 | a | 1.54 | 0.28 | 0.00 | 0.00 | 0.17 | 2.16 | 0.08 | 0.36 | 0.37 | 0.42 | 6.71 | ||||||||||||
1942 | 0.19 | 0.84 | 0.17 | 0.00 | 0.00 | 0.00 | b | 0.08 | 1.08 | 0.00 | 0.04 | 0.00 | 0.01 | 2.41 | ||||||||||||
1943 | 0.33 | 0.00 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 1.29 | 0.04 | 0.03 | 0.00 | 0.46 | 2.42 | |||||||||||||
1944 | 0.20 | 1.25 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.64 | 1.22 | a | 0.35 | 4.07 | ||||||||||||
1945 | 0.37 | 1.05 | 0.39 | 0.00 | a | 0.00 | 0.00 | 0.09 | 1.61 | 0.00 | 0.54 | 0.00 | 0.05 | 4.10 | ||||||||||||
1946 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.44 | 0.19 | 0.55 | 0.00 | 0.12 | 0.88 | 2.25 | |||||||||||||
1947 | 0.00 | 0.00 | 0.18 | 0.00 | 0.00 | 0.00 | a | 0.00 | 0.57 | 0.17 | 0.00 | 0.00 | 0.11 | 1.03 | ||||||||||||
1948 | 0.00 | 0.02 | 0.17 | 0.00 | 0.00 | 0.07 | 0.22 | 0.00 | 0.02 | 1.07 | 0.00 | 0.26 | 1.83 | |||||||||||||
1949 | 2.46 | 0.00 | 0.04 | 0.00 | 0.65 | 0.00 | 0.11 | 0.00 | ----- | z | ----- | z | 0.00 | k | 0.45 | a | 3.71 | c | ||||||||
1950 | 0.03 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 2.72 | 0.01 | 0.44 | 0.00 | 0.00 | 0.00 | 3.35 | |||||||||||||
1951 | 0.48 | 0.01 | 0.00 | b | 0.40 | 0.00 | 0.00 | 0.41 | 1.89 | e | 0.00 | a | 0.70 | 0.20 | 0.16 | 4.25 | ||||||||||
1952 | 0.41 | 0.35 | 0.75 | 0.31 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.40 | 1.43 | 3.79 | |||||||||||||
1953 | 0.01 | 0.10 | 0.22 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | a | 0.01 | 0.00 | 0.42 | ||||||||||||
1954 | 0.15 | 0.07 | 0.27 | 0.00 | 0.00 | 0.00 | 0.28 | 0.00 | 0.00 | 0.11 | 0.02 | 0.00 | 0.90 | |||||||||||||
1955 | 1.32 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.66 | 0.32 | 0.00 | 0.00 | 0.00 | 0.01 | 3.31 | |||||||||||||
1956 | 0.00 | 0.04 | 0.00 | a | 0.00 | e | 0.00 | 0.00 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | |||||||||||
1957 | ----- | z | ----- | z | 0.23 | 0.10 | 0.00 | 0.00 | 0.00 | ----- | z | 0.00 | 2.93 | 0.00 | 0.09 | 3.35 | c | |||||||||
1958 | 0.00 | 1.65 | 0.38 | 0.05 | 0.00 | 0.01 | 0.74 | 0.13 | 0.00 | 0.15 | 0.00 | 0.00 | 3.11 | |||||||||||||
1959 | 0.02 | 0.25 | 0.00 | 0.01 | 0.00 | 0.00 | 0.03 | 0.03 | 0.25 | 0.06 | 0.01 | 1.21 | 1.87 | |||||||||||||
1960 | 0.76 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.01 | 0.03 | 0.33 | 0.06 | 0.00 | 0.21 | 1.47 | |||||||||||||
1961 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.07 | 1.64 | 2.22 | |||||||||||||
1962 | 0.53 | 0.19 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.03 | 0.07 | 0.64 | 1.85 | |||||||||||||
1963 | 0.56 | 0.24 | 0.14 | 0.00 | 0.00 | 0.00 | 0.16 | 0.07 | 2.77 | 1.15 | 0.22 | 0.00 | 5.31 | |||||||||||||
1964 | 0.05 | 0.00 | 0.03 | 0.12 | 0.00 | 0.00 | 0.00 | 0.78 | 0.00 | 0.33 | 0.24 | 0.11 | 1.66 | |||||||||||||
1965 | 0.66 | 0.55 | 0.11 | 1.10 | 0.00 | 0.00 | 0.53 | 0.04 | 0.00 | 0.00 | 0.80 | 2.41 | 6.20 | |||||||||||||
1966 | 0.67 | 0.21 | 0.09 | 0.00 | 0.00 | 0.00 | 0.20 | 0.25 | 1.04 | 0.07 | 0.01 | 0.01 | 2.55 | |||||||||||||
1967 | 0.21 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.04 | 0.71 | 2.51 | 0.00 | 2.20 | 0.64 | 6.37 | |||||||||||||
1968 | 0.02 | 0.18 | 0.18 | 0.00 | 0.00 | 0.00 | 0.90 | 0.05 | 0.00 | 0.00 | 0.00 | 0.03 | 1.36 | |||||||||||||
1969 | 0.95 | 0.01 | 0.00 | 0.10 | 0.08 | 0.00 | 0.00 | 0.00 | 0.05 | 0.02 | 1.93 | 0.71 | 3.85 | |||||||||||||
1970 | 0.00 | 0.60 | 1.68 | 0.00 | 0.00 | 0.00 | 0.00 | 1.50 | 0.02 | 0.00 | 0.02 | 0.01 | 3.83 | |||||||||||||
1971 | 0.07 | 0.03 | 0.00 | 0.31 | 0.00 | 0.00 | 0.00 | 1.54 | 1.25 | 0.03 | 0.00 | 0.19 | 3.42 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 | 0.00 | 0.09 | 0.00 | 3.22 | 0.25 | 0.04 | 4.02 | |||||||||||||
1973 | 0.01 | 0.57 | 1.31 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 0.00 | 0.00 | 0.12 | 0.00 | 2.28 | |||||||||||||
1974 | 0.49 | 0.00 | 0.19 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.68 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.39 | 0.37 | 0.30 | 0.10 | 0.03 | 0.01 | 0.22 | 0.47 | 0.39 | 0.30 | 0.25 | 0.46 | 3.15 | |||||||||||||
S.D. | 0.57 | 0.63 | 0.49 | 0.21 | 0.12 | 0.08 | 0.40 | 0.83 | 0.80 | 0.65 | 0.52 | 0.70 | 1.81 | |||||||||||||
SKEW | 2.23 | 2.70 | 3.30 | 2.90 | 5.42 | 6.70 | 3.60 | 4.02 | 3.49 | 3.09 | 3.00 | 2.82 | 0.91 | |||||||||||||
MAX | 2.83 | 3.43 | 3.33 | 1.10 | 0.90 | 0.62 | 2.72 | 6.25 | 5.13 | 3.39 | 2.44 | 4.43 | 9.23 | |||||||||||||
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 | 98 | 98 | 98 | 99 | 97 | 98 | 98 | 97 | 96 | 96 | 97 | 97 | 91 |