YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | 0.66 | 0.44 | 0.20 | 0.18 | 0.42 | 0.16 | 0.05 | 0.50 | 0.27 | 0.15 | 0.00 | 0.00 | 0.66 | |||||||||||||
1904 | 0.07 | 1.01 | 0.36 | 0.06 | 0.47 | 0.34 | 0.45 | 0.20 | 0.22 | 0.50 | 0.00 | 0.11 | 1.01 | |||||||||||||
1905 | 0.26 | 0.50 | 0.12 | 0.70 | 1.23 | 0.00 | 0.10 | 0.47 | 0.85 | 0.00 | 1.00 | 0.06 | 1.23 | |||||||||||||
1906 | ----- | z | 0.00 | 0.95 | 0.75 | 0.43 | 0.06 | 0.25 | 0.40 | q | 0.50 | 0.05 | 0.60 | 0.25 | ----- | z | ||||||||||
1907 | 0.30 | 0.30 | 0.35 | 0.00 | 0.27 | 0.20 | 0.21 | 0.05 | 0.05 | 0.33 | 0.49 | 0.20 | 0.49 | |||||||||||||
1908 | 0.25 | 0.31 | 0.16 | 0.10 | 0.25 | 0.10 | 0.45 | 0.45 | 1.70 | 0.85 | 0.25 | m | 0.26 | 1.70 | m | |||||||||||
1909 | 0.52 | g | 0.80 | 0.27 | 0.40 | 0.30 | d | 0.00 | 0.22 | 0.10 | 0.85 | 0.00 | 0.58 | 0.20 | 0.85 | k | ||||||||||
1910 | ----- | z | 0.23 | a | 0.00 | g | 0.00 | 0.25 | 0.00 | 0.59 | o | 0.25 | a | 0.50 | 0.45 | a | 0.00 | ----- | z | ----- | z | |||||
1911 | ----- | z | 0.00 | s | 0.40 | j | 0.20 | q | 0.20 | a | 0.30 | d | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | 0.15 | g | ----- | z | |
1912 | 0.00 | b | 0.00 | d | 0.98 | i | 0.75 | d | 0.00 | h | 0.00 | t | 0.20 | q | 0.12 | m | 0.00 | r | 0.55 | o | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | 0.00 | y | ----- | z | ----- | z | 0.25 | b | 0.26 | 0.48 | k | 0.00 | g | 0.40 | e | 0.70 | n | 0.40 | r | ----- | z | |
1914 | 0.55 | w | ----- | z | ----- | z | ----- | z | ----- | z | 0.11 | l | 0.90 | k | 0.00 | i | 0.20 | m | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.50 | 0.05 | m | ----- | z | |
1916 | 1.50 | o | 0.42 | p | 0.60 | p | 0.01 | 0.45 | 0.15 | 0.15 | r | 1.00 | 0.25 | 1.05 | 0.00 | 0.40 | ----- | z | ||||||||
1917 | 0.30 | 0.24 | 0.50 | 1.40 | 1.00 | t | 0.00 | c | 0.02 | s | 0.30 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 1.03 | 0.23 | 0.45 | 0.22 | l | 0.00 | a | ----- | z | 1.70 | l | 1.80 | ----- | z | ||||
1952 | 0.30 | 0.05 | 0.69 | a | 0.26 | 0.28 | 0.36 | 0.15 | 0.35 | 0.10 | 0.00 | 0.50 | 0.06 | 0.69 | a | |||||||||||
1953 | 0.00 | 0.00 | 0.00 | 0.13 | 0.20 | 0.10 | 0.40 | 0.13 | w | 0.00 | 1.26 | 0.00 | 0.00 | 1.26 | w | |||||||||||
1954 | 1.81 | 0.00 | 0.90 | 0.58 | 0.35 | d | 0.28 | 0.28 | 0.10 | 0.26 | 0.70 | 0.55 | 0.66 | 1.81 | d | |||||||||||
1955 | 0.67 | a | 0.35 | 0.20 | 0.00 | 0.60 | 0.74 | 0.22 | 0.57 | 0.37 | 0.10 | 0.00 | ----- | z | ----- | z | ||||||||||
1956 | 0.35 | c | 0.20 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.09 | 0.00 | 0.17 | ----- | z | ||||
1957 | 0.45 | 0.00 | 0.10 | 0.37 | 0.55 | 0.37 | 0.31 | 0.01 | 0.00 | 0.65 | 0.76 | 0.10 | 0.76 | |||||||||||||
1958 | 0.04 | 0.11 | 0.70 | 0.17 | 0.07 | 0.00 | 0.06 | 0.44 | 0.49 | 0.00 | 1.02 | 0.07 | 1.02 | |||||||||||||
1959 | 0.10 | 0.35 | 0.78 | 0.06 | 0.38 | 0.02 | 0.03 | 0.04 | 0.21 | 0.12 | 0.00 | 0.41 | 0.78 | |||||||||||||
1960 | 0.18 | 0.13 | 0.13 | 0.06 | 0.60 | 0.07 | 0.11 | 0.03 | 0.10 | 0.48 | 1.04 | 0.22 | 1.04 | |||||||||||||
1961 | 0.17 | 0.11 | 0.44 | 0.19 | 0.43 | a | 0.05 | 0.20 | 0.38 | 0.55 | 1.00 | 0.21 | 0.15 | 1.00 | a | |||||||||||
1962 | 0.38 | 0.56 | 0.30 | 0.10 | 0.46 | 0.63 | 0.02 | 0.02 | 0.06 | 0.39 | 0.00 | 0.19 | 0.63 | |||||||||||||
1963 | 0.00 | 0.20 | 0.53 | b | 0.92 | 0.00 | 0.22 | 0.09 | 0.41 | 1.02 | 0.10 | 0.82 | 0.35 | 1.02 | b | |||||||||||
1964 | 0.19 | 0.05 | 0.45 | 1.12 | 0.52 | 0.54 | 0.00 | 0.73 | 0.05 | 0.22 | 0.43 | 0.18 | 1.12 | |||||||||||||
1965 | 0.15 | 0.08 | 0.66 | 0.18 | 0.83 | 0.24 | 0.21 | 0.48 | 0.50 | 0.28 | 0.31 | 0.54 | 0.83 | |||||||||||||
1966 | 0.15 | 0.08 | 0.27 | 0.21 | 0.18 | 0.05 | 0.07 | 0.25 | 0.90 | 0.08 | 0.03 | 1.57 | 1.57 | |||||||||||||
1967 | 0.40 | 0.02 | 0.16 | 1.86 | 0.30 | 0.64 | 0.52 | 0.32 | 0.99 | 0.02 | 0.03 | 0.09 | 1.86 | |||||||||||||
1968 | 0.00 | 0.14 | 0.10 | 0.30 | 0.16 | 0.36 | 0.17 | 0.51 | 0.05 | 0.15 | 0.19 | 0.03 | 0.51 | |||||||||||||
1969 | 0.29 | 0.70 | 0.04 | 0.22 | 0.00 | 0.54 | 0.27 | 0.24 | 0.17 | 0.20 | 0.10 | 0.33 | 0.70 | |||||||||||||
1970 | 0.00 | 0.00 | 0.43 | 1.40 | 0.00 | 0.44 | 0.28 | e | 0.49 | 0.33 | 0.00 | 0.31 | 0.66 | 1.40 | e | |||||||||||
1971 | 0.23 | 0.86 | 0.00 | 0.46 | 0.51 | a | 0.00 | 0.18 | 0.18 | 0.08 | 0.30 | 0.12 | 0.36 | 0.86 | a | |||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.35 | 0.06 | 0.14 | 0.00 | r | 0.30 | 0.58 | 0.53 | 0.82 | 0.37 | 0.82 | r | |||||||||||
1973 | 0.00 | 0.25 | 0.80 | 0.76 | 0.19 | 0.20 | 0.90 | 0.31 | 0.06 | 0.82 | 0.59 | 0.00 | 0.90 | |||||||||||||
1974 | 0.20 | 0.00 | 0.27 | 0.18 | 0.00 | 0.00 | 0.22 | 0.23 | 0.00 | 0.57 | 0.20 | 0.06 | 0.57 | |||||||||||||
1975 | 0.13 | 0.21 | 1.40 | 0.30 | 1.35 | 0.69 | 0.59 | a | 0.12 | 0.42 | a | 0.78 | 0.17 | 0.16 | 1.40 | b | ||||||||||
1976 | 0.00 | 0.40 | 0.50 | 0.20 | 0.25 | 0.00 | 0.28 | 0.45 | 0.39 | 0.70 | 0.00 | 0.00 | 0.70 | |||||||||||||
1977 | 0.05 | 0.08 | 0.32 | 0.00 | 0.47 | f | 0.07 | b | 0.28 | d | 1.15 | 0.07 | 0.00 | 0.13 | 0.10 | 1.15 | l | |||||||||
1978 | 0.15 | 0.70 | 0.19 | 0.48 | 0.18 | 0.00 | 0.00 | 0.00 | k | 0.80 | 0.10 | 0.50 | 0.27 | 0.80 | k | |||||||||||
1979 | 0.25 | 0.15 | 0.65 | 0.00 | 0.81 | 0.00 | 1.03 | 0.27 | k | 0.00 | 1.03 | 0.00 | 0.00 | 1.03 | k | |||||||||||
1980 | 0.60 | 0.85 | 0.70 | 0.69 | 1.65 | a | 0.08 | 0.15 | 0.05 | 1.02 | 0.28 | 0.55 | 0.32 | 1.65 | a | |||||||||||
1981 | 0.27 | 0.06 | 0.40 | 0.41 | 0.36 | 0.12 | 0.35 | 0.05 | 0.55 | 1.35 | 0.15 | 0.06 | 1.35 | |||||||||||||
1982 | 0.15 | 0.17 | 0.32 | 0.48 | 0.70 | f | 0.28 | 0.62 | d | 0.62 | f | 0.90 | 0.65 | 0.38 | 0.12 | 0.90 | p | |||||||||
1983 | 0.12 | 0.25 | 0.40 | 0.69 | a | 0.11 | d | 0.11 | 0.00 | 1.00 | g | 1.00 | 0.20 | ----- | z | ----- | z | ----- | z | |||||||
1984 | 0.20 | 0.00 | 0.40 | 0.50 | 0.10 | 0.30 | 0.15 | 1.01 | 0.26 | 0.80 | 0.15 | i | 0.35 | 1.01 | i | |||||||||||
1985 | 0.10 | 0.30 | g | 0.45 | 0.05 | 0.00 | w | 0.32 | 0.51 | 0.00 | 0.84 | 0.68 | 0.67 | 0.16 | ----- | z | ||||||||||
1986 | 0.00 | 0.25 | a | 0.20 | 0.37 | 0.23 | e | 0.06 | 0.11 | 0.36 | 0.80 | 0.63 | 0.21 | 0.00 | 0.80 | f | ||||||||||
1987 | 0.80 | 0.19 | 0.22 | 0.41 | 0.20 | 0.09 | a | 1.17 | 0.86 | 0.09 | 0.22 | 0.50 | a | 0.27 | 1.17 | b | ||||||||||
1988 | 0.85 | 0.03 | 0.00 | e | 0.60 | 0.92 | 0.32 | 0.00 | 0.56 | 0.38 | 0.70 | 0.48 | 0.40 | 0.92 | e | |||||||||||
1989 | 0.00 | 1.07 | ----- | z | ----- | z | ----- | z | ----- | z | 0.12 | 0.45 | 0.18 | 0.14 | 0.07 | 0.00 | ----- | z | ||||||||
1990 | 0.20 | 0.80 | d | 0.82 | 1.20 | 0.15 | 1.90 | 0.70 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.26 | 0.28 | 0.40 | 0.43 | 0.41 | 0.24 | 0.29 | 0.35 | 0.41 | 0.42 | 0.33 | 0.27 | 1.01 | |||||||||||||
S.D. | 0.32 | 0.30 | 0.30 | 0.42 | 0.37 | 0.31 | 0.27 | 0.29 | 0.39 | 0.36 | 0.32 | 0.35 | 0.39 | |||||||||||||
SKEW | 2.88 | 1.17 | 1.00 | 1.43 | 1.57 | 3.21 | 1.55 | 0.95 | 1.02 | 0.71 | 0.64 | 2.99 | 0.72 | |||||||||||||
MAX | 1.81 | 1.07 | 1.40 | 1.86 | 1.65 | 1.90 | 1.17 | 1.15 | 1.70 | 1.35 | 1.04 | 1.80 | 1.86 | |||||||||||||
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 | 0.49 | |||||||||||||
YRS | 46 | 47 | 45 | 48 | 45 | 50 | 46 | 41 | 48 | 48 | 45 | 45 | 27 |