YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | 0.00 | 0.25 | 0.50 | i | 0.35 | 0.30 | 0.18 | 1.34 | a | 0.17 | 2.58 | 0.29 | 0.45 | 0.20 | 2.58 | j | ||||||||||
1920 | 0.11 | 0.10 | 0.20 | 1.20 | 0.24 | 0.42 | 0.35 | 1.20 | 0.16 | 0.62 | a | 0.15 | 0.01 | 1.20 | a | |||||||||||
1921 | 0.90 | 0.22 | 0.20 | b | 0.64 | 0.47 | 0.95 | 0.88 | 1.23 | 0.32 | 0.15 | 0.09 | 0.42 | 1.23 | b | |||||||||||
1922 | 0.26 | 0.12 | a | 0.09 | 1.04 | 0.25 | a | 0.63 | 0.85 | 0.74 | a | 0.00 | a | 0.00 | 0.85 | c | 0.28 | 1.04 | g | |||||||
1923 | 0.08 | 0.20 | a | 0.30 | 0.58 | 0.81 | 1.54 | 1.17 | 0.50 | a | 0.55 | 0.61 | 0.10 | c | 0.12 | 1.54 | e | |||||||||
1924 | 0.12 | 0.21 | 0.17 | a | 0.25 | 0.99 | a | 0.37 | 0.31 | 0.18 | a | 1.60 | 1.12 | b | 0.00 | 0.26 | a | 1.60 | f | |||||||
1925 | 0.00 | 0.03 | a | 0.18 | c | 0.38 | b | 0.38 | 1.52 | a | 0.68 | d | 0.35 | 0.14 | c | 0.52 | 0.55 | a | 0.48 | 1.52 | o | |||||
1926 | 0.20 | 0.25 | 0.15 | 0.62 | 0.60 | 1.49 | a | 0.54 | 0.85 | 0.25 | 0.72 | a | 0.29 | 0.30 | 1.49 | b | ||||||||||
1927 | 0.00 | c | 0.23 | 1.13 | a | 0.86 | 0.42 | 0.78 | 0.50 | b | 0.63 | a | 0.60 | 0.51 | 0.40 | b | 0.10 | 1.13 | i | |||||||
1928 | 0.01 | 0.38 | 0.70 | 0.45 | 0.68 | b | 0.90 | a | 0.65 | 0.31 | 0.05 | a | 0.72 | 0.35 | 0.00 | 0.90 | d | |||||||||
1929 | 0.08 | 0.15 | a | 0.40 | g | 1.60 | a | 0.28 | c | 0.18 | a | 0.87 | 0.76 | 1.03 | 0.45 | a | 0.30 | 0.03 | g | 1.60 | u | |||||
1930 | 0.37 | 0.27 | 0.12 | 0.43 | a | 0.73 | a | 0.73 | a | 0.50 | 2.53 | 0.76 | 1.56 | 0.22 | b | 0.03 | 2.53 | e | ||||||||
1931 | 0.10 | b | 0.27 | 0.22 | 0.57 | a | 0.80 | 0.39 | 0.74 | 0.45 | 0.58 | 0.47 | 0.22 | 0.50 | 0.80 | c | ||||||||||
1932 | 0.07 | 0.39 | 0.17 | 0.74 | 0.34 | 1.08 | 0.89 | 0.72 | 0.62 | 0.25 | 0.15 | 0.17 | 1.08 | |||||||||||||
1933 | 0.00 | 0.06 | 0.40 | 1.32 | 1.00 | a | 0.30 | 0.92 | 1.56 | 1.06 | 0.00 | 0.10 | 0.30 | 1.56 | a | |||||||||||
1934 | 0.02 | 0.35 | 0.16 | 0.39 | 0.67 | 0.74 | 0.46 | 1.40 | 0.16 | 0.00 | 0.08 | 0.10 | 1.40 | |||||||||||||
1935 | 0.00 | 0.25 | 0.53 | 1.46 | 1.03 | 0.98 | 0.65 | 0.45 | 1.00 | 0.19 | 0.21 | 0.26 | 1.46 | |||||||||||||
1936 | 0.11 | 0.13 | 0.15 | 0.37 | 0.55 | 0.75 | 0.42 | 0.88 | 0.40 | 0.13 | 0.27 | 0.13 | 0.88 | |||||||||||||
1937 | 0.12 | 0.13 | 0.42 | 0.38 | 0.42 | 1.30 | 2.61 | 0.66 | 0.24 | 0.22 | 0.20 | 0.75 | 2.61 | |||||||||||||
1938 | 0.17 | 0.15 | 0.34 | 0.88 | 0.51 | 0.87 | 0.60 | 0.60 | 2.32 | 0.54 | 0.45 | 0.31 | 2.32 | |||||||||||||
1939 | 0.27 | 0.15 | 0.58 | 0.63 | 0.60 | 0.41 | 0.36 | 0.28 | 0.12 | 0.18 | 0.00 | 0.14 | 0.63 | |||||||||||||
1940 | 0.22 | 0.30 | 0.27 | 1.26 | 0.34 | 0.66 | 0.40 | 0.18 | 0.53 | 0.20 | 0.12 | 0.09 | 1.26 | |||||||||||||
1941 | 0.05 | 0.07 | 0.50 | 0.73 | 0.46 | 1.84 | 0.10 | 0.38 | 0.64 | 0.16 | 0.07 | 0.16 | 1.84 | |||||||||||||
1942 | 0.12 | 0.35 | 0.24 | 1.14 | 1.23 | 0.96 | 0.71 | 0.38 | 0.28 | 0.77 | 0.25 | 0.15 | 1.23 | |||||||||||||
1943 | 0.07 | 0.12 | 0.12 | 0.95 | 1.40 | 0.85 | 0.56 | 0.34 | 0.05 | 0.49 | 0.07 | 0.16 | 1.40 | |||||||||||||
1944 | 0.17 | 0.11 | 0.72 | 0.55 | 1.37 | 0.90 | 0.83 | 0.84 | 0.29 | 0.08 | 0.57 | 0.15 | 1.37 | |||||||||||||
1945 | 0.24 | 0.19 | 0.29 | 0.62 | 1.45 | 1.01 | 0.46 | 1.01 | 0.90 | 0.19 | 0.10 | 0.12 | 1.45 | |||||||||||||
1946 | 0.05 | 0.05 | 0.74 | 0.43 | 0.72 | 0.66 | 0.29 | 0.24 | 0.20 | 0.33 | 0.31 | 0.05 | 0.74 | |||||||||||||
1947 | 0.12 | 0.16 | 0.19 | 0.28 | 1.12 | 2.19 | 0.58 | 0.67 | 0.17 | 0.54 | 0.45 | 0.22 | 2.19 | |||||||||||||
1948 | 0.10 | 0.40 | 0.19 | 0.88 | 0.38 | 0.51 | 0.79 | 0.26 | 0.27 | 0.43 | 0.05 | 0.20 | 0.88 | |||||||||||||
1949 | 0.55 | 0.00 | 0.41 | 0.35 | h | 1.20 | 0.98 | 0.33 | 1.05 | 0.09 | 0.16 | 0.00 | 0.04 | 1.20 | h | |||||||||||
1950 | 0.16 | 0.01 | 0.20 | 0.26 | 0.93 | 0.50 | 0.46 | 0.75 | 0.69 | 0.13 | 0.41 | 0.06 | 0.93 | |||||||||||||
1951 | 0.09 | 0.06 | 0.06 | 0.73 | 0.47 | 0.88 | 1.50 | 0.69 | 0.45 | 1.10 | 0.16 | 0.26 | 1.50 | |||||||||||||
1952 | 0.00 | 0.30 | 0.23 | 0.24 | 1.03 | 0.49 | 0.49 | 0.77 | 0.13 | 0.26 | 0.22 | 0.24 | 1.03 | |||||||||||||
1953 | 0.07 | 0.15 | 0.29 | 0.64 | 0.48 | 0.89 | 2.71 | 0.40 | 0.31 | 0.03 | 0.21 | 0.26 | 2.71 | |||||||||||||
1954 | 0.08 | 0.01 | 0.32 | 0.25 | 2.39 | 0.69 | 0.30 | 0.79 | 0.86 | 0.19 | 0.42 | 0.23 | 2.39 | |||||||||||||
1955 | 0.18 | 0.33 | 0.33 | 1.19 | 1.13 | 0.70 | 0.13 | 1.05 | 1.31 | 0.18 | 0.62 | 0.18 | 1.31 | |||||||||||||
1956 | 0.35 | 0.17 | 0.29 | 1.06 | 0.90 | 0.70 | 0.20 | 0.28 | 0.00 | 0.02 | 0.42 | 0.46 | 1.06 | |||||||||||||
1957 | 0.13 | 0.01 | 0.33 | 0.69 | 1.61 | 1.81 | 2.00 | 0.35 | 0.15 | 0.68 | 0.12 | 0.07 | 2.00 | |||||||||||||
1958 | 0.04 | 0.56 | 0.40 | 0.32 | 0.69 | 1.51 | 1.60 | 0.60 | 0.45 | 0.10 | 0.06 | 0.32 | 1.60 | |||||||||||||
1959 | 0.18 | 0.11 | 0.60 | 0.66 | 0.71 | 0.20 | 0.33 | 0.63 | 1.18 | 0.51 | 0.01 | 0.16 | 1.18 | |||||||||||||
1960 | 0.16 | 0.19 | 0.10 | 0.25 | 0.97 | 0.87 | 0.52 | 1.12 | 0.75 | 0.53 | 0.09 | 0.18 | 1.12 | |||||||||||||
1961 | 0.06 | 0.15 | 0.60 | 0.30 | 0.88 | 1.88 | 0.56 | 0.89 | 0.60 | 0.15 | 0.13 | 0.02 | 1.88 | |||||||||||||
1962 | 0.20 | 0.18 | 0.07 | 0.11 | 1.30 | 0.76 | 1.05 | 0.41 | 0.20 | 0.49 | 0.31 | 0.09 | 1.30 | |||||||||||||
1963 | 0.27 | 0.05 | 0.50 | 0.14 | 0.34 | 1.12 | 0.76 | 1.05 | 0.86 | 1.30 | 0.14 | 0.15 | 1.30 | |||||||||||||
1964 | 0.02 | 0.03 | 0.24 | 0.70 | 0.69 | 0.65 | 0.61 | 0.30 | 0.31 | 0.25 | 0.01 | 0.12 | 0.70 | |||||||||||||
1965 | 0.25 | 0.40 | 0.15 | 0.30 | 1.26 | 1.13 | 0.46 | 1.18 | 0.39 | 0.67 | 0.00 | 0.10 | 1.26 | |||||||||||||
1966 | 0.22 | 0.10 | 0.07 | 0.60 | 0.11 | 1.67 | 0.41 | 1.04 | 2.04 | 0.30 | 0.28 | 0.11 | 2.04 | |||||||||||||
1967 | 0.06 | 0.18 | 0.54 | 0.96 | 1.00 | 0.68 | 0.60 | 0.55 | 0.15 | 0.33 | 0.63 | 0.17 | 1.00 | |||||||||||||
1968 | 0.06 | 0.27 | 0.36 | 0.47 | 1.09 | 0.65 | ----- | z | 0.79 | 0.09 | 0.30 | 0.23 | 0.09 | ----- | z | |||||||||||
1969 | 0.07 | 0.10 | 0.39 | 1.60 | 0.75 | 1.87 | 0.44 | 0.19 | 0.77 | 0.77 | 0.16 | 0.16 | 1.87 | |||||||||||||
1970 | 0.06 | 0.20 | 0.63 | 0.86 | 0.39 | 1.42 | 1.17 | 0.36 | 0.37 | 0.40 | 0.13 | 0.45 | 1.42 | |||||||||||||
1971 | 0.95 | 0.24 | 0.59 | 0.95 | 1.20 | 1.22 | 0.27 | 0.15 | 0.59 | 0.40 | 0.03 | 0.04 | 1.22 | |||||||||||||
1972 | ----- | z | 0.01 | 0.47 | 0.67 | 1.10 | 0.67 | 0.51 | 1.71 | 0.72 | 0.18 | 0.40 | 0.25 | ----- | z | |||||||||||
1973 | 0.31 | 0.04 | 0.73 | 0.51 | 0.38 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.75 | 0.17 | 0.33 | 0.73 | 0.25 | ----- | z | |||||
1980 | 0.46 | 0.20 | 0.50 | 0.36 | 0.50 | 0.30 | 0.84 | 0.51 | 0.52 | 0.26 | 0.07 | 0.04 | 0.84 | |||||||||||||
1981 | 0.18 | 0.12 | 0.47 | 0.35 | 1.08 | 0.53 | 4.67 | 0.70 | 0.17 | 0.30 | 0.08 | 0.07 | 4.67 | |||||||||||||
1982 | 0.12 | 0.04 | 0.21 | 0.65 | 0.55 | 1.55 | 1.41 | 1.63 | 0.78 | 0.51 | 0.42 | 0.30 | 1.63 | |||||||||||||
1983 | 0.02 | 0.02 | 1.04 | 1.06 | 1.13 | 0.90 | 3.92 | 2.11 | 0.20 | a | 0.16 | 0.32 | 0.07 | 3.92 | a | |||||||||||
1984 | 0.16 | 0.16 | 0.30 | 0.72 | 0.52 | 0.56 | 0.89 | 0.53 | 0.37 | 0.98 | 0.04 | 0.42 | 0.98 | |||||||||||||
1985 | 0.12 | 0.00 | 0.10 | 0.35 | 0.27 | 0.37 | 0.63 | 0.29 | 1.19 | 0.24 | 0.35 | 0.32 | 1.19 | |||||||||||||
1986 | 0.37 | 0.22 | 0.20 | 1.05 | 0.50 | 1.75 | 0.67 | 0.23 | 0.20 | 0.58 | 0.17 | 0.13 | 1.75 | |||||||||||||
1987 | 0.07 | 0.48 | 0.23 | 0.42 | 1.00 | 0.30 | 1.12 | 0.68 | 0.79 | 0.24 | 0.19 | 0.20 | 1.12 | |||||||||||||
1988 | 0.59 | 0.11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.17 | 0.18 | 0.35 | 0.67 | 0.78 | 0.91 | 0.86 | 0.72 | 0.57 | 0.40 | 0.24 | 0.20 | 1.51 | |||||||||||||
S.D. | 0.19 | 0.13 | 0.23 | 0.36 | 0.42 | 0.49 | 0.82 | 0.48 | 0.53 | 0.32 | 0.19 | 0.14 | 0.75 | |||||||||||||
SKEW | 2.38 | 0.76 | 1.22 | 0.75 | 1.02 | 0.71 | 2.89 | 1.49 | 1.85 | 1.40 | 1.01 | 1.34 | 2.24 | |||||||||||||
MAX | 0.95 | 0.56 | 1.13 | 1.60 | 2.39 | 2.19 | 4.67 | 2.53 | 2.58 | 1.56 | 0.85 | 0.75 | 4.67 | |||||||||||||
MIN | 0.00 | 0.00 | 0.06 | 0.11 | 0.11 | 0.18 | 0.10 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.63 | |||||||||||||
YRS | 63 | 64 | 61 | 62 | 63 | 62 | 61 | 63 | 63 | 63 | 63 | 62 | 51 |