YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.41 | 0.13 | 0.24 | 0.36 | ----- | z | ||||
1940 | ----- | z | 0.34 | 0.21 | 0.40 | 1.11 | 0.16 | 0.36 | 0.08 | 0.70 | 0.09 | 1.28 | 0.09 | ----- | z | |||||||||||
1941 | 0.28 | 0.05 | 0.84 | 0.69 | 1.25 | 0.94 | 0.58 | 1.15 | 1.42 | 0.57 | 0.11 | 0.75 | 1.42 | |||||||||||||
1942 | 0.13 | 0.08 | 0.72 | 2.16 | 0.60 | 0.68 | 0.54 | 0.60 | 2.05 | 1.05 | 0.14 | 2.42 | 2.42 | |||||||||||||
1943 | 0.04 | 0.13 | 0.03 | 0.54 | 0.41 | 0.74 | 1.30 | 0.77 | 0.15 | 0.01 | 0.15 | 0.49 | 1.30 | |||||||||||||
1944 | 0.61 | a | 0.13 | 0.41 | a | 1.65 | 1.26 | 0.85 | 0.39 | 0.58 | 0.16 | 1.00 | 0.60 | 0.33 | 1.65 | b | ||||||||||
1945 | 0.55 | 0.50 | 0.23 | 0.57 | 0.56 | 0.30 | 0.72 | ----- | z | 0.54 | 1.16 | a | 0.10 | 0.04 | ----- | z | ||||||||||
1946 | 0.12 | 0.60 | ----- | z | 0.50 | 0.40 | 0.65 | 0.18 | 1.14 | 1.22 | 0.93 | 1.20 | 0.04 | ----- | z | |||||||||||
1947 | 0.50 | 0.33 | 0.61 | a | 0.57 | 0.50 | 0.50 | 1.16 | 0.90 | 0.37 | 0.15 | 0.10 | 0.45 | 1.16 | a | |||||||||||
1948 | 0.21 | 0.24 | 0.84 | 0.15 | 1.02 | 1.35 | 0.38 | 0.92 | 1.73 | 0.03 | 0.27 | 0.19 | 1.73 | |||||||||||||
1949 | 0.15 | 0.06 | 0.31 | 0.59 | 1.58 | 3.20 | 0.72 | 1.12 | 0.83 | 0.27 | 0.24 | 0.16 | 3.20 | |||||||||||||
1950 | 0.22 | 0.13 | 0.06 | 0.29 | 0.58 | 0.21 | 1.07 | 0.87 | 1.15 | 0.40 | 0.10 | 0.21 | 1.15 | |||||||||||||
1951 | 0.65 | 0.16 | 0.53 | 0.68 | 0.83 | 3.65 | 1.14 | 1.10 | 0.11 | 0.39 | 0.21 | 0.10 | 3.65 | |||||||||||||
1952 | 0.18 | 0.84 | 0.58 | 0.72 | 0.59 | 0.04 | 0.39 | 0.10 | 1.61 | 0.00 | 0.41 | 0.22 | 1.61 | |||||||||||||
1953 | 0.30 | 0.19 | 0.12 | 0.41 | 0.27 | 0.98 | 3.20 | 1.05 | 0.43 | 0.14 | 0.57 | 0.40 | 3.20 | |||||||||||||
1954 | 0.25 | 0.24 | 0.24 | 0.10 | 0.69 | 0.04 | 1.25 | 0.56 | 0.28 | 0.84 | 0.10 | 0.80 | 1.25 | |||||||||||||
1955 | 0.10 | 0.31 | 0.68 | 0.80 | 2.09 | 0.15 | 0.60 | 1.20 | 0.78 | 0.12 | 0.25 | 0.00 | a | 2.09 | a | |||||||||||
1956 | 0.10 | 0.50 | 0.39 | 0.57 | 0.25 | 1.63 | 0.65 | 0.53 | 0.00 | 0.05 | 0.45 | 0.03 | c | 1.63 | c | |||||||||||
1957 | 0.05 | 0.00 | 1.24 | a | 1.52 | 2.08 | 0.52 | 0.55 | 0.40 | 0.32 | 0.81 | 0.49 | a | 0.07 | 2.08 | b | ||||||||||
1958 | 0.36 | 0.14 | 0.26 | 0.30 | 1.16 | 0.46 | 0.60 | 1.76 | 0.36 | 0.30 | 0.35 | 0.63 | a | 1.76 | a | |||||||||||
1959 | 0.62 | 0.05 | 0.90 | 0.47 | 0.81 | 0.07 | 0.45 | 0.69 | 0.40 | 0.87 | 0.35 | 0.71 | 0.90 | |||||||||||||
1960 | 1.12 | 0.57 | 0.37 | 0.95 | 0.00 | 0.24 | 1.85 | 0.44 | 1.83 | 1.83 | 0.05 | 0.85 | a | 1.85 | a | |||||||||||
1961 | 0.05 | 0.75 | 0.59 | 0.65 | 0.75 | 0.66 | 0.76 | 0.39 | 0.55 | 0.45 | 0.61 | 0.14 | 0.76 | |||||||||||||
1962 | 0.28 | 0.33 | 0.22 | 0.35 | 0.35 | 0.75 | 1.10 | 0.11 | 0.09 | 0.20 | 0.52 | 0.14 | 1.10 | |||||||||||||
1963 | 0.05 | 0.60 | 0.20 | 0.00 | 0.19 | 0.53 | 0.45 | 1.27 | 1.02 | 0.18 | 0.10 | 0.16 | 1.27 | |||||||||||||
1964 | 0.22 | 0.76 | 0.04 | 0.46 | 1.02 | 0.08 | 0.30 | 0.77 | ----- | z | 0.00 | 0.65 | 0.15 | ----- | z | |||||||||||
1965 | 0.20 | 0.12 | 0.00 | 0.37 | 0.72 | 2.20 | 1.00 | 0.62 | 0.80 | 0.62 | 0.00 | 0.10 | 2.20 | |||||||||||||
1966 | 0.54 | 0.16 | 0.28 | 0.25 | 1.25 | 0.48 | 1.35 | 0.50 | 2.50 | 0.70 | 0.00 | 0.20 | 2.50 | |||||||||||||
1967 | 0.30 | 0.00 | 0.19 | 0.50 | 0.46 | 0.74 | 0.50 | 0.82 | 0.25 | 0.45 | 0.15 | 0.48 | c | 0.82 | c | |||||||||||
1968 | 0.13 | 0.12 | 0.48 | 0.58 | 0.70 | 0.30 | 0.78 | 0.85 | 0.25 | 0.52 | 0.41 | 0.20 | 0.85 | |||||||||||||
1969 | 0.11 | 0.26 | 0.56 | 2.15 | 1.45 | 2.46 | 0.75 | 0.20 | 0.35 | 0.68 | 0.35 | 0.21 | 2.46 | |||||||||||||
1970 | 0.05 | 0.05 | 0.30 | 0.33 | b | 0.21 | 0.76 | 0.42 | 0.90 | 0.90 | 0.72 | 0.36 | 0.00 | 0.90 | b | |||||||||||
1971 | 0.18 | 0.20 | 0.20 | 0.65 | 1.95 | 0.19 | 0.86 | ----- | z | 0.97 | 0.70 | 0.52 | 0.15 | ----- | z | |||||||||||
1972 | 0.14 | 0.13 | 0.28 | 0.14 | 0.29 | 0.37 | 0.50 | 0.10 | 0.75 | 0.18 | 0.60 | 0.10 | 0.75 | |||||||||||||
1973 | 0.80 | 0.00 | 1.77 | 0.50 | 0.62 | 0.22 | 1.07 | 0.00 | 1.80 | 0.00 | 0.53 | 1.25 | 1.80 | |||||||||||||
1974 | 0.30 | 0.23 | 0.85 | 0.37 | 0.53 | 0.35 | 0.20 | 0.45 | 0.25 | 1.30 | 0.50 | 0.30 | 1.30 | |||||||||||||
1975 | 0.25 | 0.10 | 0.82 | 0.15 | 0.34 | 1.20 | 0.58 | 0.36 | 0.75 | 0.00 | 0.26 | 0.15 | 1.20 | |||||||||||||
1976 | 0.37 | 0.30 | 0.17 | 0.30 | 0.70 | 1.80 | 0.35 | 0.65 | 0.85 | 0.72 | 0.50 | 0.08 | 1.80 | |||||||||||||
1977 | 0.00 | 0.55 | 0.03 | 0.32 | 0.90 | 0.70 | 1.25 | 0.60 | 0.13 | 0.00 | 0.40 | 0.10 | 1.25 | |||||||||||||
1978 | 0.28 | 0.10 | 0.06 | 0.10 | 1.05 | 0.95 | 1.22 | 0.46 | 0.53 | 0.32 | a | 0.10 | 0.13 | 1.22 | a | |||||||||||
1979 | 0.65 | 0.23 | 0.55 | 0.85 | 1.10 | 0.57 | 0.60 | 1.70 | 1.75 | 1.72 | 0.30 | 0.35 | 1.75 | |||||||||||||
1980 | 0.49 | 0.20 | 0.45 | 1.79 | 0.98 | 0.10 | 0.65 | 0.58 | 0.82 | ----- | z | ----- | z | ----- | z | ----- | z | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.30 | 0.26 | 0.44 | 0.62 | 0.82 | 0.80 | 0.80 | 0.70 | 0.78 | 0.50 | 0.36 | 0.33 | 1.66 | |||||||||||||
S.D. | 0.24 | 0.22 | 0.36 | 0.52 | 0.51 | 0.82 | 0.53 | 0.42 | 0.62 | 0.47 | 0.28 | 0.43 | 0.72 | |||||||||||||
SKEW | 1.31 | 1.05 | 1.47 | 1.73 | 0.88 | 1.91 | 2.41 | 0.51 | 0.96 | 1.03 | 1.46 | 3.14 | 1.03 | |||||||||||||
MAX | 1.12 | 0.84 | 1.77 | 2.16 | 2.09 | 3.65 | 3.20 | 1.76 | 2.50 | 1.83 | 1.28 | 2.42 | 3.65 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | |||||||||||||
YRS | 40 | 41 | 40 | 41 | 41 | 41 | 41 | 39 | 41 | 41 | 41 | 41 | 35 |