YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | 0.18 | 0.11 | 0.91 | 0.41 | a | 0.82 | 0.23 | 0.45 | ----- | z | ----- | z | ----- | z | ||||||
1919 | 0.70 | 0.21 | 0.56 | 0.02 | 0.15 | ----- | z | ----- | z | ----- | z | 1.40 | ----- | 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 | 0.75 | 0.10 | 0.30 | ----- | z | |||
1940 | 0.29 | 0.40 | 0.22 | 0.09 | 0.34 | 0.30 | ----- | z | 0.73 | 0.28 | 0.27 | ----- | z | 0.42 | ----- | z | ||||||||||
1941 | 0.29 | 0.20 | 0.49 | 0.30 | 1.25 | 0.11 | 0.24 | ----- | z | ----- | z | ----- | z | 0.00 | 0.18 | ----- | z | |||||||||
1942 | 0.00 | 0.05 | 0.08 | 0.28 | 0.00 | 0.00 | 1.21 | 0.20 | 0.26 | ----- | z | 0.00 | ----- | z | ----- | z | ||||||||||
1943 | ----- | z | 0.06 | 0.40 | w | 0.15 | 0.26 | 0.30 | ----- | z | 0.61 | 0.28 | 0.30 | 0.33 | 0.00 | ----- | z | |||||||||
1944 | 0.10 | 0.15 | 0.07 | 0.09 | 0.77 | 0.40 | 0.63 | w | 0.82 | 0.33 | ----- | z | 0.25 | ----- | z | ----- | z | |||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.60 | 0.11 | 0.71 | 0.00 | 0.26 | ----- | z | |||||
1946 | 0.45 | 0.12 | ----- | z | ----- | z | ----- | z | ----- | z | 0.42 | ----- | z | 0.71 | 0.00 | c | 0.85 | 0.15 | ----- | z | ||||||
1947 | ----- | z | ----- | z | 0.16 | 0.25 | ----- | z | 0.00 | 0.41 | ----- | z | 0.31 | 0.05 | j | ----- | z | 0.35 | ----- | z | ||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.45 | 0.47 | 2.28 | 0.40 | 1.00 | d | 0.14 | 0.25 | ----- | z | ||||||
1949 | 0.45 | d | 0.23 | f | 0.62 | 0.10 | 0.10 | d | 0.27 | 0.04 | y | 0.37 | g | 0.55 | 0.50 | 0.00 | ----- | z | ----- | z | ||||||
1950 | ----- | z | 0.38 | 0.10 | 0.26 | h | 0.00 | 0.03 | 1.20 | 0.11 | 0.49 | a | 0.00 | 0.00 | 0.00 | ----- | z | |||||||||
1951 | 0.32 | 0.10 | 0.13 | 0.43 | 0.25 | 0.00 | 0.30 | 0.79 | e | 0.08 | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | ----- | z | |
1959 | 0.22 | 0.01 | 0.16 | 0.19 | 0.02 | 0.40 | 0.20 | 1.27 | 0.01 | 0.30 | 0.05 | 0.10 | 1.27 | |||||||||||||
1960 | 0.08 | 0.15 | 0.28 | 0.00 | 0.60 | 0.25 | 0.80 | 0.13 | 0.10 | 1.30 | 0.00 | 0.20 | 1.30 | |||||||||||||
1961 | 0.15 | 0.28 | 0.45 | a | 0.45 | 0.00 | 0.10 | b | 0.90 | 0.40 | 0.21 | 0.95 | 0.30 | 0.80 | 0.95 | c | ||||||||||
1962 | 0.25 | 0.00 | ----- | z | 0.10 | 0.00 | 0.10 | 0.30 | 0.40 | 0.40 | 0.20 | 0.10 | 0.21 | ----- | z | |||||||||||
1963 | 0.20 | 0.53 | 0.04 | 0.00 | 0.00 | 0.10 | 0.40 | 0.50 | 0.42 | 0.65 | 0.40 | 0.01 | 0.65 | |||||||||||||
1964 | 0.06 | ----- | z | 0.57 | 0.30 | 0.30 | 0.04 | 0.90 | 1.12 | 1.00 | 0.00 | 0.27 | 0.20 | ----- | z | |||||||||||
1965 | 0.20 | 0.33 | ----- | z | 0.38 | 0.37 | 1.22 | a | 0.69 | 0.76 | 0.45 | 0.36 | 0.45 | 0.33 | a | ----- | z | |||||||||
1966 | 0.07 | ----- | z | ----- | z | 0.07 | 0.00 | 0.30 | 1.21 | 0.60 | 1.10 | 0.00 | 0.00 | 0.08 | ----- | z | ||||||||||
1967 | 0.03 | 0.09 | 0.20 | 0.00 | 0.13 | 0.35 | 1.43 | 0.93 | 0.82 | 0.03 | 0.12 | 1.20 | 1.43 | |||||||||||||
1968 | 0.02 | 0.02 | 0.18 | 0.12 | 0.10 | 0.00 | 0.45 | 0.55 | 0.55 | 0.75 | 0.29 | 0.04 | 0.75 | |||||||||||||
1969 | 0.02 | 0.02 | 0.06 | 0.02 | 0.65 | 0.17 | 0.67 | 0.72 | 0.85 | 0.28 | 0.17 | 0.18 | 0.85 | |||||||||||||
1970 | 0.04 | 0.02 | 0.08 | 0.17 | 0.21 | 0.44 | 0.31 | 0.50 | 0.09 | 0.01 | b | 0.45 | 0.11 | 0.50 | b | |||||||||||
1971 | 0.08 | 0.12 | 0.00 | 0.29 | 0.42 | 0.07 | 0.42 | 0.59 | 1.30 | 0.80 | 0.06 | 0.08 | c | 1.30 | c | |||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.44 | 0.45 | 0.25 | 0.86 | 0.60 | 0.90 | 0.04 | 0.06 | 0.90 | |||||||||||||
1973 | 0.04 | 0.03 | 0.06 | 0.08 | 0.23 | 0.72 | 0.77 | 0.65 | 0.90 | 0.09 | 0.09 | 0.08 | 0.90 | |||||||||||||
1974 | 0.09 | i | 0.04 | 0.04 | 0.00 | 0.05 | 0.05 | 0.40 | 0.75 | 0.38 | 0.85 | 0.05 | 0.04 | 0.85 | i | |||||||||||
1975 | 0.04 | 0.05 | 0.04 | 0.02 | 0.00 | 0.12 | 1.35 | 0.79 | 0.57 | 0.01 | 0.08 | 0.02 | 1.35 | |||||||||||||
1976 | 0.01 | 0.09 | 0.35 | 0.00 | 0.45 | 0.15 | 0.61 | 0.59 | 0.29 | 0.00 | 1.20 | 0.02 | 1.20 | |||||||||||||
1977 | 0.04 | 0.06 | 0.00 | 0.20 | 0.30 | 0.22 | 1.09 | 1.24 | 0.50 | 0.26 | 0.00 | 0.02 | 1.24 | |||||||||||||
1978 | 0.04 | 0.19 | 0.14 | 0.00 | 0.66 | 0.09 | 0.15 | 1.05 | 0.02 | 0.40 | 0.55 | 0.02 | 1.05 | |||||||||||||
1979 | 0.08 | 0.00 | 0.04 | 0.04 | 0.50 | c | 0.36 | 0.90 | 0.95 | 0.00 | 0.04 | 1.10 | 0.08 | 1.10 | c | |||||||||||
1980 | 0.45 | 0.35 | 0.04 | 0.04 | 0.09 | 0.00 | 0.28 | 0.70 | 0.75 | 0.25 | 0.02 | 0.00 | 0.75 | |||||||||||||
1981 | 0.01 | 0.02 | 0.05 | 0.02 | 0.00 | 0.25 | 0.53 | 1.16 | 0.88 | 0.23 | 0.02 | 0.02 | 1.16 | |||||||||||||
1982 | ----- | z | 0.16 | a | 0.02 | 0.39 | ----- | z | 0.00 | 0.30 | 0.45 | 0.48 | 0.00 | 0.14 | 0.08 | ----- | z | |||||||||
1983 | 0.08 | 0.02 | a | 0.04 | 0.08 | 0.80 | 0.90 | 0.71 | 1.40 | 0.80 | 1.00 | 0.32 | 0.02 | e | 1.40 | f | ||||||||||
1984 | 0.06 | 0.01 | 0.75 | b | 0.04 | 0.04 | ----- | z | 0.53 | 0.32 | 0.60 | 0.84 | 0.02 | 0.12 | ----- | z | ||||||||||
1985 | 0.12 | 0.02 | 0.39 | 1.12 | 0.01 | 0.68 | 0.53 | 0.62 | 0.55 | 0.35 | 1.01 | 0.14 | 1.12 | |||||||||||||
1986 | 0.04 | 0.05 | 0.10 | a | 0.14 | 0.52 | 0.44 | 0.75 | 0.57 | 0.75 | 1.02 | 2.00 | 0.20 | 2.00 | a | |||||||||||
1987 | 0.20 | 0.26 | a | 0.22 | b | 0.09 | 0.60 | 0.55 | 0.25 | 0.61 | 0.11 | 0.35 | 0.26 | a | 0.77 | 0.77 | d | |||||||||
1988 | 1.48 | 0.05 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.19 | 0.13 | 0.19 | 0.16 | 0.28 | 0.29 | 0.61 | 0.74 | 0.50 | 0.43 | 0.29 | 0.19 | 1.07 | |||||||||||||
S.D. | 0.27 | 0.13 | 0.20 | 0.21 | 0.29 | 0.29 | 0.35 | 0.39 | 0.34 | 0.38 | 0.42 | 0.25 | 0.33 | |||||||||||||
SKEW | 3.22 | 1.29 | 1.25 | 2.80 | 1.18 | 1.34 | 0.79 | 1.57 | 0.66 | 0.52 | 2.34 | 2.52 | 0.73 | |||||||||||||
MAX | 1.48 | 0.53 | 0.75 | 1.12 | 1.25 | 1.22 | 1.43 | 2.28 | 1.40 | 1.30 | 2.00 | 1.20 | 2.00 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | |||||||||||||
YRS | 36 | 37 | 35 | 39 | 38 | 39 | 37 | 38 | 42 | 38 | 39 | 39 | 21 |