YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1917 | 0.59 | 0.06 | x | 0.05 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1918 | ----- | z | ----- | z | 1.00 | x | ----- | 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 | 0.19 | 0.36 | 0.35 | 0.36 | 0.00 | 0.00 | 0.00 | 0.03 | 0.24 | 0.47 | 0.02 | 1.39 | 1.39 | |||||||||||||
1946 | 0.03 | 0.52 | 0.54 | 0.12 | 0.15 | 0.00 | 0.35 | 0.00 | 0.04 | 0.08 | 1.49 | 1.33 | 1.49 | |||||||||||||
1947 | 0.28 | 0.05 | 0.42 | 0.24 | 0.05 | 0.00 | 0.00 | 0.19 | 0.00 | 0.04 | 0.00 | 1.16 | 1.16 | |||||||||||||
1948 | 0.00 | 0.46 | 0.42 | 0.06 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | 0.38 | 0.00 | 0.59 | 0.59 | |||||||||||||
1949 | 0.45 | h | 0.24 | 0.20 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.39 | 0.45 | h | |||||||||||
1950 | 0.16 | 0.21 | 0.63 | 0.20 | 0.28 | 0.00 | 0.02 | 0.00 | 0.04 | 0.01 | 0.01 | 0.00 | 0.63 | |||||||||||||
1951 | 0.26 | 0.05 | 0.28 | 0.13 | a | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | d | 0.09 | 0.82 | 0.82 | e | ||||||||||
1952 | 1.60 | 0.31 | 1.85 | 0.66 | 0.00 | 0.00 | 0.04 | 0.00 | 0.09 | 0.00 | 0.68 | 0.70 | 1.85 | |||||||||||||
1953 | 0.04 | 0.13 | 0.12 | 0.18 | a | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.11 | 0.22 | a | |||||||||||
1954 | 1.56 | 0.55 | 0.33 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.93 | 0.15 | 1.56 | |||||||||||||
1955 | 0.58 | 0.36 | 0.00 | 0.08 | 0.53 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | g | 0.19 | 0.47 | 0.58 | g | |||||||||||
1956 | 1.08 | 0.12 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 | 1.08 | |||||||||||||
1957 | 1.52 | 0.38 | 0.38 | 0.11 | 0.07 | 0.00 | 0.00 | 0.00 | 0.06 | 0.61 | 0.23 | 0.98 | 1.52 | |||||||||||||
1958 | 0.68 | 1.12 | 0.43 | 0.77 | 0.17 | 0.00 | 0.00 | 0.00 | 0.13 | 0.07 | 0.23 | 0.00 | 1.12 | |||||||||||||
1959 | 0.50 | 0.77 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 0.00 | 0.53 | 0.77 | |||||||||||||
1960 | 0.41 | 0.73 | 0.01 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.42 | 0.00 | 0.73 | |||||||||||||
1961 | 0.24 | 0.00 | 0.15 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.83 | 0.45 | 0.83 | |||||||||||||
1962 | 0.31 | 1.10 | 0.13 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.10 | |||||||||||||
1963 | 0.00 | 0.28 | 0.44 | 0.30 | 0.00 | 0.49 | 0.00 | 0.12 | 0.70 | 0.83 | 0.43 | 0.00 | 0.83 | |||||||||||||
1964 | 0.58 | 0.07 | 0.14 | 0.31 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.74 | 0.06 | 0.74 | |||||||||||||
1965 | 0.17 | 0.02 | 0.26 | 0.61 | 0.00 | 0.00 | 0.15 | 0.22 | 0.18 | 0.00 | 1.95 | 1.31 | 1.95 | |||||||||||||
1966 | 0.53 | 0.67 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.03 | 1.41 | 0.36 | 1.41 | |||||||||||||
1967 | 0.79 | 0.00 | 0.47 | 0.42 | 0.00 | 0.00 | 0.00 | 0.57 | 0.16 | 0.00 | 1.24 | 0.31 | 1.24 | |||||||||||||
1968 | 0.22 | 0.32 | 0.55 | 0.24 | 0.00 | 0.00 | 0.58 | 0.41 | 0.00 | 0.07 | 0.10 | 0.10 | 0.58 | |||||||||||||
1969 | 0.87 | 0.78 | 0.08 | 0.19 | 0.07 | 0.10 | 0.10 | 0.00 | 0.02 | 0.03 | 0.72 | 0.00 | 0.87 | |||||||||||||
1970 | 0.07 | 0.35 | 0.32 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.52 | 0.72 | 1.52 | |||||||||||||
1971 | 0.01 | 0.10 | 0.20 | 0.16 | 0.25 | 0.00 | 0.00 | 0.03 | 0.12 | 0.07 | 0.00 | 1.42 | 1.42 | |||||||||||||
1972 | 0.00 | 0.01 | 0.00 | 0.05 | 0.00 | 0.62 | 0.00 | 0.01 | 0.00 | 0.03 | y | ----- | z | ----- | z | ----- | z | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.47 | 0.36 | 0.31 | 0.19 | 0.08 | 0.05 | 0.05 | 0.06 | 0.08 | 0.14 | 0.51 | 0.49 | 1.11 | |||||||||||||
S.D. | 0.48 | 0.32 | 0.35 | 0.21 | 0.12 | 0.15 | 0.13 | 0.14 | 0.15 | 0.23 | 0.58 | 0.49 | 0.44 | |||||||||||||
SKEW | 1.17 | 0.89 | 2.98 | 1.35 | 2.07 | 3.26 | 3.27 | 2.70 | 2.73 | 1.74 | 1.02 | 0.66 | 0.04 | |||||||||||||
MAX | 1.60 | 1.12 | 1.85 | 0.77 | 0.53 | 0.62 | 0.58 | 0.57 | 0.70 | 0.83 | 1.95 | 1.42 | 1.95 | |||||||||||||
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 | 0.22 | |||||||||||||
YRS | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 26 | 27 | 27 | 24 |