YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 0.06 | k | 0.00 | 0.00 | k | 0.00 | 0.00 | 0.35 | 0.00 | 0.05 | 0.29 | 0.00 | ----- | z | ||||||||
1950 | 0.13 | 0.24 | 0.25 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.08 | 0.00 | 0.25 | |||||||||||||
1951 | 0.30 | 0.07 | 0.00 | 0.18 | 0.30 | 0.00 | 0.25 | 0.00 | 0.34 | 0.15 | 0.25 | 0.68 | 0.68 | |||||||||||||
1952 | 0.43 | 0.10 | 0.10 | y | ----- | z | 0.00 | 0.00 | 0.34 | 0.00 | 0.90 | 0.00 | 0.54 | 0.58 | ----- | z | ||||||||||
1953 | 0.00 | 0.68 | 0.68 | a | 0.04 | 0.00 | 0.00 | 0.00 | 0.13 | 0.00 | 0.00 | 0.19 | 0.23 | 0.68 | a | |||||||||||
1954 | 0.88 | 0.28 | 0.61 | 0.00 | 0.00 | 0.05 | 0.14 | 0.00 | 0.00 | 0.00 | 0.73 | 0.30 | 0.88 | |||||||||||||
1955 | 0.61 | 0.11 | 0.00 | 0.00 | 0.05 | 0.00 | 0.15 | 0.44 | 0.00 | 0.00 | 0.07 | 0.35 | 0.61 | |||||||||||||
1956 | 1.20 | 0.10 | 0.00 | 0.29 | 0.00 | 0.00 | 0.74 | 0.00 | 0.00 | 0.21 | 0.00 | 0.00 | 1.20 | |||||||||||||
1957 | 0.90 | 0.23 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.30 | 0.25 | 0.90 | |||||||||||||
1958 | 0.33 | 0.83 | 0.39 | 0.75 | 0.00 | 0.00 | 0.00 | 0.44 | 1.08 | 0.15 | ----- | z | ----- | z | ----- | z | ||||||||||
1959 | ----- | z | 0.25 | 0.00 | c | 0.00 | 0.00 | 0.00 | 0.01 | 0.09 | 0.01 | 0.05 | 0.44 | 0.33 | ----- | z | ||||||||||
1960 | 0.11 | 0.54 | 0.00 | 0.00 | 0.00 | 0.00 | 0.49 | 0.00 | 0.43 | 0.18 | 0.26 | 0.30 | 0.54 | |||||||||||||
1961 | 0.08 | 0.00 | 0.29 | 0.00 | 0.06 | 0.00 | 0.00 | 0.21 | 0.00 | 0.07 | 0.09 | 1.10 | 1.10 | |||||||||||||
1962 | 0.54 | 0.52 | 0.15 | 0.00 | 0.00 | 0.00 | 0.11 | 0.00 | 0.28 | 0.02 | 0.03 | 0.13 | 0.54 | |||||||||||||
1963 | 0.28 | 0.53 | 0.23 | 0.11 | 0.00 | 0.00 | 0.00 | 0.54 | 1.35 | 0.64 | 0.53 | 0.05 | 1.35 | |||||||||||||
1964 | 0.23 | 0.01 | ----- | z | ----- | z | 0.01 | 0.00 | 0.07 | 0.03 | ----- | z | ----- | z | ----- | z | 0.07 | ----- | z | |||||||
1965 | 0.06 | 0.02 | 0.15 | 0.26 | 0.00 | ----- | z | 0.15 | 0.13 | 0.01 | 0.04 | 1.31 | 0.70 | ----- | z | |||||||||||
1966 | ----- | z | 0.08 | 0.19 | 0.00 | ----- | z | 0.03 | 0.17 | ----- | z | 0.07 | 0.12 | 0.42 | 0.32 | ----- | z | |||||||||
1967 | 0.12 | 0.00 | 0.00 | 0.73 | 0.00 | 0.00 | 0.47 | 0.25 | 0.29 | 0.00 | 0.22 | 0.24 | 0.73 | |||||||||||||
1968 | ----- | z | 0.03 | 0.54 | 0.00 | 0.00 | 0.00 | 0.34 | 0.03 | 0.00 | 0.01 | 0.05 | 0.23 | ----- | z | |||||||||||
1969 | 0.50 | 1.00 | 0.06 | 0.05 | 0.37 | 0.15 | 0.11 | 0.00 | 0.00 | 0.00 | 0.21 | 0.02 | 1.00 | |||||||||||||
1970 | 0.09 | ----- | z | 0.91 | 0.16 | 0.00 | 0.04 | 0.18 | 0.21 | 0.00 | 0.01 | 0.58 | 0.45 | ----- | z | |||||||||||
1971 | 0.07 | 0.05 | 0.00 | 0.21 | 0.08 | 0.00 | 0.10 | 0.25 | 0.00 | 0.23 | 0.00 | 0.40 | 0.40 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.07 | 0.56 | 2.10 | 0.30 | 0.24 | 0.65 | 0.54 | 2.10 | |||||||||||||
1973 | 0.50 | 0.86 | 0.52 | 0.00 | ----- | z | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.35 | 0.28 | 0.23 | 0.13 | 0.04 | 0.01 | 0.18 | 0.22 | 0.21 | 0.10 | 0.33 | 0.32 | 0.86 | |||||||||||||
S.D. | 0.33 | 0.31 | 0.27 | 0.21 | 0.10 | 0.03 | 0.21 | 0.43 | 0.38 | 0.15 | 0.31 | 0.27 | 0.46 | |||||||||||||
SKEW | 1.06 | 0.98 | 1.04 | 2.12 | 2.67 | 2.89 | 1.24 | 3.59 | 1.92 | 2.31 | 1.47 | 1.06 | 1.27 | |||||||||||||
MAX | 1.20 | 1.00 | 0.91 | 0.75 | 0.37 | 0.15 | 0.74 | 2.10 | 1.35 | 0.64 | 1.31 | 1.10 | 2.10 | |||||||||||||
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 | 0.25 | |||||||||||||
YRS | 21 | 23 | 22 | 23 | 22 | 24 | 25 | 24 | 24 | 23 | 22 | 23 | 15 |