| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1905 | 9999.00 | z | 0.09 | u | 0.14 | 0.02 | 0.21 | 0.64 | 0.00 | 0.00 | 0.18 | 0.75 | 0.28 | 0.24 | 0.75 | |||||||||||
| 1906 | 0.28 | 0.43 | 0.13 | 0.04 | 0.35 | 0.28 | 0.00 | 0.18 | 0.50 | 0.13 | 1.01 | 0.48 | r | 1.01 | ||||||||||||
| 1907 | 0.68 | z | 0.25 | 0.75 | 0.10 | 0.58 | 0.23 | 0.06 | 0.26 | 0.20 | 0.06 | 0.14 | 0.49 | w | 0.75 | |||||||||||
| 1908 | 0.12 | 0.12 | 0.21 | 0.03 | 0.20 | 0.25 | 0.60 | 0.10 | 0.00 | 0.62 | y | 0.40 | 0.30 | 0.62 | ||||||||||||
| 1909 | 0.66 | 0.20 | 0.10 | 0.05 | 0.08 | 0.21 | 0.23 | 0.00 | 0.03 | 0.25 | 0.63 | 0.46 | 0.66 | |||||||||||||
| 1910 | 0.33 | 0.15 | 0.64 | 0.23 | 0.26 | 0.26 | 0.00 | 0.00 | 0.60 | 0.16 | 0.26 | 0.22 | 0.64 | |||||||||||||
| 1911 | 0.09 | z | 0.32 | 0.22 | 0.00 | 0.16 | 0.25 | 0.00 | 0.05 | 1.03 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 1.03 | |||||||||
| 1912 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.30 | 0.30 | ||
| 1913 | 0.70 | w | 0.18 | 0.05 | 0.26 | 0.25 | z | 0.54 | 0.00 | 0.02 | 0.08 | 0.76 | 0.32 | 0.35 | 0.76 | |||||||||||
| 1914 | 0.58 | 0.37 | 0.03 | 0.30 | 0.37 | 0.13 | 0.05 | 0.00 | 0.30 | 0.58 | 0.25 | 0.33 | 0.58 | |||||||||||||
| 1915 | 0.22 | 0.37 | 0.25 | 0.37 | 0.18 | 0.55 | 1.08 | 0.00 | 0.07 | 0.05 | 0.50 | 0.47 | 1.08 | |||||||||||||
| 1916 | 0.32 | 0.70 | 0.38 | 0.41 | 0.30 | 0.23 | 9999.00 | z | 0.17 | 0.00 | 0.09 | 0.40 | 0.25 | 0.70 | ||||||||||||
| 1917 | 0.31 | 0.17 | 0.24 | 0.47 | 0.15 | 0.06 | 0.02 | 0.00 | 0.10 | 0.00 | 0.67 | 0.51 | 0.67 | |||||||||||||
| 1918 | 0.31 | 0.34 | 0.20 | 0.12 | 0.66 | 0.20 | 0.15 | 0.32 | 0.12 | 0.33 | 0.40 | 0.30 | 0.66 | |||||||||||||
| 1919 | 0.47 | 0.43 | 0.52 | 0.20 | 0.30 | 0.00 | 0.04 | 9999.00 | z | 0.28 | 0.33 | 0.51 | 0.32 | 0.52 | ||||||||||||
| 1920 | 0.12 | 0.00 | 0.20 | 0.65 | 0.27 | 0.32 | 9999.00 | z | 0.57 | 0.52 | 0.53 | 0.45 | 0.40 | 0.65 | ||||||||||||
| 1921 | 0.42 | 0.45 | 0.20 | 0.23 | 0.52 | 0.20 | 0.00 | 0.00 | a | 0.25 | 0.20 | 1.00 | 0.55 | 1.00 | ||||||||||||
| 1922 | 0.16 | 0.45 | 0.82 | 0.41 | 0.06 | 0.50 | 0.00 | 0.07 | 0.22 | 0.33 | 0.35 | 0.33 | 0.82 | |||||||||||||
| 1923 | 0.45 | 0.17 | 0.00 | 0.56 | 0.17 | 0.57 | 0.40 | 0.10 | 0.36 | 0.50 | 0.22 | 0.40 | 0.57 | |||||||||||||
| 1924 | 0.20 | 0.34 | 0.40 | 0.00 | 0.00 | 0.18 | 0.37 | 0.30 | 0.50 | 0.18 | 0.45 | 0.30 | 0.50 | |||||||||||||
| 1925 | 0.25 | 0.21 | 0.09 | 0.43 | 0.25 | 0.20 | 0.00 | 0.05 | 0.46 | 0.12 | 0.45 | 0.65 | 0.65 | |||||||||||||
| 1926 | 0.42 | 0.34 | 0.04 | z | 0.06 | 0.27 | 0.70 | 0.00 | 0.06 | 0.23 | 0.42 | 0.70 | 0.53 | 0.70 | ||||||||||||
| 1927 | 0.33 | 0.44 | 0.42 | 0.04 | 0.20 | 0.03 | 0.02 | 0.10 | 0.34 | 1.02 | 0.40 | 0.21 | 1.02 | |||||||||||||
| 1928 | 0.80 | v | 0.09 | 0.32 | 0.14 | 0.17 | 0.14 | z | 0.10 | z | 0.15 | z | 0.15 | z | 0.36 | 0.45 | 0.80 | w | 0.80 | |||||||
| 1929 | 0.37 | 0.05 | z | 0.07 | 0.15 | 0.37 | 0.18 | 0.00 | 0.03 | 0.25 | z | 0.14 | 0.04 | z | 0.35 | 0.37 | ||||||||||
| 1930 | 0.36 | 0.30 | 0.14 | 0.07 | w | 0.44 | z | 0.10 | z | 0.02 | 0.05 | 0.12 | z | 0.27 | y | 0.31 | 0.23 | 0.44 | ||||||||
| 1931 | 0.37 | r | 0.18 | 0.37 | 0.17 | w | 0.00 | z | 0.36 | 0.00 | 0.00 | 0.07 | 0.35 | 0.40 | r | 0.58 | n | 0.58 | ||||||||
| 1932 | 0.33 | 0.63 | 0.23 | 0.22 | 0.24 | 0.06 | 0.07 | 0.00 | 0.00 | 0.40 | 0.35 | 0.35 | 0.63 | |||||||||||||
| 1933 | 0.22 | 0.76 | 0.37 | 0.23 | 0.30 | 0.13 | 0.06 | 0.08 | 0.31 | 0.37 | 0.51 | 0.60 | 0.76 | |||||||||||||
| 1934 | 0.26 | 0.14 | 0.37 | 0.13 | 0.21 | 0.03 | 0.00 | 0.42 | 0.24 | 0.54 | 0.30 | 0.26 | x | 0.54 | ||||||||||||
| 1935 | 0.09 | 0.37 | 0.25 | 0.57 | 0.06 | 0.27 | 0.17 | 0.18 | z | 0.21 | z | 0.22 | 0.17 | 0.25 | 0.57 | |||||||||||
| 1936 | 0.64 | 0.50 | 0.04 | 0.10 | z | 0.12 | z | 0.20 | 0.02 | z | 9999.00 | z | 9999.00 | z | 0.00 | 0.14 | 0.43 | 0.64 | ||||||||
| 1937 | 0.26 | 0.27 | 0.30 | 0.25 | 0.35 | z | 0.32 | 0.31 | z | 0.19 | 0.07 | z | 0.62 | z | 0.60 | u | 0.50 | 0.62 | ||||||||
| 1938 | 0.23 | 0.42 | 0.30 | u | 0.15 | y | 0.24 | 0.88 | 0.05 | 0.02 | 0.01 | 0.32 | 0.40 | 0.36 | 0.88 | |||||||||||
| 1939 | 0.21 | 0.40 | 0.18 | 0.04 | 0.02 | 0.15 | 0.12 | 9999.00 | z | 9999.00 | z | 0.26 | 0.00 | 0.38 | r | 0.40 | ||||||||||
| 1940 | 0.56 | 0.65 | v | 0.30 | x | 0.23 | 0.15 | 0.07 | 0.32 | 0.00 | z | 0.21 | 0.53 | 0.51 | 0.45 | 0.65 | ||||||||||
| 1941 | 0.43 | 0.22 | 0.22 | 0.13 | 0.42 | 0.60 | 0.20 | 0.50 | 0.89 | x | 0.10 | 0.58 | 0.30 | 0.89 | ||||||||||||
| 1942 | 0.27 | 0.24 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.78 | z | 0.02 | 0.02 | 0.00 | 0.32 | 0.25 | 0.38 | 0.78 | |||||||||
| 1943 | 0.10 | 0.40 | 0.41 | 0.62 | 0.21 | 0.16 | 0.00 | 0.09 | 0.00 | 0.53 | 9999.00 | z | 0.06 | 0.62 | ||||||||||||
| 1944 | 0.24 | 0.14 | 0.27 | 0.62 | 0.29 | 0.61 | 0.00 | 0.01 | 0.09 | 0.09 | 0.46 | 0.42 | 0.62 | |||||||||||||
| 1945 | 0.54 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.13 | 0.00 | 0.12 | 0.11 | 0.30 | 0.15 | z | 9999.00 | z | 0.54 | |||||||
| 1946 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.30 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.30 | ||
| 1947 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.20 | y | 0.20 | |
| 1948 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.85 | 0.28 | 0.09 | 0.11 | 0.25 | 0.40 | 0.90 | 0.90 | ||||||||
| 1949 | 0.06 | 0.30 | 0.30 | 0.01 | 0.15 | 0.00 | 0.00 | 0.00 | 0.41 | 0.16 | 0.70 | 0.16 | 0.70 | |||||||||||||
| 1950 | 0.20 | d | 0.37 | 0.21 | 0.17 | 0.08 | 0.91 | 0.08 | 0.01 | 0.00 | 0.43 | 0.25 | 9999.00 | z | 0.91 | |||||||||||
| 1951 | 0.29 | 0.20 | 0.07 | 0.33 | 0.51 | 0.69 | 0.11 | 0.05 | 0.24 | 0.23 | 0.34 | 0.15 | 0.69 | |||||||||||||
| 1952 | 0.14 | 0.42 | 0.21 | 0.04 | 0.41 | 0.23 | 0.00 | 0.00 | 0.06 | 0.00 | 0.15 | 0.26 | 0.42 | |||||||||||||
| 1953 | 0.93 | 0.15 | 0.28 | 0.52 | 0.17 | 0.21 | 0.00 | 0.26 | c | 0.00 | 0.25 | 0.41 | 0.35 | 0.93 | ||||||||||||
| 1954 | 0.34 | 0.17 | 0.61 | 0.17 | 0.24 | 0.14 | 0.32 | 0.00 | 0.35 | 0.37 | 0.19 | 0.16 | 0.61 | |||||||||||||
| 1955 | 0.21 | 0.09 | 0.21 | 0.25 | 0.16 | 0.21 | 0.31 | 0.00 | 0.21 | 0.84 | 0.58 | j | 0.47 | 0.84 | ||||||||||||
| 1956 | 0.59 | 0.65 | 0.11 | 0.00 | 0.27 | 0.25 | 0.17 | 0.21 | 0.07 | 0.61 | A | 0.17 | 0.32 | 0.65 | ||||||||||||
| 1957 | 0.18 | 0.11 | 0.39 | 0.21 | 0.51 | 0.43 | 0.14 | 0.20 | A | 0.40 | 2.00 | 0.35 | 0.31 | 2.00 | ||||||||||||
| 1958 | 0.51 | 0.31 | 0.20 | 0.22 | 0.68 | 0.12 | 0.08 | 0.02 | 0.05 | 0.08 | 0.20 | A | 0.38 | 0.68 | ||||||||||||
| 1959 | 0.65 | 0.42 | 0.23 | 0.12 | 0.22 | 0.24 | 0.09 | 0.08 | 0.61 | A | 0.47 | A | 0.22 | 0.18 | 0.65 | |||||||||||
| 1960 | 0.22 | 0.16 | 0.26 | 0.40 | 0.29 | 0.30 | 0.00 | 0.06 | A | 0.19 | 0.27 | A | 0.78 | A | 0.26 | 0.40 | ||||||||||
| 1961 | 0.17 | 0.89 | 0.27 | 0.22 | 0.78 | 0.21 | 0.09 | 0.16 | 0.36 | 9999.00 | z | 0.37 | 0.38 | 0.89 | ||||||||||||
| 1962 | 0.20 | 0.21 | 0.18 | 0.48 | 0.36 | 0.12 | 0.00 | 0.25 | 0.19 | 1.09 | A | 0.64 | A | 0.32 | 0.48 | |||||||||||
| 1963 | 0.20 | 0.52 | 0.25 | 0.32 | 0.65 | 0.21 | 0.16 | 0.14 | 0.00 | 0.07 | 0.65 | 0.65 | 0.65 | |||||||||||||
| 1964 | 0.39 | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 9999.00 | z | 0.39 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.33 | 0.32 | 0.27 | 0.24 | 0.29 | 0.30 | 0.12 | 0.11 | 0.22 | 0.37 | 0.41 | 0.36 | 0.73 | |||||||||||||
| S.D. | 0.18 | 0.18 | 0.17 | 0.18 | 0.18 | 0.23 | 0.19 | 0.13 | 0.21 | 0.34 | 0.21 | 0.15 | 0.30 | |||||||||||||
| SKEW | 1.07 | 0.91 | 1.24 | 0.60 | 0.94 | 1.13 | 3.05 | 1.67 | 1.39 | 2.48 | 0.85 | 1.03 | 2.84 | |||||||||||||
| MAX | 0.93 | 0.89 | 0.82 | 0.65 | 0.78 | 0.91 | 1.08 | 0.57 | 1.03 | 2.00 | 1.01 | 0.90 | 2.00 | |||||||||||||
| MIN | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.40 | |||||||||||||
| NO YRS | 50 | 51 | 50 | 50 | 48 | 53 | 51 | 50 | 48 | 51 | 49 | 48 | 27 | |||||||||||||