YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 60.29 | 54.52 | 66.77 | 78.74 | 84.10 | 90.68 | 93.84 | 89.97 | 83.35 | 67.90 | 70.13 | 76.39 | a | |||||||||||
1959 | 64.26 | 56.04 | 70.84 | 75.10 | 72.00 | 88.00 | 96.21 | b | 91.29 | 83.73 | 80.26 | 70.60 | 62.42 | 75.90 | ||||||||||||
1960 | 53.10 | 56.10 | 66.68 | 71.67 | 75.77 | 89.77 | 95.87 | 92.42 | 91.50 | 76.87 | 64.53 | 61.80 | a | 74.67 | ||||||||||||
1961 | 65.13 | 64.18 | 62.26 | 72.17 | 71.90 | 88.53 | 94.32 | 92.06 | 84.20 | 77.84 | 64.63 | 58.94 | 74.68 | |||||||||||||
1962 | 59.32 | 55.04 | 55.97 | 74.97 | 70.55 | 82.90 | 90.71 | 94.74 | 89.70 | 79.65 | 72.17 | 65.48 | 74.27 | |||||||||||||
1963 | 56.71 | 67.71 | 60.48 | 61.87 | 74.61 | 76.73 | 92.77 | 91.26 | 88.90 | a | 77.32 | 66.13 | 64.94 | 73.29 | ||||||||||||
1964 | 58.90 | 61.93 | 60.65 | 65.63 | 72.61 | 81.97 | 94.90 | 92.13 | 86.53 | 83.65 | 61.43 | 58.03 | 73.20 | |||||||||||||
1965 | 60.71 | 63.93 | 59.39 | 65.53 | 73.39 | 74.11 | b | 91.94 | 93.94 | 80.77 | 85.48 | 66.17 | 60.17 | b | 72.96 | |||||||||||
1966 | 59.42 | 57.79 | 69.00 | 75.07 | 78.10 | a | 85.93 | 93.29 | 95.71 | 89.27 | 81.19 | 70.77 | 62.23 | 76.48 | ||||||||||||
1967 | 62.19 | 67.00 | 74.64 | q | 63.42 | k | 76.26 | 76.83 | 94.26 | 96.48 | 85.70 | 87.23 | 75.97 | 58.16 | 78.01 | b | ||||||||||
1968 | 62.71 | 66.17 | 73.50 | y | 70.75 | j | 74.74 | 84.60 | 91.06 | 87.90 | 88.53 | 77.81 | 68.57 | 57.90 | 76.00 | b | ||||||||||
1969 | 59.06 | 52.46 | d | 60.47 | a | 68.77 | 78.13 | 75.83 | 91.65 | 97.90 | 90.48 | a | 76.77 | 69.53 | 62.52 | 73.63 | ||||||||||
1970 | 58.81 | 64.56 | a | 64.00 | 66.27 | 76.90 | 84.73 | 96.35 | 95.35 | 86.80 | 74.17 | b | 71.07 | 56.35 | 74.61 | |||||||||||
1971 | 63.03 | 63.15 | a | 67.93 | a | 64.90 | 71.62 | j | 89.06 | l | 90.04 | e | 93.73 | i | 87.97 | 75.19 | 66.97 | 52.81 | 70.22 | c | ||||||
1972 | 65.87 | 66.17 | 75.90 | 73.86 | a | 76.84 | 85.87 | 93.10 | 88.23 | 82.40 | 69.45 | 62.77 | 60.16 | 75.05 | ||||||||||||
1973 | 54.16 | 61.07 | 56.27 | a | 69.70 | 77.35 | 87.63 | 94.41 | b | 93.48 | b | 84.13 | g | 81.37 | d | 64.83 | a | 65.55 | 73.26 | a | ||||||
1974 | 56.68 | 64.07 | 62.39 | 71.73 | 75.40 | a | 88.80 | 92.37 | d | 92.35 | 91.87 | 77.03 | 69.46 | b | 59.81 | 75.16 | ||||||||||
1975 | 62.77 | 59.00 | 59.68 | 55.42 | f | 74.77 | 82.60 | 92.13 | 90.94 | 89.93 | 78.37 | a | ----- | z | ----- | z | 76.69 | c | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.17 | 61.48 | 62.90 | 69.60 | 75.18 | 83.47 | 93.11 | 92.94 | 87.54 | 79.06 | 67.85 | 61.02 | 74.49 | |||||||||||||
S.D. | 3.67 | 4.53 | 5.85 | 4.28 | 2.43 | 4.91 | 1.97 | 2.68 | 3.24 | 4.28 | 3.72 | 4.10 | 1.09 | |||||||||||||
SKEW | -0.28 | -0.45 | 0.61 | -0.15 | -0.33 | -0.62 | 0.19 | -0.14 | -0.63 | -0.07 | 0.25 | 0.24 | 0.22 | |||||||||||||
MAX | 65.87 | 67.71 | 75.90 | 75.10 | 78.74 | 89.77 | 96.35 | 97.90 | 91.87 | 87.23 | 75.97 | 70.13 | 76.48 | |||||||||||||
MIN | 53.10 | 52.46 | 54.52 | 61.87 | 70.55 | 74.11 | 90.04 | 87.90 | 80.77 | 69.45 | 61.43 | 52.81 | 72.96 | |||||||||||||
YRS | 17 | 18 | 16 | 15 | 17 | 17 | 18 | 17 | 17 | 18 | 17 | 17 | 12 |