YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 97.80 | 100.48 | 93.55 | 90.97 | a | 82.32 | 74.57 | g | ----- | z | 93.02 | g | ||||
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | 80.43 | 85.03 | 95.70 | 97.97 | 95.23 | 89.93 | 83.84 | 78.03 | 63.42 | 85.51 | c | |||||||||
1904 | 59.58 | g | 72.72 | 75.84 | 79.37 | ----- | z | 96.41 | a | 96.10 | 92.81 | 88.94 | n | 83.64 | f | 74.97 | 63.07 | b | 81.41 | d | ||||||
1905 | 64.23 | 61.57 | 67.13 | 73.57 | ----- | z | 94.93 | a | 98.06 | 95.42 | 90.57 | 82.45 | 66.57 | 58.35 | 77.53 | a | ||||||||||
1906 | 61.93 | a | 65.41 | a | 73.10 | 79.53 | 87.16 | 98.50 | 95.58 | 90.06 | 92.47 | 83.32 | 72.10 | a | 64.61 | 80.32 | ||||||||||
1907 | 60.13 | 70.43 | 76.23 | 80.63 | 83.06 | 94.30 | 96.16 | 91.19 | 90.53 | 80.03 | 64.93 | 65.10 | 79.39 | |||||||||||||
1908 | 64.65 | 64.17 | 73.74 | 78.80 | 83.77 | 95.97 | 93.84 | 90.90 | 90.00 | 81.61 | 70.40 | 62.03 | 79.16 | |||||||||||||
1909 | 69.00 | 64.14 | 67.16 | 79.20 | 85.42 | 97.53 | 95.94 | 91.26 | 88.77 | 85.55 | 74.30 | 60.10 | 79.86 | |||||||||||||
1910 | 64.93 | b | 68.21 | 80.03 | 82.97 | 92.23 | 98.60 | 97.97 | 96.84 | 93.50 | 84.29 | 74.77 | 69.39 | 83.64 | ||||||||||||
1911 | 67.10 | 64.32 | 75.48 | 80.07 | 89.52 | 96.23 | 90.68 | 95.74 | 89.70 | 83.48 | 68.83 | 57.61 | 79.90 | |||||||||||||
1912 | 66.65 | 69.31 | 68.58 | 72.14 | a | 86.29 | 95.50 | 90.97 | 89.97 | 89.63 | 77.68 | 71.43 | 59.40 | a | 78.13 | |||||||||||
1913 | 60.60 | a | 59.39 | 66.90 | 78.83 | 87.50 | a | 93.80 | 95.90 | 91.26 | 88.90 | a | 84.68 | 73.20 | 52.74 | 77.81 | ||||||||||
1914 | ----- | z | 66.96 | a | 73.97 | a | 81.34 | a | 89.55 | 94.53 | 92.50 | a | 94.03 | 90.87 | 80.00 | 72.75 | b | 56.55 | 81.19 | a | ||||||
1915 | 60.35 | 63.18 | 67.30 | a | 76.27 | 83.23 | 96.33 | 96.67 | a | 96.67 | a | 91.50 | 86.30 | a | 73.67 | 61.74 | 79.43 | |||||||||
1916 | 61.48 | 71.66 | 78.17 | a | 81.33 | 90.06 | 97.80 | 94.26 | 91.61 | 89.83 | 80.81 | 73.87 | 60.94 | 80.98 | ||||||||||||
1917 | 58.39 | 64.64 | 68.74 | 76.40 | 81.81 | 98.47 | 97.90 | a | 95.71 | 92.77 | 86.60 | a | 78.45 | a | 74.19 | 81.17 | ||||||||||
1918 | 61.97 | 71.89 | 73.45 | 79.27 | 85.23 | 98.17 | 96.97 | 94.90 | 94.03 | ----- | z | ----- | z | ----- | z | 83.99 | c | |||||||||
1919 | 64.93 | a | 63.61 | 71.00 | 82.47 | 87.32 | 98.93 | a | 91.68 | 95.55 | 89.67 | 81.93 | b | 70.96 | f | 67.06 | 81.29 | a | ||||||||
1920 | 62.74 | ----- | z | 71.50 | a | 74.55 | a | 87.10 | 90.50 | 96.19 | 90.58 | 89.03 | 78.29 | 71.52 | a | 62.00 | b | 79.46 | a | |||||||
1921 | 67.04 | d | 71.39 | 76.52 | 78.57 | 84.58 | 95.11 | b | 91.29 | 89.58 | 90.23 | 83.90 | a | 75.78 | c | 65.07 | c | 80.75 | ||||||||
1922 | 60.81 | e | 67.36 | 71.33 | a | 75.87 | 88.23 | 98.10 | 95.48 | 92.90 | 90.10 | 81.90 | 66.77 | 66.52 | 79.61 | |||||||||||
1923 | 68.84 | 63.39 | 68.32 | 78.90 | 88.97 | 95.00 | 91.45 | 85.68 | 87.53 | 81.13 | 65.67 | 56.19 | 77.59 | |||||||||||||
1924 | 60.84 | 70.59 | 66.77 | 76.27 | 87.06 | 99.13 | 95.55 | 95.66 | b | 90.60 | 82.39 | 74.43 | 58.03 | 79.78 | ||||||||||||
1925 | 62.32 | 74.00 | 77.52 | 75.83 | 92.66 | b | 93.70 | 97.10 | 94.32 | 88.63 | 82.06 | 69.63 | 59.36 | c | 80.59 | |||||||||||
1926 | 57.74 | 72.04 | 73.74 | 76.13 | 83.68 | 95.00 | 93.06 | 93.42 | 87.93 | 83.80 | a | 70.23 | 62.32 | 79.09 | ||||||||||||
1927 | 72.26 | 68.68 | 71.00 | 79.10 | 90.00 | 94.53 | 97.39 | 91.71 | 88.00 | 82.23 | ----- | z | 57.62 | j | 83.49 | b | ||||||||||
1928 | 67.65 | 66.21 | 75.06 | 79.47 | 87.94 | 96.60 | 96.35 | 90.19 | 91.00 | 82.39 | 67.97 | 62.84 | 80.30 | |||||||||||||
1929 | 63.03 | 62.07 | 69.71 | 78.60 | 88.26 | 98.33 | 93.77 | 90.87 | 89.10 | 83.16 | 71.73 | 70.48 | 79.93 | |||||||||||||
1930 | 60.97 | 75.79 | 71.61 | 84.37 | 85.87 | 97.90 | 95.50 | a | 97.06 | 92.10 | a | 85.26 | 68.93 | 62.45 | 81.48 | |||||||||||
1931 | 63.71 | 65.07 | 74.42 | 82.07 | b | 89.38 | j | 96.90 | 100.65 | 94.75 | k | 92.86 | a | 89.96 | f | 75.00 | e | 65.04 | f | 81.33 | d | |||||
1932 | 67.19 | j | ----- | z | 87.93 | a | ----- | z | 93.17 | b | 100.57 | 99.45 | 99.87 | 97.43 | 86.32 | 82.17 | 62.94 | 89.98 | c | |||||||
1933 | 61.16 | 64.11 | 77.40 | a | 80.77 | 89.24 | b | 103.90 | 108.26 | 104.77 | a | 97.23 | 87.71 | 82.48 | a | ----- | z | 87.00 | a | |||||||
1934 | 72.33 | a | ----- | z | 83.90 | 87.43 | 96.13 | 98.30 | 99.68 | 94.10 | a | 94.55 | a | 89.48 | 75.77 | 68.29 | 87.27 | a | ||||||||
1935 | 68.20 | a | 69.00 | 74.10 | a | 81.10 | 84.74 | 99.97 | 100.13 | 94.29 | 91.20 | 87.19 | 73.20 | 66.77 | 82.49 | |||||||||||
1936 | 66.74 | 67.52 | 74.84 | 85.55 | a | 95.73 | a | 101.90 | a | 100.90 | 98.53 | a | 91.57 | 85.16 | 72.63 | 67.17 | a | 84.02 | ||||||||
1937 | 58.24 | b | ----- | z | ----- | z | 84.00 | ----- | z | 98.37 | 100.74 | 98.77 | 94.67 | 87.45 | 78.70 | 69.43 | a | 85.60 | c | |||||||
1938 | 70.33 | a | 71.71 | 77.87 | 87.23 | 91.07 | a | 97.87 | 94.81 | 92.84 | 90.79 | a | 84.45 | 68.50 | 64.90 | 82.70 | ||||||||||
1939 | 59.81 | 56.48 | a | 73.45 | 81.97 | 90.13 | 97.23 | 95.48 | 93.16 | 89.80 | 79.68 | 69.50 | 67.52 | 79.52 | ||||||||||||
1940 | 63.26 | 62.48 | 73.58 | 78.67 | 89.48 | 95.57 | 97.90 | 92.84 | 90.27 | 81.16 | 67.27 | 64.61 | 79.76 | |||||||||||||
1941 | 61.70 | a | 66.75 | 69.23 | 73.16 | e | 88.47 | a | 95.04 | b | 97.45 | 93.39 | 90.52 | c | 79.64 | c | 73.79 | b | 62.90 | b | 79.34 | |||||
1942 | 64.00 | 63.83 | d | 71.48 | f | 78.79 | f | 90.71 | c | 98.53 | 101.33 | a | 95.03 | b | 93.48 | c | 81.53 | a | 77.43 | b | 66.86 | c | 83.27 | b | ||
1943 | 64.77 | e | 72.45 | f | 73.82 | c | 87.40 | e | 91.96 | e | 96.96 | e | 98.54 | c | 94.81 | e | 93.86 | a | 83.76 | b | 74.86 | a | 62.70 | d | 83.95 | a |
1944 | 61.31 | b | 64.24 | d | 68.36 | c | 77.54 | f | 88.44 | d | 97.04 | c | 98.44 | d | 97.32 | c | 91.69 | d | 84.66 | b | 67.21 | a | 64.68 | c | 80.31 | a |
1945 | 63.34 | b | 67.92 | c | 68.79 | c | ----- | z | 89.92 | s | 95.90 | 98.29 | 96.03 | 94.40 | 84.55 | 77.07 | ----- | z | 82.92 | c | ||||||
1946 | ----- | z | ----- | z | ----- | z | 87.85 | q | 86.84 | 96.97 | 93.87 | 91.52 | 89.33 | 77.43 | a | 65.87 | 62.74 | 83.07 | d | |||||||
1947 | 55.27 | a | 69.46 | 71.97 | a | 78.90 | 88.26 | 93.55 | a | 96.97 | a | 92.00 | 92.20 | 82.48 | b | 63.10 | 56.93 | a | 78.42 | |||||||
1948 | 61.42 | 63.62 | c | 65.87 | a | 82.53 | 90.06 | 97.13 | 97.39 | 94.48 | 91.67 | 80.35 | 66.80 | 62.06 | 79.45 | |||||||||||
1949 | 48.52 | 61.93 | 72.23 | 79.70 | 87.13 | 94.00 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.90 | g | |||||
1950 | ----- | z | ----- | z | 75.42 | g | ----- | z | ----- | z | ----- | z | 91.62 | j | ----- | z | 91.52 | a | 90.52 | 81.47 | ----- | z | 87.83 | i | ||
1951 | ----- | z | ----- | z | ----- | z | 81.00 | v | ----- | z | 100.25 | n | 100.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 100.00 | k | |
1952 | ----- | z | ----- | z | 65.92 | r | 76.67 | 88.74 | 95.93 | 96.48 | 93.66 | b | 93.52 | a | 89.48 | 66.83 | 60.52 | 84.65 | c | |||||||
1953 | 67.65 | 64.61 | 71.58 | 77.00 | 81.77 | 97.93 | 94.61 | 96.03 | 95.47 | 81.85 | d | 74.07 | 60.71 | 80.27 | ||||||||||||
1954 | 65.61 | 71.93 | 69.59 | b | 84.00 | a | 87.79 | b | 95.76 | a | 95.52 | 89.58 | 93.03 | 86.94 | 75.73 | 66.10 | 81.80 | |||||||||
1955 | 57.60 | a | 62.00 | b | 75.90 | u | 78.28 | e | 84.77 | a | 94.80 | 93.48 | 89.71 | 91.93 | 85.13 | 71.67 | 68.58 | 79.81 | a | |||||||
1956 | 67.29 | 61.34 | 75.55 | 77.80 | 89.74 | 97.20 | 94.16 | 92.48 | 94.93 | 83.68 | 70.23 | 63.52 | 80.66 | |||||||||||||
1957 | 61.84 | 73.21 | 70.23 | 76.90 | 82.10 | 96.17 | 96.32 | 92.52 | 91.50 | 77.35 | 65.03 | 64.97 | a | 79.01 | ||||||||||||
1958 | 61.10 | 65.32 | 62.35 | 75.93 | 90.65 | 97.33 | 95.81 | 92.74 | 88.70 | 78.71 | 69.37 | 68.71 | 78.89 | |||||||||||||
1959 | 67.45 | 64.54 | 72.48 | 82.00 | 86.19 | 97.37 | 95.90 | 88.77 | 90.67 | 81.39 | 66.70 | 60.58 | 79.50 | |||||||||||||
1960 | 56.23 | 59.69 | 75.90 | 80.30 | 87.13 | 98.17 | 95.84 | 93.65 | 91.60 | 78.55 | 72.67 | 60.55 | 79.19 | |||||||||||||
1961 | 60.61 | 64.79 | 71.06 | 80.03 | 88.10 | 97.27 | 95.81 | 91.06 | 86.73 | 80.19 | 64.77 | 59.74 | 78.35 | |||||||||||||
1962 | 57.97 | 65.79 | 65.13 | 82.93 | 86.16 | 94.43 | 94.10 | 97.48 | 89.80 | 83.13 | 73.67 | 62.87 | 79.45 | |||||||||||||
1963 | 60.03 | 68.93 | 71.19 | 79.03 | a | 91.17 | a | 95.67 | 97.55 | 89.52 | 91.67 | 84.45 | 69.67 | 63.45 | 80.19 | |||||||||||
1964 | 59.97 | 60.03 | 65.94 | 74.63 | 87.00 | 93.93 | 95.29 | 90.74 | 85.07 | 82.45 | 67.50 | 62.61 | 77.10 | |||||||||||||
1965 | 64.68 | 63.00 | 67.55 | 78.33 | 84.61 | 91.60 | 95.23 | 94.47 | a | 87.77 | 84.45 | 72.93 | 60.65 | 78.77 | ||||||||||||
1966 | 58.84 | 58.89 | 73.74 | 80.07 | 89.71 | 95.90 | 96.97 | 92.29 | 87.73 | 82.13 | 74.43 | 62.97 | 79.47 | |||||||||||||
1967 | 64.87 | 68.21 | 76.74 | 77.60 | 86.13 | 93.77 | 94.52 | 93.58 | ----- | z | ----- | z | ----- | z | ----- | z | 81.93 | d | ||||||||
1968 | 62.00 | m | 70.00 | 70.50 | a | 74.07 | a | 86.79 | b | ----- | z | 96.20 | f | ----- | z | 92.87 | g | 86.11 | c | 69.76 | e | 62.79 | q | 76.20 | f | |
1969 | 67.58 | e | 66.75 | h | 71.73 | i | ----- | z | ----- | z | 96.74 | g | 97.71 | c | 100.42 | 96.00 | a | ----- | z | ----- | z | ----- | z | 90.43 | h | |
1970 | 68.52 | h | 69.43 | 68.39 | 76.03 | 89.68 | 96.83 | a | 97.26 | 92.68 | 88.17 | 79.16 | 75.43 | 67.00 | 81.82 | a | ||||||||||
1971 | 67.84 | 66.50 | 76.26 | 79.47 | 85.65 | 96.03 | 99.07 | a | 89.87 | 91.23 | 77.26 | 70.90 | 59.00 | 79.92 | ||||||||||||
1972 | 65.84 | 71.25 | a | 80.45 | 82.50 | ----- | z | 94.12 | f | 97.32 | 93.69 | b | 89.03 | 76.47 | a | 65.17 | 61.39 | 78.31 | b | |||||||
1973 | 59.19 | 63.89 | 64.32 | 74.17 | a | 87.86 | j | 95.79 | b | 96.57 | a | 96.71 | 93.77 | 85.84 | 72.93 | 66.19 | 79.03 | a | ||||||||
1974 | 63.68 | 68.60 | c | 75.48 | 81.07 | 91.13 | 102.07 | 94.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.33 | e | ||||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 63.07 | 66.38 | 72.41 | 79.37 | 87.87 | 96.70 | 96.47 | 93.58 | 91.12 | 82.92 | 71.77 | 63.20 | 79.93 | |||||||||||||
S.D. | 4.27 | 4.18 | 4.70 | 3.42 | 3.09 | 2.26 | 2.83 | 3.15 | 2.47 | 3.14 | 4.46 | 3.94 | 1.47 | |||||||||||||
SKEW | -0.34 | 0.04 | 0.55 | 0.28 | 0.26 | 0.34 | 0.82 | 0.66 | 0.36 | 0.10 | 0.27 | 0.08 | 0.83 | |||||||||||||
MAX | 72.33 | 75.79 | 87.93 | 87.43 | 96.13 | 103.90 | 108.26 | 104.77 | 97.43 | 90.52 | 82.48 | 74.19 | 84.02 | |||||||||||||
MIN | 48.52 | 56.48 | 62.35 | 72.14 | 81.77 | 90.50 | 90.68 | 85.68 | 85.07 | 76.47 | 63.10 | 52.74 | 77.10 | |||||||||||||
YRS | 62 | 61 | 63 | 64 | 62 | 67 | 70 | 67 | 67 | 65 | 64 | 60 | 42 |