YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | 61.38 | g | 60.93 | 71.06 | 76.10 | 82.71 | 96.75 | j | 86.81 | 88.48 | 87.13 | 77.45 | 62.40 | 62.68 | 75.58 | b | ||||||||||
1907 | 66.13 | 69.79 | 81.67 | a | 82.43 | 82.48 | 93.57 | 92.39 | 94.39 | 88.67 | 72.00 | a | 59.76 | a | 62.06 | 78.78 | ||||||||||
1908 | 61.29 | 63.72 | 78.16 | 78.03 | 85.90 | 93.57 | 86.97 | 88.00 | 86.30 | 79.19 | 69.31 | a | 61.68 | 77.68 | ||||||||||||
1909 | 66.39 | 67.48 | a | 72.06 | 84.05 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.64 | i | ||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 79.93 | p | 88.13 | 96.87 | 85.94 | 79.39 | c | 71.31 | d | 65.69 | b | 62.20 | 66.75 | w | 78.50 | e | ||||
1917 | 56.48 | f | 63.82 | 71.41 | d | 77.43 | 79.55 | 94.17 | 95.90 | a | 92.97 | b | 85.77 | 79.94 | 71.67 | 62.83 | a | 79.59 | a | |||||||
1918 | 53.54 | c | 68.46 | b | 72.76 | b | 73.93 | 83.42 | 90.80 | 93.48 | 89.60 | a | ----- | z | ----- | z | ----- | z | ----- | z | 78.25 | d | ||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | 83.87 | a | 87.19 | c | 92.80 | a | 96.12 | g | 82.50 | b | 73.30 | d | 66.52 | g | 62.30 | d | 80.32 | f |
1920 | 54.64 | i | 61.89 | b | 70.44 | f | 73.33 | f | 83.61 | 88.40 | 86.14 | i | 89.21 | b | 87.54 | b | 77.93 | c | 63.79 | a | 56.55 | b | 76.11 | d | ||
1921 | 67.56 | d | 64.00 | 69.52 | 76.38 | a | 84.77 | a | 85.73 | 90.00 | b | 94.93 | b | 89.89 | c | 83.00 | a | 74.97 | a | 64.58 | l | 80.07 | a | |||
1922 | 51.63 | a | 63.00 | a | 71.81 | e | 74.03 | 88.00 | a | 90.86 | b | 99.10 | a | 97.00 | 92.62 | a | 77.00 | b | 60.17 | f | 50.69 | r | 80.51 | b | ||
1923 | 47.29 | c | ----- | z | ----- | z | ----- | z | 82.82 | n | 90.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.64 | j | |
1924 | 47.00 | s | ----- | z | 54.60 | k | 73.87 | 80.77 | 96.82 | b | 90.84 | 94.26 | 82.50 | 80.20 | a | 68.62 | i | ----- | z | 85.61 | e | |||||
1925 | ----- | z | 67.64 | q | 73.00 | e | 81.62 | a | 82.68 | ----- | z | ----- | z | 87.35 | 84.07 | 72.67 | d | 65.40 | 54.73 | a | 75.19 | d | ||||
1926 | 50.13 | 65.32 | 65.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.30 | i | |||
1927 | ----- | z | ----- | z | ----- | z | 82.97 | a | 90.05 | l | 89.11 | k | 92.48 | 95.26 | 86.27 | 80.30 | a | 73.96 | d | 48.32 | 79.94 | e | ||||
1928 | 58.77 | 55.38 | ----- | z | ----- | z | 83.79 | b | 92.66 | a | 92.32 | 86.94 | 81.07 | a | 74.29 | c | 46.00 | i | 49.97 | 75.02 | c | |||||
1929 | 53.70 | a | 48.00 | 55.03 | a | 75.43 | 81.89 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.97 | 60.45 | 61.50 | e | ||||
1930 | 48.84 | 69.07 | 64.65 | 79.77 | 80.59 | b | 89.52 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.07 | f | ||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | 74.60 | p | 80.87 | 83.16 | 91.97 | 94.68 | 91.76 | f | 78.37 | 72.29 | 66.10 | 50.35 | h | 81.06 | e | |||||||
1933 | 58.87 | 58.30 | a | 71.29 | 75.68 | k | 86.44 | v | 94.27 | 95.86 | c | 92.57 | c | 88.80 | 79.20 | p | 51.71 | i | 67.11 | v | 79.99 | e | ||||
1934 | 58.71 | 63.93 | 63.50 | a | 74.00 | 86.06 | 96.20 | 96.13 | 94.58 | 87.82 | m | 80.36 | i | 67.97 | 58.16 | 75.92 | b | |||||||||
1935 | 55.90 | 56.50 | h | 70.79 | c | ----- | z | 75.52 | 84.86 | p | ----- | z | ----- | z | 74.53 | m | ----- | z | ----- | z | ----- | z | 67.40 | i | ||
1936 | 62.07 | q | 64.28 | 71.56 | v | ----- | z | ----- | z | ----- | z | ----- | z | 98.39 | c | 84.80 | 72.43 | c | 63.10 | ----- | z | 76.60 | g | |||
1937 | 53.81 | d | ----- | z | ----- | z | 82.50 | 88.26 | 91.04 | d | 96.06 | 93.68 | ----- | z | ----- | z | ----- | z | ----- | z | 84.23 | f | ||||
1938 | ----- | z | ----- | z | 73.16 | 80.00 | a | 88.52 | 95.53 | 95.24 | j | 95.16 | 88.39 | g | 85.10 | k | ----- | z | ----- | z | 86.47 | g | ||||
1939 | 60.24 | f | 59.57 | 71.94 | 82.23 | 89.97 | 97.28 | e | ----- | z | 95.64 | t | 92.13 | ----- | z | 63.07 | a | 62.90 | 77.39 | d | ||||||
1940 | 51.97 | a | 61.79 | 72.79 | c | 79.86 | b | 87.62 | j | 91.54 | d | 95.16 | 90.83 | a | 89.47 | 80.00 | d | 62.27 | 59.35 | h | 77.57 | b | ||||
1941 | 56.42 | 59.82 | 61.16 | 72.70 | 79.39 | 84.87 | 90.42 | 93.61 | 85.64 | h | 75.16 | 67.88 | d | 62.08 | e | 73.05 | a | |||||||||
1942 | 54.61 | 61.00 | 68.23 | a | 75.80 | 87.91 | h | 95.30 | 95.11 | c | 89.90 | 85.37 | 77.61 | 74.34 | a | 61.68 | 76.27 | a | ||||||||
1943 | 58.35 | 68.41 | a | 70.17 | g | 84.20 | 85.97 | 92.93 | 93.37 | d | 98.94 | 91.57 | i | 78.97 | b | 64.69 | n | 55.74 | 79.65 | c | ||||||
1944 | 57.68 | 62.31 | 71.32 | 78.77 | 86.71 | 94.50 | 95.58 | 92.55 | 83.23 | 76.71 | 65.03 | a | 54.23 | a | 76.55 | |||||||||||
1945 | 59.58 | 65.86 | f | 71.84 | 76.63 | 89.74 | 93.80 | 89.74 | 93.47 | a | 89.62 | a | 73.19 | 71.03 | 58.26 | 78.81 | a | |||||||||
1946 | 53.61 | 65.39 | 72.81 | 83.33 | 85.65 | 92.33 | 94.23 | a | 93.69 | e | 82.57 | 76.68 | 66.37 | 66.48 | f | 78.79 | a | |||||||||
1947 | 55.13 | a | 59.33 | a | 67.93 | a | 76.85 | c | 85.16 | 95.03 | 95.68 | 92.06 | 90.07 | b | 82.38 | e | 61.61 | b | 56.93 | c | 76.52 | |||||
1948 | 54.00 | 61.38 | 67.39 | 83.83 | 87.29 | 95.72 | e | 93.74 | d | 94.58 | 88.21 | b | 76.15 | d | 65.47 | 63.35 | 77.59 | |||||||||
1949 | 43.63 | a | 61.54 | 71.71 | 72.39 | b | 81.33 | j | 90.92 | e | 93.55 | b | 90.45 | 82.90 | a | 74.10 | 73.40 | 58.26 | 73.90 | a | ||||||
1950 | 63.39 | 68.43 | 72.42 | 79.30 | 85.61 | 93.07 | c | 87.26 | 91.42 | 84.48 | a | 83.57 | c | 72.57 | 66.41 | b | 78.99 | |||||||||
1951 | 59.87 | 64.70 | a | 68.10 | 76.13 | 85.19 | 97.60 | j | 95.77 | 94.74 | 89.90 | a | 82.64 | c | 66.87 | 61.90 | 76.89 | a | ||||||||
1952 | 63.71 | 63.50 | a | 65.68 | 75.10 | 86.61 | 94.92 | e | 90.57 | a | 97.16 | 85.63 | 78.97 | a | 59.10 | a | 58.35 | 76.61 | ||||||||
1953 | 66.52 | 60.93 | 72.65 | 77.59 | c | 84.37 | a | 95.43 | i | 95.17 | h | 92.13 | 89.63 | 76.63 | a | 66.43 | 53.26 | 74.01 | b | |||||||
1954 | 62.27 | a | 68.64 | 67.94 | 80.07 | 79.68 | 90.33 | 95.55 | 91.77 | a | 90.37 | 77.94 | 67.97 | 60.74 | 77.77 | |||||||||||
1955 | 54.90 | 60.07 | 70.81 | 79.90 | 83.27 | a | 91.90 | 90.65 | 90.81 | 87.20 | 76.83 | a | 65.77 | 62.48 | 76.22 | |||||||||||
1956 | 60.26 | 57.29 | a | 72.71 | 75.53 | 89.10 | a | 95.29 | m | 93.90 | 92.63 | a | 90.21 | a | 79.48 | 63.79 | a | 60.35 | 75.93 | a | ||||||
1957 | 57.63 | a | 65.29 | 67.32 | 74.73 | 79.39 | 90.37 | 91.69 | o | 90.16 | 85.30 | 71.16 | 55.53 | 61.32 | 72.56 | a | ||||||||||
1958 | 51.71 | 57.21 | 58.10 | a | 71.37 | 83.57 | a | 94.14 | a | 96.06 | 93.81 | o | 83.50 | b | 67.87 | 65.90 | 58.97 | 71.67 | a | |||||||
1959 | 59.35 | 57.71 | 68.94 | 75.00 | 82.74 | 90.30 | 89.87 | 93.39 | 90.30 | 76.03 | 59.97 | 51.13 | 74.56 | |||||||||||||
1960 | 50.26 | 51.14 | 61.90 | 74.07 | 80.81 | 93.27 | 86.77 | 84.97 | 82.70 | 80.38 | r | 64.86 | i | 47.35 | 71.32 | b | ||||||||||
1961 | 54.06 | 62.25 | 66.69 | e | 78.17 | 86.16 | 90.67 | 90.13 | h | 90.39 | 86.17 | 79.07 | b | 58.37 | 57.94 | 73.63 | a | |||||||||
1962 | 52.84 | 68.75 | 64.94 | 78.13 | 90.61 | 89.89 | b | 92.00 | 92.88 | e | 83.90 | 77.03 | 66.71 | b | 57.07 | d | 76.23 | |||||||||
1963 | 56.16 | 63.29 | 70.76 | b | 79.87 | 84.29 | j | 90.20 | 93.29 | 91.81 | 86.27 | 81.71 | 66.63 | 52.45 | 75.68 | a | ||||||||||
1964 | 56.29 | 55.97 | 68.77 | a | 79.27 | 86.87 | 92.80 | 95.94 | 94.82 | c | 83.77 | 79.90 | k | 65.93 | 58.90 | 76.30 | a | |||||||||
1965 | 61.55 | 57.46 | 61.42 | 79.90 | 84.19 | 89.63 | 94.23 | 87.94 | 85.67 | 79.43 | j | 70.47 | 59.19 | 75.60 | a | |||||||||||
1966 | 51.16 | 56.71 | 69.61 | 74.40 | 82.84 | 89.40 | 95.06 | 87.00 | 82.17 | 74.79 | g | 69.68 | b | 56.74 | 74.07 | a | ||||||||||
1967 | 60.65 | 62.46 | 74.77 | 80.57 | 84.03 | 90.07 | 89.93 | b | 87.71 | c | 80.83 | 78.71 | g | 64.71 | b | 53.32 | 75.37 | a | ||||||||
1968 | 55.84 | 57.90 | 64.23 | 72.73 | 81.42 | 91.73 | 85.90 | 87.73 | e | 84.15 | d | 79.34 | b | 62.50 | b | 58.06 | 73.46 | |||||||||
1969 | 64.00 | 60.79 | 58.58 | 77.13 | 82.94 | 89.33 | 95.29 | 93.42 | e | 83.30 | 75.96 | h | 64.18 | b | 59.32 | 75.30 | a | |||||||||
1970 | 56.67 | a | 61.21 | 63.26 | 75.73 | 85.10 | 87.83 | 91.39 | 92.71 | 82.97 | 70.78 | h | 66.60 | 63.03 | 75.14 | a | ||||||||||
1971 | 60.55 | 61.57 | 73.26 | 75.23 | 84.48 | 90.43 | 92.71 | 81.74 | 81.37 | 73.27 | e | 66.00 | b | 57.35 | 74.83 | |||||||||||
1972 | 59.87 | 66.31 | 74.35 | 82.43 | 80.58 | 88.67 | 90.10 | 86.16 | 81.27 | 78.54 | g | 58.63 | 57.45 | 75.08 | a | |||||||||||
1973 | 49.00 | 54.54 | 64.58 | 71.50 | 78.32 | 84.17 | ----- | z | 90.32 | 81.80 | 78.65 | h | 70.40 | 60.84 | 70.55 | b | ||||||||||
1974 | 59.10 | b | 62.82 | 75.58 | 77.90 | 88.26 | 92.50 | 92.74 | 85.77 | 73.93 | 70.77 | 64.00 | e | 54.48 | 74.82 | |||||||||||
1975 | 57.65 | 59.37 | a | 67.42 | 73.90 | 81.35 | 91.43 | 85.29 | 87.77 | 79.53 | ----- | z | 66.63 | 60.06 | 73.67 | a | ||||||||||
1976 | 56.74 | 69.93 | 69.45 | 77.37 | 80.16 | 90.73 | 87.29 | 90.55 | 80.77 | 70.00 | f | 58.10 | 57.52 | 74.42 | a | |||||||||||
1977 | 51.45 | 61.71 | 66.29 | 74.60 | 85.48 | 92.17 | 93.97 | 94.48 | 93.11 | b | 76.61 | 69.53 | 63.97 | 76.95 | ||||||||||||
1978 | 51.19 | ----- | z | ----- | z | 81.30 | 84.65 | 90.73 | 94.71 | 91.03 | 80.30 | 70.21 | q | 61.00 | 55.00 | a | 76.66 | c | ||||||||
1979 | 48.23 | 59.79 | 65.37 | a | 75.87 | ----- | z | 86.73 | ----- | z | ----- | z | 85.57 | 82.13 | 61.30 | 58.14 | b | 69.23 | c | |||||||
1980 | 55.65 | 62.45 | 67.61 | 76.20 | 82.03 | 98.43 | 98.48 | 92.52 | 83.97 | 73.42 | 59.77 | 61.39 | 75.99 | |||||||||||||
1981 | 54.81 | 62.79 | 63.84 | 76.50 | 81.68 | 93.10 | 92.34 | b | 86.16 | 83.57 | 73.77 | 70.97 | 64.71 | 75.35 | ||||||||||||
1982 | 57.52 | 59.61 | 71.39 | 75.30 | 81.29 | 91.63 | 95.70 | a | 93.71 | 86.63 | 76.50 | c | 62.33 | 52.16 | 75.31 | |||||||||||
1983 | 53.52 | 58.86 | 67.52 | 71.10 | 84.40 | a | 91.23 | 95.16 | 94.42 | 87.77 | 76.03 | 65.10 | 52.39 | 74.79 | ||||||||||||
1984 | 51.29 | 62.72 | 68.61 | 77.93 | 85.84 | 86.25 | n | 92.33 | d | 87.10 | 82.37 | 69.94 | 60.96 | c | 60.16 | 72.66 | a | |||||||||
1985 | 52.23 | 58.39 | 69.30 | a | 78.18 | m | 85.97 | 87.00 | 91.74 | d | 93.87 | 83.87 | 72.38 | e | 67.30 | 56.48 | 74.41 | a | ||||||||
1986 | 62.77 | 63.57 | 72.23 | 82.07 | 84.69 | e | 86.27 | 89.74 | 90.07 | b | 82.30 | 71.77 | 61.30 | c | 52.30 | d | 74.92 | |||||||||
1987 | 55.94 | 58.96 | 64.16 | 74.23 | 80.58 | 88.23 | 93.13 | 91.61 | 83.97 | 79.35 | 65.20 | 55.29 | 74.22 | |||||||||||||
1988 | 51.26 | 60.03 | 69.42 | 77.48 | a | 84.06 | 90.37 | 89.26 | 89.45 | b | 85.00 | k | 77.62 | b | 69.27 | 55.61 | 73.98 | a | ||||||||
1989 | 59.03 | a | 57.50 | 74.87 | a | 80.80 | 90.67 | a | 92.67 | 93.94 | 89.35 | 83.67 | 79.78 | d | 67.60 | 51.81 | j | 79.08 | a | |||||||
1990 | 59.96 | e | 62.68 | 69.00 | c | 77.00 | 85.93 | b | 99.67 | 87.06 | 87.23 | 83.32 | e | 76.45 | 67.30 | 61.91 | i | 77.78 | a | |||||||
1991 | 50.56 | d | 63.29 | u | 69.00 | 79.77 | 89.00 | 91.73 | 89.06 | 89.11 | c | 76.50 | 77.26 | 59.79 | a | 55.81 | e | 75.24 | a | |||||||
1992 | 50.55 | 61.38 | 69.86 | i | 77.10 | 78.65 | 87.41 | c | 91.52 | 89.35 | 88.32 | e | 81.00 | j | 62.52 | c | ----- | z | 76.31 | c | ||||||
1993 | ----- | z | 58.21 | 68.74 | 77.83 | g | 84.54 | e | 92.27 | o | 93.39 | 92.32 | 86.13 | 75.45 | 65.64 | p | 58.19 | 77.12 | d | |||||||
1994 | 56.00 | 61.75 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.87 | a | 87.23 | ----- | z | 65.43 | 59.65 | 70.49 | f | |||||
1995 | 56.37 | a | 64.96 | 65.71 | 77.90 | 83.70 | d | 90.63 | 95.32 | 92.48 | 81.50 | f | 77.52 | b | 65.90 | 57.16 | 75.24 | a | ||||||||
1996 | 56.39 | 63.37 | b | 66.77 | a | 76.28 | a | ----- | z | ----- | z | 91.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.79 | g | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 56.26 | 61.73 | 68.81 | 77.47 | 84.15 | 91.58 | 92.45 | 91.21 | 84.88 | 76.44 | 65.27 | 58.06 | 76.10 | |||||||||||||
S.D. | 4.94 | 4.18 | 4.61 | 3.23 | 3.17 | 3.15 | 3.20 | 3.58 | 4.07 | 3.81 | 4.41 | 4.07 | 1.50 | |||||||||||||
SKEW | 0.13 | -0.36 | -0.35 | 0.16 | -0.08 | 0.08 | -0.45 | -0.59 | -0.55 | -0.41 | 0.08 | -0.47 | 0.28 | |||||||||||||
MAX | 67.56 | 69.93 | 81.67 | 84.20 | 90.67 | 99.67 | 99.10 | 98.94 | 93.11 | 83.57 | 74.97 | 66.41 | 78.99 | |||||||||||||
MIN | 43.63 | 48.00 | 55.03 | 71.10 | 75.52 | 84.17 | 85.29 | 79.39 | 71.31 | 65.69 | 55.53 | 47.35 | 73.46 | |||||||||||||
YRS | 71 | 71 | 70 | 71 | 71 | 69 | 67 | 72 | 69 | 57 | 67 | 63 | 21 |