YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | 82.25 | i | 84.24 | a | 91.81 | b | 90.20 | h | 86.55 | a | 73.93 | c | 60.75 | v | 56.20 | h | 84.13 | h |
1911 | 54.12 | j | 54.25 | b | 64.50 | o | 68.64 | e | 74.03 | m | 82.78 | e | 90.39 | h | 90.90 | p | 83.71 | i | 70.58 | e | 58.98 | b | 49.50 | a | 64.12 | f |
1912 | 55.05 | l | 58.00 | d | 58.12 | a | 65.65 | c | 75.07 | b | 84.29 | d | 86.34 | l | ----- | z | 80.69 | c | 68.81 | 62.02 | d | 50.41 | c | 67.00 | c | |
1913 | 48.73 | a | 54.87 | b | 57.38 | b | 67.82 | 74.08 | 80.47 | 86.58 | 88.92 | 84.23 | b | 71.24 | 63.09 | a | 52.94 | 69.19 | ||||||||
1914 | ----- | z | 57.76 | a | 65.13 | d | ----- | z | 76.13 | 82.88 | 89.16 | ----- | z | 83.90 | a | 71.95 | b | 64.88 | 50.58 | a | 71.37 | c | ||||
1915 | 51.56 | v | ----- | z | 62.93 | b | 69.75 | 71.81 | e | 84.05 | b | 87.97 | 89.74 | n | 80.41 | n | 73.29 | c | 59.94 | d | 52.98 | 70.34 | d | |||
1916 | 51.91 | d | 60.98 | a | 67.64 | b | 71.42 | d | 76.79 | c | 85.30 | g | 89.81 | o | 85.48 | e | 82.17 | g | 66.10 | f | 57.86 | e | 48.85 | g | 67.44 | e |
1917 | ----- | z | 57.21 | d | 58.71 | 67.03 | 70.98 | h | 85.60 | 91.42 | r | 90.35 | u | 83.43 | p | 75.40 | 61.88 | d | 56.95 | b | 66.11 | e | ||||
1918 | 53.50 | g | 55.91 | a | 63.92 | 69.30 | h | 71.65 | e | 88.00 | e | 89.29 | n | 89.29 | q | 82.72 | j | 74.68 | c | 58.93 | g | 50.97 | 67.52 | f | ||
1919 | 52.44 | 54.55 | 59.52 | e | 70.98 | 76.45 | l | 84.03 | l | 90.83 | y | 87.50 | w | 83.43 | p | 65.68 | i | 58.30 | 54.26 | 58.34 | f | |||||
1920 | 55.50 | g | 59.60 | n | 60.89 | 67.78 | 76.18 | 82.50 | 90.58 | l | 89.56 | w | 78.85 | m | 68.18 | ----- | z | 50.87 | 67.73 | f | ||||||
1921 | 48.16 | l | 52.77 | m | 62.79 | j | 68.05 | a | 72.66 | c | 84.98 | d | 92.60 | k | 89.17 | p | 80.94 | n | 73.33 | b | 60.82 | h | 54.73 | c | 70.75 | g |
1922 | 49.29 | e | ----- | z | 60.44 | e | 64.35 | c | 78.12 | e | 86.81 | c | 91.88 | j | 92.15 | n | 85.11 | u | 73.30 | d | 58.80 | 57.10 | 66.03 | d | ||
1923 | 55.55 | 57.16 | 61.68 | a | 67.15 | d | 78.15 | n | 80.04 | c | 90.61 | c | 89.06 | 83.67 | g | 70.21 | c | 62.30 | b | 53.81 | 68.76 | b | ||||
1924 | 52.00 | 60.93 | 59.93 | b | 68.38 | b | 78.40 | a | 88.30 | b | 90.16 | f | 90.22 | d | 87.50 | k | 70.00 | g | 62.42 | d | 52.56 | 68.13 | c | |||
1925 | 52.03 | a | 61.84 | c | 64.55 | b | 71.31 | d | 79.44 | g | 85.20 | 92.50 | h | 89.40 | 85.98 | a | 77.60 | e | 67.48 | e | 59.09 | i | 72.82 | c | ||
1926 | 51.87 | 61.18 | 67.18 | 73.52 | e | 77.12 | a | 86.57 | 90.11 | h | 90.00 | f | 82.50 | h | 74.45 | a | 63.68 | 52.27 | 67.54 | c | ||||||
1927 | 54.89 | 59.85 | b | 61.02 | 69.00 | a | 76.58 | 83.90 | 91.23 | c | 91.18 | a | 82.08 | e | 73.24 | 64.07 | b | 53.15 | 71.68 | |||||||
1928 | 55.48 | 58.45 | 65.70 | a | 69.10 | 78.47 | 85.17 | 90.50 | c | 89.37 | e | 83.73 | f | 72.94 | d | 58.05 | h | 49.13 | 71.43 | b | ||||||
1929 | 50.19 | 54.64 | 63.33 | a | 66.78 | 77.38 | a | 83.27 | 91.17 | d | 92.87 | a | 82.73 | 75.45 | b | 60.50 | 57.70 | c | 71.33 | |||||||
1930 | 52.58 | a | 62.52 | b | 64.07 | a | 74.07 | b | 72.52 | 83.38 | a | 90.02 | h | 88.82 | i | 82.59 | n | 71.08 | f | 62.18 | b | 51.38 | a | 65.34 | d | |
1931 | 57.54 | q | 59.96 | 66.86 | b | 74.91 | b | 82.13 | 77.22 | 93.19 | 92.55 | 86.48 | b | 76.35 | 60.55 | b | 53.10 | a | 74.85 | a | ||||||
1932 | 51.94 | 57.83 | 66.15 | 70.75 | 77.52 | 84.53 | 90.82 | a | 91.90 | 88.82 | 72.42 | a | 65.22 | c | 51.11 | 72.42 | ||||||||||
1933 | ----- | z | ----- | z | 63.52 | a | 65.69 | a | 71.53 | 84.53 | 93.47 | 91.19 | 86.35 | 78.90 | 63.72 | a | 55.61 | 75.45 | b | |||||||
1934 | 58.35 | 64.02 | 74.50 | 78.12 | e | 85.32 | ----- | z | 93.87 | 95.83 | h | 88.88 | 79.02 | 65.80 | 57.06 | 74.50 | b | |||||||||
1935 | 55.22 | b | 61.06 | a | 60.90 | a | 70.25 | 76.29 | 89.27 | 92.18 | 92.31 | 89.48 | 75.73 | 59.90 | 56.34 | 73.24 | ||||||||||
1936 | 54.66 | 60.09 | 68.37 | ----- | z | 82.52 | 89.68 | 95.85 | 95.19 | 84.85 | c | 74.66 | 62.83 | 54.32 | a | 74.82 | a | |||||||||
1937 | 45.12 | c | 56.25 | 59.52 | 67.92 | 79.61 | 88.00 | 95.50 | 94.81 | 90.97 | a | 78.23 | 65.17 | 58.00 | 73.26 | |||||||||||
1938 | 55.24 | 56.25 | 62.84 | 70.97 | 78.31 | 85.65 | 91.87 | 91.53 | 88.63 | 71.21 | 55.60 | 55.37 | 71.96 | |||||||||||||
1939 | 51.56 | 51.18 | 63.27 | 73.95 | ----- | z | 85.48 | 91.97 | 95.18 | 82.52 | 72.87 | 64.67 | 59.65 | 72.03 | a | |||||||||||
1940 | 56.16 | 57.69 | 66.05 | 71.42 | 81.97 | 88.82 | 89.19 | 91.92 | 84.40 | 75.40 | 58.58 | 56.95 | 73.21 | |||||||||||||
1941 | 54.19 | 59.27 | 62.82 | 67.30 | 81.98 | 84.58 | 93.79 | 88.87 | 81.10 | 70.82 | 63.78 | 56.27 | 72.07 | |||||||||||||
1942 | 55.95 | 56.28 | a | 62.35 | 69.50 | 77.02 | 85.73 | 93.81 | 92.66 | 85.98 | ----- | z | ----- | z | 57.68 | 73.70 | b | |||||||||
1943 | 55.85 | 60.46 | 68.50 | 74.59 | a | 81.39 | 84.91 | b | 93.63 | h | 91.85 | 89.53 | 75.81 | 62.18 | 55.24 | 72.76 | a | |||||||||
1944 | 53.98 | a | 54.40 | 61.19 | 69.23 | 76.47 | 80.88 | 89.73 | 91.76 | 84.23 | 73.75 | a | 59.32 | 53.10 | 70.67 | |||||||||||
1945 | 54.32 | 56.57 | 61.32 | a | 70.80 | c | 77.97 | 85.48 | 94.35 | 91.97 | 88.60 | 77.66 | 62.80 | 54.69 | 73.04 | |||||||||||
1946 | 54.92 | 56.18 | 64.74 | 75.45 | 79.13 | 88.88 | 93.84 | 94.48 | 88.90 | 71.37 | 60.20 | 58.44 | 73.88 | |||||||||||||
1947 | 52.63 | a | 62.83 | a | 66.24 | 72.57 | 81.90 | 86.28 | 94.56 | 92.34 | b | 91.57 | 77.85 | d | 58.34 | e | 54.50 | 74.30 | ||||||||
1948 | 55.71 | 57.05 | 59.68 | 72.12 | a | 78.92 | 85.93 | 93.02 | 93.03 | 88.58 | 77.05 | 59.60 | 50.77 | a | 72.62 | |||||||||||
1949 | 45.11 | 54.16 | 62.92 | 74.38 | 77.68 | 88.45 | 93.29 | 92.19 | 92.28 | 74.13 | 68.88 | 54.09 | b | 73.13 | ||||||||||||
1950 | 52.40 | 61.50 | 67.00 | 75.20 | 77.26 | 85.50 | 92.13 | 92.44 | 85.23 | 79.79 | 67.82 | 61.58 | a | 74.82 | ||||||||||||
1951 | 55.03 | 58.30 | 63.60 | 71.03 | 78.65 | 84.52 | 92.94 | 91.10 | 88.60 | 76.69 | 63.77 | 54.53 | a | 73.23 | ||||||||||||
1952 | 52.71 | 58.12 | 59.90 | 71.02 | 83.65 | 83.98 | 93.32 | 94.16 | 90.15 | 82.47 | 61.68 | 55.05 | 73.85 | |||||||||||||
1953 | 59.44 | 58.25 | 64.05 | 69.65 | 72.76 | 83.88 | 94.47 | 91.74 | 86.70 | 75.61 | 64.93 | 54.65 | 73.01 | |||||||||||||
1954 | 54.48 | 64.41 | 62.82 | 75.28 | 79.92 | 84.88 | 94.39 | 90.15 | 87.72 | 77.45 | 66.68 | 55.27 | 74.46 | |||||||||||||
1955 | 50.92 | 55.07 | 64.82 | 68.73 | 75.45 | 84.80 | 90.15 | 92.50 | 87.87 | 78.73 | 63.97 | 57.77 | 72.56 | |||||||||||||
1956 | 57.35 | 54.34 | 64.44 | 69.17 | 77.60 | 86.93 | 90.66 | 88.92 | 91.25 | 76.95 | a | 61.15 | 55.52 | a | 72.86 | |||||||||||
1957 | 54.07 | a | 63.43 | 65.58 | 71.02 | 75.52 | h | 90.12 | 95.23 | 92.74 | b | 87.70 | 73.23 | 60.80 | 57.92 | 73.80 | a | |||||||||
1958 | 57.26 | 60.52 | a | 58.98 | 67.95 | a | 80.42 | 84.67 | 89.39 | 92.08 | 87.13 | 77.69 | 61.43 | 57.87 | 72.95 | |||||||||||
1959 | 56.15 | 55.07 | 64.65 | 72.20 | 74.31 | 87.37 | 93.53 | 89.66 | 82.75 | 74.11 | 62.58 | 54.66 | 72.25 | |||||||||||||
1960 | 50.03 | 55.41 | 65.60 | 70.53 | 75.42 | 87.90 | 91.76 | 90.52 | 87.35 | 74.34 | 61.32 | 52.84 | 71.92 | |||||||||||||
1961 | 55.50 | 59.04 | 62.11 | 69.45 | 74.35 | 86.40 | 90.58 | 90.65 | 81.78 | 72.52 | 59.00 | 53.72 | a | 71.26 | ||||||||||||
1962 | 53.10 | 57.52 | 57.47 | 73.37 | 72.71 | 82.70 | 89.03 | 92.02 | 86.15 | 74.35 | 65.55 | 56.58 | 71.71 | |||||||||||||
1963 | 50.60 | 63.86 | 61.61 | 65.22 | 77.26 | 81.12 | 90.08 | 89.06 | 85.95 | 76.63 | 62.57 | 53.94 | 71.49 | |||||||||||||
1964 | 50.05 | 54.38 | 59.29 | 66.60 | 73.56 | 81.95 | 90.58 | 89.52 | 82.30 | 77.94 | 58.85 | 55.08 | 70.01 | |||||||||||||
1965 | 54.82 | 57.36 | 60.34 | 68.33 | a | 74.82 | 78.08 | 88.65 | 89.15 | 80.08 | 75.48 | 64.60 | 53.50 | 70.43 | ||||||||||||
1966 | 51.31 | 54.02 | 63.21 | 71.48 | 78.29 | 84.27 | 90.27 | 91.79 | 84.70 | 72.19 | 62.65 | 55.56 | 71.65 | |||||||||||||
1967 | 52.97 | 58.52 | 64.18 | 61.88 | 75.45 | 80.33 | 91.29 | 91.71 | 83.80 | 75.63 | 66.27 | 51.24 | 71.11 | |||||||||||||
1968 | 53.40 | 62.97 | 63.23 | 64.88 | 75.69 | 83.57 | 89.10 | 86.82 | 83.62 | 73.16 | 63.62 | 49.85 | 70.83 | |||||||||||||
1969 | 57.27 | 55.32 | 61.31 | 68.87 | 77.58 | 80.48 | 90.63 | 93.85 | a | 87.00 | 70.40 | 63.07 | 55.37 | 71.76 | ||||||||||||
1970 | 53.06 | 59.00 | 61.52 | 64.52 | 75.95 | 84.23 | 91.85 | 92.39 | 83.18 | 70.94 | 62.05 | 53.26 | 71.00 | |||||||||||||
1971 | 53.02 | 57.39 | 62.35 | 65.33 | 72.40 | 81.88 | 90.73 | 90.92 | 84.88 | 68.55 | 59.75 | 50.76 | 69.83 | |||||||||||||
1972 | 50.79 | 58.98 | 68.45 | 69.32 | 75.97 | 83.90 | 91.60 | 87.97 | 82.70 | 71.40 | 58.12 | 52.03 | 70.94 | |||||||||||||
1973 | 51.11 | 57.61 | 58.29 | 66.35 | 77.00 | 84.95 | 88.92 | 89.23 | 81.92 | 73.53 | 61.45 | 54.90 | 70.44 | |||||||||||||
1974 | 54.03 | 56.22 | a | 62.89 | 68.72 | 75.74 | 86.87 | 89.18 | 88.34 | 86.60 | 74.37 | 61.82 | 51.29 | 71.34 | ||||||||||||
1975 | 52.52 | 54.93 | 59.89 | 61.63 | 73.29 | 82.98 | 90.11 | 89.63 | 86.48 | 71.37 | 61.22 | a | 54.32 | 69.87 | ||||||||||||
1976 | 53.66 | 58.09 | 59.66 | 64.28 | 76.52 | 83.43 | 89.34 | 86.08 | 80.95 | 73.16 | 63.28 | 54.08 | 70.21 | |||||||||||||
1977 | 53.85 | 60.21 | 58.39 | 68.95 | 70.02 | 85.83 | 90.79 | 89.29 | 84.30 | 76.23 | 63.97 | 57.74 | 71.63 | |||||||||||||
1978 | 55.23 | 57.73 | 65.38 | a | 67.18 | 76.76 | 89.23 | 92.48 | 90.06 | 83.13 | 78.42 | 61.03 | 50.73 | 72.28 | ||||||||||||
1979 | 50.34 | 55.95 | 61.32 | 68.82 | 75.47 | 85.87 | 90.47 | 87.34 | 88.55 | 76.32 | 59.93 | 56.55 | 71.41 | |||||||||||||
1980 | 58.44 | 60.93 | 60.79 | 67.72 | 71.61 | 84.12 | 92.61 | 89.44 | 84.43 | 74.92 | 62.68 | 59.21 | 72.24 | |||||||||||||
1981 | 59.74 | 59.54 | 62.29 | 70.73 | 76.21 | 88.87 | 92.35 | 93.00 | 87.23 | 72.42 | 65.87 | 58.19 | 73.87 | |||||||||||||
1982 | 54.56 | 60.70 | 61.94 | 69.00 | 75.39 | 81.62 | 89.18 | 90.98 | 83.40 | 71.98 | 60.33 | 54.52 | 71.13 | |||||||||||||
1983 | 57.08 | 58.89 | 63.82 | 65.32 | 76.97 | 82.70 | 90.73 | 89.32 | a | 89.37 | 76.48 | 64.37 | 58.06 | 72.76 | ||||||||||||
1984 | 57.73 | 59.59 | 65.19 | 68.37 | 81.34 | 84.45 | ----- | z | 91.50 | 88.90 | 72.42 | 61.88 | 54.21 | 71.42 | a | |||||||||||
1985 | 54.29 | 56.09 | 62.77 | 71.90 | 77.79 | 87.30 | 93.13 | 91.35 | 80.62 | 74.06 | 61.00 | 56.45 | 72.23 | |||||||||||||
1986 | 59.71 | 61.61 | 67.18 | 70.83 | 76.84 | 86.60 | 88.55 | 92.42 | 79.98 | 71.92 | 63.57 | 55.27 | 72.87 | |||||||||||||
1987 | 52.85 | 57.93 | 61.47 | 73.00 | 76.35 | 85.43 | 87.48 | 89.65 | 84.85 | 78.05 | 61.98 | 51.82 | 71.74 | |||||||||||||
1988 | 53.40 | 60.19 | 64.47 | 68.65 | 76.13 | 83.08 | 90.76 | 90.19 | 84.22 | a | 79.74 | 64.13 | 54.89 | 72.49 | ||||||||||||
1989 | 52.42 | 58.59 | 67.65 | 75.60 | 78.19 | 84.83 | 91.71 | 89.03 | 85.62 | 74.76 | 63.48 | 55.00 | 73.07 | |||||||||||||
1990 | 53.74 | 55.80 | 64.68 | 72.23 | 75.39 | 85.83 | 91.89 | 88.87 | 86.37 | 74.84 | 63.23 | 50.77 | 71.97 | |||||||||||||
1991 | 54.03 | 62.41 | 58.85 | 68.58 | 74.10 | 80.67 | 88.23 | 88.69 | 86.03 | 78.73 | 62.47 | 54.10 | 71.41 | |||||||||||||
1992 | 53.35 | 61.09 | 62.26 | 72.62 | 78.84 | 83.53 | 89.58 | 91.26 | 87.02 | 76.13 | 59.76 | a | 50.40 | 72.15 | ||||||||||||
1993 | 53.62 | a | 57.25 | 65.56 | 71.22 | 77.73 | 83.97 | 86.77 | 89.95 | 85.23 | 76.95 | 60.77 | 54.61 | 71.97 | ||||||||||||
1994 | 56.56 | 55.73 | 65.90 | 71.28 | 74.81 | 88.02 | 91.37 | 93.56 | 87.40 | 73.71 | 57.18 | 53.76 | 72.44 | |||||||||||||
1995 | 55.50 | 64.11 | 64.56 | 68.27 | b | 72.65 | 81.22 | 90.16 | 93.65 | 89.32 | 75.76 | 67.50 | 57.69 | 73.36 | ||||||||||||
1996 | 56.60 | 62.57 | 64.85 | 71.47 | 79.02 | 86.52 | 94.03 | 94.52 | 86.27 | 76.11 | 64.43 | 56.37 | 74.40 | |||||||||||||
1997 | 57.94 | 58.57 | 66.85 | 70.68 | 82.79 | 83.42 | 88.76 | 94.23 | 89.32 | 73.69 | 65.63 | 53.48 | 73.78 | |||||||||||||
1998 | 56.79 | 57.68 | 62.98 | a | 66.50 | 73.35 | 81.75 | 92.84 | 93.98 | 86.45 | 73.21 | 62.33 | 53.93 | a | 71.82 | |||||||||||
1999 | 56.85 | 58.80 | 62.02 | 64.45 | a | 74.71 | 81.32 | 89.15 | a | 89.13 | 85.68 | 77.05 | 65.53 | 55.98 | 71.72 | |||||||||||
2000 | 57.84 | 60.16 | 62.94 | 72.77 | 80.10 | 86.50 | 89.16 | 91.74 | 85.07 | 71.98 | 57.20 | 57.45 | 72.74 | |||||||||||||
2001 | 54.05 | 57.38 | b | 65.98 | a | 68.65 | 82.19 | 87.75 | 90.11 | 91.42 | 87.27 | 77.81 | 67.27 | 52.33 | a | 73.52 | ||||||||||
2002 | 54.82 | 57.88 | 62.08 | a | 70.72 | a | 76.45 | 87.00 | 91.42 | 90.79 | 88.22 | 73.39 | 64.42 | 55.27 | 72.71 | |||||||||||
2003 | 61.18 | 59.39 | a | 64.44 | 66.78 | 77.06 | 83.62 | a | 93.19 | 92.82 | 89.02 | a | 81.58 | 60.65 | 55.40 | 73.76 | ||||||||||
2004 | 55.89 | 56.32 | a | 70.90 | 72.76 | c | 79.47 | 85.15 | 90.87 | 91.52 | 85.66 | a | 73.83 | a | 60.32 | 55.85 | 73.21 | |||||||||
2005 | 57.72 | a | 59.38 | 65.60 | 69.18 | 79.03 | 85.13 | 94.40 | 93.13 | ----- | z | 76.08 | a | 65.73 | 57.02 | a | 72.95 | a | ||||||||
2006 | 57.00 | a | 60.71 | 61.34 | 68.90 | 80.55 | a | 90.30 | 96.42 | a | 92.02 | a | 85.88 | 74.45 | 66.63 | 54.85 | 74.09 | |||||||||
2007 | 52.95 | c | 60.73 | b | 67.84 | b | 70.48 | g | ----- | z | 86.74 | i | 94.11 | i | 94.63 | 86.56 | d | ----- | z | ----- | z | ----- | z | 72.54 | g | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.15 | 58.43 | 63.30 | 69.63 | 76.97 | 84.79 | 91.36 | 91.15 | 85.95 | 74.71 | 62.43 | 54.56 | 72.24 | |||||||||||||
S.D. | 2.91 | 2.76 | 3.06 | 3.14 | 3.06 | 2.62 | 2.15 | 2.08 | 2.81 | 2.83 | 2.72 | 2.54 | 1.23 | |||||||||||||
SKEW | -0.40 | 0.12 | 0.51 | 0.01 | 0.24 | -0.22 | 0.13 | -0.25 | -0.12 | 0.14 | 0.00 | -0.01 | -0.16 | |||||||||||||
MAX | 61.18 | 64.41 | 74.50 | 78.12 | 85.32 | 90.30 | 96.42 | 95.19 | 92.28 | 82.47 | 68.88 | 61.58 | 74.82 | |||||||||||||
MIN | 45.11 | 51.18 | 57.38 | 61.63 | 70.02 | 77.22 | 86.58 | 85.48 | 79.98 | 68.18 | 55.60 | 49.13 | 69.19 | |||||||||||||
YRS | 87 | 92 | 95 | 93 | 89 | 94 | 82 | 84 | 83 | 92 | 91 | 94 | 69 |