YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.05 | 69.43 | b | 60.10 | 51.95 | 65.63 | h | |||
1921 | 52.52 | a | 59.18 | 65.62 | a | 67.02 | 73.60 | 85.28 | 92.37 | 90.21 | 84.48 | 75.56 | 63.38 | a | 57.43 | b | 72.22 | |||||||||
1922 | 50.16 | ----- | z | 58.98 | a | 64.17 | 76.58 | a | 86.12 | 92.27 | a | 90.83 | a | 88.08 | 73.37 | a | 58.43 | a | 56.98 | 72.36 | a | |||||
1923 | 57.00 | 57.73 | b | 60.00 | a | 67.47 | 77.74 | 79.17 | 90.34 | 90.12 | b | 82.38 | a | 71.31 | 64.03 | 54.83 | a | 71.01 | ||||||||
1924 | 53.72 | a | 62.24 | 59.87 | 67.17 | a | 79.10 | a | 87.55 | 91.23 | 90.50 | 86.43 | 70.23 | 63.12 | 52.98 | 72.01 | ||||||||||
1925 | 53.71 | 60.96 | a | 64.71 | 69.37 | 78.23 | 84.12 | 92.77 | 90.45 | 82.57 | 70.65 | a | 60.88 | 57.43 | a | 72.15 | ||||||||||
1926 | 52.56 | 60.39 | 65.90 | 72.37 | 76.92 | 86.62 | 91.11 | 90.95 | 85.33 | 75.21 | 64.34 | a | 52.48 | 72.85 | ||||||||||||
1927 | 55.31 | 60.84 | 62.32 | 69.77 | 77.15 | 84.18 | 92.37 | a | 90.82 | 83.63 | 74.40 | 64.87 | 53.34 | 72.42 | ||||||||||||
1928 | 55.67 | a | 58.23 | a | 65.84 | 70.29 | a | 79.69 | 85.38 | 91.45 | 91.23 | 87.57 | a | 74.37 | a | 62.74 | a | 55.15 | a | 73.13 | ||||||
1929 | 51.97 | a | 55.45 | 62.97 | a | 66.90 | 79.02 | 84.63 | 93.53 | 93.37 | 84.73 | 76.27 | 59.87 | ----- | z | 73.52 | a | |||||||||
1930 | 55.32 | q | 62.61 | 63.84 | 72.78 | 71.65 | 85.12 | ----- | z | 90.37 | 81.91 | b | 71.73 | 63.41 | a | 53.02 | a | 71.64 | b | |||||||
1931 | 54.22 | a | 58.68 | 64.53 | 72.63 | 79.24 | 84.97 | 95.19 | 90.50 | a | 82.93 | 72.73 | 58.89 | b | 52.23 | e | 72.23 | |||||||||
1932 | 49.84 | f | 57.15 | f | 63.98 | b | 69.20 | 76.74 | 83.65 | 91.82 | a | 92.21 | 87.61 | c | 72.74 | 65.03 | 50.13 | 75.31 | b | |||||||
1933 | 50.18 | a | 51.02 | a | 63.47 | 66.05 | 71.90 | 84.77 | 94.08 | 92.23 | 87.88 | 79.08 | 64.77 | 56.30 | a | 71.81 | ||||||||||
1934 | 56.10 | 61.85 | a | 71.92 | a | 75.15 | 81.26 | 81.05 | 93.00 | 92.11 | 85.38 | 75.74 | b | 63.82 | b | 57.04 | c | 74.53 | ||||||||
1935 | 53.38 | g | 59.66 | c | 58.83 | e | 69.21 | a | 73.61 | 87.66 | a | 90.86 | b | 90.67 | d | 87.76 | a | 72.70 | a | 58.48 | b | 55.98 | b | 73.22 | a | |
1936 | 54.12 | e | 58.15 | c | 65.34 | f | 72.36 | a | 80.02 | 86.50 | a | 91.70 | a | 92.58 | a | 84.28 | a | 73.33 | a | 62.80 | b | 54.94 | f | 75.58 | b | |
1937 | 42.65 | h | 55.66 | f | 61.04 | c | 68.37 | 77.27 | 84.22 | 93.45 | b | 94.14 | b | 90.40 | 76.24 | 64.46 | b | 59.96 | c | 76.95 | b | |||||
1938 | 57.06 | f | 56.70 | e | 60.59 | d | 69.64 | a | 75.69 | 84.97 | 90.45 | 91.31 | 88.22 | 72.16 | 56.98 | c | 56.90 | a | 73.05 | a | ||||||
1939 | 54.02 | d | 50.86 | 63.14 | f | ----- | z | 77.60 | a | 84.23 | 91.58 | a | 93.03 | a | 83.48 | 72.42 | 65.35 | 59.53 | 73.21 | b | ||||||
1940 | 58.13 | 57.81 | 64.95 | c | 70.60 | 80.97 | 87.90 | 91.15 | 92.40 | 85.25 | 75.55 | 60.22 | 58.37 | 73.61 | ||||||||||||
1941 | 54.66 | 60.93 | 63.42 | 65.50 | 78.39 | 81.80 | 91.81 | 87.87 | a | 79.85 | 70.11 | 63.15 | 56.00 | a | 71.12 | |||||||||||
1942 | 56.19 | 54.96 | 60.63 | 67.02 | 74.44 | 83.67 | 94.47 | 90.85 | 84.08 | 74.37 | 64.25 | 57.42 | 71.86 | |||||||||||||
1943 | 55.66 | 60.50 | 65.19 | 71.33 | 79.15 | 82.68 | 92.76 | 91.73 | 88.90 | 75.73 | 62.82 | 55.10 | 73.46 | |||||||||||||
1944 | 53.27 | 53.41 | 61.52 | 66.37 | 75.71 | 79.05 | 89.73 | a | 91.85 | 86.73 | 75.55 | 60.07 | 56.26 | 70.79 | ||||||||||||
1945 | 52.89 | 57.46 | 58.68 | 67.75 | 76.20 | a | 81.82 | 92.88 | b | 91.65 | a | 86.63 | 76.58 | a | 60.90 | 53.55 | b | 71.42 | ||||||||
1946 | 53.79 | 54.45 | 61.97 | 72.20 | 75.69 | 85.22 | 90.40 | 91.55 | 86.10 | 68.95 | 57.55 | a | 56.53 | 71.20 | ||||||||||||
1947 | 51.71 | 60.61 | 63.65 | 68.71 | a | 78.63 | 81.97 | 90.32 | 88.92 | 87.22 | 74.23 | 58.42 | 53.08 | 71.45 | ||||||||||||
1948 | 55.66 | 55.82 | a | 57.26 | 69.88 | 74.94 | 81.50 | 90.39 | 91.71 | 86.32 | 74.85 | 58.53 | 51.00 | 70.66 | ||||||||||||
1949 | 44.92 | 52.23 | 60.68 | 71.45 | 75.32 | a | 85.58 | 91.00 | 89.27 | 89.60 | 70.82 | 67.00 | 52.90 | 70.90 | ||||||||||||
1950 | 50.66 | 59.68 | 64.34 | 72.48 | 74.19 | 82.15 | 89.89 | 89.72 | a | 82.33 | 76.97 | 65.83 | 59.66 | 72.33 | ||||||||||||
1951 | 53.35 | 56.02 | a | 61.08 | 68.37 | 75.52 | a | 81.63 | 91.89 | 89.31 | 86.90 | 74.06 | 61.58 | 53.23 | 71.08 | |||||||||||
1952 | 50.53 | 56.16 | 57.79 | 69.62 | 80.60 | 81.47 | a | 90.68 | 92.40 | a | 86.97 | 79.65 | 58.98 | 52.82 | 71.47 | |||||||||||
1953 | 57.56 | 56.09 | a | 62.02 | 67.07 | 70.85 | 81.65 | 93.29 | 89.84 | 83.98 | 72.94 | 64.45 | 53.44 | 71.10 | ||||||||||||
1954 | 53.61 | 64.00 | 59.95 | b | ----- | z | 76.04 | r | 82.17 | 90.76 | 88.44 | 86.32 | 75.29 | b | 64.63 | 54.23 | 71.94 | b | ||||||||
1955 | 49.98 | 52.70 | a | 61.19 | 65.37 | 73.98 | 82.30 | 87.05 | 89.78 | b | 85.57 | 76.74 | 61.83 | 56.71 | 70.27 | |||||||||||
1956 | 56.36 | b | 51.88 | 62.39 | 67.32 | 75.81 | 84.98 | d | 87.95 | l | 88.00 | e | 87.70 | e | 72.55 | a | 60.37 | 54.97 | a | 69.30 | a | |||||
1957 | 54.16 | 62.14 | 63.26 | 68.28 | a | 72.19 | b | 86.08 | d | 92.10 | b | 89.17 | b | 83.74 | a | 71.18 | 58.38 | e | 56.46 | d | 71.43 | |||||
1958 | 54.78 | d | 59.38 | g | 59.16 | b | 69.54 | e | 80.67 | k | 83.44 | f | 90.12 | j | 91.44 | e | 86.25 | d | 77.63 | d | 60.83 | d | 59.41 | i | 71.37 | e |
1959 | 56.04 | e | 54.41 | f | 64.82 | 72.47 | 73.65 | 86.68 | 92.37 | a | 89.62 | c | 82.08 | 73.89 | 61.74 | a | 54.10 | 73.41 | a | |||||||
1960 | 49.28 | b | 53.76 | b | 65.52 | 69.40 | a | 74.74 | 87.00 | 91.08 | 90.17 | a | 85.05 | 71.95 | 59.95 | 52.09 | b | 70.83 | ||||||||
1961 | 54.81 | b | 57.59 | 61.03 | a | 68.63 | 73.06 | 85.42 | 89.90 | 89.44 | 80.10 | 70.73 | a | 57.38 | 52.39 | 70.04 | ||||||||||
1962 | 52.28 | d | 56.52 | 57.02 | a | 72.48 | 71.77 | 82.05 | 89.37 | 91.15 | a | 85.75 | 72.73 | a | 63.61 | b | 55.13 | 70.82 | ||||||||
1963 | 49.28 | b | 62.62 | ----- | z | 63.53 | 76.48 | 79.05 | 89.98 | 88.95 | 86.05 | 75.19 | 61.70 | 53.53 | a | 71.49 | a | |||||||||
1964 | 48.61 | 51.16 | a | 57.18 | 65.43 | 71.98 | b | 81.08 | 90.32 | a | 89.19 | 82.25 | 76.97 | a | 56.47 | 53.93 | a | 68.71 | ||||||||
1965 | 53.37 | 55.06 | b | 58.73 | a | 66.88 | 72.68 | 76.93 | 88.15 | a | 89.31 | 79.72 | 74.74 | 62.80 | 52.73 | 69.26 | ||||||||||
1966 | 49.63 | a | 52.19 | d | 62.02 | 70.42 | 78.05 | 83.28 | 90.21 | 91.95 | 85.52 | 72.26 | 63.10 | 55.29 | 71.16 | |||||||||||
1967 | 52.32 | 57.84 | 63.45 | 61.17 | 73.92 | 80.14 | a | 91.87 | 91.74 | 82.68 | 74.24 | 65.50 | a | ----- | z | 72.26 | a | |||||||||
1968 | 52.23 | 62.04 | a | 62.95 | 66.65 | 75.13 | 82.93 | a | 88.29 | 85.44 | 81.83 | 71.63 | a | 60.58 | 49.05 | a | 69.90 | |||||||||
1969 | 57.55 | 55.25 | 59.95 | 68.90 | 77.31 | 80.62 | 90.40 | b | 93.16 | 85.86 | a | 69.47 | 62.67 | 55.29 | 71.37 | |||||||||||
1970 | 53.11 | 59.07 | 60.85 | 63.18 | 75.98 | 83.45 | 91.55 | 91.85 | 82.73 | 70.31 | 61.72 | 52.97 | 70.57 | |||||||||||||
1971 | 53.42 | 56.84 | 61.98 | 66.17 | 70.25 | a | 81.05 | b | 91.10 | 89.98 | a | 84.68 | 67.98 | 58.60 | 50.82 | 69.41 | ||||||||||
1972 | 51.23 | a | 58.12 | 68.85 | 69.38 | 75.60 | 84.05 | 91.79 | 87.18 | 82.32 | 70.39 | 57.30 | 52.40 | 70.72 | ||||||||||||
1973 | 51.08 | 56.95 | 58.18 | 65.61 | c | 77.27 | 85.61 | c | 89.37 | 88.94 | 81.03 | 72.58 | a | 60.20 | b | 54.76 | 70.13 | |||||||||
1974 | 53.42 | 55.24 | a | 63.50 | 68.70 | 76.97 | 87.68 | 88.19 | b | 87.94 | f | 87.29 | a | 73.90 | 58.88 | 50.89 | 69.52 | a | ||||||||
1975 | 52.30 | a | 54.90 | c | 60.02 | b | 62.40 | 73.02 | 82.66 | b | 90.23 | 89.57 | b | 85.79 | d | 70.27 | 59.39 | h | 53.82 | 70.45 | a | |||||
1976 | 53.42 | 58.28 | 60.43 | a | 64.67 | 75.79 | 83.53 | 88.55 | 86.79 | 81.37 | 72.82 | 63.05 | 53.56 | 70.19 | ||||||||||||
1977 | 52.94 | 58.50 | 57.98 | 69.13 | 70.18 | 85.88 | 91.39 | 89.82 | 84.32 | 76.05 | 63.31 | a | 57.74 | 71.44 | ||||||||||||
1978 | 54.24 | 56.88 | 64.98 | a | 68.03 | 76.10 | 87.18 | 92.08 | 89.16 | 83.05 | 76.95 | 59.67 | 49.18 | 71.46 | ||||||||||||
1979 | 48.68 | 53.80 | a | 59.82 | a | 68.17 | 75.66 | 84.67 | 88.66 | 85.37 | a | 86.40 | 72.60 | 57.52 | a | 55.44 | 69.73 | |||||||||
1980 | 56.77 | 60.16 | 60.48 | 67.09 | a | 71.94 | 83.43 | 91.69 | 88.94 | 83.12 | 73.45 | 61.07 | 58.08 | 71.35 | ||||||||||||
1981 | 57.95 | 58.32 | 61.76 | 71.07 | 75.66 | 88.73 | 92.18 | a | 92.39 | 86.53 | 69.65 | a | 63.00 | 56.58 | 72.82 | |||||||||||
1982 | 52.60 | a | 58.88 | 60.31 | 68.43 | 74.47 | 80.65 | 89.77 | 89.90 | 83.47 | 69.97 | 58.95 | 52.97 | 70.03 | ||||||||||||
1983 | 54.67 | b | 56.66 | 62.27 | 64.62 | 76.06 | 82.98 | 90.87 | 88.55 | 88.43 | 74.24 | 61.87 | 55.73 | a | 71.41 | |||||||||||
1984 | 55.66 | 56.64 | 64.00 | 67.17 | 81.15 | 83.93 | 90.40 | 89.19 | 87.22 | 69.55 | 58.80 | 52.88 | b | 71.38 | ||||||||||||
1985 | 53.03 | 54.89 | ----- | z | ----- | z | 77.38 | a | 86.38 | 91.42 | 90.02 | 78.37 | 72.42 | 58.95 | 54.60 | 71.75 | b | |||||||||
1986 | 59.39 | 59.42 | b | 66.27 | 69.32 | 76.68 | 86.03 | 87.89 | 92.05 | 78.70 | 70.05 | 62.02 | 54.23 | a | 71.84 | |||||||||||
1987 | 52.22 | b | 56.94 | d | 60.32 | 73.14 | a | 76.47 | 85.33 | 87.32 | 88.85 | 84.07 | b | 77.21 | b | 60.05 | 50.90 | a | 71.07 | |||||||
1988 | 52.95 | 59.14 | 63.58 | a | 68.05 | b | 75.44 | 83.85 | 90.56 | 88.90 | 82.98 | 78.85 | 62.23 | b | 53.18 | a | 71.64 | |||||||||
1989 | 52.12 | b | 56.64 | 66.31 | 75.03 | a | 77.21 | 84.88 | 92.52 | c | 89.18 | 86.07 | b | 73.76 | b | 62.88 | 54.89 | d | 72.62 | |||||||
1990 | 52.63 | 53.77 | b | 63.95 | a | 71.20 | 74.79 | b | 86.90 | a | 91.82 | 89.40 | 85.46 | b | 74.40 | 61.75 | 51.03 | 71.43 | ||||||||
1991 | 53.73 | 62.11 | a | 58.19 | 67.65 | 73.48 | a | 80.63 | 87.52 | 89.94 | 85.57 | 77.37 | 62.53 | 54.68 | a | 71.12 | ||||||||||
1992 | 54.73 | 60.53 | 62.47 | 72.65 | 79.77 | 84.80 | 90.61 | 94.50 | 89.05 | 76.89 | 61.47 | a | 53.97 | b | 73.45 | |||||||||||
1993 | 55.55 | a | 56.77 | 65.55 | a | 71.87 | 79.35 | 84.58 | 88.32 | 90.15 | a | 85.55 | 75.85 | a | 59.87 | 54.34 | 72.31 | |||||||||
1994 | 55.47 | a | 55.48 | 65.23 | 70.00 | a | 75.21 | 88.55 | 91.44 | 93.29 | 87.32 | 72.17 | a | 57.03 | 53.58 | 72.06 | ||||||||||
1995 | 54.82 | 63.20 | e | 64.02 | f | 67.59 | c | 73.08 | 82.20 | 90.56 | 94.32 | 89.67 | 75.57 | a | 66.76 | e | 56.55 | a | 74.03 | a | ||||||
1996 | 56.32 | c | 61.90 | 64.33 | a | 71.41 | a | 79.65 | h | 85.90 | a | 93.82 | a | 93.82 | a | 85.12 | a | 73.81 | e | 64.38 | 56.12 | c | 73.36 | a | ||
1997 | 56.31 | 58.23 | b | 66.47 | 69.23 | 82.79 | b | 83.47 | a | 90.63 | d | 94.12 | a | 88.21 | f | 73.32 | a | 64.04 | g | 52.41 | d | 72.70 | b | |||
1998 | 56.15 | 56.67 | a | 62.02 | a | 65.38 | b | 72.83 | h | 81.06 | e | 92.90 | a | 94.44 | d | 85.58 | e | 72.52 | g | 62.23 | o | 52.38 | w | 74.27 | d | |
1999 | ----- | z | ----- | z | ----- | z | 65.25 | r | ----- | z | 81.47 | k | 90.25 | s | 90.34 | l | 88.66 | n | 78.83 | s | 68.11 | u | 55.56 | w | ----- | z |
2000 | 59.29 | q | 60.50 | u | 63.33 | v | 73.33 | u | 78.64 | q | 87.03 | m | ----- | z | 91.80 | p | ----- | z | ----- | z | 58.86 | w | 60.31 | w | ----- | z |
2001 | 56.07 | x | 52.07 | u | ----- | z | 64.78 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.16 | f | 65.67 | d | 51.52 | i | 65.67 | k |
2002 | 55.77 | p | 54.57 | u | 60.08 | y | 70.70 | g | 75.95 | i | 86.84 | k | 91.97 | m | 90.44 | o | 87.06 | m | 73.62 | j | 64.71 | r | 56.94 | v | ----- | z |
2003 | 60.53 | l | 58.53 | j | 63.53 | l | 67.45 | t | 78.36 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | 69.57 | h | 71.97 | k | 78.58 | m | 84.04 | q | 90.79 | j | 90.37 | l | 80.50 | u | 72.03 | p | 59.50 | p | 55.25 | k | ----- | z |
2005 | 56.79 | n | 58.84 | f | 63.27 | i | ----- | z | 85.92 | y | ----- | z | ----- | z | 96.75 | y | 86.83 | x | 78.33 | y | 71.10 | y | ----- | z | ----- | z |
2006 | ----- | z | 64.90 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 53.58 | 57.54 | 62.28 | 68.68 | 75.97 | 83.88 | 91.03 | 90.57 | 84.93 | 73.58 | 61.57 | 54.42 | 71.41 | |||||||||||||
S.D. | 2.58 | 3.17 | 2.88 | 2.86 | 2.77 | 2.46 | 1.69 | 1.95 | 2.63 | 2.62 | 2.60 | 2.38 | 1.13 | |||||||||||||
SKEW | -0.48 | -0.12 | 0.42 | -0.12 | 0.08 | -0.29 | -0.19 | -0.10 | -0.34 | 0.07 | -0.03 | 0.11 | 0.22 | |||||||||||||
MAX | 59.39 | 64.00 | 71.92 | 75.15 | 82.79 | 88.73 | 95.19 | 94.50 | 90.40 | 79.65 | 67.00 | 59.96 | 74.53 | |||||||||||||
MIN | 44.92 | 50.86 | 57.02 | 61.17 | 70.18 | 76.93 | 87.05 | 85.37 | 78.37 | 67.98 | 56.47 | 49.05 | 68.71 | |||||||||||||
YRS | 73 | 73 | 73 | 75 | 74 | 77 | 75 | 77 | 78 | 78 | 77 | 74 | 56 |