YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | 56.27 | 57.32 | 61.37 | 61.47 | 60.16 | 63.77 | 65.79 | 66.27 | 65.98 | 65.95 | 64.43 | 54.52 | 61.94 | |||||||||||||
1915 | 55.19 | 55.36 | 59.37 | 59.73 | 60.65 | 64.80 | 67.48 | 69.52 | 66.48 | 62.73 | 59.63 | 55.52 | 61.37 | |||||||||||||
1916 | 52.48 | 56.34 | 59.16 | 60.27 | 60.85 | 61.47 | 64.98 | 66.98 | 64.35 | 59.29 | 56.50 | 52.42 | 59.59 | |||||||||||||
1917 | 51.60 | 54.73 | 54.56 | 56.97 | 58.37 | 63.72 | 68.92 | 68.56 | 68.15 | 64.69 | 60.80 | 58.60 | 60.81 | |||||||||||||
1918 | 54.45 | 55.07 | 58.50 | 60.42 | 60.79 | 66.83 | 68.00 | 69.85 | 70.53 | 68.10 | 59.78 | 54.82 | 62.26 | |||||||||||||
1919 | 56.63 | 53.62 | 55.03 | 59.23 | 60.97 | 66.12 | 68.58 | 68.32 | 66.50 | 61.98 | 58.57 | 56.55 | 61.01 | |||||||||||||
1920 | 54.63 | 56.78 | 55.56 | 57.62 | 59.79 | 63.65 | 66.95 | 70.47 | 66.15 | 61.47 | 58.28 | 54.77 | 60.51 | |||||||||||||
1921 | 53.55 | 55.16 | 57.48 | 57.38 | 58.47 | 63.10 | 68.40 | 68.24 | 66.77 | 64.52 | 60.48 | 59.27 | 61.07 | |||||||||||||
1922 | 52.50 | 53.71 | 54.58 | 56.30 | 60.31 | 64.33 | 67.69 | 70.66 | 69.98 | 64.02 | 57.92 | 57.98 | 60.83 | |||||||||||||
1923 | 56.26 | 55.23 | 58.40 | 59.02 | 63.18 | 62.28 | 67.02 | 67.79 | 68.22 | 64.44 | 63.93 | 57.48 | 61.94 | |||||||||||||
1924 | 55.26 | 58.95 | 56.65 | 59.35 | 62.98 | 65.47 | 66.95 | 67.05 | 66.43 | 60.53 | 60.07 | 54.05 | 61.14 | |||||||||||||
1925 | 54.47 | 56.61 | 57.21 | 58.60 | 62.31 | 64.62 | 70.29 | 68.79 | 66.58 | 63.65 | 60.77 | 60.31 | 62.02 | |||||||||||||
1926 | 56.68 | 59.71 | 62.42 | 63.40 | 63.82 | 66.25 | 67.61 | 69.34 | 66.00 | 64.06 | 63.87 | 55.11 | 63.19 | |||||||||||||
1927 | 55.42 | 56.45 | 56.55 | 58.18 | 61.45 | 63.32 | 69.15 | 68.92 | 66.48 | 64.65 | 63.33 | 56.00 | 61.66 | |||||||||||||
1928 | 57.76 | 57.47 | 59.44 | 59.52 | 63.00 | 64.03 | 66.53 | 67.16 | 66.15 | 62.24 | 60.25 | 56.08 | 61.64 | |||||||||||||
1929 | 54.35 | 53.16 | 55.63 | 57.52 | 62.73 | 65.20 | 69.45 | 72.02 | 68.13 | 66.69 | 62.10 | 60.29 | 62.27 | |||||||||||||
1930 | 55.89 | 57.95 | 59.66 | 61.95 | 60.03 | 64.62 | 69.63 | 70.26 | 66.93 | 64.82 | 62.98 | 57.06 | 62.65 | |||||||||||||
1931 | 57.69 | 59.21 | 61.90 | 63.75 | 66.24 | 68.70 | 73.56 | 73.82 | 69.72 | 66.56 | 57.27 | 53.79 | 64.35 | |||||||||||||
1932 | 52.21 | 55.53 | 59.00 | 60.18 | 61.82 | 63.82 | 65.61 | 66.05 | 65.62 | 63.16 | 64.15 | 54.24 | 60.95 | |||||||||||||
1933 | 52.81 | 52.73 | 57.05 | 57.83 | 58.15 | 61.57 | 65.45 | 66.63 | 62.73 | 62.35 | 61.45 | 55.13 | 59.49 | |||||||||||||
1934 | 56.11 | 58.29 | 61.76 | 62.33 | 64.71 | 64.02 | 68.95 | 69.05 | 69.70 | 64.94 | 61.23 | 59.10 | 63.35 | |||||||||||||
1935 | 55.97 | 57.41 | 54.55 | 59.92 | 61.55 | 63.35 | 67.85 | 70.45 | 67.30 | 64.10 | 57.98 | 57.42 | 61.49 | |||||||||||||
1936 | 56.53 | 56.29 | 57.39 | 58.17 | 63.27 | 65.28 | 70.55 | 71.31 | 68.08 | 65.02 | 63.73 | 58.10 | 62.81 | |||||||||||||
1937 | 49.26 | 54.43 | 56.63 | 59.70 | 62.11 | 64.88 | 68.35 | 68.74 | 69.35 | 64.63 | 60.08 | 60.26 | 61.54 | |||||||||||||
1938 | 58.45 | 57.16 | 57.19 | 59.93 | 61.52 | 63.22 | 66.79 | 69.52 | 70.43 | 63.60 | 59.23 | 59.63 | 62.22 | |||||||||||||
1939 | 55.52 | 52.38 | 55.15 | 60.95 | 62.27 | 64.83 | 69.06 | 71.00 | 73.17 | 67.44 | 62.73 | 60.35 | 62.90 | |||||||||||||
1940 | 58.15 | 57.90 | 60.32 | 62.60 | 64.77 | 65.20 | 68.40 | 69.10 | 68.72 | 66.47 | 61.10 | 60.77 | 63.62 | |||||||||||||
1941 | 57.56 | 59.93 | 62.02 | 60.88 | 67.23 | 66.45 | 69.44 | 70.77 | 67.97 | 65.53 | 63.43 | 57.52 | 64.06 | |||||||||||||
1942 | 57.71 | 55.57 | 57.90 | 60.20 | 63.32 | 64.87 | 69.60 | 70.10 | 67.75 | 65.94 | 60.97 | 57.47 | 62.62 | |||||||||||||
1943 | 56.92 | 59.70 | 59.98 | 61.05 | 64.98 | 65.15 | 69.06 | 71.19 | 68.68 | 65.74 | 61.70 | 57.82 | 63.50 | |||||||||||||
1944 | 56.34 | 54.59 | 58.73 | 59.52 | 62.82 | 64.15 | 66.73 | 69.31 | 66.88 | 64.58 | 59.80 | 58.21 | 61.80 | |||||||||||||
1945 | 55.27 | 56.79 | 55.81 | 58.35 | 62.63 | 64.95 | 69.05 | 71.87 | 71.38 | 67.35 | 60.03 | 57.26 | 62.56 | |||||||||||||
1946 | 56.10 | 54.43 | 57.10 | 62.43 | 63.71 | 67.97 | 70.74 | 72.35 | 71.05 | 64.16 | 58.20 | 57.10 | 62.94 | |||||||||||||
1947 | 53.50 | 58.54 | 60.76 | 62.67 | 63.90 | 66.70 | 69.45 | 70.92 | 71.12 | 66.53 | 58.37 | 55.77 | 63.19 | |||||||||||||
1948 | 55.71 | 54.14 | 55.89 | 61.17 | 62.45 | 64.62 | 66.97 | 68.29 | 68.32 | 64.08 | 59.98 | 53.63 | 61.27 | |||||||||||||
1949 | 47.79 | 52.73 | 56.16 | 61.30 | 62.95 | 67.18 | 69.32 | 70.19 | 69.97 | 64.29 | 64.65 | 54.85 | 61.78 | |||||||||||||
1950 | 52.02 | 55.57 | 58.24 | 60.62 | 61.11 | 64.12 | 69.61 | 68.21 | 67.42 | 66.77 | 62.45 | 59.71 | 62.15 | |||||||||||||
1951 | 55.63 | 55.57 | 58.69 | 60.70 | 62.13 | 65.68 | 69.27 | 68.95 | 67.75 | 66.73 | 61.52 | 55.47 | 62.34 | |||||||||||||
1952 | 54.35 | 57.81 | 55.87 | 59.68 | 64.06 | 63.87 | 68.24 | 70.21 | 70.43 | 65.15 | 59.58 | 56.39 | 62.14 | |||||||||||||
1953 | 59.97 | 56.98 | 57.65 | 58.90 | 62.85 | 64.75 | 70.74 | 69.89 | 68.10 | 67.42 | 63.08 | 57.63 | 63.16 | |||||||||||||
1954 | 55.00 | 61.18 | 57.19 | 60.95 | 62.90 | 65.02 | 71.85 | 71.00 | 69.30 | 64.15 | 63.65 | 58.15 | 63.36 | |||||||||||||
1955 | 53.94 | 55.46 | 59.66 | 59.63 | 61.73 | 64.70 | 68.23 | 72.39 | 71.45 | 63.26 | 60.00 | 57.13 | 62.30 | |||||||||||||
1956 | 55.42 | 53.48 | 58.08 | 58.73 | 64.45 | 66.30 | 69.35 | 69.68 | 72.05 | 65.73 | 64.17 | 59.85 | 63.11 | |||||||||||||
1957 | 56.44 | 60.07 | 59.65 | 60.70 | 63.16 | 68.05 | 71.32 | 73.26 | 70.03 | 65.56 | 60.67 | 61.35 | 64.19 | |||||||||||||
1958 | 59.42 | 60.48 | 57.58 | 63.73 | 65.85 | 67.95 | 70.06 | 72.97 | 72.68 | 70.90 | 61.88 | 61.92 | 65.45 | |||||||||||||
1959 | 59.73 | 57.07 | 63.26 | 64.62 | 64.31 | 68.20 | 73.65 | 73.52 | 71.55 | 67.23 | 65.30 | 60.16 | 65.71 | |||||||||||||
1960 | 54.84 | 56.86 | 59.97 | 62.85 | 64.77 | 66.43 | 71.13 | 71.21 | 72.27 | 65.95 | 60.47 | 56.27 | 63.59 | |||||||||||||
1961 | 60.69 | 59.00 | 58.94 | 61.90 | 61.50 | 64.72 | 70.06 | 72.55 | 69.53 | 66.68 | 60.28 | 56.08 | 63.49 | |||||||||||||
1962 | 56.68 | 56.50 | 55.73 | 61.73 | 62.55 | 63.93 | 68.21 | 70.52 | 68.37 | 64.58 | 59.77 | 56.39 | 62.08 | |||||||||||||
1963 | 55.05 | 61.21 | 57.44 | 58.73 | 63.60 | 64.70 | 68.19 | 72.03 | 74.28 | 68.15 | 61.15 | 58.48 | 63.58 | |||||||||||||
1964 | 55.24 | 56.69 | 57.74 | 60.22 | 60.87 | 63.97 | 69.21 | 70.68 | 67.73 | 68.56 | 59.07 | 55.60 | 62.13 | |||||||||||||
1965 | 55.95 | 55.89 | 58.56 | 60.67 | 62.47 | 63.72 | 67.71 | 71.97 | 68.48 | 69.39 | 60.85 | 55.11 | 62.56 | |||||||||||||
1966 | 53.89 | 54.55 | 58.05 | 61.28 | 63.44 | 66.48 | 69.19 | 72.56 | 69.88 | 67.60 | 61.83 | 57.21 | 63.00 | |||||||||||||
1967 | 55.03 | 57.73 | 59.00 | 56.53 | 63.50 | 63.58 | 70.37 | 73.08 | 72.00 | 68.10 | 64.12 | 55.47 | 63.21 | |||||||||||||
1968 | 57.18 | 60.71 | 60.65 | 62.37 | 63.89 | 65.78 | 71.66 | 72.18 | 71.23 | 66.53 | 61.70 | 54.90 | 64.06 | |||||||||||||
1969 | 58.11 | 54.91 | 56.76 | 61.67 | 62.85 | 65.47 | 69.40 | 72.79 | 69.87 | 66.03 | 64.10 | 59.13 | 63.42 | |||||||||||||
1970 | 56.98 | 59.70 | 60.44 | 60.05 | 63.55 | 65.62 | 70.34 | 72.77 | 69.65 | 66.26 | 61.38 | 55.39 | 63.51 | |||||||||||||
1971 | 54.26 | 55.38 | 57.77 | 60.67 | 61.44 | 64.92 | 69.32 | 75.37 | 72.22 | 65.66 | 59.50 | 54.15 | 62.55 | |||||||||||||
1972 | 54.84 | 57.81 | 60.21 | 62.28 | 64.66 | 67.00 | 72.73 | 72.16 | 68.70 | 65.55 | 59.77 | 57.52 | 63.60 | |||||||||||||
1973 | 55.53 | 59.93 | 58.03 | 61.45 | 63.37 | 67.95 | 69.06 | 70.42 | 68.83 | 66.81 | 60.57 | 58.18 | 63.34 | |||||||||||||
1974 | 56.84 | 58.16 | 59.08 | 61.95 | 63.29 | 66.93 | 71.37 | 70.15 | 70.23 | 66.73 | 62.18 | 56.29 | 63.60 | |||||||||||||
1975 | 56.06 | 56.34 | 57.45 | 58.73 | 62.13 | 65.00 | 69.34 | 68.90 | 71.47 | 65.84 | 60.37 | 56.85 | 62.37 | |||||||||||||
1976 | 58.87 | 59.60 | 60.31 | 60.98 | 65.13 | 69.68 | 71.10 | 72.44 | 73.77 | 71.13 | 66.80 | 60.63 | 65.87 | |||||||||||||
1977 | 60.27 | 61.66 | 57.47 | 61.40 | 61.87 | 65.78 | 71.61 | 73.06 | 72.17 | 68.90 | 64.87 | 63.24 | 65.19 | |||||||||||||
1978 | 60.95 | 60.84 | 64.31 | 63.38 | 68.15 | 71.23 | 71.60 | 72.90 | 73.93 | 70.11 | 61.63 | 55.24 | 66.19 | |||||||||||||
1979 | 56.82 | 56.91 | 60.13 | 63.40 | 65.52 | 70.23 | 71.74 | 73.87 | 76.25 | 68.66 | 62.38 | 60.58 | 65.54 | |||||||||||||
1980 | 61.06 | 63.50 | 61.48 | 63.88 | 63.77 | 68.43 | 72.90 | 74.15 | 70.40 | 67.31 | 62.63 | 60.77 | 65.86 | |||||||||||||
1981 | 61.31 | 62.16 | 61.03 | 64.35 | 67.29 | 72.87 | 75.60 | 75.84 | 73.62 | 67.05 | 63.50 | 60.29 | 67.07 | |||||||||||||
1982 | 56.53 | 60.73 | 60.50 | 63.72 | 65.76 | 66.68 | 71.84 | 73.48 | 73.08 | 70.10 | 62.05 | 57.37 | 65.15 | |||||||||||||
1983 | 60.68 | 60.88 | 61.94 | 62.37 | 66.16 | 68.08 | 72.52 | 77.40 | 76.80 | 72.23 | 64.32 | 60.60 | 67.00 | |||||||||||||
1984 | 61.23 | 60.14 | 63.63 | 64.33 | 68.08 | 69.92 | 77.18 | 76.53 | 78.88 | 68.45 | 61.42 | 56.68 | 67.21 | |||||||||||||
1985 | 57.03 | 57.12 | 58.85 | 63.55 | 64.74 | 68.98 | 75.29 | 72.32 | 69.83 | 67.94 | 60.03 | 57.97 | 64.47 | |||||||||||||
1986 | 60.92 | 58.89 | 60.53 | 62.82 | 64.56 | 67.40 | 69.60 | 71.77 | 66.93 | 65.42 | 62.75 | 57.60 | 64.10 | |||||||||||||
1987 | 55.32 | 57.98 | 59.10 | 63.37 | 64.63 | 65.78 | 67.02 | 69.87 | 69.90 | 69.50 | 61.80 | 53.92 | 63.18 | |||||||||||||
1988 | 56.66 | 59.93 | 61.63 | 62.35 | 63.84 | 64.90 | 70.39 | 71.00 | 70.02 | 66.68 | 60.07 | 56.00 | 63.62 | |||||||||||||
1989 | 54.71 | 56.66 | 59.74 | 65.58 | 63.68 | 65.93 | 70.05 | 70.98 | 70.33 | 66.26 | 63.10 | 58.71 | 63.81 | |||||||||||||
1990 | 56.60 | 55.21 | 58.74 | 63.20 | 64.23 | 68.93 | 72.34 | 71.60 | 71.70 | 68.63 | 62.65 | 55.61 | 64.12 | |||||||||||||
1991 | 57.39 | 59.38 | 56.52 | 61.65 | 62.05 | 64.13 | 67.39 | 68.92 | 69.37 | 67.94 | 62.25 | 57.26 | 62.85 | |||||||||||||
1992 | 57.39 | 61.12 | 60.37 | 66.95 | 67.94 | 68.05 | 71.76 | 74.87 | 72.40 | 68.21 | 62.60 | 55.27 | 65.58 | |||||||||||||
1993 | 56.90 | 57.98 | 61.26 | 63.77 | 66.02 | 68.55 | 69.77 | 70.16 | 69.00 | 67.31 | 61.55 | 57.00 | 64.11 | |||||||||||||
1994 | 57.82 | 56.43 | 60.35 | 60.97 | 62.10 | 68.12 | 69.48 | 74.00 | 72.50 | 66.79 | 56.40 | 55.84 | 63.40 | |||||||||||||
1995 | 56.90 | 61.41 | 60.39 | 61.47 | 62.03 | 64.78 | 68.97 | 71.90 | 71.42 | 67.11 | 63.17 | 58.27 | 63.99 | |||||||||||||
1996 | 57.61 | 58.79 | 60.06 | 64.63 | 66.77 | 67.82 | 70.02 | 72.81 | 70.62 | 64.24 | 61.55 | 57.81 | 64.39 | |||||||||||||
1997 | 57.98 | 58.38 | 61.58 | 62.45 | 68.65 | 67.43 | 69.23 | 72.90 | 75.20 | 68.68 | 63.97 | 57.40 | 65.32 | |||||||||||||
1998 | 58.19 | 57.29 | 59.23 | 59.63 | 62.77 | 65.63 | 68.74 | 72.74 | 70.27 | 65.68 | 59.67 | 55.37 | 62.93 | |||||||||||||
1999 | 57.53 | 57.71 | 58.27 | 58.88 | 60.48 | 62.80 | 68.42 | 68.00 | 66.92 | 68.77 | 60.48 | 57.77 | 62.17 | |||||||||||||
2000 | 58.21 | 58.98 | 58.13 | 62.35 | 64.56 | 68.15 | 69.11 | 72.02 | 70.45 | 65.15 | 58.37 | 58.06 | 63.63 | |||||||||||||
2001 | 54.73 | 54.84 | 58.87 | 58.53 | 63.63 | 67.57 | 68.98 | 69.58 | 68.23 | 66.32 | 61.35 | 55.45 | 62.34 | |||||||||||||
2002 | 55.65 | 57.48 | 57.65 | 59.52 | 61.82 | 64.68 | 67.82 | 68.82 | 70.03 | 64.21 | 63.42 | 56.76 | 62.32 | |||||||||||||
2003 | 61.66 | 59.02 | 60.26 | 59.87 | 62.37 | 64.18 | 70.00 | 72.69 | 69.85 | 67.71 | 60.78 | 56.92 | 63.78 | |||||||||||||
2004 | 56.82 | 56.67 | 62.61 | 64.37 | 68.47 | 67.82 | 72.03 | 70.79 | 72.63 | 65.34 | 60.07 | 57.74 | 64.61 | |||||||||||||
2005 | 58.79 | 59.82 | 60.97 | 61.80 | 65.44 | 66.38 | 69.92 | 71.02 | 68.50 | 65.85 | 62.78 | 58.44 | 64.14 | |||||||||||||
2006 | 57.02 | 58.27 | 57.18 | 61.87 | 64.71 | 70.80 | 75.05 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.64 | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 56.36 | 57.44 | 58.83 | 61.06 | 63.31 | 65.88 | 69.57 | 70.96 | 69.76 | 66.08 | 61.39 | 57.29 | 63.16 | |||||||||||||
S.D. | 2.51 | 2.40 | 2.16 | 2.13 | 2.19 | 2.16 | 2.17 | 2.27 | 2.74 | 2.28 | 2.05 | 2.13 | 1.57 | |||||||||||||
SKEW | -0.32 | 0.07 | 0.13 | 0.09 | 0.26 | 0.63 | 0.76 | 0.22 | 0.50 | -0.09 | -0.10 | 0.35 | 0.31 | |||||||||||||
MAX | 61.66 | 63.50 | 64.31 | 66.95 | 68.65 | 72.87 | 77.18 | 77.40 | 78.88 | 72.23 | 66.80 | 63.24 | 67.21 | |||||||||||||
MIN | 47.79 | 52.38 | 54.55 | 56.30 | 58.15 | 61.47 | 64.98 | 66.05 | 62.73 | 59.29 | 56.40 | 52.42 | 59.49 | |||||||||||||
NO YRS | 93 | 93 | 93 | 93 | 93 | 93 | 92 | 92 | 92 | 92 | 92 | 92 | 92 |