YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | 64.39 | c | 64.36 | 63.90 | 64.07 | 66.29 | 67.97 | 68.13 | 68.23 | 69.50 | 66.81 | 64.07 | 64.61 | 66.03 | ||||||||||||
1934 | 63.52 | 62.75 | 62.61 | 62.66 | a | 66.42 | 69.13 | 69.21 | c | 70.00 | 70.33 | 69.32 | 71.48 | c | 66.55 | 67.00 | ||||||||||
1935 | ----- | z | 64.26 | a | 64.16 | 64.30 | 67.65 | 69.57 | 70.55 | 71.03 | 71.80 | 69.10 | b | 67.61 | b | 66.08 | g | 68.00 | b | |||||||
1936 | 66.10 | j | 64.24 | 65.48 | d | 65.00 | g | 66.38 | g | 70.00 | p | 71.23 | 72.77 | 71.48 | g | 70.71 | 67.77 | 66.35 | 68.36 | e | ||||||
1937 | 63.87 | a | 63.59 | f | 63.97 | b | 67.07 | b | 68.32 | 70.63 | 71.03 | a | 70.71 | 70.41 | h | 70.77 | 68.40 | 66.32 | 68.11 | b | ||||||
1938 | 65.58 | 66.63 | a | 67.58 | 67.83 | 68.10 | 69.60 | 71.29 | 70.90 | b | 70.23 | 70.13 | 68.75 | j | 67.45 | 68.67 | a | |||||||||
1939 | 65.63 | a | 65.64 | 64.48 | 65.87 | 69.05 | k | 71.17 | 74.42 | ----- | z | ----- | z | 69.40 | p | 68.30 | 65.31 | b | 67.60 | d | ||||||
1940 | 64.23 | 63.72 | 63.60 | u | 66.80 | 68.32 | 70.20 | 72.87 | 73.52 | 70.97 | 70.48 | 68.80 | 66.48 | 68.76 | a | |||||||||||
1941 | 63.84 | 62.21 | 64.53 | a | 66.10 | a | 67.61 | 69.30 | 70.93 | a | 72.35 | 71.93 | a | 71.03 | a | 68.31 | a | 65.77 | 67.83 | |||||||
1942 | 62.71 | 64.21 | 63.81 | 65.53 | 67.29 | 66.90 | 71.74 | 72.35 | 72.17 | 70.84 | 68.77 | 66.35 | 67.72 | |||||||||||||
1943 | 64.94 | 64.85 | b | 63.55 | 67.60 | 67.65 | 71.13 | 72.74 | 72.97 | 72.03 | a | 70.55 | 68.80 | 66.74 | 68.63 | |||||||||||
1944 | 64.10 | 64.43 | a | 65.16 | 68.63 | 69.10 | 70.20 | 71.97 | a | 72.24 | b | 71.07 | 70.61 | 68.83 | 67.26 | 68.63 | ||||||||||
1945 | 62.90 | 65.46 | 67.32 | 65.29 | b | 67.12 | e | 71.50 | 71.26 | 73.03 | 71.10 | 70.35 | 68.30 | 64.68 | 68.19 | |||||||||||
1946 | 65.58 | 64.75 | 67.65 | 67.20 | 67.84 | 71.60 | 71.61 | 72.74 | 71.63 | 70.77 | 66.90 | 65.52 | 68.65 | |||||||||||||
1947 | 61.71 | 62.07 | 63.58 | 65.57 | 66.68 | 70.23 | 71.23 | 72.23 | 69.93 | 70.58 | 66.31 | a | 65.97 | b | 67.17 | |||||||||||
1948 | 61.94 | 62.03 | 64.42 | 64.86 | a | 67.30 | a | 68.73 | 70.58 | 71.94 | 70.70 | 68.71 | ----- | z | ----- | z | 67.12 | b | ||||||||
1949 | 64.00 | b | 63.07 | 64.39 | 66.03 | a | 67.71 | 68.23 | 70.68 | 71.29 | 72.00 | p | 69.35 | 67.03 | 66.45 | 67.11 | a | |||||||||
1950 | 64.48 | 67.68 | 65.65 | 67.03 | 68.42 | 68.27 | 70.90 | 71.03 | a | 70.63 | 71.53 | a | 68.07 | 65.42 | 68.26 | |||||||||||
1951 | 65.57 | c | 65.46 | b | 67.21 | c | 65.11 | b | 67.62 | e | 68.78 | c | 70.37 | l | 71.69 | r | 70.79 | k | 68.88 | g | 67.00 | h | 66.28 | b | 66.57 | e |
1952 | 64.97 | b | 65.23 | c | 65.13 | 65.73 | 66.45 | 69.69 | a | 71.30 | a | 70.68 | 70.64 | b | 69.55 | b | 68.89 | b | 65.26 | 67.79 | ||||||
1953 | 64.10 | 65.04 | 65.94 | 66.73 | 67.81 | 69.07 | 68.97 | 69.74 | 69.60 | 69.61 | ----- | z | ----- | z | 67.66 | b | ||||||||||
1954 | 61.94 | 64.68 | 64.29 | c | 66.50 | 68.43 | a | ----- | z | 70.26 | 70.67 | y | 70.80 | j | 69.74 | 68.67 | 66.29 | 66.75 | c | |||||||
1955 | 66.16 | 65.71 | 63.87 | 66.63 | 68.68 | 69.63 | 69.45 | 69.26 | 69.17 | 69.32 | ----- | z | 67.39 | 67.75 | a | |||||||||||
1956 | 68.16 | 65.31 | 66.81 | 66.23 | 68.13 | 68.53 | 68.87 | 70.55 | 70.10 | 68.68 | 65.63 | 62.94 | 67.49 | |||||||||||||
1957 | 63.10 | a | 60.89 | ----- | z | 61.60 | 62.55 | 65.57 | 68.03 | 68.74 | 68.07 | 65.96 | f | 65.13 | 63.93 | a | 64.76 | b | ||||||||
1958 | 58.77 | e | 59.39 | 58.84 | 60.23 | 61.48 | 62.29 | i | 63.35 | h | 65.42 | 65.20 | 62.83 | a | 62.25 | v | 59.21 | g | 61.52 | d | ||||||
1959 | 56.19 | 56.11 | 58.23 | e | 63.03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.39 | h | |||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | 65.26 | i | 67.13 | 68.13 | 68.74 | 70.97 | 71.39 | 71.65 | 72.30 | 70.68 | 70.23 | 66.81 | 69.80 | b | ||||||||||
2000 | 64.61 | 64.46 | a | 67.55 | k | 66.50 | 69.48 | 71.47 | 73.10 | 72.19 | 72.13 | 72.61 | 71.17 | 66.26 | 69.45 | a | ||||||||||
2001 | 66.30 | a | 67.40 | w | 66.70 | a | 67.93 | 68.73 | t | 71.78 | c | 72.71 | 73.39 | 73.57 | i | 71.43 | a | 69.40 | 69.36 | c | 69.89 | c | ||||
2002 | 64.72 | f | 64.79 | 65.03 | 68.00 | 70.10 | 70.77 | q | ----- | z | 77.25 | k | 75.47 | 69.00 | a | 66.27 | 65.42 | 68.01 | d | |||||||
2003 | 59.73 | t | 63.54 | 65.74 | 68.77 | 69.84 | 69.43 | 73.36 | t | 74.14 | q | 72.69 | n | 70.10 | k | 68.17 | l | 65.52 | h | 67.46 | g | |||||
2004 | 59.10 | k | 65.00 | k | 60.70 | h | 63.76 | i | 64.47 | l | 70.85 | j | 70.90 | j | ----- | z | 68.79 | k | 68.00 | k | 66.75 | n | 64.48 | h | ----- | z |
2005 | 62.89 | v | 63.07 | n | ----- | z | 69.71 | m | 70.33 | j | 72.14 | i | 72.42 | l | 72.73 | i | 72.70 | j | 70.14 | j | 70.25 | j | 66.62 | j | ----- | z |
2006 | 67.79 | l | 64.89 | i | 67.95 | i | 67.84 | k | 67.23 | i | 71.85 | j | 72.80 | k | 72.00 | x | 71.75 | v | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 63.83 | 63.90 | 64.73 | 65.92 | 67.54 | 69.60 | 70.98 | 71.19 | 70.73 | 69.82 | 68.05 | 66.04 | 67.78 | |||||||||||||
S.D. | 2.36 | 2.27 | 2.20 | 2.01 | 1.84 | 1.49 | 1.52 | 1.84 | 1.89 | 1.80 | 1.75 | 1.24 | 0.78 | |||||||||||||
SKEW | -1.38 | -1.58 | -1.29 | -1.04 | -1.86 | -0.64 | -0.07 | -1.28 | -0.50 | -2.24 | -0.24 | -0.04 | -0.81 | |||||||||||||
MAX | 68.16 | 67.68 | 67.65 | 68.77 | 70.10 | 71.78 | 74.42 | 73.52 | 75.47 | 72.61 | 71.48 | 69.36 | 68.65 | |||||||||||||
MIN | 56.19 | 56.11 | 58.23 | 60.23 | 61.48 | 65.57 | 68.03 | 65.42 | 65.20 | 62.83 | 64.07 | 62.94 | 66.03 | |||||||||||||
YRS | 27 | 29 | 29 | 31 | 28 | 27 | 27 | 26 | 23 | 27 | 24 | 26 | 12 |