YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | 77.32 | c | 78.00 | 77.32 | 79.33 | 80.77 | 83.20 | 84.74 | 85.35 | 85.73 | 85.81 | 83.47 | 82.84 | 81.99 | ||||||||||||
1934 | 81.33 | a | 81.43 | 81.71 | 79.10 | a | 81.48 | 83.63 | 85.00 | h | 86.97 | 87.23 | 85.13 | 82.10 | a | 81.03 | 82.83 | a | ||||||||
1935 | 77.44 | d | 77.11 | 78.45 | 76.53 | 82.84 | 83.41 | a | 85.45 | 86.45 | 87.87 | 81.72 | b | 78.52 | a | 77.68 | i | 81.44 | a | |||||||
1936 | 78.00 | g | 77.41 | 73.55 | 73.38 | a | 73.37 | a | ----- | z | 79.19 | 80.00 | 79.58 | d | 80.97 | 79.13 | 72.35 | 76.89 | b | |||||||
1937 | 72.84 | 74.35 | k | 71.70 | d | 74.77 | 78.97 | 82.13 | 83.06 | 82.71 | 82.75 | r | 84.29 | 81.17 | 80.58 | 79.22 | b | |||||||||
1938 | 79.47 | a | 82.39 | 78.32 | 78.97 | 79.61 | 81.30 | 82.77 | 84.24 | b | 85.20 | 84.16 | 78.17 | x | 79.61 | 81.46 | a | |||||||||
1939 | 77.20 | a | 78.46 | 78.68 | 77.69 | a | 77.12 | w | 80.77 | 82.61 | 83.81 | o | 81.47 | 80.57 | x | 77.50 | 78.34 | b | 79.19 | c | ||||||
1940 | 79.55 | 79.03 | 80.48 | 80.93 | a | 81.19 | 83.66 | a | 85.26 | 83.61 | 84.37 | 83.11 | m | 81.73 | 79.06 | 81.72 | a | |||||||||
1941 | 79.65 | 76.46 | 75.74 | 79.17 | 79.19 | 82.07 | 82.65 | 83.48 | 84.83 | a | 82.35 | 79.10 | a | 75.77 | 80.04 | |||||||||||
1942 | 77.71 | 77.29 | 72.23 | 75.47 | 80.06 | 79.97 | 82.81 | 83.84 | 84.60 | 83.19 | 81.93 | 80.35 | 79.95 | |||||||||||||
1943 | 78.71 | 76.96 | a | 76.06 | 78.30 | 80.84 | 82.87 | 83.32 | 84.13 | 84.83 | 83.90 | 81.13 | 78.30 | d | 80.78 | |||||||||||
1944 | 78.39 | 77.44 | d | 78.55 | 78.17 | 80.07 | b | 81.57 | 82.97 | 83.65 | 84.13 | 81.23 | a | 78.80 | 76.23 | 80.10 | ||||||||||
1945 | 78.48 | 78.71 | 78.58 | 79.00 | 82.73 | e | 83.30 | 84.32 | 84.55 | 84.77 | 84.58 | 82.23 | 79.00 | 81.69 | ||||||||||||
1946 | 78.13 | 79.43 | 79.03 | 78.03 | 80.48 | 82.80 | 82.81 | 84.42 | 84.43 | 82.94 | 80.97 | 76.06 | 80.79 | |||||||||||||
1947 | 75.84 | 78.57 | 79.58 | 80.80 | 80.42 | 84.07 | 85.55 | 86.45 | 85.47 | 83.16 | 82.53 | 77.53 | a | 81.66 | ||||||||||||
1948 | 75.86 | b | 76.90 | 76.73 | a | 79.10 | 82.03 | 85.53 | 85.35 | 85.55 | 85.80 | 81.71 | 80.40 | 76.10 | 80.92 | |||||||||||
1949 | 77.97 | 79.46 | 79.06 | 79.43 | 82.39 | 84.43 | 84.61 | 85.61 | 84.60 | 84.45 | 79.83 | 78.71 | 81.71 | |||||||||||||
1950 | 78.35 | 78.11 | 79.00 | 78.77 | 81.31 | o | 83.33 | 83.71 | 84.87 | a | 85.37 | 84.63 | a | 80.53 | 76.55 | 81.20 | a | |||||||||
1951 | 78.86 | b | 78.56 | c | 79.93 | b | 81.82 | b | 82.81 | e | 84.92 | d | 85.63 | d | 84.23 | r | 85.79 | k | 84.58 | g | 82.05 | h | 80.45 | b | 81.62 | d |
1952 | 78.86 | b | 78.69 | c | 78.74 | 79.70 | 81.03 | a | 83.72 | a | 84.43 | a | 85.84 | 84.96 | b | 83.52 | b | 81.14 | b | 79.61 | 81.69 | |||||
1953 | 81.00 | 80.39 | 80.39 | 82.07 | 81.06 | o | 84.71 | f | 86.29 | 86.52 | 86.87 | 86.23 | ----- | z | ----- | z | 83.72 | d | ||||||||
1954 | 80.50 | e | 80.18 | 78.07 | c | 79.70 | 79.27 | a | ----- | z | 81.58 | 84.94 | 86.10 | 84.45 | 83.00 | 77.68 | 81.41 | a | ||||||||
1955 | 77.97 | 78.25 | 78.97 | 79.13 | 80.13 | 81.50 | 83.16 | 82.48 | 83.77 | 84.10 | 82.17 | 79.94 | 80.96 | |||||||||||||
1956 | 80.45 | 77.62 | 78.61 | 79.83 | 80.71 | 81.50 | 84.26 | 85.06 | 85.80 | 84.61 | 83.47 | 80.81 | 81.89 | |||||||||||||
1957 | 80.60 | a | 77.79 | ----- | z | 80.30 | 82.35 | 85.70 | 85.61 | 84.81 | 85.57 | 86.16 | f | 82.50 | 78.03 | a | 82.33 | b | ||||||||
1958 | 79.24 | f | 79.39 | 77.32 | 80.13 | 79.55 | 82.38 | i | 82.65 | h | 82.90 | 85.00 | 82.70 | a | 82.50 | v | 76.96 | g | 81.00 | e | ||||||
1959 | 80.10 | 76.29 | 80.04 | e | 79.80 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.06 | 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 | 79.42 | i | 79.42 | 80.70 | 83.58 | 84.63 | 85.13 | 86.39 | 86.37 | 85.81 | 83.20 | 79.90 | 83.51 | b | ||||||||||
2000 | 77.94 | 80.17 | 82.16 | 80.53 | 83.13 | 87.03 | 87.39 | 86.81 | 86.13 | 86.74 | 83.63 | 83.13 | 83.73 | |||||||||||||
2001 | 82.42 | 83.83 | v | 82.39 | 81.30 | 83.00 | t | 85.33 | c | 87.23 | 87.00 | 87.76 | i | 86.00 | 84.27 | 80.89 | c | 84.09 | c | |||||||
2002 | 80.16 | f | 79.04 | 79.74 | 82.83 | 83.39 | 83.77 | q | ----- | z | 87.35 | k | 89.00 | 84.94 | 82.10 | 82.13 | 82.90 | d | ||||||||
2003 | 78.82 | t | 80.36 | 81.39 | 82.23 | 84.29 | 87.10 | 86.91 | t | 88.64 | q | 88.56 | n | 88.60 | k | 86.83 | l | 81.83 | h | 83.07 | g | |||||
2004 | 84.45 | k | 82.94 | k | 84.00 | h | 82.76 | i | 83.53 | l | 85.55 | j | 88.48 | j | ----- | z | 88.58 | k | 89.00 | k | 87.00 | m | 83.57 | h | ----- | z |
2005 | 80.90 | u | 83.00 | x | 84.00 | o | 83.81 | n | 86.67 | j | 86.67 | i | 87.42 | l | 89.41 | i | 89.70 | j | 87.67 | j | 85.45 | j | 82.71 | j | ----- | z |
2006 | 80.26 | l | 78.05 | i | 80.86 | i | 80.74 | k | 81.55 | i | 86.30 | j | 91.30 | k | 90.71 | x | 91.00 | 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 | 78.63 | 78.62 | 78.45 | 79.28 | 80.99 | 83.44 | 84.14 | 84.76 | 85.18 | 83.97 | 81.41 | 78.93 | 81.28 | |||||||||||||
S.D. | 1.96 | 1.47 | 2.54 | 2.09 | 2.13 | 1.83 | 1.78 | 1.64 | 1.80 | 1.56 | 1.77 | 2.42 | 1.00 | |||||||||||||
SKEW | -0.69 | 0.60 | -1.05 | -0.90 | -1.49 | 0.21 | -0.47 | -0.79 | -0.94 | -0.24 | -0.48 | -0.54 | 0.75 | |||||||||||||
MAX | 82.42 | 82.39 | 82.39 | 82.83 | 84.29 | 87.10 | 87.39 | 87.00 | 89.00 | 86.74 | 84.27 | 83.13 | 83.73 | |||||||||||||
MIN | 72.84 | 76.29 | 71.70 | 73.38 | 73.37 | 79.97 | 79.19 | 80.00 | 79.58 | 80.97 | 77.50 | 72.35 | 79.95 | |||||||||||||
YRS | 27 | 29 | 31 | 32 | 27 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 14 |