YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1934 | 69.38 | w | 75.92 | b | 89.06 | 93.43 | b | 100.27 | a | 99.22 | c | 109.84 | 105.57 | c | 101.03 | 92.26 | 77.21 | b | 66.16 | 91.82 | a | |||||
1935 | 64.50 | c | 71.04 | d | 72.87 | 84.47 | 89.52 | 106.97 | a | 107.68 | 104.29 | 101.73 | 87.32 | 70.73 | 65.84 | 85.58 | ||||||||||
1936 | 66.00 | 68.79 | 80.00 | 90.07 | 98.13 | 105.87 | 108.71 | 107.16 | 101.23 | 89.10 | 76.93 | 65.81 | 88.15 | |||||||||||||
1937 | 53.03 | b | 68.39 | 75.19 | 85.63 | 97.45 | 104.47 | 110.23 | 110.35 | 105.37 | 93.90 | 80.10 | 69.58 | 87.81 | ||||||||||||
1938 | 69.77 | 69.15 | a | 73.00 | a | 87.14 | a | 94.52 | 104.13 | 108.94 | 107.32 | 105.23 | 88.48 | 71.40 | 67.03 | 87.18 | ||||||||||
1939 | 63.71 | 61.07 | 78.32 | 89.83 | 97.06 | 104.30 | 109.87 | 108.74 | 95.75 | b | 86.35 | 77.47 | 70.42 | 86.91 | ||||||||||||
1940 | 67.19 | 68.45 | 81.32 | 87.72 | a | 101.00 | a | 108.10 | 110.19 | 109.29 | 99.07 | c | 90.35 | 72.00 | 64.87 | 88.30 | ||||||||||
1941 | 63.26 | 70.68 | 74.10 | 77.73 | 95.06 | 100.43 | 108.23 | 103.32 | 96.50 | 82.34 | b | 75.30 | 66.06 | 84.42 | ||||||||||||
1942 | 65.67 | a | 66.61 | 74.10 | 82.10 | 92.74 | 103.10 | 111.10 | 105.55 | 102.30 | 89.58 | 77.13 | 69.39 | 86.61 | ||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 107.31 | b | 107.65 | 102.80 | 89.29 | 71.93 | 62.58 | 90.26 | f | |||||
1949 | 51.16 | 63.18 | 74.77 | 87.43 | 92.52 | 102.07 | 107.23 | 105.77 | 104.20 | 86.00 | 81.53 | 63.55 | 84.95 | |||||||||||||
1950 | 61.87 | 73.43 | 77.90 | 89.37 | 92.16 | 101.67 | 104.94 | 107.97 | 98.90 | 95.52 | 79.93 | 73.26 | 88.08 | |||||||||||||
1951 | 64.77 | 69.11 | 75.13 | 83.13 | 92.42 | 100.80 | 107.58 | 103.52 | 103.17 | 87.65 | 71.40 | 61.10 | 84.98 | |||||||||||||
1952 | 60.23 | 68.69 | 67.65 | 84.17 | 96.42 | 99.53 | 107.00 | 107.94 | 103.23 | 98.13 | 70.13 | 64.26 | 85.61 | |||||||||||||
1953 | 69.62 | b | 69.89 | 77.45 | 82.97 | 84.48 | 101.13 | 107.74 | 105.90 | 104.43 | 89.19 | 77.20 | 64.71 | 86.23 | ||||||||||||
1954 | 64.65 | 76.96 | 72.29 | 90.37 | 95.03 | 99.83 | 107.48 | 103.84 | 101.73 | 91.52 | 79.80 | 64.81 | 87.36 | |||||||||||||
1955 | 58.39 | 63.68 | 75.45 | 80.97 | 90.65 | 100.83 | 104.00 | 103.68 | 102.40 | 93.71 | 74.53 | 69.42 | 84.81 | |||||||||||||
1956 | 69.65 | 64.76 | 78.48 | 83.00 | 93.65 | 105.17 | 105.87 | 105.13 | 103.33 | 87.90 | 72.73 | 67.29 | 86.41 | |||||||||||||
1957 | 62.10 | 74.29 | 77.39 | 82.03 | 88.55 | 105.37 | 107.94 | 103.48 | 101.77 | 83.26 | 67.73 | 66.55 | 85.04 | |||||||||||||
1958 | 66.65 | 70.71 | 69.35 | 82.50 | 98.79 | b | 103.50 | b | 108.68 | 107.26 | 101.80 | 92.81 | 74.03 | 72.26 | 87.36 | |||||||||||
1959 | 67.52 | 66.54 | 78.97 | 89.69 | d | 91.68 | 106.80 | 109.68 | 103.94 | 98.11 | c | 90.42 | 74.13 | 63.90 | 86.78 | |||||||||||
1960 | 58.84 | 64.07 | b | 80.13 | 86.50 | 93.19 | j | 107.43 | 110.03 | 106.58 | 101.73 | 87.39 | 73.77 | 64.61 | 85.55 | a | ||||||||||
1961 | 66.87 | 71.68 | 75.52 | 86.00 | 91.90 | 105.70 | 107.97 | 105.00 | 97.20 | 88.26 | 70.57 | 62.61 | 85.77 | |||||||||||||
1962 | 63.77 | 68.68 | 70.65 | 91.47 | 89.48 | 101.77 | 107.77 | 109.23 | 102.07 | 90.37 | a | 80.53 | 67.32 | 86.93 | ||||||||||||
1963 | 60.81 | 75.54 | 75.29 | 79.27 | 95.55 | 97.47 | 107.94 | 104.00 | 102.23 | 91.19 | 73.50 | 65.13 | 85.66 | |||||||||||||
1964 | 62.39 | 66.48 | 71.77 | 81.00 | 89.74 | 100.07 | 107.71 | 104.61 | 99.77 | 95.52 | 69.80 | 66.19 | 84.59 | |||||||||||||
1965 | 65.90 | 70.61 | 72.71 | 80.20 | 90.65 | 96.33 | 106.84 | 106.90 | 96.07 | 94.06 | 75.93 | 61.71 | 84.83 | |||||||||||||
1966 | 61.23 | 64.32 | 77.35 | 88.63 | 97.61 | 102.97 | 107.13 | 106.87 | 101.10 | 88.23 | 76.70 | 65.90 | 86.50 | |||||||||||||
1967 | 65.32 | 73.25 | 78.35 | 75.70 | 92.32 | 98.33 | 108.16 | 108.52 | 99.13 | 92.23 | 80.77 | 60.03 | 86.01 | |||||||||||||
1968 | 65.42 | 74.48 | 77.94 | 82.90 | 93.71 | 103.57 | 105.84 | 102.29 | 101.43 | 89.55 | 75.53 | 61.29 | 86.16 | |||||||||||||
1969 | 66.68 | 65.93 | 73.52 | 85.43 | 96.45 | 99.43 | 106.94 | 110.55 | 103.17 | 84.13 | 74.33 | 68.13 | 86.22 | |||||||||||||
1970 | 64.35 | 73.00 | 73.65 | 78.73 | 94.97 | 103.80 | 109.00 | 107.84 | 99.33 | 85.65 | 76.70 | 62.94 | 85.83 | |||||||||||||
1971 | 65.61 | 71.07 | 78.16 | 81.73 | 87.84 | 101.03 | 109.45 | 103.42 | 100.47 | 82.61 | 72.40 | 61.42 | 84.60 | |||||||||||||
1972 | 64.35 | 74.17 | 87.32 | 86.10 | 93.71 | 102.40 | 109.81 | 104.87 | 99.17 | 81.26 | 68.80 | 61.16 | 86.09 | |||||||||||||
1973 | 61.10 | 66.61 | 67.94 | 82.20 | 96.19 | 105.47 | 109.45 | 106.61 | 99.97 | 90.42 | 73.57 | 67.94 | 85.62 | |||||||||||||
1974 | 61.55 | 69.07 | 77.48 | 84.00 | 94.00 | 107.87 | 106.23 | 106.71 | 102.90 | 89.68 | 74.93 | 62.32 | 86.39 | |||||||||||||
1975 | 64.55 | 67.54 | 71.94 | 75.37 | 90.90 | 101.67 | 106.77 | 107.29 | 102.00 | 87.65 | 74.27 | 67.71 | 84.80 | |||||||||||||
1976 | 67.55 | 70.79 | 73.39 | 80.03 | 95.26 | 102.03 | 106.16 | 104.71 | 95.87 | 86.26 | 76.63 | 66.29 | 85.41 | |||||||||||||
1977 | 63.06 | 74.89 | 71.48 | 86.63 | 85.32 | 104.97 | 107.87 | 105.29 | 99.77 | 91.90 | 78.20 | 70.32 | 86.64 | |||||||||||||
1978 | 62.48 | 67.14 | 77.32 | 80.70 | 92.06 | 106.30 | 109.19 | 105.87 | 98.30 | 92.42 | 70.33 | 58.68 | 85.07 | |||||||||||||
1979 | 55.39 | 67.18 | 72.65 | 84.83 | 92.19 | 104.50 | 107.40 | a | 103.13 | 106.07 | 91.42 | 71.53 | 68.13 | 85.37 | ||||||||||||
1980 | 65.52 | 70.93 | 71.84 | 83.70 | 88.10 | 103.43 | 110.52 | 105.90 | 102.47 | 90.90 | 78.10 | 73.13 | a | 87.04 | ||||||||||||
1981 | 70.87 | 73.04 | 75.23 | 89.20 | 92.19 | 107.23 | 108.10 | 109.06 | 101.07 | 83.71 | 78.67 | 68.77 | 88.09 | |||||||||||||
1982 | 64.00 | 70.54 | 74.00 | 83.67 | 92.74 | 99.73 | 105.29 | 104.06 | 97.30 | 84.52 | 70.33 | 61.32 | 83.96 | |||||||||||||
1983 | 66.48 | 69.04 | 73.87 | 77.87 | 93.00 | 101.50 | 107.97 | 102.55 | 99.93 | 88.00 | 74.30 | 66.00 | 85.04 | |||||||||||||
1984 | 66.74 | 70.34 | 78.74 | 82.77 | 100.77 | 101.63 | 105.03 | 103.97 | 100.60 | 81.39 | 71.77 | 59.42 | 85.26 | |||||||||||||
1985 | 61.23 | 66.93 | 74.48 | 88.80 | 95.27 | a | 106.17 | 108.00 | 107.03 | 92.50 | 86.23 | 69.86 | a | 66.26 | 85.23 | |||||||||||
1986 | 71.61 | 72.11 | 81.70 | a | 84.43 | 94.81 | 105.27 | 103.97 | 105.94 | 93.31 | a | 84.84 | 74.60 | 63.71 | 86.36 | |||||||||||
1987 | 62.10 | a | 70.39 | 74.61 | 89.87 | 92.87 | 105.47 | 104.48 | b | 105.81 | 101.00 | 91.37 | a | 72.29 | b | 59.93 | a | 85.85 | ||||||||
1988 | 62.35 | 72.14 | 77.87 | a | 83.96 | b | 93.03 | 103.97 | 108.32 | 104.90 | 99.40 | 95.16 | 74.90 | a | 65.06 | 86.76 | ||||||||||
1989 | 63.07 | a | 71.41 | a | 82.48 | 93.63 | 95.06 | 103.77 | 109.65 | 104.19 | 101.20 | 88.26 | 77.50 | 67.52 | 88.14 | |||||||||||
1990 | 63.13 | 69.23 | b | 79.23 | 86.27 | 91.52 | 105.63 | 106.29 | 104.23 | 100.17 | 90.03 | 75.20 | 60.50 | a | 85.95 | |||||||||||
1991 | 62.87 | 76.64 | 69.23 | 82.30 | 89.29 | 98.03 | 106.52 | 105.71 | 100.03 | 91.38 | b | 74.17 | a | 63.71 | 84.99 | |||||||||||
1992 | 63.90 | 71.55 | 73.84 | 88.70 | 95.65 | 101.90 | 105.65 | 105.03 | 102.53 | 89.77 | 70.47 | 59.42 | 85.70 | |||||||||||||
1993 | 61.52 | 65.68 | 78.63 | a | 86.77 | 94.71 | 101.50 | 104.90 | 105.26 | 101.53 | 88.81 | 71.00 | 66.03 | 85.53 | ||||||||||||
1994 | 68.42 | 67.04 | 79.06 | 85.87 | 91.60 | a | 107.73 | 108.16 | 108.29 | 102.57 | 86.77 | 67.07 | 63.61 | 86.35 | ||||||||||||
1995 | 63.10 | 75.07 | 75.32 | 82.20 | 88.23 | 100.43 | 108.77 | 109.13 | 103.07 | 91.13 | 81.40 | 68.97 | 87.23 | |||||||||||||
1996 | 69.39 | 75.00 | 79.00 | 88.17 | 96.39 | 106.17 | 109.55 | 108.13 | 98.07 | 87.81 | 75.77 | 66.90 | 88.36 | |||||||||||||
1997 | 65.38 | b | 69.64 | 84.42 | 84.00 | 101.06 | 100.63 | 106.84 | 107.42 | 100.73 | 87.13 | 75.37 | 62.42 | 87.09 | ||||||||||||
1998 | 66.74 | 64.21 | 74.63 | a | 80.53 | 87.94 | 98.87 | 109.77 | 109.55 | 99.77 | ----- | z | 75.10 | 65.16 | 84.75 | a | ||||||||||
1999 | ----- | z | ----- | z | 78.13 | 78.90 | a | 92.94 | 101.93 | 103.94 | 105.48 | 97.33 | c | 93.48 | 80.13 | 67.77 | 90.00 | b | ||||||||
2000 | 70.52 | 72.69 | 76.45 | 91.33 | 98.84 | 106.20 | ----- | z | 106.87 | a | 102.86 | a | 86.23 | a | 69.10 | 69.79 | b | 86.44 | a | |||||||
2001 | 63.45 | b | 67.21 | 78.58 | 83.23 | 101.65 | 105.60 | 106.65 | 108.19 | 105.83 | 91.90 | 79.27 | 64.03 | 87.97 | ||||||||||||
2002 | 66.16 | 73.50 | 76.90 | 87.67 | 95.97 | b | ----- | z | 110.00 | 107.32 | 102.10 | a | 86.68 | ----- | z | 65.00 | 87.13 | b | ||||||||
2003 | 73.26 | 68.29 | 77.16 | 82.39 | b | 96.26 | 103.87 | 109.71 | 106.39 | 103.60 | 95.65 | 70.87 | 65.87 | 87.78 | ||||||||||||
2004 | 66.35 | 66.28 | 86.45 | 86.83 | a | 96.68 | 105.10 | 108.65 | 106.90 | 99.63 | 85.00 | 69.55 | a | 64.83 | a | 86.85 | ||||||||||
2005 | 66.40 | a | 66.26 | a | 75.84 | 83.97 | 95.81 | 101.69 | a | 110.81 | 106.06 | 100.70 | 88.10 | 76.38 | a | 66.57 | a | 86.55 | ||||||||
2006 | 67.90 | 73.36 | 72.71 | 84.20 | 99.77 | a | 107.53 | 110.16 | 107.19 | 99.03 | 85.90 | 78.20 | 65.55 | 87.63 | ||||||||||||
2007 | 64.25 | c | 72.54 | 82.19 | 87.20 | ----- | z | 105.53 | 108.61 | ----- | z | ----- | z | 88.71 | 80.30 | 61.68 | 83.45 | c | ||||||||
2008 | 62.26 | 68.93 | a | 80.13 | ----- | z | ----- | z | 106.97 | 101.83 | b | 100.03 | 96.69 | a | 87.71 | 80.65 | d | 62.71 | 84.79 | b | ||||||
2009 | 68.10 | 69.85 | a | 79.19 | 84.10 | 100.74 | 98.90 | 110.32 | 108.19 | 104.10 | 85.45 | 79.00 | 62.06 | 87.50 | ||||||||||||
2010 | 66.29 | 69.19 | a | 74.58 | 82.03 | 89.42 | 103.17 | 109.61 | 107.13 | 104.87 | 88.39 | 74.70 | 67.35 | 86.39 | ||||||||||||
2011 | 65.32 | 66.43 | 77.87 | 85.33 | 89.87 | 103.20 | 107.61 | 110.90 | 103.50 | 91.06 | 73.55 | a | 60.81 | e | 86.29 | |||||||||||
2012 | 69.45 | 71.97 | 77.74 | 87.47 | 97.81 | 106.47 | 105.81 | 107.61 | 103.30 | 90.71 | 79.36 | e | 66.93 | c | 88.72 | |||||||||||
2013 | 62.07 | c | 67.89 | 81.42 | e | 87.83 | 95.19 | 107.65 | j | 107.06 | 106.17 | b | 98.83 | 86.63 | a | 75.60 | 65.13 | 84.90 | a | |||||||
2014 | 72.65 | 77.21 | 80.79 | b | 87.21 | a | 94.87 | 105.57 | g | 108.68 | 103.48 | 102.00 | 91.97 | 78.50 | j | 66.65 | 88.55 | b | ||||||||
2015 | 68.00 | 78.25 | 83.32 | 85.55 | a | 89.61 | 106.63 | 104.81 | j | 109.74 | 103.10 | 91.67 | a | 74.75 | f | 63.83 | a | 87.97 | b | |||||||
2016 | 63.00 | 76.45 | 82.97 | b | 84.29 | p | 91.23 | 105.21 | k | 108.61 | 105.77 | a | 98.17 | f | 91.57 | a | 78.81 | c | 69.82 | n | 87.30 | d | ||||
2017 | 61.90 | 73.42 | d | 82.45 | b | 84.00 | m | 91.61 | h | 107.30 | c | 108.03 | 107.36 | f | 99.68 | e | 91.06 | 79.73 | 69.85 | k | 87.95 | d | ||||
2018 | 70.43 | a | 71.25 | 74.81 | d | 89.59 | c | 93.56 | f | 104.53 | 108.62 | e | 110.56 | v | 103.42 | d | 85.79 | b | 76.11 | c | 64.88 | o | 87.17 | c | ||
2019 | 62.84 | 62.04 | b | 75.89 | c | 87.58 | f | 87.10 | a | 102.31 | a | 107.72 | b | 108.81 | d | 99.23 | 87.00 | a | 82.90 | j | 63.00 | n | 88.11 | c | ||
2020 | 66.97 | b | 70.83 | 71.90 | 85.43 | 98.97 | 104.87 | 110.60 | a | 113.03 | 106.03 | 95.52 | 78.57 | 66.90 | 89.13 | |||||||||||
2021 | 66.19 | 72.45 | q | 75.70 | d | 90.20 | 96.52 | 109.93 | 109.29 | 107.77 | 103.20 | 86.55 | 82.47 | 68.00 | 90.53 | a | ||||||||||
2022 | 68.19 | 70.07 | 81.00 | a | 88.00 | 96.81 | 106.83 | 108.97 | 105.55 | 104.07 | 90.35 | 71.07 | 66.29 | 88.10 | ||||||||||||
2023 | 63.55 | 67.07 | 72.48 | 87.63 | 96.03 | 99.70 | 113.84 | 108.58 | 101.43 | 90.97 | 77.60 | 69.45 | 87.36 | |||||||||||||
2024 | 65.03 | 70.23 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.63 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 64.77 | 70.00 | 76.69 | 85.00 | 93.90 | 103.42 | 107.96 | 106.36 | 101.01 | 89.13 | 75.07 | 65.35 | 86.39 | |||||||||||||
S.D. | 3.82 | 3.71 | 4.18 | 3.88 | 3.84 | 2.95 | 1.95 | 2.23 | 2.74 | 3.48 | 3.72 | 3.19 | 1.19 | |||||||||||||
SKEW | -0.68 | -0.00 | 0.42 | -0.16 | -0.09 | -0.20 | -0.35 | 0.12 | -0.63 | 0.03 | -0.06 | 0.11 | 0.20 | |||||||||||||
MAX | 73.26 | 78.25 | 89.06 | 93.63 | 101.65 | 109.93 | 113.84 | 113.03 | 106.07 | 98.13 | 82.47 | 73.26 | 89.13 | |||||||||||||
MIN | 51.16 | 61.07 | 67.65 | 75.37 | 84.48 | 96.33 | 101.83 | 100.03 | 92.50 | 81.26 | 67.07 | 58.68 | 83.96 | |||||||||||||
YRS | 83 | 83 | 84 | 80 | 79 | 80 | 83 | 82 | 83 | 84 | 81 | 81 | 68 |