YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | 99.00 | 104.00 | 103.00 | 101.00 | 100.00 | 98.00 | 80.00 | a | 75.00 | ----- | z | |||||||
1930 | 75.00 | 87.00 | 83.00 | a | 95.00 | 98.00 | a | 107.00 | a | 101.00 | 104.00 | 109.00 | 92.00 | 80.00 | 68.00 | 109.00 | c | |||||||||
1931 | 70.00 | 72.00 | 88.00 | a | ----- | z | ----- | z | 106.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 102.00 | 105.00 | 97.00 | 96.00 | 83.00 | 78.00 | ----- | z | ||||||
1963 | 79.00 | a | 82.00 | 96.00 | 95.00 | a | 102.00 | 102.00 | 102.00 | 100.00 | 98.00 | 89.00 | 85.00 | 69.00 | 102.00 | b | ||||||||||
1964 | 72.00 | 69.00 | 85.00 | 92.00 | 98.00 | 103.00 | 103.00 | 104.00 | 98.00 | 93.00 | 83.00 | 77.00 | 104.00 | |||||||||||||
1965 | 75.00 | g | 76.00 | g | 82.00 | 98.00 | 96.00 | k | 102.00 | 101.00 | 98.00 | 100.00 | 94.00 | i | 85.00 | 74.00 | ----- | z | ||||||||
1966 | 72.00 | 74.00 | 86.00 | 91.00 | 101.00 | 102.00 | 102.00 | 96.00 | 96.00 | 89.00 | 82.00 | 82.00 | 102.00 | |||||||||||||
1967 | 80.00 | 80.00 | 92.00 | 95.00 | k | 103.00 | e | 100.00 | 100.00 | 100.00 | 96.00 | 92.00 | 80.00 | 72.00 | 103.00 | p | ||||||||||
1968 | 72.00 | a | 74.00 | b | 86.00 | g | ----- | z | ----- | z | 103.00 | 99.00 | 99.00 | i | 94.00 | 93.00 | 89.00 | 70.00 | a | ----- | z | |||||
1969 | 80.00 | e | 70.00 | d | 79.00 | k | 89.00 | 101.00 | 112.00 | 108.00 | 110.00 | 97.00 | 96.00 | 85.00 | b | 75.00 | b | 112.00 | x | |||||||
1970 | 83.00 | 83.00 | 83.00 | b | 91.00 | 99.00 | 105.00 | 107.00 | 106.00 | 99.00 | 88.00 | 85.00 | 83.00 | d | 107.00 | f | ||||||||||
1971 | 81.00 | 86.00 | a | 95.00 | 95.00 | 100.00 | 105.00 | 108.00 | c | 101.00 | f | 101.00 | 88.00 | b | 84.00 | 81.00 | 108.00 | l | ||||||||
1972 | 83.00 | a | 90.00 | b | 91.00 | 102.00 | d | 97.00 | 109.00 | a | 104.00 | b | ----- | z | 102.00 | 95.00 | 78.00 | 77.00 | e | ----- | z | |||||
1973 | 76.00 | a | 81.00 | a | 82.00 | 90.00 | 105.00 | 106.00 | 102.00 | 105.00 | 99.00 | 96.00 | 87.00 | a | 86.00 | d | 106.00 | g | ||||||||
1974 | 88.00 | 86.00 | 93.00 | 95.00 | 104.00 | 102.00 | 104.00 | b | 102.00 | a | 97.00 | 85.00 | 82.00 | 78.00 | 104.00 | c | ||||||||||
1975 | 82.00 | 79.00 | 87.00 | 97.00 | 98.00 | 107.00 | a | 101.00 | 103.00 | 96.00 | a | 91.00 | 85.00 | 80.00 | 107.00 | b | ||||||||||
1976 | 74.00 | e | 88.00 | 89.00 | a | 92.00 | 100.00 | 101.00 | 97.00 | 103.00 | a | 95.00 | 88.00 | a | 79.00 | 71.00 | a | 103.00 | i | |||||||
1977 | 73.00 | 89.00 | 88.00 | 89.00 | 102.00 | 105.00 | 104.00 | 107.00 | 103.00 | 103.00 | a | 84.00 | 83.00 | 107.00 | a | |||||||||||
1978 | 75.00 | 78.00 | 92.00 | a | 97.00 | 106.00 | 103.00 | 108.00 | a | 105.00 | e | 100.00 | 88.00 | a | 80.00 | 80.00 | 108.00 | h | ||||||||
1979 | 75.00 | 86.00 | 87.00 | 93.00 | 99.00 | b | 103.00 | 102.00 | 100.00 | 100.00 | 98.00 | 82.00 | 78.00 | 103.00 | b | |||||||||||
1980 | 78.00 | a | 84.00 | 87.00 | 92.00 | 99.00 | 108.00 | a | 107.00 | 104.00 | 97.00 | 88.00 | 87.00 | 80.00 | 108.00 | b | ||||||||||
1981 | 76.00 | 81.00 | 85.00 | 92.00 | 103.00 | j | 104.00 | 103.00 | 102.00 | 102.00 | 93.00 | 89.00 | 82.00 | h | 104.00 | r | ||||||||||
1982 | 80.00 | b | 86.00 | a | 90.00 | 94.00 | 100.00 | a | 104.00 | 102.00 | 103.00 | b | 99.00 | 95.00 | 86.00 | a | 76.00 | 104.00 | g | |||||||
1983 | 71.00 | 80.00 | a | 94.00 | a | 94.00 | a | 99.00 | a | 104.00 | 107.00 | 103.00 | 103.00 | 95.00 | a | 83.00 | b | 82.00 | b | 107.00 | i | |||||
1984 | 75.00 | 83.00 | a | 91.00 | d | 94.00 | 102.00 | 104.00 | 99.00 | 103.00 | a | 102.00 | 85.00 | 85.00 | 75.00 | 104.00 | f | |||||||||
1985 | 75.00 | a | 77.00 | 89.00 | 95.00 | 105.00 | 100.00 | 100.00 | 103.00 | a | 100.00 | a | 87.00 | 83.00 | 77.00 | 105.00 | c | |||||||||
1986 | 80.00 | 91.00 | 90.00 | 97.00 | 100.00 | 96.00 | a | 101.00 | 103.00 | 92.00 | 89.00 | 79.00 | 73.00 | 103.00 | a | |||||||||||
1987 | 80.00 | 78.00 | 79.00 | 97.00 | 90.00 | a | 100.00 | 101.00 | a | 101.00 | 96.00 | 91.00 | 87.00 | 83.00 | 101.00 | b | ||||||||||
1988 | 73.00 | 83.00 | 93.00 | 93.00 | 102.00 | 105.00 | 99.00 | 98.00 | 97.00 | a | 91.00 | 91.00 | 74.00 | 105.00 | a | |||||||||||
1989 | 79.00 | 87.00 | 94.00 | a | 97.00 | 108.00 | a | 102.00 | a | 111.00 | 102.00 | 100.00 | 96.00 | a | 84.00 | 81.00 | a | 111.00 | e | |||||||
1990 | 78.00 | c | 87.00 | a | 90.00 | 96.00 | 104.00 | a | 105.00 | 97.00 | 98.00 | 99.00 | a | 88.00 | b | 83.00 | a | 78.00 | 105.00 | i | ||||||
1991 | 71.00 | 81.00 | a | 90.00 | b | 91.00 | a | 101.00 | 102.00 | 100.00 | 98.00 | a | 94.00 | d | 93.00 | 78.00 | g | 76.00 | e | 102.00 | u | |||||
1992 | 68.00 | a | 79.00 | a | 84.00 | a | 99.00 | c | 96.00 | y | 102.00 | 104.00 | 100.00 | a | 98.00 | 93.00 | 82.00 | g | 72.00 | n | ----- | z | ||||
1993 | 81.00 | e | 78.00 | f | 88.00 | d | 95.00 | b | 97.00 | d | 102.00 | 102.00 | 101.00 | 95.00 | b | 93.00 | b | 82.00 | d | 75.00 | c | ----- | z | |||
1994 | 83.00 | d | 88.00 | c | 91.00 | d | 93.00 | f | 102.00 | d | 115.00 | 108.00 | c | 103.00 | a | 97.00 | b | 95.00 | d | 86.00 | d | 79.00 | b | ----- | z | |
1995 | 80.00 | e | 82.00 | j | 95.00 | e | 96.00 | c | 101.00 | b | 100.00 | b | 108.00 | 99.00 | 101.00 | 94.00 | f | 85.00 | a | 82.00 | ----- | z | ||||
1996 | 82.00 | a | 89.00 | c | 87.00 | g | 100.00 | e | 105.00 | b | 107.00 | a | 101.00 | b | 103.00 | c | 96.00 | a | 90.00 | 87.00 | e | 79.00 | a | ----- | z | |
1997 | 82.00 | h | 79.00 | 91.00 | 93.00 | a | 96.00 | c | 100.00 | a | 98.00 | 102.00 | a | 100.00 | 93.00 | a | 83.00 | d | 76.00 | d | 102.00 | w | ||||
1998 | 78.00 | 82.00 | a | 92.00 | g | 94.00 | 108.00 | a | 112.00 | 106.00 | 101.00 | 101.00 | 97.00 | c | 84.00 | c | 78.00 | e | 112.00 | t | ||||||
1999 | 83.00 | c | 84.00 | e | 89.00 | a | 99.00 | a | 101.00 | a | 105.00 | 103.00 | a | 103.00 | 97.00 | b | 96.00 | 86.00 | c | 80.00 | e | 105.00 | v | |||
2000 | 85.00 | a | 86.00 | e | ----- | z | 97.00 | a | 110.00 | c | 97.00 | b | 105.00 | a | 106.00 | a | 104.00 | b | 100.00 | f | 75.00 | e | 75.00 | a | ----- | z |
2001 | 76.00 | b | 82.00 | a | 88.00 | c | 97.00 | d | 105.00 | d | 105.00 | a | 103.00 | a | 101.00 | b | 101.00 | e | 91.00 | a | 87.00 | c | 70.00 | b | ----- | z |
2002 | 79.00 | c | 85.00 | c | 91.00 | e | 98.00 | a | 100.00 | c | 99.00 | e | 101.00 | c | 106.00 | g | 96.00 | e | 90.00 | b | 81.00 | c | 82.00 | b | ----- | z |
2003 | 78.00 | a | 85.00 | 90.00 | c | 94.00 | e | 102.00 | a | 101.00 | f | 99.00 | d | 105.00 | c | 96.00 | d | 91.00 | d | 81.00 | f | 79.00 | g | ----- | z | |
2004 | 72.00 | n | 79.00 | f | 87.00 | e | 91.00 | e | 100.00 | b | 103.00 | d | 99.00 | b | ----- | z | 98.00 | b | ----- | z | ----- | z | 73.00 | c | ----- | z |
2005 | 75.00 | c | 78.00 | 84.00 | 93.00 | 103.00 | h | 100.00 | 104.00 | 96.00 | 102.00 | 95.00 | 87.00 | ----- | z | ----- | z | |||||||||
2006 | 83.00 | b | 84.00 | 93.00 | a | 97.00 | 102.00 | d | 101.00 | q | 100.00 | t | 101.00 | d | 95.00 | e | 92.00 | i | ----- | z | ----- | z | ----- | z | ||
2007 | ----- | z | ----- | z | ----- | z | ----- | z | 95.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 104.00 | p | 105.00 | a | 95.00 | 91.00 | 86.00 | 84.00 | ----- | z | ||||
2009 | 83.00 | 93.00 | a | 91.00 | 99.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.00 | n | 91.00 | a | 91.00 | 82.00 | a | ----- | z | |
2011 | 77.00 | 86.00 | 93.00 | 98.00 | c | 108.00 | 109.00 | 103.00 | 106.00 | b | 101.00 | 97.00 | 84.00 | 70.00 | 109.00 | e | ||||||||||
2012 | 81.00 | 86.00 | c | ----- | z | 104.00 | s | 103.00 | a | 107.00 | 98.00 | l | 104.00 | m | 101.00 | 90.00 | o | ----- | z | ----- | z | ----- | z | |||
2013 | 80.00 | 80.00 | 93.00 | 97.00 | 104.00 | 107.00 | d | 101.00 | 105.00 | a | 99.00 | 97.00 | 84.00 | 80.00 | 107.00 | e | ||||||||||
2014 | 80.00 | 88.00 | 88.00 | 96.00 | b | 100.00 | 104.00 | 105.00 | 101.00 | 103.00 | 95.00 | 82.00 | 74.00 | a | 105.00 | c | ||||||||||
2015 | 78.00 | 83.00 | 92.00 | 91.00 | 95.00 | 98.00 | 104.00 | 104.00 | 98.00 | a | 93.00 | a | 82.00 | 82.00 | 104.00 | b | ||||||||||
2016 | 79.00 | 86.00 | 87.00 | 94.00 | 100.00 | 102.00 | 105.00 | 102.00 | 98.00 | 97.00 | 90.00 | 83.00 | 105.00 | |||||||||||||
2017 | 85.00 | 92.00 | 94.00 | c | 96.00 | l | 102.00 | a | 112.00 | g | ----- | z | 100.00 | p | 103.00 | 92.00 | 90.00 | 79.00 | ----- | z | ||||||
2018 | 78.00 | b | 83.00 | 92.00 | 98.00 | 107.00 | a | 108.00 | b | 106.00 | 102.00 | 99.00 | 93.00 | 83.00 | 78.00 | 108.00 | e | |||||||||
2019 | 74.00 | 82.00 | 90.00 | 99.00 | 95.00 | 106.00 | 105.00 | 111.00 | 98.00 | 95.00 | a | 88.00 | 82.00 | 111.00 | a | |||||||||||
2020 | 77.00 | 79.00 | 95.00 | 99.00 | 105.00 | 110.00 | 110.00 | 107.00 | 103.00 | 99.00 | a | 85.00 | 84.00 | 110.00 | a | |||||||||||
2021 | 70.00 | 85.00 | 89.00 | 95.00 | 97.00 | 106.00 | 101.00 | 100.00 | 102.00 | 97.00 | 87.00 | 87.00 | 106.00 | |||||||||||||
2022 | 78.00 | 81.00 | 93.00 | f | 96.00 | 104.00 | 109.00 | j | 104.00 | 104.00 | 93.00 | 88.00 | 81.00 | 80.00 | 109.00 | p | ||||||||||
2023 | 80.00 | l | 89.00 | c | 89.00 | 92.00 | 98.00 | 112.00 | 110.00 | 109.00 | 106.00 | 95.00 | 91.00 | 80.00 | 112.00 | o | ||||||||||
2024 | 76.00 | 88.00 | 85.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 77.77 | 83.05 | 89.26 | 95.00 | 101.28 | 104.23 | 103.16 | 102.67 | 98.92 | 92.73 | 84.32 | 77.96 | 105.32 | |||||||||||||
S.D. | 4.28 | 5.19 | 3.83 | 2.99 | 3.75 | 3.85 | 3.33 | 3.14 | 3.23 | 3.75 | 3.43 | 4.46 | 2.77 | |||||||||||||
SKEW | -0.12 | -0.62 | -0.47 | -0.06 | -0.11 | 0.44 | 0.38 | 0.25 | 0.41 | 0.07 | -0.08 | -0.33 | 0.48 | |||||||||||||
MAX | 88.00 | 93.00 | 96.00 | 102.00 | 110.00 | 115.00 | 111.00 | 111.00 | 109.00 | 103.00 | 91.00 | 87.00 | 111.00 | |||||||||||||
MIN | 68.00 | 69.00 | 79.00 | 89.00 | 90.00 | 96.00 | 97.00 | 96.00 | 92.00 | 85.00 | 75.00 | 68.00 | 101.00 | |||||||||||||
YRS | 57 | 57 | 54 | 54 | 54 | 56 | 57 | 54 | 61 | 56 | 56 | 56 | 19 |