YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | 97.00 | 112.00 | 105.00 | f | 103.00 | 101.00 | 102.00 | 90.00 | a | 82.00 | a | ----- | z | |||||
1918 | 82.00 | d | 79.00 | a | 85.00 | b | 90.00 | a | 95.00 | 109.00 | 106.00 | 107.00 | 101.00 | 99.00 | 89.00 | 79.00 | 109.00 | h | ||||||||
1919 | 73.00 | 80.00 | 86.00 | 96.00 | 96.00 | a | 111.00 | 103.00 | 106.00 | 103.00 | a | 89.00 | d | 80.00 | 77.00 | 111.00 | f | |||||||||
1920 | 80.00 | 75.00 | 81.00 | 90.00 | 103.00 | 109.00 | 111.00 | l | 106.00 | 106.00 | d | 96.00 | k | 81.00 | a | 78.00 | e | ----- | z | |||||||
1921 | 79.00 | c | 92.00 | 87.00 | 96.00 | 98.00 | 108.00 | 105.00 | a | 104.00 | a | 102.00 | 100.00 | a | 85.00 | 81.00 | a | 108.00 | g | |||||||
1922 | 78.00 | 80.00 | 82.00 | 91.00 | 106.00 | 112.00 | 109.00 | 108.00 | 106.00 | 100.00 | a | 78.00 | a | 76.00 | 112.00 | b | ||||||||||
1923 | 81.00 | 82.00 | 84.00 | 90.00 | a | 103.00 | 109.00 | f | 105.00 | l | 103.00 | a | 102.00 | a | 95.00 | 80.00 | 79.00 | 109.00 | u | |||||||
1924 | 77.00 | d | 85.00 | g | 83.00 | a | 91.00 | f | 101.00 | j | 110.00 | e | 107.00 | i | 110.00 | k | 104.00 | f | 93.00 | s | ----- | z | ----- | z | ----- | z |
1925 | 78.00 | o | 88.00 | k | 97.00 | g | 101.00 | g | 104.00 | j | 105.00 | t | 109.00 | f | 105.00 | i | ----- | z | ----- | z | ----- | z | 76.00 | s | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 86.00 | a | 83.00 | ----- | z | |
1941 | 76.00 | 82.00 | 81.00 | 87.00 | 102.00 | 108.00 | 110.00 | 105.00 | 104.00 | 97.00 | 89.00 | 84.00 | 110.00 | |||||||||||||
1942 | 79.00 | 78.00 | 88.00 | 89.00 | 103.00 | 111.00 | 113.00 | 104.00 | 102.00 | 98.00 | 88.00 | 80.00 | 113.00 | |||||||||||||
1943 | 80.00 | 90.00 | 91.00 | 101.00 | 102.00 | 107.00 | 111.00 | 103.00 | 109.00 | 99.00 | 88.00 | a | 80.00 | c | 111.00 | d | ||||||||||
1944 | 80.00 | 76.00 | a | 85.00 | 88.00 | 98.00 | 110.00 | 110.00 | 113.00 | 104.00 | s | 101.00 | 85.00 | 77.00 | a | 113.00 | u | |||||||||
1945 | 76.00 | 80.00 | 83.00 | a | 97.00 | ----- | z | ----- | z | ----- | z | 105.00 | 110.00 | 95.00 | 91.00 | 79.00 | ----- | z | ||||||||
1946 | 80.00 | 82.00 | 87.00 | c | 97.00 | a | 97.00 | 108.00 | 106.00 | 105.00 | 104.00 | 87.00 | 85.00 | 86.00 | 108.00 | d | ||||||||||
1947 | 80.00 | 82.00 | 86.00 | 94.00 | a | 103.00 | 106.00 | 111.00 | 104.00 | 107.00 | 98.00 | 88.00 | 74.00 | a | 111.00 | b | ||||||||||
1948 | 84.00 | a | 85.00 | a | 80.00 | a | 100.00 | 103.00 | 108.00 | a | 110.00 | a | 107.00 | h | 110.00 | c | 98.00 | 80.00 | 78.00 | a | 110.00 | q | ||||
1949 | 67.00 | c | 81.00 | c | 84.00 | b | 98.00 | 102.00 | 107.00 | 109.00 | 107.00 | 107.00 | 96.00 | 89.00 | 82.00 | 109.00 | h | |||||||||
1950 | 82.00 | 83.00 | 91.00 | 100.00 | 98.00 | 111.00 | 110.00 | 107.00 | a | 112.00 | 103.00 | 88.00 | 85.00 | 112.00 | a | |||||||||||
1951 | 82.00 | 88.00 | 82.00 | 95.00 | ----- | z | 108.00 | i | 108.00 | c | 106.00 | a | 105.00 | 99.00 | 80.00 | a | 81.00 | ----- | z | |||||||
1952 | 75.00 | 76.00 | b | 80.00 | 93.00 | 100.00 | 107.00 | 110.00 | 107.00 | 107.00 | a | 99.00 | 88.00 | 77.00 | a | 110.00 | d | |||||||||
1953 | 84.00 | a | 82.00 | 90.00 | 96.00 | 98.00 | a | 108.00 | e | 110.00 | 107.00 | a | 107.00 | 103.00 | a | 90.00 | 81.00 | 110.00 | i | |||||||
1954 | 78.00 | a | 85.00 | a | 86.00 | 96.00 | 96.00 | 108.00 | 109.00 | 105.00 | 105.00 | 99.00 | a | 89.00 | a | 85.00 | b | 109.00 | f | |||||||
1955 | 75.00 | 82.00 | 85.00 | 89.00 | h | 102.00 | a | 110.00 | b | 107.00 | c | 100.00 | 105.00 | b | 103.00 | 88.00 | 82.00 | b | 110.00 | r | ||||||
1956 | 82.00 | a | 78.00 | b | 91.00 | a | 93.00 | a | 104.00 | 111.00 | 110.00 | c | 106.00 | b | 108.00 | a | 98.00 | a | 87.00 | d | 77.00 | b | 111.00 | r | ||
1957 | 77.00 | f | 91.00 | c | 89.00 | a | 90.00 | 99.00 | 115.00 | 112.00 | 109.00 | 107.00 | c | 101.00 | e | 75.00 | b | 75.00 | 115.00 | t | ||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 83.00 | 79.00 | 84.00 | b | 98.00 | 101.00 | b | 112.00 | 108.00 | b | 105.00 | d | 105.00 | b | 99.00 | b | 83.00 | c | 81.00 | d | 112.00 | u | ||||
1960 | 78.00 | b | 77.00 | j | 89.00 | h | 96.00 | j | 108.00 | f | 115.00 | f | 113.00 | b | 110.00 | k | 104.00 | c | 99.00 | 89.00 | c | 82.00 | ----- | z | ||
1961 | 77.00 | 82.00 | 87.00 | 95.00 | 100.00 | 110.00 | a | 110.00 | 110.00 | 103.00 | 98.00 | 82.00 | 78.00 | 110.00 | a | |||||||||||
1962 | 79.00 | 86.00 | 90.00 | 101.00 | 101.00 | 111.00 | 107.00 | 110.00 | 107.00 | 98.00 | 98.00 | e | 79.00 | b | 111.00 | g | ||||||||||
1963 | 79.00 | a | 88.00 | 85.00 | c | 96.00 | e | 103.00 | c | 106.00 | b | 109.00 | a | 104.00 | c | 109.00 | j | 103.00 | h | 88.00 | m | ----- | z | ----- | z | |
1964 | 79.00 | h | 77.00 | f | 85.00 | g | 97.00 | f | 101.00 | f | 107.00 | a | 110.00 | b | 105.00 | e | 104.00 | e | 100.00 | d | 86.00 | g | 80.00 | i | ----- | z |
1965 | 80.00 | i | 81.00 | g | 85.00 | f | 102.00 | g | 100.00 | j | 105.00 | i | 107.00 | i | 109.00 | j | 102.00 | i | 102.00 | l | 98.00 | h | 82.00 | e | ----- | z |
1966 | 77.00 | i | 73.00 | d | 87.00 | d | 98.00 | c | 100.00 | g | 108.00 | d | 109.00 | b | 105.00 | g | 105.00 | d | 92.00 | d | 90.00 | g | 79.00 | f | ----- | z |
1967 | 83.00 | i | 86.00 | f | 90.00 | g | 90.00 | k | 101.00 | g | 106.00 | 109.00 | h | 106.00 | d | 103.00 | c | 95.00 | e | 90.00 | h | 74.00 | ----- | z | ||
1968 | 75.00 | 85.00 | 87.00 | 94.00 | b | 104.00 | 113.00 | 108.00 | 104.00 | 107.00 | b | 95.00 | 84.00 | d | 80.00 | 113.00 | h | |||||||||
1969 | 82.00 | b | 79.00 | 95.00 | e | 98.00 | d | 101.00 | e | ----- | z | 103.00 | u | 108.00 | l | 106.00 | q | 100.00 | j | 81.00 | m | 82.00 | m | ----- | z | |
1970 | 80.00 | n | 84.00 | i | 85.00 | j | 98.00 | i | 106.00 | k | 112.00 | k | 109.00 | i | 107.00 | j | 108.00 | k | 89.00 | i | 87.00 | l | 80.00 | j | ----- | z |
1971 | 88.00 | k | 86.00 | k | 95.00 | j | 92.00 | i | 98.00 | l | 108.00 | g | 112.00 | h | 102.00 | i | 107.00 | k | 100.00 | n | 89.00 | j | 80.00 | k | ----- | z |
1972 | 77.00 | j | 86.00 | j | 95.00 | j | 95.00 | k | 99.00 | l | 109.00 | h | 110.00 | l | 108.00 | h | 102.00 | j | 102.00 | o | 81.00 | k | 74.00 | s | ----- | z |
1973 | 76.00 | p | 75.00 | j | 75.00 | e | 100.00 | b | 104.00 | e | 110.00 | g | 113.00 | c | 113.00 | e | 106.00 | d | 101.00 | i | 98.00 | b | 80.00 | r | ----- | z |
1974 | 78.00 | g | 88.00 | a | 88.00 | n | 95.00 | j | 107.00 | 111.00 | g | 111.00 | n | 106.00 | i | 105.00 | n | 97.00 | j | 83.00 | k | 76.00 | g | ----- | z | |
1975 | 80.00 | g | 80.00 | f | 85.00 | h | 87.00 | 98.00 | c | 105.00 | n | 106.00 | n | 109.00 | j | 99.00 | v | ----- | 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 | 79.00 | c | ----- | z |
1999 | 83.00 | a | 84.00 | b | 87.00 | b | 97.00 | a | 105.00 | a | 107.00 | d | 109.00 | c | 107.00 | c | 107.00 | e | 101.00 | e | 93.00 | a | 87.00 | c | ----- | z |
2000 | 89.00 | b | 83.00 | e | 83.00 | f | 100.00 | b | 110.00 | e | 107.00 | b | 113.00 | f | 106.00 | i | 111.00 | e | 102.00 | l | 79.00 | k | 78.00 | g | ----- | z |
2001 | 76.00 | j | 80.00 | f | 88.00 | m | 99.00 | h | 105.00 | j | 109.00 | i | 116.00 | g | 109.00 | l | 108.00 | h | 98.00 | d | 90.00 | f | 81.00 | c | ----- | z |
2002 | 82.00 | e | 87.00 | f | 89.00 | g | 97.00 | c | 108.00 | e | 110.00 | d | 110.00 | f | 109.00 | h | 108.00 | b | 97.00 | g | 88.00 | d | 78.00 | f | ----- | z |
2003 | 84.00 | i | 85.00 | d | 88.00 | f | 92.00 | g | 107.00 | c | 109.00 | e | 111.00 | h | 109.00 | g | 107.00 | h | 103.00 | j | 84.00 | i | 81.00 | d | ----- | z |
2004 | 79.00 | h | 85.00 | e | 97.00 | h | 97.00 | j | 99.00 | f | 106.00 | b | 106.00 | i | 105.00 | k | 105.00 | m | 99.00 | i | 86.00 | f | 81.00 | h | ----- | z |
2005 | 82.00 | p | 72.00 | b | 87.00 | e | 93.00 | h | 107.00 | e | 110.00 | h | 112.00 | e | 109.00 | e | 106.00 | f | 99.00 | f | 90.00 | c | 81.00 | c | ----- | z |
2006 | 82.00 | a | 85.00 | 85.00 | d | 94.00 | c | 105.00 | d | 113.00 | d | 113.00 | f | 107.00 | d | 100.00 | g | 101.00 | e | 93.00 | c | 81.00 | f | ----- | z | |
2007 | 83.00 | c | 85.00 | c | 99.00 | c | 94.00 | d | 103.00 | g | 113.00 | f | 115.00 | c | 108.00 | b | 108.00 | d | 98.00 | e | 95.00 | a | 80.00 | c | ----- | z |
2008 | 77.00 | e | 79.00 | k | 90.00 | 98.00 | b | 104.00 | i | 109.00 | q | 109.00 | x | 109.00 | i | 102.00 | v | 99.00 | m | 93.00 | a | 79.00 | ----- | z | ||
2009 | 83.00 | b | 92.00 | b | 90.00 | 99.00 | 104.00 | d | 105.00 | 110.00 | a | 110.00 | 103.00 | a | 100.00 | 96.00 | a | 67.00 | x | ----- | z | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 79.51 | 82.56 | 86.18 | 95.08 | 101.84 | 109.08 | 109.45 | 106.33 | 105.70 | 98.14 | 87.34 | 80.05 | 110.78 | |||||||||||||
S.D. | 3.86 | 4.87 | 4.40 | 4.01 | 3.68 | 2.37 | 2.46 | 2.75 | 2.76 | 3.50 | 5.40 | 3.05 | 1.48 | |||||||||||||
SKEW | -0.66 | -0.03 | 0.31 | -0.48 | 0.06 | 0.41 | -0.28 | 0.48 | 0.25 | -1.34 | -0.11 | 0.13 | -0.33 | |||||||||||||
MAX | 89.00 | 92.00 | 99.00 | 101.00 | 110.00 | 115.00 | 115.00 | 113.00 | 112.00 | 103.00 | 98.00 | 87.00 | 113.00 | |||||||||||||
MIN | 67.00 | 72.00 | 75.00 | 87.00 | 95.00 | 105.00 | 103.00 | 100.00 | 101.00 | 87.00 | 75.00 | 74.00 | 108.00 | |||||||||||||
YRS | 37 | 39 | 38 | 38 | 38 | 37 | 33 | 36 | 37 | 36 | 38 | 39 | 9 |