YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | 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 | ----- | 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 | 80.00 | 100.00 | f | 93.00 | o | 98.00 | k | ----- | z | 98.00 | f | ----- | z | 95.00 | d | 86.00 | d | 75.00 | f | ----- | z | |
1966 | 71.00 | 74.00 | 87.00 | 91.00 | c | 102.00 | b | 100.00 | d | 101.00 | a | 102.00 | a | 95.00 | f | 88.00 | c | 80.00 | d | 82.00 | 102.00 | x | ||||
1967 | 83.00 | b | 82.00 | 94.00 | 94.00 | 102.00 | 98.00 | a | 102.00 | 102.00 | 91.00 | 88.00 | 83.00 | d | 75.00 | b | 102.00 | i | ||||||||
1968 | 73.00 | 75.00 | 81.00 | 85.00 | 101.00 | 99.00 | 99.00 | 100.00 | 99.00 | 97.00 | 86.00 | 74.00 | 101.00 | |||||||||||||
1969 | 82.00 | 77.00 | b | 82.00 | 88.00 | 93.00 | 109.00 | 105.00 | 110.00 | 90.00 | 93.00 | 83.00 | b | 79.00 | 110.00 | d | ||||||||||
1970 | 83.00 | 79.00 | 79.00 | 91.00 | 95.00 | 104.00 | a | 103.00 | 103.00 | 95.00 | 86.00 | b | 83.00 | 79.00 | 104.00 | c | ||||||||||
1971 | 84.00 | 78.00 | 97.00 | 92.00 | h | 100.00 | d | 100.00 | b | 106.00 | a | 95.00 | a | 97.00 | 84.00 | 81.00 | 77.00 | 106.00 | p | |||||||
1972 | 82.00 | 88.00 | 88.00 | b | 100.00 | b | 97.00 | 107.00 | 103.00 | 103.00 | 95.00 | 95.00 | 76.00 | 80.00 | b | 107.00 | f | |||||||||
1973 | 73.00 | 78.00 | b | 80.00 | 86.00 | 102.00 | c | 103.00 | 102.00 | 104.00 | 96.00 | 93.00 | b | 88.00 | a | 80.00 | b | 104.00 | j | |||||||
1974 | 84.00 | a | 79.00 | 93.00 | 93.00 | b | 99.00 | a | 102.00 | 103.00 | 96.00 | 92.00 | 83.00 | c | 77.00 | a | 77.00 | 103.00 | h | |||||||
1975 | 79.00 | 76.00 | 85.00 | 93.00 | c | 95.00 | 104.00 | 96.00 | 99.00 | 94.00 | b | 93.00 | 85.00 | 80.00 | d | 104.00 | i | |||||||||
1976 | 75.00 | 86.00 | a | 88.00 | 89.00 | 99.00 | 100.00 | 94.00 | a | 95.00 | e | 89.00 | 86.00 | b | 76.00 | a | 67.00 | b | 100.00 | l | ||||||
1977 | 68.00 | 84.00 | a | 85.00 | 82.00 | a | 101.00 | 100.00 | 101.00 | 103.00 | e | 106.00 | 102.00 | c | 85.00 | d | 84.00 | b | 106.00 | p | ||||||
1978 | 72.00 | j | 78.00 | a | ----- | z | ----- | z | 103.00 | q | 100.00 | h | 106.00 | 105.00 | f | 100.00 | 92.00 | 80.00 | 82.00 | b | ----- | z | ||||
1979 | 72.00 | c | 85.00 | 85.00 | l | 93.00 | e | 98.00 | 99.00 | 100.00 | 97.00 | g | 101.00 | a | 102.00 | b | 80.00 | h | 75.00 | d | ----- | z | ||||
1980 | ----- | z | 84.00 | 82.00 | e | 92.00 | e | 96.00 | 106.00 | 105.00 | 101.00 | a | 96.00 | 88.00 | 89.00 | 76.00 | d | ----- | z | |||||||
1981 | 73.00 | 80.00 | 80.00 | 93.00 | a | 105.00 | 100.00 | a | 101.00 | 100.00 | 101.00 | 91.00 | 87.00 | a | 78.00 | 105.00 | c | |||||||||
1982 | 80.00 | a | 85.00 | b | 91.00 | 96.00 | 96.00 | 99.00 | ----- | z | 102.00 | 99.00 | 95.00 | 87.00 | 77.00 | ----- | z | |||||||||
1983 | 70.00 | 72.00 | j | 85.00 | 92.00 | a | 98.00 | a | 103.00 | 104.00 | 102.00 | f | 99.00 | a | 95.00 | 81.00 | 77.00 | a | 104.00 | t | ||||||
1984 | 73.00 | 80.00 | ----- | z | 95.00 | d | 102.00 | 105.00 | 100.00 | 104.00 | 100.00 | 84.00 | 82.00 | 73.00 | ----- | z | ||||||||||
1985 | 72.00 | b | 74.00 | 86.00 | g | 95.00 | 104.00 | b | 99.00 | 101.00 | a | 102.00 | 100.00 | 86.00 | 82.00 | a | 75.00 | 104.00 | m | |||||||
1986 | 78.00 | 89.00 | 86.00 | 96.00 | k | 100.00 | 94.00 | 100.00 | b | 105.00 | f | 91.00 | 86.00 | 80.00 | 72.00 | d | 105.00 | w | ||||||||
1987 | 79.00 | 78.00 | 77.00 | c | 95.00 | b | 90.00 | 96.00 | c | 99.00 | 99.00 | d | 92.00 | 90.00 | 85.00 | d | 80.00 | a | 99.00 | q | ||||||
1988 | 73.00 | 83.00 | ----- | z | 91.00 | f | 98.00 | 104.00 | 97.00 | 98.00 | d | 93.00 | 88.00 | a | 87.00 | 76.00 | c | ----- | z | |||||||
1989 | 77.00 | a | 83.00 | a | 95.00 | b | 96.00 | b | 106.00 | b | 98.00 | b | 106.00 | 101.00 | f | 99.00 | 95.00 | 84.00 | b | 79.00 | b | 106.00 | t | |||
1990 | 75.00 | 80.00 | 89.00 | d | 93.00 | b | 104.00 | a | 103.00 | b | 92.00 | m | 99.00 | i | 94.00 | g | 85.00 | o | 80.00 | h | 73.00 | i | ----- | z | ||
1991 | 70.00 | h | 79.00 | 89.00 | g | 91.00 | t | 96.00 | m | 97.00 | d | 97.00 | 97.00 | 92.00 | q | 90.00 | c | 75.00 | 69.00 | a | ----- | z | ||||
1992 | 67.00 | 75.00 | 83.00 | 98.00 | 96.00 | 98.00 | 103.00 | 98.00 | 96.00 | 92.00 | 85.00 | 72.00 | 103.00 | |||||||||||||
1993 | 76.00 | 77.00 | 86.00 | a | 94.00 | 93.00 | 101.00 | 101.00 | 101.00 | 93.00 | 95.00 | 79.00 | b | 71.00 | 101.00 | c | ||||||||||
1994 | 75.00 | 83.00 | 89.00 | 93.00 | 100.00 | 114.00 | 108.00 | 102.00 | 96.00 | a | 93.00 | a | 83.00 | 76.00 | 114.00 | b | ||||||||||
1995 | 77.00 | 78.00 | a | 94.00 | 96.00 | a | 98.00 | a | 98.00 | 108.00 | a | 96.00 | 100.00 | 93.00 | a | 83.00 | 81.00 | a | 108.00 | f | ||||||
1996 | 78.00 | 89.00 | 85.00 | 97.00 | 102.00 | a | 102.00 | 101.00 | 101.00 | 89.00 | 87.00 | 89.00 | 78.00 | 102.00 | a | |||||||||||
1997 | 81.00 | 80.00 | 88.00 | 88.00 | 93.00 | 96.00 | a | 98.00 | 101.00 | a | 100.00 | 97.00 | 85.00 | b | 73.00 | b | 101.00 | f | ||||||||
1998 | 75.00 | 81.00 | 89.00 | 94.00 | a | 101.00 | 108.00 | a | 108.00 | 100.00 | 99.00 | 95.00 | 80.00 | 76.00 | b | 108.00 | d | |||||||||
1999 | 81.00 | b | 82.00 | 85.00 | 95.00 | a | 98.00 | a | 100.00 | 102.00 | b | 101.00 | a | 96.00 | a | 92.00 | 84.00 | 77.00 | b | 102.00 | j | |||||
2000 | 84.00 | 84.00 | 86.00 | 94.00 | 107.00 | 96.00 | a | ----- | z | 98.00 | 103.00 | 99.00 | 73.00 | 73.00 | ----- | z | ||||||||||
2001 | 74.00 | 79.00 | 82.00 | a | 90.00 | 103.00 | 105.00 | 106.00 | 101.00 | e | 93.00 | h | 89.00 | a | 85.00 | 73.00 | b | 106.00 | q | |||||||
2002 | 77.00 | 83.00 | b | 88.00 | d | 96.00 | a | 96.00 | a | 98.00 | 102.00 | b | 103.00 | 95.00 | 88.00 | c | 80.00 | x | ----- | z | ----- | z | ||||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.00 | a | 94.00 | c | 84.00 | w | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 99.00 | t | 96.00 | 80.00 | 66.00 | ----- | z | |||
2012 | 79.00 | 82.00 | 90.00 | c | 102.00 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 76.66 | 80.73 | 86.33 | 93.00 | 99.14 | 101.25 | 102.00 | 100.55 | 96.38 | 91.67 | 82.61 | 76.08 | 105.33 | |||||||||||||
S.D. | 4.67 | 3.98 | 4.95 | 4.13 | 3.99 | 4.21 | 3.48 | 3.11 | 4.13 | 4.75 | 3.97 | 4.12 | 4.47 | |||||||||||||
SKEW | -0.08 | 0.29 | 0.23 | -0.51 | -0.15 | 0.86 | -0.11 | 0.42 | 0.02 | 0.15 | -0.52 | -0.48 | 0.83 | |||||||||||||
MAX | 84.00 | 89.00 | 97.00 | 102.00 | 107.00 | 114.00 | 108.00 | 110.00 | 106.00 | 102.00 | 89.00 | 84.00 | 114.00 | |||||||||||||
MIN | 67.00 | 74.00 | 77.00 | 82.00 | 90.00 | 94.00 | 94.00 | 95.00 | 89.00 | 83.00 | 73.00 | 66.00 | 101.00 | |||||||||||||
YRS | 35 | 37 | 33 | 33 | 35 | 36 | 34 | 31 | 34 | 39 | 36 | 36 | 9 |