YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | 108.00 | 108.00 | 104.00 | 99.00 | 92.00 | 81.00 | 79.00 | ----- | z | |||||||
1941 | 68.00 | 69.00 | 73.00 | 80.00 | 96.00 | 100.00 | 99.00 | 101.00 | 100.00 | 92.00 | 80.00 | 71.00 | a | 101.00 | a | |||||||||||
1942 | 72.00 | 70.00 | 80.00 | 90.00 | 98.00 | 100.00 | 100.00 | 99.00 | 96.00 | 91.00 | b | 84.00 | 70.00 | 100.00 | b | |||||||||||
1943 | 81.00 | 83.00 | 89.00 | a | 96.00 | 92.00 | a | 100.00 | 104.00 | 108.00 | 96.00 | 93.00 | 78.00 | 68.00 | 108.00 | b | ||||||||||
1944 | 56.00 | 71.00 | 78.00 | 80.00 | a | 91.00 | 100.00 | 98.00 | 104.00 | 100.00 | 85.00 | 81.00 | a | 65.00 | 104.00 | b | ||||||||||
1945 | 68.00 | 81.00 | a | 80.00 | a | 90.00 | 100.00 | 100.00 | 102.00 | 105.00 | 106.00 | 86.00 | 86.00 | 74.00 | a | 106.00 | c | |||||||||
1946 | 79.00 | 77.00 | 93.00 | 93.00 | 91.00 | 102.00 | 106.00 | 105.00 | 97.00 | 86.00 | 75.00 | 77.00 | 106.00 | |||||||||||||
1947 | 71.00 | 80.00 | 80.00 | 85.00 | 94.00 | 100.00 | 103.00 | 104.00 | 106.00 | d | 94.00 | d | 71.00 | i | 72.00 | e | 106.00 | v | ||||||||
1948 | 75.00 | 75.00 | 78.00 | 96.00 | 99.00 | 103.00 | 104.00 | 99.00 | 100.00 | 91.00 | 77.00 | 75.00 | a | 104.00 | a | |||||||||||
1949 | 64.00 | a | 73.00 | 78.00 | 86.00 | 93.00 | 99.00 | 101.00 | 100.00 | 92.00 | 91.00 | 83.00 | 68.00 | 101.00 | a | |||||||||||
1950 | 77.00 | 78.00 | 86.00 | 93.00 | a | 94.00 | 103.00 | 96.00 | 96.00 | 86.00 | 91.00 | 84.00 | 71.00 | 103.00 | a | |||||||||||
1951 | 81.00 | 84.00 | 82.00 | 90.00 | 92.00 | 95.00 | 104.00 | 102.00 | 98.00 | 94.00 | 75.00 | 78.00 | a | 104.00 | a | |||||||||||
1952 | 76.00 | 73.00 | 80.00 | 88.00 | 95.00 | 106.00 | 103.00 | 105.00 | 95.00 | 92.00 | 86.00 | 67.00 | 106.00 | |||||||||||||
1953 | 83.00 | 71.00 | 84.00 | 92.00 | 102.00 | 107.00 | 105.00 | 103.00 | 99.00 | 91.00 | 75.00 | 67.00 | 107.00 | |||||||||||||
1954 | 79.00 | 82.00 | 80.00 | 91.00 | 93.00 | a | 100.00 | 106.00 | 101.00 | 102.00 | 98.00 | 79.00 | 79.00 | 106.00 | a | |||||||||||
1955 | 69.00 | 72.00 | a | 82.00 | 90.00 | 93.00 | 102.00 | 104.00 | 102.00 | 100.00 | 93.00 | 83.00 | 86.00 | 104.00 | a | |||||||||||
1956 | 80.00 | 74.00 | 90.00 | 93.00 | 99.00 | 103.00 | 103.00 | 106.00 | 100.00 | 96.00 | 83.00 | 74.00 | 106.00 | |||||||||||||
1957 | 66.00 | 77.00 | 78.00 | 87.00 | a | 83.00 | 105.00 | 107.00 | 103.00 | 94.00 | a | 91.00 | 74.00 | 74.00 | 107.00 | b | ||||||||||
1958 | 66.00 | 70.00 | 72.00 | 80.00 | 101.00 | 100.00 | 100.00 | 102.00 | 97.00 | 92.00 | 80.00 | 71.00 | 102.00 | |||||||||||||
1959 | 64.00 | 70.00 | 81.00 | 93.00 | 96.00 | 101.00 | 99.00 | 104.00 | 101.00 | 91.00 | 79.00 | a | 71.00 | 104.00 | a | |||||||||||
1960 | 68.00 | 58.00 | 86.00 | 92.00 | 95.00 | 108.00 | 104.00 | 102.00 | 97.00 | 88.00 | 79.00 | 68.00 | 108.00 | |||||||||||||
1961 | 68.00 | 83.00 | 81.00 | 90.00 | 95.00 | 100.00 | 103.00 | 103.00 | 100.00 | 90.00 | 73.00 | 72.00 | 103.00 | |||||||||||||
1962 | 71.00 | 87.00 | 85.00 | 89.00 | 102.00 | 93.00 | 101.00 | 104.00 | 98.00 | a | 92.00 | 78.00 | 73.00 | 104.00 | a | |||||||||||
1963 | 72.00 | 88.00 | 91.00 | 94.00 | 100.00 | 100.00 | 103.00 | 101.00 | 94.00 | 93.00 | 78.00 | 69.00 | 103.00 | |||||||||||||
1964 | 74.00 | 64.00 | 81.00 | 91.00 | 102.00 | 99.00 | 103.00 | 104.00 | 97.00 | 90.00 | 78.00 | 73.00 | 104.00 | |||||||||||||
1965 | 76.00 | 77.00 | 79.00 | 95.00 | 94.00 | 94.00 | 99.00 | 100.00 | 98.00 | 92.00 | 79.00 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | 71.00 | k | 79.00 | k | 78.00 | k | 91.00 | h | 99.00 | j | 94.00 | n | 104.00 | j | 105.00 | u | 104.00 | s | 92.00 | u | 59.00 | x | ----- | z | ----- | z |
2001 | 64.00 | i | 65.00 | i | 72.00 | l | 86.00 | v | ----- | z | 99.00 | s | ----- | z | 102.00 | d | 99.00 | g | 89.00 | b | 86.00 | e | 73.00 | g | ----- | z |
2002 | 78.00 | e | 77.00 | d | 85.00 | d | 93.00 | 95.00 | c | 103.00 | b | 103.00 | a | 101.00 | f | 95.00 | e | 90.00 | f | 78.00 | g | 66.00 | p | ----- | z | |
2003 | 75.00 | a | 79.00 | e | 83.00 | l | 89.00 | n | 98.00 | h | 94.00 | b | 105.00 | c | 106.00 | g | 96.00 | h | 93.00 | e | 78.00 | e | 74.00 | s | ----- | z |
2004 | 68.00 | q | 76.00 | i | 89.00 | e | 87.00 | j | 101.00 | v | 103.00 | h | 101.00 | f | 98.00 | d | 101.00 | k | 83.00 | u | 77.00 | o | 73.00 | s | ----- | z |
2005 | 76.00 | s | 75.00 | h | 84.00 | a | 87.00 | n | 100.00 | m | 98.00 | p | 102.00 | n | 100.00 | q | 95.00 | t | 87.00 | o | 85.00 | n | 78.00 | a | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 104.00 | d | 104.00 | d | 102.00 | d | 92.00 | c | 95.00 | 80.00 | b | 70.00 | b | ----- | z | |
2007 | 68.00 | a | 72.00 | 85.00 | 85.00 | 88.00 | 94.00 | 104.00 | 103.00 | 99.00 | 93.00 | 85.00 | 75.00 | 104.00 | a | |||||||||||
2008 | 73.00 | 69.00 | 80.00 | 95.00 | 97.00 | 109.00 | 101.00 | 102.00 | 88.00 | a | 92.00 | 83.00 | 76.00 | 109.00 | a | |||||||||||
2009 | 73.00 | e | ----- | z | 83.00 | c | 90.00 | b | 94.00 | b | 101.00 | 108.00 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 72.37 | 75.31 | 82.35 | 89.90 | 95.31 | 101.03 | 102.65 | 102.39 | 97.40 | 91.52 | 80.00 | 72.79 | 104.56 | |||||||||||||
S.D. | 6.17 | 6.78 | 4.86 | 4.52 | 4.38 | 4.14 | 2.73 | 2.47 | 4.34 | 2.76 | 3.70 | 4.59 | 2.31 | |||||||||||||
SKEW | -0.39 | -0.23 | 0.20 | -0.89 | -0.49 | -0.08 | -0.39 | -0.35 | -0.52 | -0.37 | 0.00 | 0.71 | -0.01 | |||||||||||||
MAX | 83.00 | 88.00 | 93.00 | 96.00 | 102.00 | 109.00 | 108.00 | 108.00 | 106.00 | 98.00 | 86.00 | 86.00 | 109.00 | |||||||||||||
MIN | 56.00 | 58.00 | 72.00 | 80.00 | 83.00 | 93.00 | 96.00 | 96.00 | 86.00 | 85.00 | 73.00 | 65.00 | 100.00 | |||||||||||||
YRS | 30 | 29 | 31 | 29 | 29 | 32 | 31 | 31 | 30 | 31 | 30 | 29 | 25 |