YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | 63.00 | q | 72.00 | 74.00 | 86.00 | 89.00 | 93.00 | 94.00 | 91.00 | 91.00 | 85.00 | 75.00 | 70.00 | b | 94.00 | s | ||||||||||
1942 | 68.00 | 76.00 | 75.00 | d | 86.00 | f | 94.00 | 99.00 | a | 94.00 | 98.00 | 89.00 | 84.00 | 79.00 | 75.00 | s | ----- | z | ||||||||
1943 | 74.00 | a | 78.00 | 84.00 | 94.00 | 93.00 | 96.00 | 97.00 | i | 100.00 | 94.00 | 85.00 | a | 80.00 | a | 61.00 | a | 100.00 | m | |||||||
1944 | 65.00 | b | 69.00 | b | 75.00 | 80.00 | a | 91.00 | b | 99.00 | b | 105.00 | 104.00 | a | 92.00 | 82.00 | 75.00 | 67.00 | 105.00 | j | ||||||
1945 | 65.00 | 75.00 | c | 76.00 | 84.00 | a | 95.00 | 99.00 | a | 95.00 | a | 99.00 | 99.00 | 84.00 | 79.00 | 70.00 | 99.00 | f | ||||||||
1946 | 68.00 | 74.00 | 89.00 | 87.00 | 88.00 | 102.00 | 99.00 | 98.00 | 90.00 | a | 82.00 | 72.00 | c | 73.00 | 102.00 | d | ||||||||||
1947 | 71.00 | 72.00 | 80.00 | 83.00 | 96.00 | 99.00 | n | 100.00 | 98.00 | 97.00 | 88.00 | c | 69.00 | 65.00 | 100.00 | q | ||||||||||
1948 | 73.00 | a | 73.00 | 79.00 | 91.00 | 93.00 | 100.00 | 100.00 | 99.00 | 99.00 | 85.00 | d | 76.00 | a | 69.00 | 100.00 | f | |||||||||
1949 | 59.00 | 72.00 | 77.00 | 86.00 | 93.00 | h | 99.00 | 100.00 | 96.00 | 91.00 | 85.00 | b | 79.00 | 66.00 | a | 100.00 | k | |||||||||
1950 | 78.00 | 78.00 | 80.00 | i | 90.00 | 93.00 | 100.00 | 95.00 | 98.00 | 89.00 | 86.00 | 83.00 | 73.00 | 100.00 | i | |||||||||||
1951 | 70.00 | c | 76.00 | 77.00 | 87.00 | 96.00 | 103.00 | 104.00 | 101.00 | a | 99.00 | 89.00 | 73.00 | b | 71.00 | 104.00 | f | |||||||||
1952 | 77.00 | 70.00 | 73.00 | 84.00 | 94.00 | 100.00 | 95.00 | 100.00 | 95.00 | 86.00 | 81.00 | 66.00 | 100.00 | |||||||||||||
1953 | 74.00 | 73.00 | 80.00 | 86.00 | 99.00 | 102.00 | 102.00 | 99.00 | 96.00 | 87.00 | 76.00 | 65.00 | 102.00 | |||||||||||||
1954 | 72.00 | 76.00 | 78.00 | a | 89.00 | 90.00 | 98.00 | 103.00 | 97.00 | 95.00 | 91.00 | 76.00 | 75.00 | 103.00 | a | |||||||||||
1955 | 69.00 | 70.00 | 78.00 | 85.00 | 89.00 | 100.00 | 97.00 | 95.00 | 93.00 | 84.00 | 78.00 | 75.00 | 100.00 | |||||||||||||
1956 | 72.00 | 76.00 | 82.00 | 87.00 | 95.00 | 99.00 | 100.00 | 97.00 | 98.00 | 89.00 | 79.00 | 70.00 | 100.00 | |||||||||||||
1957 | 72.00 | 78.00 | 76.00 | 85.00 | 88.00 | 105.00 | 105.00 | 97.00 | 91.00 | 90.00 | 78.00 | 68.00 | 105.00 | |||||||||||||
1958 | 70.00 | 71.00 | 73.00 | 86.00 | 98.00 | 98.00 | 105.00 | 99.00 | 98.00 | 86.00 | 78.00 | 77.00 | 105.00 | |||||||||||||
1959 | 70.00 | 73.00 | 77.00 | 90.00 | 92.00 | 99.00 | 95.00 | 100.00 | 97.00 | 93.00 | 73.00 | 67.00 | a | 100.00 | a | |||||||||||
1960 | 62.00 | 70.00 | 78.00 | 89.00 | 95.00 | 103.00 | 103.00 | 95.00 | 94.00 | 85.00 | 75.00 | 61.00 | 103.00 | |||||||||||||
1961 | 64.00 | 76.00 | e | 78.00 | e | 87.00 | 92.00 | 96.00 | 95.00 | 94.00 | 90.00 | 86.00 | 72.00 | 72.00 | 96.00 | j | ||||||||||
1962 | 68.00 | 81.00 | 80.00 | 89.00 | 95.00 | 99.00 | 97.00 | 98.00 | 93.00 | 86.00 | 76.00 | 70.00 | a | 99.00 | a | |||||||||||
1963 | 71.00 | 75.00 | 86.00 | 87.00 | 93.00 | 95.00 | 101.00 | 96.00 | 92.00 | 88.00 | 77.00 | 70.00 | 101.00 | |||||||||||||
1964 | 67.00 | 58.00 | 72.00 | 84.00 | 95.00 | 97.00 | 102.00 | 100.00 | 96.00 | 85.00 | 77.00 | 73.00 | 102.00 | |||||||||||||
1965 | 70.00 | 72.00 | 75.00 | 94.00 | 92.00 | 96.00 | 98.00 | 94.00 | 90.00 | 90.00 | 76.00 | 70.00 | 98.00 | |||||||||||||
1966 | 62.00 | 65.00 | 79.00 | 82.00 | 93.00 | 94.00 | 99.00 | 101.00 | 88.00 | 82.00 | 79.00 | 71.00 | 101.00 | |||||||||||||
1967 | 74.00 | 75.00 | 83.00 | 86.00 | 93.00 | 96.00 | 98.00 | 98.00 | 92.00 | 89.00 | 82.00 | 69.00 | 98.00 | |||||||||||||
1968 | 68.00 | e | 72.00 | 80.00 | 80.00 | a | 97.00 | q | 104.00 | 97.00 | 95.00 | 90.00 | 89.00 | 76.00 | 67.00 | 104.00 | w | |||||||||
1969 | 75.00 | c | 70.00 | 75.00 | 84.00 | 93.00 | 101.00 | 101.00 | 104.00 | 90.00 | 88.00 | 75.00 | 74.00 | 104.00 | c | |||||||||||
1970 | 78.00 | 78.00 | 75.00 | d | 83.00 | 93.00 | 102.00 | 99.00 | m | 98.00 | 98.00 | 82.00 | 78.00 | 75.00 | 102.00 | q | ||||||||||
1971 | 75.00 | 73.00 | 88.00 | 89.00 | 93.00 | 95.00 | ----- | z | 93.00 | 93.00 | 85.00 | 78.00 | 72.00 | ----- | z | |||||||||||
1972 | 77.00 | 80.00 | a | 84.00 | 92.00 | 92.00 | 100.00 | 99.00 | 99.00 | 90.00 | 89.00 | 72.00 | 70.00 | 100.00 | a | |||||||||||
1973 | 65.00 | 71.00 | 72.00 | 82.00 | a | 92.00 | 103.00 | 103.00 | 99.00 | 96.00 | 91.00 | ----- | z | ----- | z | ----- | z | |||||||||
1974 | 76.00 | e | ----- | z | ----- | z | 86.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.00 | c | ----- | z |
1975 | 78.00 | 74.00 | 80.00 | 87.00 | 90.00 | 100.00 | 95.00 | 99.00 | 96.00 | a | 90.00 | ----- | z | ----- | z | ----- | z | |||||||||
1976 | 70.00 | 80.00 | a | 84.00 | 87.00 | 95.00 | 105.00 | 100.00 | 99.00 | 94.00 | 86.00 | a | 78.00 | 71.00 | 105.00 | b | ||||||||||
1977 | 63.00 | a | 77.00 | 77.00 | a | 86.00 | a | 98.00 | 106.00 | 104.00 | 102.00 | 98.00 | 92.00 | 81.00 | 77.00 | 106.00 | c | |||||||||
1978 | 74.00 | 65.00 | 82.00 | a | 90.00 | 98.00 | 105.00 | 105.00 | 99.00 | 94.00 | 88.00 | 78.00 | 71.00 | 105.00 | a | |||||||||||
1979 | 65.00 | 81.00 | 79.00 | 91.00 | a | 91.00 | b | 102.00 | 102.00 | 96.00 | 98.00 | 96.00 | 75.00 | 70.00 | 102.00 | c | ||||||||||
1980 | 72.00 | 79.00 | 76.00 | 87.00 | 92.00 | 107.00 | 103.00 | 105.00 | 95.00 | 88.00 | 85.00 | a | 75.00 | 107.00 | a | |||||||||||
1981 | 71.00 | 80.00 | 78.00 | 91.00 | 93.00 | 109.00 | 103.00 | a | 98.00 | 95.00 | 91.00 | 82.00 | 75.00 | 109.00 | a | |||||||||||
1982 | 69.00 | 80.00 | 84.00 | a | 88.00 | a | 92.00 | 99.00 | 99.00 | 104.00 | 98.00 | 86.00 | a | 80.00 | 70.00 | 104.00 | c | |||||||||
1983 | 67.00 | 72.00 | 89.00 | 85.00 | a | 91.00 | 102.00 | a | 103.00 | 104.00 | 104.00 | 88.00 | 77.00 | 70.00 | a | 104.00 | c | |||||||||
1984 | 65.00 | 70.00 | 80.00 | 89.00 | 98.00 | 95.00 | 94.00 | 96.00 | 100.00 | 85.00 | 82.00 | 74.00 | 100.00 | |||||||||||||
1985 | 70.00 | 72.00 | 83.00 | 88.00 | ----- | z | 95.00 | 98.00 | a | 102.00 | b | 95.00 | b | ----- | z | 79.00 | a | 71.00 | ----- | z | ||||||
1986 | 78.00 | 83.00 | 84.00 | ----- | z | ----- | z | 95.00 | 99.00 | 102.00 | 90.00 | 85.00 | 72.00 | 63.00 | ----- | z | ||||||||||
1987 | 72.00 | 74.00 | 74.00 | 91.00 | a | 88.00 | 100.00 | a | 101.00 | 98.00 | a | 89.00 | 90.00 | 77.00 | 74.00 | 101.00 | c | |||||||||
1988 | 67.00 | 74.00 | 83.00 | 84.00 | 97.00 | 95.00 | 93.00 | 97.00 | d | 92.00 | h | 90.00 | 80.00 | 65.00 | 97.00 | l | ||||||||||
1989 | 69.00 | 83.00 | 90.00 | 98.00 | 102.00 | 97.00 | 105.00 | 101.00 | 88.00 | 90.00 | 78.00 | 71.00 | 105.00 | |||||||||||||
1990 | 70.00 | 75.00 | 80.00 | 87.00 | 96.00 | 110.00 | 95.00 | 93.00 | 90.00 | 84.00 | 77.00 | 71.00 | 110.00 | |||||||||||||
1991 | 62.00 | 71.00 | 80.00 | 88.00 | 96.00 | 98.00 | a | 95.00 | 92.00 | 91.00 | 92.00 | 74.00 | 66.00 | 98.00 | a | |||||||||||
1992 | 65.00 | 71.00 | 78.00 | 91.00 | 92.00 | a | 96.00 | 105.00 | 97.00 | 95.00 | 89.00 | 74.00 | 70.00 | a | 105.00 | b | ||||||||||
1993 | 66.00 | a | 72.00 | a | 81.00 | b | 89.00 | a | 92.00 | b | 99.00 | b | 100.00 | a | 93.00 | a | 95.00 | a | 89.00 | b | 73.00 | 70.00 | a | 100.00 | o | |
1994 | 73.00 | 72.00 | 81.00 | a | 86.00 | a | 95.00 | 112.00 | b | 104.00 | a | 105.00 | 96.00 | a | 88.00 | b | 79.00 | a | 69.00 | 112.00 | i | |||||
1995 | 69.00 | 76.00 | 85.00 | 87.00 | c | 94.00 | c | 99.00 | a | 111.00 | a | 98.00 | 101.00 | b | 86.00 | b | 79.00 | 74.00 | 111.00 | l | ||||||
1996 | 70.00 | 77.00 | a | 79.00 | a | 94.00 | d | 102.00 | 104.00 | b | 99.00 | 97.00 | 88.00 | 92.00 | 83.00 | 72.00 | 104.00 | h | ||||||||
1997 | 74.00 | b | 75.00 | a | 87.00 | 85.00 | 90.00 | c | 102.00 | a | 102.00 | a | 100.00 | a | 96.00 | 89.00 | a | 79.00 | 66.00 | a | 102.00 | k | ||||
1998 | 67.00 | 75.00 | 85.00 | 87.00 | a | 100.00 | 108.00 | a | 99.00 | e | 96.00 | a | 98.00 | 89.00 | a | 75.00 | 69.00 | 108.00 | i | |||||||
1999 | 73.00 | 75.00 | 79.00 | 87.00 | 92.00 | 103.00 | c | 100.00 | a | 97.00 | 96.00 | b | 90.00 | e | 82.00 | b | 68.00 | 103.00 | m | |||||||
2000 | 79.00 | a | 79.00 | a | 80.00 | a | 98.00 | a | 110.00 | a | 102.00 | b | 107.00 | 100.00 | a | 100.00 | a | 98.00 | b | 64.00 | m | ----- | z | ----- | z | |
2001 | ----- | z | ----- | z | 81.00 | j | 93.00 | c | 95.00 | b | 104.00 | a | 106.00 | c | 99.00 | n | ----- | z | ----- | z | 79.00 | a | 69.00 | ----- | z | |
2002 | 72.00 | b | 77.00 | 83.00 | b | 91.00 | b | 98.00 | b | 104.00 | 104.00 | 107.00 | b | 92.00 | 84.00 | b | 74.00 | 66.00 | c | 107.00 | o | |||||
2003 | 72.00 | 74.00 | 82.00 | b | 88.00 | 101.00 | 95.00 | a | 103.00 | a | 103.00 | a | 95.00 | c | 89.00 | a | 80.00 | 72.00 | 103.00 | i | ||||||
2004 | 70.00 | b | 74.00 | c | 85.00 | a | 82.00 | a | 95.00 | a | 102.00 | c | 99.00 | e | 97.00 | a | 94.00 | 86.00 | a | 75.00 | h | ----- | z | ----- | z | |
2005 | 73.00 | u | 72.00 | a | 79.00 | 84.00 | a | 102.00 | e | 103.00 | 104.00 | a | 96.00 | 95.00 | 88.00 | a | 82.00 | a | 74.00 | b | ----- | z | ||||
2006 | 73.00 | b | 73.00 | 81.00 | 91.00 | a | 101.00 | b | 104.00 | a | 103.00 | b | 93.00 | j | 89.00 | 89.00 | 84.00 | 74.00 | 104.00 | r | ||||||
2007 | 64.00 | a | 74.00 | 86.00 | 84.00 | a | 88.00 | 96.00 | 96.00 | a | 106.00 | a | 95.00 | a | 91.00 | 81.00 | b | 78.00 | b | 106.00 | i | |||||
2008 | 68.00 | a | 79.00 | b | 82.00 | b | 88.00 | a | ----- | z | ----- | z | ----- | z | 94.00 | m | 89.00 | r | 86.00 | 79.00 | 76.00 | ----- | z | |||
2009 | 76.00 | b | 82.00 | 84.00 | a | 90.00 | e | 96.00 | 98.00 | b | 101.00 | c | 99.00 | b | 93.00 | b | 87.00 | a | 79.00 | 65.00 | a | 101.00 | s | |||
2010 | 65.00 | 66.00 | a | 85.00 | 84.00 | 94.00 | b | 102.00 | 100.00 | b | 97.00 | 95.00 | a | 83.00 | 76.00 | 75.00 | 102.00 | f | ||||||||
2011 | 72.00 | 80.00 | a | 85.00 | a | 93.00 | 99.00 | a | 106.00 | 101.00 | 104.00 | a | 96.00 | 88.00 | 73.00 | 66.00 | b | 106.00 | f | |||||||
2012 | 73.00 | 74.00 | 88.00 | b | 97.00 | b | 99.00 | 105.00 | a | 100.00 | a | 102.00 | 99.00 | 91.00 | ----- | z | ----- | z | ----- | z | ||||||
2013 | 73.00 | ----- | z | ----- | z | ----- | z | 97.00 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 70.21 | 74.36 | 80.38 | 87.71 | 94.52 | 100.52 | 100.28 | 98.69 | 94.24 | 87.67 | 77.55 | 70.26 | 102.63 | |||||||||||||
S.D. | 4.52 | 4.44 | 4.40 | 3.86 | 4.05 | 4.12 | 3.78 | 3.44 | 3.63 | 3.17 | 3.32 | 3.80 | 3.08 | |||||||||||||
SKEW | -0.15 | -0.61 | 0.14 | 0.55 | 0.95 | 0.43 | 0.07 | 0.24 | 0.13 | 0.50 | -0.11 | -0.24 | 0.45 | |||||||||||||
MAX | 79.00 | 83.00 | 90.00 | 98.00 | 110.00 | 112.00 | 111.00 | 107.00 | 104.00 | 98.00 | 85.00 | 78.00 | 110.00 | |||||||||||||
MIN | 59.00 | 58.00 | 72.00 | 80.00 | 88.00 | 93.00 | 93.00 | 91.00 | 88.00 | 82.00 | 69.00 | 61.00 | 98.00 | |||||||||||||
YRS | 70 | 70 | 69 | 70 | 67 | 69 | 67 | 68 | 68 | 69 | 66 | 66 | 32 |