YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 44.00 | s | ----- | 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 | 68.00 | l | 75.00 | d | 84.00 | b | 95.00 | 89.00 | 85.00 | 89.00 | 72.00 | d | 68.00 | b | 67.00 | ----- | z | |||||
1940 | 57.00 | 69.00 | b | 69.00 | 75.00 | 86.00 | 92.00 | 90.00 | a | 88.00 | 79.00 | 72.00 | 64.00 | b | 56.00 | a | 92.00 | f | ||||||||
1941 | 52.00 | 61.00 | 65.00 | d | 63.00 | 80.00 | 85.00 | 85.00 | 85.00 | 83.00 | f | 73.00 | g | 65.00 | 59.00 | 85.00 | q | |||||||||
1942 | 58.00 | d | 60.00 | 66.00 | b | 73.00 | 81.00 | 93.00 | 90.00 | 81.00 | b | 82.00 | f | 74.00 | b | ----- | z | 58.00 | m | ----- | z | |||||
1943 | 61.00 | 64.00 | 72.00 | e | 82.00 | 80.00 | 85.00 | a | 86.00 | 84.00 | 84.00 | 73.00 | 70.00 | a | 58.00 | k | 86.00 | r | ||||||||
1944 | ----- | z | 56.00 | 66.00 | a | 72.00 | 81.00 | 91.00 | 91.00 | 92.00 | 84.00 | 85.00 | 65.00 | 56.00 | ----- | z | ||||||||||
1945 | 57.00 | 63.00 | a | 66.00 | 78.00 | a | ----- | z | 89.00 | a | 88.00 | b | 83.00 | 91.00 | s | ----- | z | ----- | z | ----- | z | ----- | z | |||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | 88.00 | q | 90.00 | 86.00 | 82.00 | 77.00 | b | 71.00 | c | 63.00 | i | 63.00 | r | ----- | z | |||
1947 | ----- | z | 61.00 | o | 70.00 | e | 75.00 | 84.00 | 88.00 | 90.00 | 88.00 | 84.00 | g | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1948 | ----- | z | ----- | z | ----- | z | 81.00 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | 85.00 | v | 88.00 | q | 88.00 | g | ----- | z | ----- | z | ----- | z | 68.00 | t | ----- | z | ----- | z |
1950 | 58.00 | v | 67.00 | l | 67.00 | o | ----- | z | 84.00 | f | 92.00 | a | 89.00 | a | 88.00 | g | 89.00 | d | 80.00 | c | 74.00 | e | 70.00 | f | ----- | z |
1951 | 62.00 | h | 67.00 | 65.00 | k | 75.00 | k | 92.00 | f | 96.00 | h | 95.00 | b | 89.00 | n | 84.00 | u | 76.00 | j | 63.00 | j | 61.00 | f | ----- | z | |
1952 | 61.00 | j | 59.00 | q | 62.00 | s | 71.00 | b | 82.00 | l | 88.00 | i | 90.00 | j | 85.00 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | 69.00 | i | 68.00 | p | 54.00 | y | ----- | z | 86.00 | e | 96.00 | 96.00 | 90.00 | o | ----- | z | 78.00 | y | 67.00 | r | 60.00 | f | ----- | z | ||
1954 | 61.00 | o | ----- | z | 71.00 | x | 79.00 | v | 82.00 | h | 91.00 | l | 92.00 | o | 87.00 | k | 83.00 | o | 78.00 | o | 71.00 | 65.00 | ----- | z | ||
1955 | 61.00 | a | 67.00 | g | 67.00 | a | 72.00 | 79.00 | a | 91.00 | 90.00 | c | 82.00 | c | 86.00 | l | 79.00 | 66.00 | j | 65.00 | a | ----- | z | |||
1956 | 61.00 | d | 60.00 | 76.00 | 74.00 | b | 89.00 | 93.00 | 92.00 | 90.00 | 88.00 | 80.00 | 74.00 | j | 60.00 | x | ----- | z | ||||||||
1957 | 59.00 | 72.00 | g | 70.00 | b | 76.00 | 80.00 | 96.00 | ----- | z | 81.00 | 81.00 | 73.00 | b | 61.00 | a | 65.00 | g | ----- | z | ||||||
1958 | 58.00 | 66.00 | 67.00 | 79.00 | 89.00 | 92.00 | 97.00 | 88.00 | 85.00 | a | 77.00 | a | 69.00 | a | 70.00 | b | 97.00 | e | ||||||||
1959 | 66.00 | 62.00 | 68.00 | 80.00 | 85.00 | 91.00 | 92.00 | 89.00 | 82.00 | a | 84.00 | 67.00 | 59.00 | 92.00 | a | |||||||||||
1960 | 54.00 | 57.00 | i | 72.00 | 78.00 | 85.00 | b | 94.00 | 92.00 | a | 88.00 | 82.00 | 76.00 | 68.00 | 60.00 | 94.00 | l | |||||||||
1961 | 57.00 | 66.00 | 68.00 | 80.00 | 84.00 | 92.00 | 91.00 | 90.00 | a | 80.00 | 77.00 | 65.00 | 58.00 | 92.00 | a | |||||||||||
1962 | 56.00 | 64.00 | 69.00 | 81.00 | 82.00 | 89.00 | 90.00 | 93.00 | 87.00 | 76.00 | 71.00 | e | ----- | z | ----- | z | ||||||||||
1963 | ----- | z | 63.00 | m | 75.00 | d | 81.00 | 82.00 | 89.00 | a | 89.00 | a | 85.00 | 82.00 | 80.00 | 69.00 | 64.00 | ----- | z | |||||||
1964 | 60.00 | 61.00 | 72.00 | 77.00 | 89.00 | 90.00 | 94.00 | 88.00 | 88.00 | 80.00 | 69.00 | 64.00 | 94.00 | |||||||||||||
1965 | 61.00 | e | 62.00 | c | 70.00 | k | 84.00 | a | 83.00 | 92.00 | 91.00 | 87.00 | 80.00 | 83.00 | 69.00 | 66.00 | 92.00 | t | ||||||||
1966 | 54.00 | 55.00 | 73.00 | 74.00 | 84.00 | 90.00 | 95.00 | 87.00 | 83.00 | 76.00 | 69.00 | 63.00 | 95.00 | |||||||||||||
1967 | 67.00 | 65.00 | 75.00 | 78.00 | 85.00 | 89.00 | 95.00 | 87.00 | 85.00 | a | 78.00 | 73.00 | 52.00 | 95.00 | a | |||||||||||
1968 | 50.00 | 64.00 | 70.00 | 75.00 | 86.00 | 95.00 | 91.00 | 84.00 | 85.00 | 79.00 | 68.00 | 59.00 | 95.00 | |||||||||||||
1969 | 63.00 | 61.00 | 73.00 | 80.00 | 88.00 | 95.00 | 93.00 | 89.00 | 83.00 | 79.00 | 64.00 | 64.00 | a | 95.00 | a | |||||||||||
1970 | 68.00 | 67.00 | 65.00 | 70.00 | 86.00 | 92.00 | 94.00 | a | 88.00 | 87.00 | 77.00 | 68.00 | ----- | z | ----- | z | ||||||||||
1971 | 67.00 | 66.00 | 78.00 | 77.00 | 81.00 | 95.00 | 94.00 | 85.00 | 87.00 | 72.00 | 67.00 | 61.00 | 95.00 | |||||||||||||
1972 | 61.00 | 69.00 | 73.00 | 81.00 | 80.00 | 94.00 | 93.00 | 89.00 | 80.00 | 81.00 | 62.00 | 60.00 | 94.00 | |||||||||||||
1973 | 58.00 | 61.00 | a | 61.00 | 73.00 | 81.00 | a | 95.00 | 94.00 | 88.00 | 86.00 | 79.00 | 75.00 | c | 68.00 | 95.00 | e | |||||||||
1974 | 66.00 | b | 66.00 | 75.00 | 79.00 | 88.00 | a | 95.00 | 94.00 | 85.00 | 89.00 | 76.00 | 69.00 | ----- | z | ----- | z | |||||||||
1975 | 63.00 | ----- | z | 67.00 | 73.00 | b | 80.00 | a | 92.00 | c | 91.00 | c | 89.00 | h | 86.00 | e | 77.00 | f | 70.00 | c | 60.00 | ----- | z | |||
1976 | 61.00 | e | 64.00 | f | 69.00 | k | 72.00 | l | 83.00 | d | 89.00 | b | 90.00 | b | 89.00 | b | 81.00 | k | 77.00 | h | 67.00 | g | 57.00 | j | ----- | z |
1977 | 59.00 | m | 66.00 | i | 65.00 | c | 83.00 | b | 88.00 | a | 93.00 | c | 89.00 | a | 89.00 | f | 85.00 | b | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | 57.00 | e | 61.00 | b | 67.00 | b | 78.00 | 81.00 | 91.00 | 96.00 | a | 93.00 | a | ----- | z | ----- | z | ----- | z | 61.00 | m | ----- | z | |||
1980 | 60.00 | g | 66.00 | d | 65.00 | 78.00 | c | 86.00 | e | 96.00 | a | 96.00 | 93.00 | a | 85.00 | e | 84.00 | b | 76.00 | g | 67.00 | i | ----- | z | ||
1981 | 59.00 | j | 64.00 | h | 69.00 | i | 79.00 | 81.00 | a | 98.00 | a | 92.00 | c | 87.00 | a | 88.00 | 80.00 | f | 71.00 | n | 68.00 | g | ----- | z | ||
1982 | 64.00 | e | 65.00 | k | 70.00 | f | 76.00 | e | 82.00 | 92.00 | 95.00 | 85.00 | 86.00 | 76.00 | b | 65.00 | 60.00 | h | ----- | z | ||||||
1983 | 59.00 | b | 64.00 | a | 69.00 | b | 72.00 | g | 83.00 | b | 91.00 | g | 95.00 | e | 88.00 | e | 90.00 | 77.00 | 69.00 | a | 60.00 | f | ----- | z | ||
1984 | 63.00 | e | 61.00 | 70.00 | 76.00 | d | 90.00 | 91.00 | 94.00 | 85.00 | 86.00 | 72.00 | 70.00 | 60.00 | a | 94.00 | j | |||||||||
1985 | 59.00 | 65.00 | a | 72.00 | 77.00 | 83.00 | 93.00 | 94.00 | a | 89.00 | c | 86.00 | 79.00 | 67.00 | 60.00 | 94.00 | e | |||||||||
1986 | 68.00 | c | 73.00 | a | 73.00 | 78.00 | 87.00 | 92.00 | 91.00 | 94.00 | a | 83.00 | a | 78.00 | b | 66.00 | 61.00 | c | 94.00 | k | ||||||
1987 | 62.00 | 61.00 | a | 66.00 | a | 79.00 | 77.00 | a | 90.00 | b | 91.00 | e | 88.00 | 80.00 | l | 80.00 | 68.00 | 67.00 | g | ----- | z | |||||
1988 | 56.00 | b | 65.00 | b | 76.00 | b | 77.00 | 86.00 | a | 91.00 | 91.00 | a | 87.00 | d | 84.00 | 76.00 | 79.00 | 61.00 | a | 91.00 | m | |||||
1989 | 57.00 | j | 72.00 | i | 78.00 | b | 83.00 | 91.00 | a | 98.00 | c | 99.00 | a | 89.00 | b | 83.00 | d | 80.00 | b | 70.00 | d | 66.00 | c | ----- | z | |
1990 | 62.00 | c | 65.00 | a | 74.00 | b | 80.00 | c | 86.00 | b | 99.00 | c | 96.00 | 88.00 | e | 85.00 | h | 75.00 | c | 70.00 | h | 62.00 | b | ----- | z | |
1991 | 54.00 | m | 63.00 | e | 70.00 | c | 77.00 | c | 82.00 | e | 87.00 | b | 92.00 | 86.00 | a | 81.00 | h | 80.00 | b | 70.00 | c | 58.00 | h | ----- | z | |
1992 | 52.00 | l | 63.00 | d | 65.00 | c | 82.00 | a | 80.00 | a | 88.00 | 94.00 | b | 89.00 | e | 88.00 | a | 80.00 | d | 68.00 | b | 60.00 | ----- | z | ||
1993 | 57.00 | l | 59.00 | g | 71.00 | g | 79.00 | e | 83.00 | k | 92.00 | d | 95.00 | d | 91.00 | e | 83.00 | h | 81.00 | h | 68.00 | j | 62.00 | d | ----- | z |
1994 | 65.00 | i | 63.00 | k | 70.00 | g | 78.00 | j | 88.00 | f | 101.00 | f | 99.00 | c | 94.00 | c | 83.00 | a | 79.00 | c | 74.00 | g | 59.00 | i | ----- | z |
1995 | 56.00 | f | 67.00 | c | 70.00 | e | 75.00 | j | 82.00 | d | 91.00 | 101.00 | f | 93.00 | b | 90.00 | e | 78.00 | p | 74.00 | i | 65.00 | k | ----- | z | |
1996 | 64.00 | w | 69.00 | r | 68.00 | x | 85.00 | h | 92.00 | d | ----- | z | 93.00 | d | 91.00 | n | 89.00 | o | 85.00 | c | 72.00 | u | 63.00 | y | ----- | z |
1997 | 55.00 | q | 62.00 | s | ----- | z | 76.00 | b | 89.00 | 91.00 | d | 96.00 | d | 89.00 | q | 85.00 | l | 81.00 | x | ----- | z | ----- | z | ----- | z | |
1998 | 61.00 | q | 60.00 | i | 73.00 | g | 77.00 | m | 83.00 | j | 98.00 | g | 100.00 | o | ----- | z | ----- | z | ----- | z | 67.00 | n | 65.00 | k | ----- | z |
1999 | 68.00 | b | 65.00 | k | 73.00 | a | 77.00 | g | ----- | z | 94.00 | f | 84.00 | v | ----- | z | ----- | z | 82.00 | y | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | 77.00 | u | 72.00 | v | 87.00 | k | 96.00 | d | ----- | z | 92.00 | p | ----- | z | 97.00 | l | ----- | z | 78.00 | b | 78.00 | a | ----- | z |
2001 | 58.00 | e | 64.00 | ----- | z | 78.00 | i | 88.00 | h | 92.00 | i | 91.00 | h | 88.00 | q | 85.00 | n | 78.00 | l | 75.00 | e | 61.00 | h | ----- | z | |
2002 | 65.00 | o | 70.00 | k | 74.00 | l | 83.00 | n | 93.00 | n | 95.00 | p | 98.00 | j | 91.00 | o | 87.00 | v | 77.00 | v | 68.00 | u | 60.00 | w | ----- | z |
2003 | 66.00 | r | 67.00 | o | 73.00 | r | 76.00 | d | 89.00 | h | 91.00 | m | 100.00 | i | 94.00 | m | 88.00 | j | 87.00 | q | 75.00 | u | 70.00 | k | ----- | z |
2004 | 60.00 | v | 67.00 | v | 76.00 | q | 72.00 | k | 84.00 | b | 92.00 | c | 94.00 | c | 89.00 | e | 89.00 | m | 79.00 | q | 68.00 | r | 67.00 | o | ----- | z |
2005 | 65.00 | y | ----- | z | 69.00 | u | 77.00 | s | 93.00 | c | 94.00 | a | 95.00 | e | 88.00 | x | 87.00 | e | 81.00 | m | 83.00 | r | 65.00 | l | ----- | z |
2006 | 67.00 | s | 70.00 | e | 72.00 | f | 81.00 | d | 95.00 | d | 94.00 | b | 99.00 | g | 85.00 | i | 80.00 | e | 80.00 | d | 77.00 | o | 62.00 | r | ----- | z |
2007 | 60.00 | i | 67.00 | c | 75.00 | h | 78.00 | h | 81.00 | g | 95.00 | e | 98.00 | h | ----- | z | 85.00 | e | 80.00 | e | 74.00 | g | 70.00 | f | ----- | z |
2008 | 56.00 | m | 63.00 | o | 73.00 | b | 77.00 | b | 88.00 | c | 95.00 | e | 90.00 | f | 90.00 | h | 84.00 | s | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.32 | 63.95 | 70.09 | 77.10 | 84.77 | 92.16 | 92.48 | 87.67 | 84.69 | 77.91 | 68.82 | 62.20 | 94.11 | |||||||||||||
S.D. | 4.53 | 3.59 | 4.02 | 3.86 | 4.20 | 2.99 | 3.06 | 3.28 | 3.19 | 3.60 | 3.89 | 4.86 | 1.27 | |||||||||||||
SKEW | -0.03 | -0.09 | 0.06 | -0.96 | 0.66 | -0.09 | -0.22 | -0.01 | -0.34 | -0.05 | 0.59 | 0.95 | -0.99 | |||||||||||||
MAX | 68.00 | 73.00 | 78.00 | 84.00 | 96.00 | 99.00 | 99.00 | 94.00 | 90.00 | 85.00 | 79.00 | 78.00 | 95.00 | |||||||||||||
MIN | 50.00 | 55.00 | 61.00 | 63.00 | 77.00 | 85.00 | 85.00 | 81.00 | 77.00 | 71.00 | 61.00 | 52.00 | 92.00 | |||||||||||||
YRS | 37 | 38 | 43 | 49 | 53 | 55 | 54 | 48 | 42 | 43 | 38 | 30 | 9 |