YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 105.00 | 95.00 | 90.00 | 81.00 | 71.00 | ----- | z | |||||
1963 | 75.00 | 79.00 | 89.00 | 96.00 | 99.00 | a | 104.00 | 105.00 | 98.00 | 93.00 | 89.00 | 82.00 | 70.00 | 105.00 | a | |||||||||||
1964 | 66.00 | 73.00 | 78.00 | 89.00 | 97.00 | 101.00 | 109.00 | 102.00 | 100.00 | 90.00 | 80.00 | 73.00 | 109.00 | |||||||||||||
1965 | 74.00 | 75.00 | 80.00 | 99.00 | 97.00 | 103.00 | 104.00 | 102.00 | 98.00 | 98.00 | 82.00 | 73.00 | 104.00 | |||||||||||||
1966 | 72.00 | 75.00 | 85.00 | 88.00 | 100.00 | 101.00 | 103.00 | 105.00 | 92.00 | 90.00 | 86.00 | 74.00 | 105.00 | |||||||||||||
1967 | 78.00 | 81.00 | 92.00 | a | 94.00 | 98.00 | 104.00 | a | 104.00 | 104.00 | 99.00 | 95.00 | 80.00 | 72.00 | 104.00 | b | ||||||||||
1968 | 74.00 | 76.00 | 85.00 | 88.00 | 101.00 | a | 108.00 | 101.00 | 100.00 | 97.00 | 97.00 | 82.00 | 72.00 | 108.00 | a | |||||||||||
1969 | 77.00 | 77.00 | 90.00 | 94.00 | 103.00 | 107.00 | 106.00 | 109.00 | 95.00 | 95.00 | 80.00 | 75.00 | 109.00 | |||||||||||||
1970 | 78.00 | 77.00 | 80.00 | 88.00 | 100.00 | 107.00 | 105.00 | 102.00 | 102.00 | 87.00 | 82.00 | 79.00 | 107.00 | |||||||||||||
1971 | 77.00 | 78.00 | 90.00 | 95.00 | 98.00 | 104.00 | 105.00 | 97.00 | 100.00 | 88.00 | 84.00 | 79.00 | 105.00 | |||||||||||||
1972 | 77.00 | 87.00 | 88.00 | 94.00 | 98.00 | 105.00 | 107.00 | 100.00 | 90.00 | 93.00 | 75.00 | 70.00 | 107.00 | |||||||||||||
1973 | 70.00 | 77.00 | 77.00 | 88.00 | 98.00 | 107.00 | 104.00 | 101.00 | 97.00 | 93.00 | 87.00 | 77.00 | 107.00 | |||||||||||||
1974 | 78.00 | 81.00 | 87.00 | 96.00 | 100.00 | 105.00 | 103.00 | 100.00 | 100.00 | 87.00 | 75.00 | 70.00 | 105.00 | |||||||||||||
1975 | 75.00 | 73.00 | a | 83.00 | 87.00 | 92.00 | 101.00 | 97.00 | 98.00 | 92.00 | a | 92.00 | 82.00 | 77.00 | 101.00 | b | ||||||||||
1976 | 72.00 | 83.00 | 82.00 | 88.00 | 97.00 | 104.00 | 95.00 | 102.00 | 93.00 | 85.00 | 78.00 | 69.00 | 104.00 | |||||||||||||
1977 | 65.00 | a | 78.00 | 79.00 | 90.00 | 97.00 | 107.00 | 100.00 | 104.00 | 100.00 | 93.00 | 80.00 | 74.00 | f | 107.00 | g | ||||||||||
1978 | 72.00 | 75.00 | 86.00 | 90.00 | 97.00 | 112.00 | a | 103.00 | a | 93.00 | u | 87.00 | t | 87.00 | 76.00 | 73.00 | ----- | z | ||||||||
1979 | 63.00 | 76.00 | c | 77.00 | 95.00 | d | 93.00 | h | 105.00 | 108.00 | b | 97.00 | e | 100.00 | 96.00 | 79.00 | 72.00 | 108.00 | v | |||||||
1980 | ----- | z | 78.00 | 79.00 | ----- | z | 97.00 | 110.00 | 104.00 | 106.00 | 96.00 | ----- | z | 80.00 | 76.00 | ----- | z | |||||||||
1981 | 69.00 | 81.00 | 83.00 | a | 91.00 | a | 96.00 | 110.00 | 105.00 | 101.00 | d | 97.00 | c | 91.00 | b | 83.00 | 74.00 | a | 110.00 | l | ||||||
1982 | 71.00 | b | 82.00 | h | 87.00 | a | 87.00 | d | 97.00 | b | 103.00 | 100.00 | 97.00 | c | 98.00 | a | 90.00 | d | 78.00 | 69.00 | c | ----- | z | |||
1983 | 67.00 | 69.00 | 81.00 | a | 86.00 | a | 95.00 | a | 105.00 | a | 108.00 | a | 102.00 | 102.00 | a | 88.00 | c | 82.00 | 71.00 | b | 108.00 | k | ||||
1984 | 74.00 | a | 73.00 | 83.00 | a | 89.00 | 101.00 | a | 101.00 | 100.00 | 98.00 | 100.00 | 83.00 | 78.00 | 71.00 | 101.00 | c | |||||||||
1985 | 66.00 | 76.00 | d | 81.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 97.00 | l | 88.00 | b | 78.00 | b | 71.00 | l | ----- | z | |
1986 | ----- | z | 82.00 | b | 85.00 | a | 91.00 | d | 96.00 | d | 101.00 | d | 100.00 | d | 96.00 | e | 93.00 | l | 85.00 | a | 73.00 | c | 69.00 | b | ----- | z |
1987 | 72.00 | c | 72.00 | f | 78.00 | 92.00 | a | 90.00 | c | ----- | z | 103.00 | b | ----- | z | 91.00 | 89.00 | ----- | z | 76.00 | b | ----- | z | |||
1988 | 69.00 | a | 75.00 | a | 85.00 | 87.00 | a | ----- | z | 100.00 | c | 99.00 | b | 94.00 | j | 93.00 | a | 88.00 | b | ----- | z | 69.00 | b | ----- | z | |
1989 | ----- | z | 82.00 | 88.00 | g | ----- | z | 100.00 | b | 103.00 | e | 107.00 | 97.00 | b | 92.00 | a | 91.00 | d | 82.00 | 68.00 | b | ----- | z | |||
1990 | 73.00 | a | 77.00 | 85.00 | 91.00 | b | 99.00 | 104.00 | b | 97.00 | a | 95.00 | a | 91.00 | a | 86.00 | 79.00 | 70.00 | a | 104.00 | i | |||||
1991 | 65.00 | a | 72.00 | 81.00 | a | 86.00 | 96.00 | 101.00 | 97.00 | 96.00 | 96.00 | 89.00 | 74.00 | 71.00 | 101.00 | b | ||||||||||
1992 | 64.00 | 72.00 | a | 80.00 | a | 92.00 | c | 93.00 | 103.00 | 110.00 | 98.00 | 102.00 | a | 91.00 | a | 79.00 | 77.00 | 110.00 | g | |||||||
1993 | 69.00 | b | 72.00 | 82.00 | a | 90.00 | 96.00 | a | 100.00 | 100.00 | a | 99.00 | 94.00 | c | 92.00 | b | 76.00 | 70.00 | a | 100.00 | k | |||||
1994 | 71.00 | 75.00 | 81.00 | a | 88.00 | b | 99.00 | b | 110.00 | a | 105.00 | b | 101.00 | a | 95.00 | a | 97.00 | 79.00 | b | 69.00 | b | 110.00 | n | |||
1995 | ----- | z | 72.00 | f | 83.00 | d | 89.00 | b | 96.00 | c | 99.00 | 105.00 | a | 100.00 | a | 99.00 | b | 87.00 | a | 79.00 | b | 76.00 | ----- | z | ||
1996 | 70.00 | c | 78.00 | a | 79.00 | a | 93.00 | b | 101.00 | c | 105.00 | c | 99.00 | 98.00 | c | 94.00 | b | 89.00 | a | 80.00 | a | 74.00 | b | 105.00 | v | |
1997 | 72.00 | b | 70.00 | a | 85.00 | a | 85.00 | c | 97.00 | a | 102.00 | a | 103.00 | a | 99.00 | 98.00 | 91.00 | c | 80.00 | b | 66.00 | a | 103.00 | p | ||
1998 | 69.00 | b | 76.00 | c | 80.00 | h | 89.00 | 100.00 | 106.00 | a | 104.00 | 95.00 | c | 98.00 | a | 90.00 | b | 76.00 | 68.00 | b | 106.00 | v | ||||
1999 | 77.00 | e | 75.00 | c | 81.00 | b | 90.00 | d | 96.00 | c | 106.00 | 105.00 | 99.00 | a | 92.00 | 90.00 | a | 80.00 | 74.00 | b | 106.00 | u | ||||
2000 | 76.00 | a | 78.00 | a | 80.00 | 94.00 | c | 102.00 | a | 99.00 | a | 102.00 | 96.00 | b | 99.00 | 95.00 | a | 69.00 | a | 65.00 | c | 102.00 | n | |||
2001 | 65.00 | a | 73.00 | 82.00 | 89.00 | b | 98.00 | a | 102.00 | l | 101.00 | x | 100.00 | r | 98.00 | q | 89.00 | m | 84.00 | l | 73.00 | q | ----- | z | ||
2002 | 68.00 | o | 68.00 | l | 82.00 | h | 92.00 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.00 | b | 72.00 | f | 68.00 | a | ----- | z |
2003 | ----- | z | ----- | z | 79.00 | b | 88.00 | b | 98.00 | a | 101.00 | a | 103.00 | a | 102.00 | 100.00 | a | 89.00 | b | 88.00 | d | 71.00 | b | ----- | z | |
2004 | 68.00 | c | 76.00 | c | 84.00 | e | 84.00 | j | 98.00 | j | 102.00 | h | 103.00 | h | 98.00 | g | 94.00 | g | 80.00 | i | 80.00 | i | 70.00 | q | ----- | z |
2005 | 66.00 | m | 73.00 | l | 75.00 | k | 85.00 | b | 103.00 | 102.00 | a | 105.00 | n | 96.00 | c | 99.00 | d | 91.00 | 83.00 | a | 75.00 | g | ----- | z | ||
2006 | 72.00 | g | 75.00 | e | 84.00 | f | 95.00 | f | 99.00 | b | 103.00 | b | 101.00 | b | 97.00 | 87.00 | 89.00 | b | 78.00 | ----- | z | ----- | z | |||
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 104.00 | 99.00 | 101.00 | 94.00 | a | 89.00 | ----- | z | ----- | z | ----- | z | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 71.39 | 76.47 | 82.87 | 90.29 | 97.87 | 104.08 | 102.88 | 99.87 | 96.25 | 90.26 | 79.63 | 72.00 | 105.13 | |||||||||||||
S.D. | 4.45 | 3.74 | 3.81 | 3.39 | 2.73 | 3.18 | 3.52 | 3.28 | 3.74 | 3.41 | 3.71 | 3.45 | 2.63 | |||||||||||||
SKEW | -0.15 | 0.50 | 0.52 | 0.58 | -0.51 | 0.55 | -0.18 | 0.64 | -0.36 | 0.43 | -0.27 | 0.25 | -0.21 | |||||||||||||
MAX | 78.00 | 87.00 | 92.00 | 99.00 | 103.00 | 112.00 | 110.00 | 109.00 | 102.00 | 98.00 | 88.00 | 79.00 | 109.00 | |||||||||||||
MIN | 63.00 | 69.00 | 77.00 | 85.00 | 90.00 | 99.00 | 95.00 | 95.00 | 87.00 | 83.00 | 69.00 | 65.00 | 101.00 | |||||||||||||
YRS | 36 | 38 | 39 | 38 | 39 | 40 | 40 | 39 | 40 | 43 | 40 | 39 | 16 |