YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 84.00 | w | 92.00 | 90.00 | 99.00 | 96.00 | 95.00 | 89.00 | 87.00 | 79.00 | 69.00 | ----- | z | |||||||||
1951 | 70.00 | 77.00 | 77.00 | a | 88.00 | 92.00 | 102.00 | 102.00 | 100.00 | a | 100.00 | 89.00 | 72.00 | b | 70.00 | 102.00 | d | |||||||||
1952 | 72.00 | 68.00 | 74.00 | 85.00 | 95.00 | 102.00 | 98.00 | 99.00 | 92.00 | 85.00 | 78.00 | 66.00 | 102.00 | |||||||||||||
1953 | 72.00 | 72.00 | 80.00 | 88.00 | a | 97.00 | 104.00 | 102.00 | 99.00 | 95.00 | 90.00 | 73.00 | a | 63.00 | j | 104.00 | l | |||||||||
1954 | 67.00 | 75.00 | b | 80.00 | c | 88.00 | a | 90.00 | 99.00 | 100.00 | 98.00 | 95.00 | 91.00 | 76.00 | 72.00 | 100.00 | f | |||||||||
1955 | 64.00 | 69.00 | 79.00 | a | 85.00 | b | 90.00 | c | 98.00 | a | 98.00 | 95.00 | 94.00 | a | 85.00 | 76.00 | 74.00 | 98.00 | h | |||||||
1956 | 70.00 | 75.00 | 82.00 | 88.00 | 97.00 | 99.00 | 100.00 | a | 99.00 | 98.00 | 89.00 | 78.00 | a | 75.00 | a | 100.00 | c | |||||||||
1957 | 70.00 | 78.00 | 71.00 | a | 83.00 | 85.00 | 106.00 | k | 105.00 | 96.00 | d | 92.00 | 87.00 | 69.00 | 68.00 | c | 106.00 | s | ||||||||
1958 | 66.00 | 70.00 | 73.00 | 83.00 | a | 90.00 | 98.00 | 105.00 | g | 99.00 | g | 97.00 | 86.00 | 77.00 | 75.00 | 105.00 | o | |||||||||
1959 | 68.00 | 72.00 | 76.00 | a | 88.00 | a | 93.00 | 95.00 | f | 95.00 | 100.00 | 97.00 | 91.00 | a | 73.00 | a | 66.00 | 100.00 | j | |||||||
1960 | 61.00 | 57.00 | b | 80.00 | a | 87.00 | a | 95.00 | a | 100.00 | 95.00 | c | 94.00 | 92.00 | 85.00 | 78.00 | a | 62.00 | 100.00 | i | ||||||
1961 | 64.00 | 77.00 | 79.00 | 86.00 | 92.00 | a | 96.00 | 94.00 | 95.00 | 89.00 | 85.00 | 71.00 | 69.00 | 96.00 | a | |||||||||||
1962 | 67.00 | 80.00 | 80.00 | 89.00 | a | 95.00 | 98.00 | 100.00 | 99.00 | 95.00 | 89.00 | 77.00 | b | 71.00 | 100.00 | c | ||||||||||
1963 | 71.00 | 77.00 | 87.00 | a | 85.00 | a | 94.00 | 94.00 | a | 100.00 | d | 94.00 | 91.00 | 90.00 | 78.00 | 72.00 | 100.00 | g | ||||||||
1964 | 69.00 | 60.00 | 80.00 | 85.00 | a | 96.00 | a | 99.00 | 103.00 | 102.00 | e | 95.00 | 88.00 | 78.00 | 74.00 | 103.00 | g | |||||||||
1965 | 71.00 | 74.00 | 75.00 | 95.00 | a | 89.00 | 94.00 | 98.00 | 96.00 | 92.00 | a | 92.00 | 79.00 | 73.00 | 98.00 | b | ||||||||||
1966 | 61.00 | 66.00 | 83.00 | a | 85.00 | 94.00 | 97.00 | 101.00 | c | 93.00 | 90.00 | 84.00 | 79.00 | a | 72.00 | 101.00 | e | |||||||||
1967 | 74.00 | 71.00 | 83.00 | 85.00 | 94.00 | 93.00 | 97.00 | 94.00 | 91.00 | 90.00 | 80.00 | 64.00 | a | 97.00 | a | |||||||||||
1968 | 69.00 | 70.00 | a | 78.00 | 80.00 | l | 95.00 | 106.00 | 97.00 | 95.00 | 91.00 | 88.00 | 75.00 | 71.00 | a | 106.00 | n | |||||||||
1969 | 71.00 | a | 69.00 | b | 74.00 | 85.00 | a | 91.00 | 100.00 | 101.00 | 103.00 | 89.00 | 86.00 | 72.00 | 67.00 | 103.00 | d | |||||||||
1970 | 74.00 | 77.00 | a | 75.00 | 80.00 | 93.00 | 101.00 | 96.00 | 98.00 | 94.00 | 82.00 | 75.00 | 73.00 | 101.00 | a | |||||||||||
1971 | 74.00 | b | 73.00 | 86.00 | 87.00 | 92.00 | 95.00 | 100.00 | a | 93.00 | b | 93.00 | 83.00 | 78.00 | 72.00 | 100.00 | e | |||||||||
1972 | 74.00 | a | 78.00 | d | 82.00 | 90.00 | c | 90.00 | 97.00 | 95.00 | 92.00 | 86.00 | 86.00 | 68.00 | 68.00 | 97.00 | h | |||||||||
1973 | 62.00 | 65.00 | 72.00 | j | 80.00 | 88.00 | 99.00 | 101.00 | 98.00 | b | 91.00 | 88.00 | 82.00 | c | 71.00 | 101.00 | o | |||||||||
1974 | 77.00 | b | 72.00 | 83.00 | 88.00 | 96.00 | 100.00 | 100.00 | 97.00 | b | 95.00 | 81.00 | 70.00 | 64.00 | 100.00 | d | ||||||||||
1975 | 73.00 | 69.00 | 76.00 | 84.00 | 82.00 | l | 99.00 | k | 92.00 | f | 96.00 | 90.00 | b | 87.00 | 80.00 | 74.00 | ----- | z | ||||||||
1976 | 69.00 | 75.00 | 80.00 | 85.00 | 90.00 | a | 100.00 | 93.00 | 95.00 | 91.00 | a | 83.00 | 73.00 | 69.00 | 100.00 | b | ||||||||||
1977 | 56.00 | 73.00 | 75.00 | 84.00 | 93.00 | 102.00 | 98.00 | 100.00 | a | 92.00 | 82.00 | 78.00 | 73.00 | 102.00 | a | |||||||||||
1978 | 61.00 | 64.00 | 83.00 | 87.00 | 91.00 | 102.00 | 103.00 | 99.00 | a | 94.00 | 86.00 | 78.00 | 65.00 | 103.00 | a | |||||||||||
1979 | 58.00 | 78.00 | 75.00 | a | 84.00 | m | 89.00 | f | 96.00 | 99.00 | 94.00 | 93.00 | 92.00 | a | 67.00 | 68.00 | 99.00 | u | ||||||||
1980 | 70.00 | 74.00 | b | 73.00 | 84.00 | 89.00 | 104.00 | 101.00 | 99.00 | 90.00 | 84.00 | 84.00 | 74.00 | a | 104.00 | c | ||||||||||
1981 | 71.00 | 77.00 | 78.00 | a | 87.00 | ----- | z | 105.00 | t | 101.00 | 97.00 | 88.00 | 78.00 | 78.00 | 70.00 | g | ----- | z | ||||||||
1982 | 67.00 | 77.00 | 81.00 | 85.00 | 90.00 | a | 96.00 | 98.00 | a | 98.00 | 90.00 | e | 83.00 | 72.00 | 65.00 | b | 98.00 | i | ||||||||
1983 | 66.00 | a | 65.00 | 78.00 | 81.00 | 87.00 | 98.00 | a | 98.00 | 94.00 | 98.00 | 85.00 | a | 73.00 | f | 65.00 | d | 98.00 | m | |||||||
1984 | 69.00 | b | 70.00 | 74.00 | a | 82.00 | 97.00 | h | 93.00 | 94.00 | 95.00 | a | 95.00 | 82.00 | 74.00 | 72.00 | b | 97.00 | n | |||||||
1985 | 60.00 | a | 66.00 | 74.00 | 80.00 | 89.00 | 97.00 | 98.00 | 96.00 | 92.00 | a | 83.00 | b | 79.00 | 65.00 | a | 98.00 | e | ||||||||
1986 | 74.00 | a | 76.00 | a | 81.00 | 86.00 | 91.00 | 93.00 | 99.00 | 99.00 | d | 87.00 | a | 82.00 | 72.00 | 56.00 | a | 99.00 | h | |||||||
1987 | 64.00 | 70.00 | 72.00 | 87.00 | 84.00 | a | 96.00 | 97.00 | 95.00 | 85.00 | a | 87.00 | 74.00 | 73.00 | 97.00 | b | ||||||||||
1988 | 65.00 | 70.00 | a | 79.00 | 81.00 | a | 92.00 | a | 92.00 | 93.00 | 94.00 | 88.00 | 86.00 | 78.00 | 63.00 | e | 94.00 | h | ||||||||
1989 | 69.00 | a | 79.00 | 88.00 | 93.00 | 96.00 | 95.00 | 99.00 | 96.00 | d | 88.00 | j | 87.00 | b | 75.00 | b | 69.00 | 99.00 | s | |||||||
1990 | 64.00 | e | 72.00 | b | 77.00 | 84.00 | g | 92.00 | 106.00 | 94.00 | a | 98.00 | 91.00 | 82.00 | b | 76.00 | l | 69.00 | a | ----- | z | |||||
1991 | 60.00 | a | 68.00 | 77.00 | a | 84.00 | 92.00 | c | 99.00 | 96.00 | a | 89.00 | a | 87.00 | a | 86.00 | a | 72.00 | 64.00 | a | 99.00 | j | ||||
1992 | 66.00 | 71.00 | 75.00 | a | 87.00 | 89.00 | a | 97.00 | b | 103.00 | c | 95.00 | b | 91.00 | 87.00 | b | 72.00 | a | 66.00 | a | 103.00 | m | ||||
1993 | 64.00 | 67.00 | a | 74.00 | d | 86.00 | a | 88.00 | a | 98.00 | 102.00 | 92.00 | d | 90.00 | c | 86.00 | b | 70.00 | 69.00 | 102.00 | p | |||||
1994 | 69.00 | a | 72.00 | 79.00 | 86.00 | 91.00 | e | 104.00 | h | 99.00 | 99.00 | d | 93.00 | 84.00 | 80.00 | 67.00 | 104.00 | r | ||||||||
1995 | 67.00 | 75.00 | 84.00 | 84.00 | 92.00 | 100.00 | 104.00 | 96.00 | 99.00 | 84.00 | 77.00 | c | 70.00 | e | 104.00 | h | ||||||||||
1996 | 69.00 | 77.00 | 78.00 | 92.00 | 98.00 | 102.00 | b | 97.00 | b | 96.00 | 87.00 | a | 86.00 | b | 79.00 | 71.00 | 102.00 | g | ||||||||
1997 | 72.00 | 70.00 | 82.00 | d | 81.00 | a | 88.00 | b | 98.00 | 100.00 | 95.00 | j | 96.00 | 89.00 | b | 74.00 | 66.00 | b | 100.00 | u | ||||||
1998 | 67.00 | a | 74.00 | 82.00 | a | 85.00 | e | 102.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 67.67 | 71.90 | 78.55 | 85.78 | 91.93 | 98.47 | 98.70 | 96.43 | 92.13 | 86.00 | 75.59 | 68.93 | 100.33 | |||||||||||||
S.D. | 4.72 | 5.00 | 4.03 | 3.34 | 3.50 | 3.40 | 3.00 | 2.79 | 3.51 | 3.09 | 3.82 | 4.05 | 2.44 | |||||||||||||
SKEW | -0.42 | -0.72 | 0.26 | 0.47 | 0.30 | 0.22 | -0.07 | -0.03 | 0.20 | -0.07 | -0.27 | -0.68 | -0.34 | |||||||||||||
MAX | 77.00 | 80.00 | 88.00 | 95.00 | 102.00 | 106.00 | 105.00 | 103.00 | 100.00 | 92.00 | 84.00 | 75.00 | 104.00 | |||||||||||||
MIN | 56.00 | 57.00 | 71.00 | 80.00 | 84.00 | 92.00 | 93.00 | 89.00 | 85.00 | 78.00 | 67.00 | 56.00 | 96.00 | |||||||||||||
YRS | 48 | 48 | 47 | 46 | 45 | 43 | 46 | 46 | 47 | 48 | 46 | 46 | 15 |