YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 100.00 | e | 103.00 | 98.00 | 92.00 | f | 78.00 | g | 72.00 | l | ----- | z | ||
1963 | 80.00 | 78.00 | 92.00 | 95.00 | 102.00 | 99.00 | 101.00 | 100.00 | 100.00 | 92.00 | 86.00 | a | 68.00 | 102.00 | a | |||||||||||
1964 | 75.00 | 75.00 | 81.00 | 96.00 | 98.00 | 102.00 | 104.00 | 103.00 | 99.00 | 90.00 | 82.00 | 75.00 | f | 104.00 | f | |||||||||||
1965 | 78.00 | 77.00 | 81.00 | 98.00 | 94.00 | 100.00 | 101.00 | 99.00 | 99.00 | 92.00 | 87.00 | 74.00 | 101.00 | |||||||||||||
1966 | 62.00 | l | 73.00 | 88.00 | 92.00 | 96.00 | 99.00 | 103.00 | 101.00 | 94.00 | 88.00 | 84.00 | a | 82.00 | 103.00 | m | ||||||||||
1967 | 80.00 | 78.00 | 94.00 | 93.00 | 102.00 | 97.00 | 101.00 | 100.00 | 93.00 | 89.00 | 84.00 | 78.00 | 102.00 | |||||||||||||
1968 | 75.00 | 77.00 | 82.00 | 89.00 | 99.00 | 101.00 | 95.00 | 99.00 | 97.00 | 93.00 | 79.00 | a | 74.00 | 101.00 | a | |||||||||||
1969 | 85.00 | 75.00 | 84.00 | 88.00 | 102.00 | 108.00 | 102.00 | 104.00 | 95.00 | 93.00 | 84.00 | 75.00 | 108.00 | |||||||||||||
1970 | 82.00 | 82.00 | 82.00 | 92.00 | 95.00 | 102.00 | 102.00 | 100.00 | 95.00 | 88.00 | 83.00 | 80.00 | 102.00 | |||||||||||||
1971 | 80.00 | 83.00 | 96.00 | 94.00 | 97.00 | 98.00 | 103.00 | 94.00 | 97.00 | 84.00 | 81.00 | 77.00 | 103.00 | |||||||||||||
1972 | 83.00 | 87.00 | 90.00 | 99.00 | 92.00 | 105.00 | 104.00 | 99.00 | 93.00 | 93.00 | 79.00 | 80.00 | 105.00 | |||||||||||||
1973 | 73.00 | 78.00 | 80.00 | 88.00 | 102.00 | 100.00 | 99.00 | 101.00 | 96.00 | 93.00 | 90.00 | 79.00 | 102.00 | |||||||||||||
1974 | 84.00 | 85.00 | 93.00 | 92.00 | 100.00 | 102.00 | 104.00 | 98.00 | 95.00 | 85.00 | 78.00 | 79.00 | 104.00 | |||||||||||||
1975 | 84.00 | 79.00 | 87.00 | 95.00 | 96.00 | 106.00 | 100.00 | 98.00 | 95.00 | 91.00 | 85.00 | 80.00 | 106.00 | |||||||||||||
1976 | 75.00 | 86.00 | 90.00 | 91.00 | 101.00 | 99.00 | 96.00 | 99.00 | 90.00 | 89.00 | 77.00 | 71.00 | 101.00 | |||||||||||||
1977 | 70.00 | 83.00 | 88.00 | 88.00 | 99.00 | a | 103.00 | 102.00 | 105.00 | 106.00 | 94.00 | 83.00 | 82.00 | 106.00 | a | |||||||||||
1978 | 75.00 | 81.00 | a | 88.00 | b | 96.00 | 102.00 | 102.00 | 106.00 | 103.00 | 98.00 | 90.00 | a | 82.00 | a | 79.00 | a | 106.00 | f | |||||||
1979 | 70.00 | 86.00 | 85.00 | 94.00 | 98.00 | 99.00 | 102.00 | 99.00 | 99.00 | b | 101.00 | 81.00 | 81.00 | b | 102.00 | d | ||||||||||
1980 | 80.00 | a | 86.00 | a | 82.00 | 91.00 | 98.00 | 109.00 | 108.00 | 102.00 | 98.00 | a | 90.00 | 87.00 | 78.00 | 109.00 | c | |||||||||
1981 | 76.00 | a | 81.00 | 79.00 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 98.00 | 89.00 | a | 88.00 | c | 85.00 | g | ----- | z | ||
1982 | 80.00 | a | 84.00 | 92.00 | 97.00 | c | 99.00 | a | 101.00 | 102.00 | e | 102.00 | 99.00 | e | 94.00 | i | 81.00 | q | 75.00 | o | ----- | z | ||||
1983 | 71.00 | c | 79.00 | 80.00 | d | 93.00 | h | 98.00 | g | 103.00 | a | 103.00 | d | 103.00 | f | 102.00 | a | 95.00 | d | 82.00 | 80.00 | c | ----- | z | ||
1984 | 75.00 | 80.00 | f | 86.00 | b | 94.00 | k | 103.00 | 99.00 | h | 100.00 | l | 95.00 | w | 98.00 | f | 84.00 | i | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 77.67 | 80.62 | 86.71 | 93.05 | 98.75 | 101.75 | 101.81 | 100.45 | 97.09 | 90.95 | 83.10 | 77.61 | 103.60 | |||||||||||||
S.D. | 4.64 | 4.15 | 4.97 | 3.39 | 3.08 | 3.23 | 2.93 | 2.54 | 3.39 | 3.71 | 3.45 | 3.82 | 2.61 | |||||||||||||
SKEW | -0.10 | -0.05 | 0.20 | -0.02 | -0.47 | 0.78 | -0.41 | -0.38 | 0.40 | 0.56 | 0.10 | -1.10 | 0.83 | |||||||||||||
MAX | 85.00 | 87.00 | 96.00 | 99.00 | 103.00 | 109.00 | 108.00 | 105.00 | 106.00 | 101.00 | 90.00 | 82.00 | 109.00 | |||||||||||||
MIN | 70.00 | 73.00 | 80.00 | 88.00 | 92.00 | 97.00 | 95.00 | 94.00 | 90.00 | 84.00 | 77.00 | 68.00 | 101.00 | |||||||||||||
YRS | 21 | 21 | 21 | 19 | 20 | 20 | 21 | 20 | 22 | 20 | 20 | 18 | 15 |