YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
1944 | 75.00 | c | 73.00 | d | 81.00 | 86.00 | e | 99.00 | e | 106.00 | e | 104.00 | e | 107.00 | d | 101.00 | d | 94.00 | c | 83.00 | d | 72.00 | 107.00 | |||
1945 | 74.00 | b | 80.00 | d | 81.00 | d | 91.00 | e | 95.00 | c | 108.00 | g | 105.00 | e | 103.00 | 105.00 | 91.00 | 87.00 | 76.00 | f | 108.00 | |||||
1946 | 79.00 | e | 80.00 | d | 84.00 | d | 92.00 | 93.00 | 104.00 | 103.00 | 103.00 | 97.00 | 89.00 | 81.00 | 80.00 | 104.00 | ||||||||||
1947 | 77.00 | 79.00 | 85.00 | 90.00 | 102.00 | 102.00 | 107.00 | 104.00 | 103.00 | 95.00 | 90.00 | 77.00 | 107.00 | |||||||||||||
1948 | 80.00 | 80.00 | 79.00 | 97.00 | 100.00 | 105.00 | 107.00 | 104.00 | 105.00 | 91.00 | 80.00 | a | 75.00 | c | 107.00 | |||||||||||
1949 | 66.00 | b | 80.00 | d | 85.00 | a | 95.00 | b | 102.00 | e | 105.00 | f | 101.00 | f | 103.00 | c | 104.00 | e | 92.00 | e | 85.00 | c | 80.00 | e | 105.00 | |
1950 | 83.00 | b | 80.00 | b | 91.00 | c | 93.00 | e | 95.00 | c | 105.00 | g | 103.00 | c | 106.00 | b | 99.00 | d | 97.00 | 85.00 | 81.00 | b | 106.00 | |||
1951 | 78.00 | b | 85.00 | a | 80.00 | b | 90.00 | 105.00 | a | 105.00 | 106.00 | c | 102.00 | c | 101.00 | e | 92.00 | d | 79.00 | c | 76.00 | e | 106.00 | |||
1952 | 76.00 | c | 74.00 | b | 77.00 | 87.00 | 96.00 | c | 104.00 | 105.00 | a | 100.00 | a | 103.00 | 92.00 | 85.00 | 71.00 | 105.00 | ||||||||
1953 | 81.00 | 81.00 | 88.00 | 91.00 | 97.00 | 107.00 | 108.00 | c | 104.00 | 100.00 | 95.00 | a | 83.00 | c | 74.00 | 108.00 | ||||||||||
1954 | 78.00 | 80.00 | 81.00 | b | 94.00 | 96.00 | 107.00 | c | 106.00 | c | 98.00 | d | 100.00 | c | 96.00 | b | 82.00 | a | 84.00 | c | 107.00 | |||||
1955 | 72.00 | c | 81.00 | b | 83.00 | c | 87.00 | c | 100.00 | a | 106.00 | d | 106.00 | a | 94.00 | a | 100.00 | a | 97.00 | 82.00 | 76.00 | 106.00 | ||||
1956 | 76.00 | a | 77.00 | a | 87.00 | 87.00 | a | 102.00 | a | 105.00 | 106.00 | a | 102.00 | 103.00 | a | 95.00 | 82.00 | a | 75.00 | a | 106.00 | |||||
1957 | 73.00 | a | 90.00 | 86.00 | a | 89.00 | a | 93.00 | 107.00 | a | 106.00 | b | 100.00 | d | 97.00 | 92.00 | e | 79.00 | a | 73.00 | a | 107.00 | ||||
1958 | 73.00 | 81.00 | a | 76.00 | 91.00 | 105.00 | 104.00 | c | 110.00 | 98.00 | a | 96.00 | 87.00 | a | 81.00 | a | 80.00 | d | 110.00 | |||||||
1959 | 78.00 | 76.00 | a | 81.00 | 93.00 | 98.00 | a | 105.00 | 102.00 | a | 98.00 | a | 100.00 | a | 94.00 | 77.00 | a | 75.00 | c | 105.00 | ||||||
1960 | 71.00 | a | 74.00 | 88.00 | 93.00 | a | 101.00 | 109.00 | 105.00 | b | 101.00 | 97.00 | d | 92.00 | 85.00 | 79.00 | 109.00 | |||||||||
1961 | 70.00 | a | 81.00 | 85.00 | 92.00 | 97.00 | a | 107.00 | 104.00 | 102.00 | 96.00 | a | 91.00 | 77.00 | 75.00 | 107.00 | ||||||||||
1962 | 71.00 | 83.00 | 86.00 | 96.00 | a | 97.00 | 107.00 | 103.00 | 106.00 | 101.00 | 94.00 | 86.00 | 73.00 | 107.00 | ||||||||||||
1963 | 78.00 | 84.00 | 87.00 | 94.00 | 98.00 | a | 104.00 | 105.00 | 96.00 | 96.00 | 94.00 | b | 82.00 | 74.00 | 105.00 | |||||||||||
1964 | 74.00 | 76.00 | 85.00 | 90.00 | a | 98.00 | 102.00 | 106.00 | 102.00 | 98.00 | 91.00 | 83.00 | 74.00 | 106.00 | ||||||||||||
1965 | 79.00 | 78.00 | 84.00 | 97.00 | 97.00 | 102.00 | 105.00 | 103.00 | 97.00 | 95.00 | 82.00 | a | 76.00 | 105.00 | ||||||||||||
1966 | 70.00 | 72.00 | 84.00 | 87.00 | 97.00 | 103.00 | 104.00 | a | 99.00 | 95.00 | 89.00 | 84.00 | 78.00 | 104.00 | ||||||||||||
1967 | 79.00 | 81.00 | 89.00 | 87.00 | 95.00 | 102.00 | 105.00 | 98.00 | 94.00 | 92.00 | 84.00 | 67.00 | 105.00 | |||||||||||||
1968 | 71.00 | 82.00 | 83.00 | a | 86.00 | 99.00 | 108.00 | 101.00 | 94.00 | 98.00 | 92.00 | 81.00 | 76.00 | a | 108.00 | |||||||||||
1969 | 78.00 | 74.00 | 90.00 | 92.00 | 101.00 | 108.00 | 106.00 | 102.00 | 98.00 | 95.00 | 78.00 | o | 78.00 | 108.00 | ||||||||||||
1970 | 78.00 | 80.00 | 78.00 | 84.00 | 99.00 | 107.00 | 105.00 | 98.00 | ----- | z | 86.00 | 83.00 | 80.00 | 107.00 | ||||||||||||
1971 | 84.00 | 79.00 | 90.00 | 91.00 | 93.00 | 104.00 | 106.00 | 96.00 | 99.00 | 87.00 | 83.00 | 76.00 | 106.00 | |||||||||||||
1972 | 76.00 | 84.00 | 90.00 | 93.00 | 95.00 | 106.00 | 105.00 | 105.00 | 95.00 | 96.00 | 78.00 | 75.00 | 106.00 | |||||||||||||
1973 | 72.00 | 78.00 | 78.00 | 88.00 | 97.00 | 111.00 | 107.00 | 100.00 | 101.00 | 94.00 | 89.00 | 80.00 | 111.00 | |||||||||||||
1974 | 80.00 | 80.00 | 86.00 | 92.00 | 103.00 | 108.00 | 102.00 | 101.00 | 101.00 | 92.00 | 80.00 | 72.00 | 108.00 | |||||||||||||
1975 | 78.00 | 79.00 | 83.00 | 88.00 | 95.00 | 104.00 | 103.00 | 102.00 | 97.00 | 93.00 | 84.00 | 77.00 | 104.00 | |||||||||||||
1976 | 78.00 | 85.00 | 84.00 | 89.00 | 96.00 | 105.00 | 103.00 | 100.00 | 94.00 | 86.00 | 80.00 | 73.00 | 105.00 | |||||||||||||
1977 | 72.00 | 82.00 | 81.00 | 91.00 | 103.00 | 105.00 | 102.00 | 101.00 | ----- | z | 95.00 | 85.00 | 78.00 | 105.00 | ||||||||||||
1978 | 73.00 | b | 75.00 | d | 85.00 | g | 91.00 | i | 98.00 | h | 107.00 | b | 106.00 | g | 98.00 | i | 95.00 | c | 93.00 | 83.00 | 73.00 | b | 107.00 | |||
1979 | 70.00 | ----- | z | 78.00 | 89.00 | 94.00 | 105.00 | 109.00 | 102.00 | 103.00 | 97.00 | 78.00 | 77.00 | 109.00 | ||||||||||||
1980 | 75.00 | 80.00 | 81.00 | 92.00 | 97.00 | 107.00 | 106.00 | b | 103.00 | 101.00 | 99.00 | 87.00 | 81.00 | 107.00 | ||||||||||||
1981 | 74.00 | 83.00 | 81.00 | 91.00 | 92.00 | 106.00 | 105.00 | 101.00 | 98.00 | 87.00 | 85.00 | 79.00 | 106.00 | |||||||||||||
1982 | 80.00 | 82.00 | 82.00 | 89.00 | 96.00 | 104.00 | 104.00 | 99.00 | 102.00 | 91.00 | 81.00 | 75.00 | 104.00 | |||||||||||||
1983 | 73.00 | 77.00 | 80.00 | 88.00 | 99.00 | 101.00 | 103.00 | 100.00 | 103.00 | 89.00 | 80.00 | 74.00 | 103.00 | |||||||||||||
1984 | 70.00 | 74.00 | 80.00 | 89.00 | 103.00 | 100.00 | 100.00 | 100.00 | 97.00 | 85.00 | 85.00 | 73.00 | 103.00 | |||||||||||||
1985 | 69.00 | 78.00 | 85.00 | 96.00 | 95.00 | 107.00 | 106.00 | 102.00 | 101.00 | 92.00 | 82.00 | 73.00 | 107.00 | |||||||||||||
1986 | 80.00 | 86.00 | 87.00 | 91.00 | 97.00 | 102.00 | 106.00 | 105.00 | 97.00 | 88.00 | 84.00 | 73.00 | 106.00 | |||||||||||||
1987 | 80.00 | 78.00 | 80.00 | 91.00 | 88.00 | 102.00 | 104.00 | 98.00 | 96.00 | 93.00 | 80.00 | 80.00 | 104.00 | |||||||||||||
1988 | 72.00 | 80.00 | 90.00 | 89.00 | 96.00 | 102.00 | 100.00 | 99.00 | 98.00 | 91.00 | 87.00 | 76.00 | 102.00 | |||||||||||||
1989 | 70.00 | 83.00 | 93.00 | 98.00 | 101.00 | 108.00 | 108.00 | 98.00 | 97.00 | 92.00 | 82.00 | 74.00 | 108.00 | |||||||||||||
1990 | 76.00 | 81.00 | 87.00 | 91.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.00 | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 75.32 | 79.70 | 83.91 | 90.80 | 97.71 | 105.12 | 104.82 | 100.87 | 99.07 | 92.17 | 82.69 | 75.96 | 105.81 | |||||||||||||
S.D. | 4.10 | 3.68 | 4.12 | 3.19 | 3.58 | 2.40 | 2.17 | 3.02 | 3.01 | 3.25 | 2.98 | 3.27 | 1.96 | |||||||||||||
SKEW | -0.05 | 0.09 | 0.14 | 0.29 | -0.01 | 0.00 | -0.13 | -0.22 | 0.22 | -0.32 | 0.19 | 0.05 | 0.28 | |||||||||||||
MAX | 84.00 | 90.00 | 93.00 | 98.00 | 105.00 | 111.00 | 110.00 | 107.00 | 105.00 | 99.00 | 90.00 | 84.00 | 111.00 | |||||||||||||
MIN | 66.00 | 72.00 | 76.00 | 84.00 | 88.00 | 100.00 | 100.00 | 94.00 | 94.00 | 85.00 | 77.00 | 67.00 | 102.00 | |||||||||||||
NO YRS | 47 | 46 | 46 | 46 | 45 | 43 | 44 | 45 | 44 | 46 | 45 | 45 | 26 |