YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 75.00 | 66.00 | b | 75.00 | a | 70.00 | 82.00 | 93.00 | 96.00 | 97.00 | 87.00 | 82.00 | 72.00 | 71.00 | 97.00 | c | ||||||||||
1894 | 59.00 | a | 64.00 | i | 72.00 | a | 80.00 | 85.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 102.00 | 98.00 | 95.00 | 94.00 | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1919 | 66.00 | 61.00 | 70.00 | ----- | 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 | 66.00 | ----- | z | ----- | z | 88.00 | 88.00 | 101.00 | 98.00 | 98.00 | 93.00 | 85.00 | 76.00 | 66.00 | ----- | z | ||||||||||
1927 | 66.00 | 62.00 | 75.00 | 83.00 | 93.00 | b | 93.00 | 96.00 | 94.00 | 90.00 | 85.00 | 76.00 | 75.00 | 96.00 | b | |||||||||||
1928 | 66.00 | 65.00 | 78.00 | 81.00 | 94.00 | 97.00 | 101.00 | 98.00 | 94.00 | 85.00 | 74.00 | 56.00 | 101.00 | |||||||||||||
1929 | ----- | z | 64.00 | 75.00 | 72.00 | a | 88.00 | 99.00 | 94.00 | 98.00 | 91.00 | 85.00 | 74.00 | 70.00 | ----- | z | ||||||||||
1930 | 64.00 | 73.00 | 76.00 | 84.00 | 81.00 | 98.00 | 101.00 | 94.00 | 91.00 | 83.00 | 79.00 | 68.00 | 101.00 | |||||||||||||
1931 | 71.00 | 62.00 | 78.00 | 83.00 | 90.00 | 92.00 | 102.00 | 99.00 | 91.00 | 78.00 | 78.00 | a | 61.00 | a | 102.00 | b | ||||||||||
1932 | 62.00 | 70.00 | 72.00 | a | 77.00 | 83.00 | 97.00 | 95.00 | 98.00 | 98.00 | 81.00 | 85.00 | 65.00 | 98.00 | a | |||||||||||
1933 | 67.00 | 66.00 | 71.00 | 78.00 | 97.00 | 97.00 | 103.00 | 104.00 | 90.00 | 88.00 | 75.00 | 74.00 | 104.00 | |||||||||||||
1934 | 67.00 | 68.00 | 80.00 | ----- | z | 91.00 | 97.00 | 105.00 | 96.00 | 92.00 | 86.00 | 75.00 | 64.00 | ----- | z | |||||||||||
1935 | 67.00 | a | 69.00 | 67.00 | 75.00 | 86.00 | a | 93.00 | 99.00 | 98.00 | 92.00 | 82.00 | 68.00 | 67.00 | 99.00 | b | ||||||||||
1936 | 68.00 | 68.00 | 75.00 | a | 84.00 | ----- | z | ----- | z | ----- | z | ----- | z | 96.00 | 86.00 | a | 77.00 | 67.00 | ----- | 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 | 72.00 | j | 63.00 | 66.00 | 81.00 | 79.00 | 96.00 | 99.00 | 95.00 | 98.00 | 86.00 | 76.00 | 62.00 | 99.00 | j | |||||||||||
1946 | 67.00 | 67.00 | 70.00 | 83.00 | 80.00 | j | 104.00 | 96.00 | j | 98.00 | 74.00 | b | 81.00 | 71.00 | 65.00 | 104.00 | v | |||||||||
1947 | 66.00 | 73.00 | 74.00 | 82.00 | 91.00 | a | 93.00 | 100.00 | a | 98.00 | a | 100.00 | 93.00 | a | 71.00 | 68.00 | 100.00 | d | ||||||||
1948 | 76.00 | 68.00 | 66.00 | 79.00 | 91.00 | 99.00 | 99.00 | a | 96.00 | 98.00 | 90.00 | 71.00 | 67.00 | 99.00 | a | |||||||||||
1949 | 49.00 | 63.00 | 71.00 | 84.00 | 86.00 | 93.00 | 96.00 | 93.00 | 97.00 | 87.00 | 81.00 | 74.00 | 97.00 | |||||||||||||
1950 | 64.00 | 73.00 | 76.00 | a | 89.00 | 94.00 | 102.00 | 101.00 | 104.00 | 102.00 | 92.00 | 78.00 | 74.00 | 104.00 | a | |||||||||||
1951 | 69.00 | 78.00 | 74.00 | 84.00 | b | 93.00 | 93.00 | b | 100.00 | 98.00 | 100.00 | 86.00 | 77.00 | 67.00 | 100.00 | d | ||||||||||
1952 | 61.00 | 65.00 | 73.00 | 80.00 | 92.00 | 93.00 | 97.00 | 96.00 | 93.00 | g | 91.00 | 71.00 | 68.00 | 97.00 | g | |||||||||||
1953 | 70.00 | 68.00 | 77.00 | a | 77.00 | 78.00 | 82.00 | i | 95.00 | l | 97.00 | h | 96.00 | 86.00 | 72.00 | 69.00 | ----- | z | ||||||||
1954 | 69.00 | 78.00 | 72.00 | 88.00 | 89.00 | 98.00 | 97.00 | 93.00 | 92.00 | 86.00 | 73.00 | 64.00 | 98.00 | |||||||||||||
1955 | 58.00 | 67.00 | 78.00 | 74.00 | 89.00 | 97.00 | 101.00 | 100.00 | 101.00 | 87.00 | 80.00 | 69.00 | 101.00 | |||||||||||||
1956 | 70.00 | 66.00 | 81.00 | 80.00 | 88.00 | 96.00 | 97.00 | 90.00 | 91.00 | 85.00 | 81.00 | 72.00 | 97.00 | |||||||||||||
1957 | 61.00 | 73.00 | 73.00 | 77.00 | 86.00 | 97.00 | 97.00 | 95.00 | 98.00 | 79.00 | a | 73.00 | 69.00 | 98.00 | a | |||||||||||
1958 | 66.00 | 73.00 | 64.00 | 71.00 | 90.00 | 89.00 | 96.00 | 97.00 | 92.00 | 89.00 | 78.00 | 81.00 | 97.00 | |||||||||||||
1959 | 70.00 | 68.00 | 72.00 | 89.00 | f | 89.00 | 96.00 | b | 100.00 | 97.00 | g | 94.00 | 89.00 | 78.00 | 70.00 | 100.00 | o | |||||||||
1960 | 60.00 | 63.00 | 78.00 | 83.00 | 85.00 | 95.00 | 99.00 | 98.00 | 93.00 | 83.00 | 72.00 | 67.00 | 99.00 | |||||||||||||
1961 | 70.00 | 68.00 | 70.00 | 87.00 | a | 80.00 | c | 100.00 | 99.00 | a | 95.00 | 90.00 | 85.00 | 70.00 | a | 67.00 | b | 100.00 | h | |||||||
1962 | 73.00 | 71.00 | 73.00 | 86.00 | 82.00 | 90.00 | 92.00 | 102.00 | 92.00 | 87.00 | a | 77.00 | 70.00 | 102.00 | a | |||||||||||
1963 | 62.00 | 76.00 | a | 72.00 | 76.00 | 87.00 | 86.00 | 89.00 | 90.00 | 91.00 | 88.00 | 71.00 | 69.00 | 91.00 | a | |||||||||||
1964 | 73.00 | 68.00 | 74.00 | 80.00 | 80.00 | e | 94.00 | 93.00 | 91.00 | 86.00 | 89.00 | 68.00 | 60.00 | 94.00 | e | |||||||||||
1965 | 67.00 | 78.00 | 69.00 | b | 84.00 | a | 85.00 | 84.00 | b | 90.00 | 95.00 | 88.00 | b | 90.00 | 83.00 | a | 69.00 | 95.00 | h | |||||||
1966 | 63.00 | 66.00 | 81.00 | a | 81.00 | 87.00 | a | 94.00 | 92.00 | 96.00 | 91.00 | a | 82.00 | 79.00 | 64.00 | 96.00 | c | |||||||||
1967 | 68.00 | 73.00 | 73.00 | 63.00 | 93.00 | 96.00 | a | 93.00 | 97.00 | 86.00 | 86.00 | 81.00 | 64.00 | 97.00 | a | |||||||||||
1968 | 71.00 | a | 74.00 | 77.00 | a | 80.00 | ----- | z | ----- | z | 94.00 | v | 94.00 | m | 93.00 | b | 79.00 | 73.00 | a | 64.00 | ----- | z | ||||
1969 | 72.00 | 57.00 | 76.00 | 81.00 | 87.00 | 89.00 | b | 93.00 | a | 95.00 | 92.00 | 75.00 | 73.00 | 66.00 | 95.00 | c | ||||||||||
1970 | 66.00 | 70.00 | c | 74.00 | a | 75.00 | a | 92.00 | a | 99.00 | 100.00 | a | 97.00 | a | 94.00 | 85.00 | 72.00 | a | 60.00 | 100.00 | i | |||||
1971 | 74.00 | 76.00 | 80.00 | 78.00 | 81.00 | a | 87.00 | 95.00 | 100.00 | 101.00 | 88.00 | 74.00 | 55.00 | 101.00 | a | |||||||||||
1972 | 62.00 | 76.00 | 81.00 | 79.00 | 89.00 | a | 98.00 | b | 100.00 | 95.00 | a | 90.00 | 80.00 | 70.00 | 67.00 | 100.00 | d | |||||||||
1973 | 65.00 | a | 61.00 | 62.00 | a | 80.00 | 93.00 | 96.00 | b | 98.00 | 94.00 | 88.00 | 83.00 | 71.00 | 62.00 | 98.00 | d | |||||||||
1974 | 69.00 | a | 63.00 | 73.00 | 76.00 | 94.00 | 94.00 | a | 96.00 | 94.00 | a | 92.00 | 87.00 | a | 76.00 | 62.00 | 96.00 | d | ||||||||
1975 | 71.00 | 73.00 | 69.00 | 69.00 | 88.00 | 94.00 | 100.00 | 98.00 | b | 96.00 | a | 86.00 | 76.00 | 69.00 | 100.00 | c | ||||||||||
1976 | 69.00 | e | 67.00 | 73.00 | 84.00 | 95.00 | 100.00 | 95.00 | 99.00 | 95.00 | 84.00 | 78.00 | 66.00 | 100.00 | e | |||||||||||
1977 | 62.00 | 76.00 | a | 71.00 | 82.00 | 92.00 | 96.00 | a | 97.00 | a | 97.00 | 95.00 | 89.00 | 76.00 | 68.00 | 97.00 | c | |||||||||
1978 | 63.00 | 66.00 | 76.00 | a | 75.00 | c | 86.00 | 91.00 | 100.00 | 100.00 | a | 92.00 | 89.00 | 78.00 | 62.00 | 100.00 | e | |||||||||
1979 | 54.00 | 70.00 | 74.00 | a | 74.00 | 88.00 | 97.00 | 100.00 | 95.00 | 98.00 | 86.00 | 71.00 | 72.00 | 100.00 | a | |||||||||||
1980 | 68.00 | 67.00 | 66.00 | 85.00 | 86.00 | a | 95.00 | 103.00 | 95.00 | b | 92.00 | 96.00 | 80.00 | 70.00 | a | 103.00 | d | |||||||||
1981 | 69.00 | a | 72.00 | 69.00 | 89.00 | a | 89.00 | 97.00 | 95.00 | 99.00 | a | 93.00 | 79.00 | 74.00 | 67.00 | n | 99.00 | q | ||||||||
1982 | 65.00 | l | 62.00 | g | 69.00 | e | 75.00 | c | ----- | z | 88.00 | c | 93.00 | a | 95.00 | 95.00 | e | 77.00 | f | 68.00 | 65.00 | f | ----- | z | ||
1983 | 68.00 | a | 67.00 | d | 70.00 | e | 69.00 | a | 92.00 | a | 87.00 | d | 94.00 | e | 94.00 | b | 94.00 | b | 80.00 | c | 72.00 | d | 66.00 | b | ----- | z |
1984 | 68.00 | 69.00 | c | 74.00 | b | 82.00 | g | 95.00 | g | 90.00 | g | 96.00 | d | 95.00 | c | 95.00 | g | 81.00 | d | 74.00 | e | 56.00 | c | ----- | z | |
1985 | 66.00 | b | 72.00 | b | 70.00 | e | 86.00 | d | 82.00 | g | 96.00 | g | 94.00 | e | 90.00 | 86.00 | f | 86.00 | d | 75.00 | e | 69.00 | a | ----- | z | |
1986 | 71.00 | d | 76.00 | a | 76.00 | c | 82.00 | f | 89.00 | g | 94.00 | d | 94.00 | b | 94.00 | 92.00 | d | 79.00 | d | 73.00 | c | 68.00 | b | ----- | z | |
1987 | 66.00 | f | 66.00 | c | 68.00 | f | 85.00 | d | 87.00 | f | 94.00 | e | 97.00 | b | 93.00 | a | 91.00 | c | 89.00 | f | 67.00 | d | 59.00 | d | ----- | z |
1988 | 62.00 | c | 67.00 | d | 77.00 | c | 79.00 | f | 87.00 | d | 91.00 | f | 98.00 | d | 95.00 | b | 97.00 | 87.00 | b | 77.00 | a | 67.00 | c | ----- | z | |
1989 | 63.00 | c | 71.00 | c | 71.00 | d | 83.00 | c | 83.00 | f | 88.00 | c | 92.00 | c | 88.00 | c | 87.00 | b | 82.00 | a | 74.00 | a | 71.00 | b | ----- | z |
1990 | 72.00 | c | 69.00 | c | 70.00 | b | 80.00 | d | 82.00 | b | 94.00 | a | 92.00 | a | 98.00 | e | 91.00 | c | 83.00 | c | 74.00 | h | 65.00 | ----- | z | |
1991 | 59.00 | a | 69.00 | d | 61.00 | d | 72.00 | d | 77.00 | c | 87.00 | 95.00 | a | 92.00 | e | 90.00 | b | 87.00 | c | 77.00 | a | 65.00 | b | ----- | z | |
1992 | 64.00 | a | 65.00 | a | 65.00 | a | 79.00 | a | 84.00 | b | 88.00 | f | 90.00 | a | 96.00 | c | 88.00 | 86.00 | f | 66.00 | c | 60.00 | c | ----- | z | |
1993 | 62.00 | c | 58.00 | 72.00 | c | 78.00 | d | 81.00 | d | 92.00 | a | 88.00 | a | 92.00 | a | 93.00 | d | 87.00 | a | 68.00 | b | 58.00 | a | 93.00 | y | |
1994 | 71.00 | a | 64.00 | c | 72.00 | a | 79.00 | b | 80.00 | c | 92.00 | a | 94.00 | c | ----- | z | 88.00 | a | 78.00 | a | 70.00 | a | 62.00 | b | ----- | z |
1995 | 62.00 | 70.00 | a | 67.00 | 70.00 | c | 80.00 | d | 92.00 | d | 97.00 | d | 91.00 | b | 91.00 | c | 83.00 | e | 73.00 | h | 68.00 | d | ----- | z | ||
1996 | 68.00 | i | 75.00 | d | 73.00 | j | 80.00 | k | 87.00 | f | 89.00 | f | 92.00 | i | 97.00 | e | 94.00 | g | 89.00 | n | 76.00 | b | 61.00 | g | ----- | z |
1997 | 62.00 | f | 61.00 | e | 79.00 | j | 76.00 | h | 84.00 | e | 85.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 66.21 | 68.55 | 72.63 | 79.44 | 87.13 | 94.31 | 96.68 | 95.90 | 92.74 | 85.03 | 74.52 | 66.39 | 98.88 | |||||||||||||
S.D. | 5.01 | 4.98 | 4.52 | 5.54 | 4.90 | 4.45 | 3.67 | 3.20 | 4.52 | 4.04 | 4.09 | 4.90 | 2.78 | |||||||||||||
SKEW | -0.72 | 0.01 | -0.31 | -0.56 | -0.17 | -0.30 | -0.18 | 0.06 | -0.81 | -0.03 | 0.15 | -0.03 | -0.33 | |||||||||||||
MAX | 76.00 | 78.00 | 81.00 | 89.00 | 97.00 | 104.00 | 105.00 | 104.00 | 102.00 | 96.00 | 85.00 | 81.00 | 104.00 | |||||||||||||
MIN | 49.00 | 57.00 | 61.00 | 63.00 | 77.00 | 84.00 | 88.00 | 88.00 | 74.00 | 75.00 | 66.00 | 55.00 | 91.00 | |||||||||||||
YRS | 61 | 64 | 63 | 59 | 56 | 58 | 60 | 60 | 61 | 60 | 62 | 61 | 32 |