YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 73.00 | 77.00 | 94.00 | a | 92.00 | 98.00 | 108.00 | 109.00 | 102.00 | a | 98.00 | 93.00 | 81.00 | 74.00 | 109.00 | b | ||||||||||
1894 | 73.00 | 78.00 | 86.00 | 93.00 | 99.00 | a | 105.00 | 107.00 | 102.00 | 109.00 | 96.00 | 87.00 | 75.00 | 109.00 | a | |||||||||||
1895 | 67.00 | 78.00 | 95.00 | 96.00 | 106.00 | 109.00 | 105.00 | 106.00 | d | 103.00 | 87.00 | 78.00 | 72.00 | 109.00 | d | |||||||||||
1896 | 73.00 | 78.00 | 93.00 | 90.00 | 106.00 | 112.00 | 104.00 | a | 102.00 | 98.00 | c | 89.00 | 80.00 | 73.00 | 112.00 | d | ||||||||||
1897 | 67.00 | 79.00 | 80.00 | 97.00 | 97.00 | a | 104.00 | 103.00 | 105.00 | 95.00 | a | 95.00 | 82.00 | 74.00 | 105.00 | b | ||||||||||
1898 | 68.00 | 80.00 | 80.00 | 97.00 | 97.00 | 108.00 | 104.00 | 104.00 | 99.00 | 93.00 | 84.00 | 71.00 | a | 108.00 | a | |||||||||||
1899 | 71.00 | 78.00 | 87.00 | 91.00 | 98.00 | 107.00 | a | 105.00 | 103.00 | 105.00 | 90.00 | 82.00 | 71.00 | 107.00 | a | |||||||||||
1900 | 72.00 | 78.00 | 90.00 | 89.00 | 103.00 | 110.00 | 110.00 | 105.00 | 101.00 | 96.00 | 88.00 | 78.00 | 110.00 | |||||||||||||
1901 | 75.00 | 84.00 | 87.00 | a | 94.00 | 96.00 | 108.00 | 109.00 | 108.00 | 104.00 | 100.00 | a | 87.00 | 78.00 | 109.00 | b | ||||||||||
1902 | 77.00 | 81.00 | 84.00 | 97.00 | a | 100.00 | a | 114.00 | 109.00 | 110.00 | 101.00 | 96.00 | 84.00 | 80.00 | a | 114.00 | c | |||||||||
1903 | 78.00 | 79.00 | a | 85.00 | a | 98.00 | 102.00 | 110.00 | 108.00 | 107.00 | 104.00 | 92.00 | 89.00 | 79.00 | 110.00 | b | ||||||||||
1904 | 75.00 | d | 91.00 | 87.00 | d | 96.00 | 98.00 | 107.00 | 109.00 | 100.00 | 96.00 | 94.00 | 83.00 | 76.00 | 109.00 | h | ||||||||||
1905 | 79.00 | 79.00 | 84.00 | 87.00 | 98.00 | 106.00 | 109.00 | 105.00 | 99.00 | 95.00 | 82.00 | 72.00 | 109.00 | |||||||||||||
1906 | 73.00 | 82.00 | 86.00 | 91.00 | a | 97.00 | 105.00 | 104.00 | 98.00 | a | 98.00 | 93.00 | 88.00 | a | 79.00 | 105.00 | c | |||||||||
1907 | 76.00 | 79.00 | 95.00 | 93.00 | a | 96.00 | 104.00 | b | 107.00 | 100.00 | 98.00 | 92.00 | 81.00 | 75.00 | 107.00 | c | ||||||||||
1908 | 74.00 | 84.00 | d | 85.00 | 88.00 | 98.00 | 109.00 | b | 101.00 | 99.00 | e | 99.00 | 93.00 | a | 87.00 | a | 75.00 | 109.00 | m | |||||||
1909 | 78.00 | 75.00 | a | 78.00 | a | 90.00 | b | 98.00 | a | 103.00 | 105.00 | 98.00 | a | 97.00 | 92.00 | b | ----- | z | ----- | z | ----- | z | ||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.00 | 86.00 | 75.00 | c | ----- | z | ||
1911 | 80.00 | 78.00 | a | 88.00 | 88.00 | a | 93.00 | a | 101.00 | 100.00 | 101.00 | 96.00 | 87.00 | b | 77.00 | c | 75.00 | 101.00 | h | |||||||
1912 | 76.00 | 78.00 | 79.00 | 87.00 | a | 94.00 | 102.00 | 103.00 | b | 96.00 | a | 93.00 | a | 88.00 | b | 85.00 | 68.00 | 103.00 | g | |||||||
1913 | 72.00 | a | 75.00 | 87.00 | a | 86.00 | a | 96.00 | a | 96.00 | 104.00 | b | 96.00 | a | 94.00 | a | ----- | z | 80.00 | 69.00 | ----- | z | ||||
1914 | 79.00 | b | 78.00 | 87.00 | 91.00 | 102.00 | a | 105.00 | 98.00 | 101.00 | 98.00 | 89.00 | 81.00 | 68.00 | a | 105.00 | d | |||||||||
1915 | 71.00 | 79.00 | 82.00 | 88.00 | 97.00 | a | 102.00 | 101.00 | 102.00 | 95.00 | 94.00 | a | 86.00 | 76.00 | 102.00 | b | ||||||||||
1916 | 74.00 | a | 80.00 | 91.00 | 91.00 | 93.00 | 100.00 | 103.00 | 97.00 | b | 94.00 | 89.00 | b | 85.00 | 79.00 | 103.00 | e | |||||||||
1917 | 70.00 | a | 79.00 | 88.00 | 90.00 | 98.00 | 104.00 | 104.00 | 99.00 | a | 99.00 | 97.00 | a | 84.00 | 79.00 | 104.00 | c | |||||||||
1918 | 79.00 | a | 82.00 | 83.00 | a | 89.00 | a | 92.00 | 105.00 | 101.00 | 108.00 | 99.00 | a | 98.00 | a | 87.00 | b | 71.00 | 108.00 | g | ||||||
1919 | 70.00 | a | 78.00 | a | 87.00 | 93.00 | a | 94.00 | a | 103.00 | b | 97.00 | 99.00 | a | 98.00 | 84.00 | 82.00 | 72.00 | b | 103.00 | i | |||||
1920 | 80.00 | 73.00 | 79.00 | b | 89.00 | a | 95.00 | a | 102.00 | 105.00 | 98.00 | a | 98.00 | 94.00 | a | 76.00 | 72.00 | 105.00 | f | |||||||
1921 | 77.00 | 88.00 | 89.00 | 91.00 | 95.00 | a | 105.00 | b | 100.00 | a | 99.00 | 100.00 | a | 95.00 | a | 86.00 | b | 80.00 | a | 105.00 | i | |||||
1922 | 72.00 | 81.00 | 88.00 | a | 89.00 | b | 99.00 | a | 109.00 | a | 104.00 | 104.00 | b | 100.00 | c | 95.00 | c | 77.00 | b | 76.00 | b | 109.00 | q | |||
1923 | 79.00 | d | 79.00 | a | 80.00 | d | 88.00 | 96.00 | c | 108.00 | a | 105.00 | 98.00 | a | 95.00 | 98.00 | a | 74.00 | 68.00 | 108.00 | o | |||||
1924 | 73.00 | 79.00 | a | 83.00 | 93.00 | c | 95.00 | 106.00 | 102.00 | a | 102.00 | 102.00 | 94.00 | 90.00 | 73.00 | 106.00 | e | |||||||||
1925 | 78.00 | 80.00 | 86.00 | a | 96.00 | 97.00 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | 93.00 | w | 110.00 | 109.00 | 111.00 | 107.00 | 105.00 | 97.00 | 79.00 | 76.00 | ----- | z | ||||||||
1952 | 73.00 | 78.00 | a | 81.00 | 92.00 | 101.00 | 110.00 | 110.00 | 109.00 | 109.00 | a | 101.00 | 94.00 | 75.00 | 110.00 | b | ||||||||||
1953 | 78.00 | a | 81.00 | 91.00 | 98.00 | 101.00 | 114.00 | 113.00 | b | 109.00 | 110.00 | 102.00 | 91.00 | 78.00 | 114.00 | c | ||||||||||
1954 | 79.00 | 85.00 | 91.00 | a | 97.00 | 98.00 | b | 112.00 | 109.00 | 108.00 | 105.00 | 103.00 | 88.00 | 85.00 | 112.00 | c | ||||||||||
1955 | 73.00 | 81.00 | 89.00 | 92.00 | 103.00 | 112.00 | a | 110.00 | 101.00 | 105.00 | d | 100.00 | j | 87.00 | 81.00 | 112.00 | o | |||||||||
1956 | 81.00 | 77.00 | 93.00 | 92.00 | 105.00 | 112.00 | 111.00 | 108.00 | 108.00 | 97.00 | 84.00 | 76.00 | 112.00 | |||||||||||||
1957 | 75.00 | c | 89.00 | b | 88.00 | 90.00 | a | 101.00 | c | 112.00 | b | 111.00 | a | 105.00 | 105.00 | 100.00 | g | 76.00 | 73.00 | c | 112.00 | v | ||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 79.00 | 78.00 | b | 85.00 | e | 97.00 | b | 104.00 | 112.00 | a | 110.00 | 105.00 | e | 105.00 | a | 99.00 | 78.00 | c | 77.00 | b | 112.00 | u | ||||
1960 | 72.00 | 75.00 | 91.00 | 95.00 | a | 105.00 | 114.00 | a | 111.00 | b | 109.00 | a | 105.00 | b | 97.00 | 87.00 | f | 75.00 | a | 114.00 | n | |||||
1961 | 74.00 | b | 83.00 | c | 90.00 | l | 99.00 | r | 103.00 | 113.00 | h | 108.00 | u | 104.00 | n | 100.00 | f | 96.00 | 78.00 | b | 77.00 | ----- | z | |||
1962 | 75.00 | 87.00 | c | 77.00 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1963 | ----- | z | 84.00 | e | 87.00 | 98.00 | 104.00 | 107.00 | 110.00 | 104.00 | 105.00 | 100.00 | 87.00 | 78.00 | ----- | z | ||||||||||
1964 | 76.00 | 78.00 | 95.00 | a | 96.00 | 104.00 | 109.00 | 111.00 | 112.00 | a | 103.00 | 99.00 | 85.00 | 77.00 | 112.00 | b | ||||||||||
1965 | 75.00 | 81.00 | 90.00 | 100.00 | 103.00 | 107.00 | 112.00 | a | 110.00 | a | 103.00 | 101.00 | 89.00 | 78.00 | 112.00 | b | ||||||||||
1966 | 77.00 | 74.00 | 90.00 | 93.00 | 103.00 | 111.00 | 112.00 | 108.00 | 102.00 | 95.00 | 85.00 | 80.00 | a | 112.00 | a | |||||||||||
1967 | 79.00 | a | 83.00 | 94.00 | 90.00 | 105.00 | 110.00 | 106.00 | 107.00 | 102.00 | 96.00 | 89.00 | 68.00 | 110.00 | a | |||||||||||
1968 | 73.00 | 83.00 | 87.00 | 90.00 | a | 104.00 | 113.00 | 112.00 | 101.00 | 106.00 | 96.00 | a | 84.00 | 76.00 | 113.00 | b | ||||||||||
1969 | 80.00 | 76.00 | 89.00 | 100.00 | 107.00 | 113.00 | 115.00 | 111.00 | b | 107.00 | 102.00 | 85.00 | 75.00 | 115.00 | b | |||||||||||
1970 | 76.00 | 82.00 | 81.00 | 88.00 | 105.00 | 119.00 | 115.00 | 109.00 | 110.00 | 97.00 | a | 85.00 | 83.00 | 119.00 | a | |||||||||||
1971 | 87.00 | 84.00 | a | 97.00 | 96.00 | 99.00 | 111.00 | 114.00 | 106.00 | 108.00 | 91.00 | 85.00 | 75.00 | a | 114.00 | b | ||||||||||
1972 | 75.00 | 86.00 | a | 95.00 | 98.00 | a | 103.00 | 111.00 | 114.00 | 113.00 | 108.00 | 102.00 | 79.00 | 74.00 | 114.00 | b | ||||||||||
1973 | 71.00 | 76.00 | 77.00 | 92.00 | 104.00 | 114.00 | 112.00 | 110.00 | ----- | z | 101.00 | 88.00 | 81.00 | ----- | z | |||||||||||
1974 | 79.00 | 85.00 | 88.00 | 95.00 | 110.00 | 113.00 | 110.00 | 106.00 | 109.00 | 99.00 | 79.00 | 72.00 | 113.00 | |||||||||||||
1975 | 77.00 | 80.00 | a | 86.00 | 92.00 | 103.00 | 108.00 | 111.00 | 113.00 | 107.00 | 100.00 | a | 91.00 | 78.00 | 113.00 | b | ||||||||||
1976 | 80.00 | 84.00 | 85.00 | 94.00 | 103.00 | 113.00 | 111.00 | 110.00 | 101.00 | 93.00 | 87.00 | 72.00 | 113.00 | |||||||||||||
1977 | 73.00 | 87.00 | 87.00 | 95.00 | 109.00 | 110.00 | 110.00 | 110.00 | 108.00 | 103.00 | 89.00 | 78.00 | 110.00 | |||||||||||||
1978 | 77.00 | 80.00 | 91.00 | 93.00 | 104.00 | 112.00 | 111.00 | 105.00 | 104.00 | 107.00 | 86.00 | 73.00 | a | 112.00 | a | |||||||||||
1979 | 68.00 | 79.00 | 81.00 | 94.00 | a | 102.00 | a | ----- | z | 112.00 | m | 107.00 | 109.00 | 103.00 | 80.00 | 79.00 | ----- | z | ||||||||
1980 | 73.00 | 84.00 | 78.00 | a | 99.00 | a | 102.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 75.15 | 80.45 | 86.90 | 92.83 | 100.53 | 108.30 | 107.45 | 104.51 | 102.04 | 95.71 | 83.98 | 75.40 | 110.40 | |||||||||||||
S.D. | 3.87 | 3.78 | 4.94 | 3.66 | 4.39 | 4.36 | 4.48 | 4.60 | 4.75 | 4.72 | 4.40 | 3.78 | 3.56 | |||||||||||||
SKEW | 0.11 | 0.58 | -0.07 | 0.15 | 0.09 | -0.34 | -0.39 | -0.09 | -0.04 | -0.12 | -0.23 | -0.03 | -0.27 | |||||||||||||
MAX | 87.00 | 91.00 | 97.00 | 100.00 | 110.00 | 119.00 | 115.00 | 113.00 | 110.00 | 107.00 | 94.00 | 85.00 | 119.00 | |||||||||||||
MIN | 67.00 | 73.00 | 77.00 | 86.00 | 92.00 | 96.00 | 97.00 | 96.00 | 93.00 | 84.00 | 74.00 | 68.00 | 102.00 | |||||||||||||
YRS | 59 | 60 | 58 | 58 | 59 | 56 | 56 | 57 | 56 | 56 | 57 | 58 | 35 |