YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | 79.00 | j | 83.00 | 91.00 | 95.00 | 105.00 | 109.00 | 105.00 | 99.00 | 96.00 | a | 88.00 | 78.00 | ----- | z | |||||||||
1907 | 66.00 | 76.00 | 93.00 | 94.00 | 96.00 | 106.00 | 112.00 | 104.00 | 100.00 | 92.00 | 84.00 | 73.00 | 112.00 | |||||||||||||
1908 | 70.00 | 80.00 | 88.00 | 89.00 | 90.00 | 106.00 | 107.00 | 99.00 | 101.00 | 95.00 | 88.00 | 74.00 | 107.00 | |||||||||||||
1909 | 77.00 | a | 73.00 | 77.00 | a | 90.00 | 95.00 | 100.00 | ----- | z | 101.00 | 98.00 | 93.00 | 88.00 | 76.00 | ----- | z | |||||||||
1910 | 79.00 | 82.00 | 89.00 | ----- | z | ----- | z | 106.00 | a | 107.00 | a | 103.00 | 102.00 | 99.00 | 87.00 | 79.00 | ----- | z | ||||||||
1911 | 78.00 | ----- | z | 87.00 | 89.00 | a | 97.00 | 104.00 | 106.00 | 117.00 | 105.00 | 99.00 | 83.00 | 77.00 | e | ----- | z | |||||||||
1912 | 81.00 | 81.00 | 78.00 | a | 86.00 | 103.00 | 105.00 | 104.00 | c | 105.00 | 99.00 | ----- | z | ----- | z | 78.00 | a | ----- | z | |||||||
1913 | 72.00 | a | 80.00 | 90.00 | a | 90.00 | 104.00 | c | 104.00 | 109.00 | p | 104.00 | 102.00 | ----- | z | 81.00 | 69.00 | ----- | z | |||||||
1914 | 80.00 | 74.00 | 86.00 | 93.00 | 102.00 | 105.00 | 104.00 | 105.00 | 101.00 | 96.00 | 86.00 | 64.00 | a | 105.00 | a | |||||||||||
1915 | 70.00 | b | 74.00 | 81.00 | a | 89.00 | i | 98.00 | a | 105.00 | 104.00 | 107.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 89.00 | b | 89.00 | 81.00 | ----- | z | ||
1917 | 68.00 | ----- | z | 86.00 | 91.00 | d | 96.00 | j | 106.00 | a | 105.00 | 100.00 | e | 99.00 | g | 98.00 | 86.00 | g | 80.00 | h | ----- | z | ||||
1918 | 67.00 | r | 77.00 | 83.00 | 89.00 | 94.00 | 108.00 | 104.00 | b | 107.00 | a | 100.00 | 100.00 | 87.00 | 75.00 | 108.00 | u | |||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | 97.00 | 109.00 | d | 106.00 | 105.00 | 100.00 | j | 95.00 | a | ----- | z | 80.00 | ----- | z | ||||
1920 | 80.00 | c | 79.00 | a | 82.00 | a | 92.00 | 99.00 | 106.00 | 110.00 | 104.00 | 103.00 | 96.00 | 79.00 | 78.00 | 110.00 | e | |||||||||
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 | ----- | 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 | ----- | 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 | 89.00 | e | 94.00 | d | 96.00 | f | 108.00 | e | 108.00 | e | 105.00 | e | 103.00 | f | 100.00 | d | 88.00 | f | 80.00 | g | ----- | z |
1954 | 75.00 | g | 82.00 | d | 84.00 | d | 94.00 | d | 97.00 | e | 107.00 | d | 107.00 | e | 103.00 | e | 103.00 | e | 97.00 | e | 86.00 | d | 84.00 | f | ----- | z |
1955 | 72.00 | f | 78.00 | d | 80.00 | e | 85.00 | e | 97.00 | g | 106.00 | d | 104.00 | e | 94.00 | d | 99.00 | e | 96.00 | e | 82.00 | e | 78.00 | h | ----- | z |
1956 | 79.00 | f | 76.00 | e | 89.00 | l | 89.00 | g | 102.00 | e | 108.00 | d | 107.00 | f | 103.00 | d | 104.00 | f | 99.00 | d | 85.00 | e | 76.00 | f | ----- | z |
1957 | 75.00 | e | 88.00 | d | 85.00 | j | 88.00 | e | 95.00 | f | 110.00 | e | 108.00 | d | 104.00 | b | 100.00 | c | 98.00 | d | 74.00 | e | 74.00 | f | ----- | z |
1958 | 71.00 | e | 80.00 | e | 75.00 | e | 93.00 | e | 105.00 | e | 106.00 | d | 110.00 | e | 100.00 | e | 101.00 | g | 92.00 | d | 84.00 | h | 79.00 | i | ----- | z |
1959 | 79.00 | e | 79.00 | e | 80.00 | g | 94.00 | c | 97.00 | g | 108.00 | 105.00 | b | 100.00 | d | 102.00 | d | 96.00 | b | 77.00 | d | 75.00 | h | ----- | z | |
1960 | 72.00 | b | 74.00 | c | 86.00 | a | 92.00 | d | 102.00 | d | 110.00 | e | 106.00 | f | 104.00 | d | 100.00 | g | 94.00 | e | 86.00 | f | 77.00 | h | ----- | z |
1961 | 73.00 | e | 80.00 | e | 83.00 | g | 92.00 | g | 97.00 | e | 107.00 | d | 107.00 | i | 103.00 | e | 97.00 | g | 92.00 | i | 76.00 | g | 74.00 | h | ----- | z |
1962 | 72.00 | f | 84.00 | d | 87.00 | g | 96.00 | g | 97.00 | g | 108.00 | g | 104.00 | g | 107.00 | d | 103.00 | n | 92.00 | e | 87.00 | h | 76.00 | l | ----- | z |
1963 | 75.00 | g | 85.00 | e | 82.00 | f | 93.00 | d | 98.00 | g | 102.00 | f | 106.00 | e | 100.00 | d | 101.00 | f | 96.00 | d | 86.00 | e | 72.00 | f | ----- | z |
1964 | 75.00 | e | 75.00 | e | 87.00 | e | 92.00 | d | 98.00 | f | 104.00 | d | 105.00 | e | 102.00 | e | 99.00 | e | 95.00 | d | 83.00 | g | 76.00 | g | ----- | z |
1965 | 75.00 | f | 79.00 | e | 82.00 | f | 97.00 | d | 97.00 | f | 103.00 | d | 106.00 | e | 105.00 | e | 99.00 | e | 97.00 | e | 88.00 | f | 78.00 | e | ----- | z |
1966 | 72.00 | f | 70.00 | e | 83.00 | d | 87.00 | d | 97.00 | f | 105.00 | d | 105.00 | b | 102.00 | c | 99.00 | b | 90.00 | c | 85.00 | c | 76.00 | d | ----- | z |
1967 | 79.00 | e | 80.00 | e | 87.00 | d | 85.00 | h | 99.00 | g | 103.00 | a | 105.00 | d | 103.00 | c | 99.00 | f | 95.00 | f | 87.00 | e | 66.00 | h | ----- | z |
1968 | 70.00 | h | 80.00 | d | 84.00 | e | 88.00 | e | 102.00 | f | 110.00 | f | 105.00 | g | 98.00 | i | 103.00 | l | 95.00 | i | 86.00 | j | 80.00 | j | ----- | z |
1969 | 79.00 | h | 71.00 | h | 88.00 | j | 92.00 | h | 102.00 | j | 105.00 | i | 108.00 | i | 107.00 | k | 102.00 | i | 95.00 | h | 80.00 | j | 77.00 | k | ----- | z |
1970 | 77.00 | j | 79.00 | h | 79.00 | i | 87.00 | h | 102.00 | j | 112.00 | h | 107.00 | i | 104.00 | j | 104.00 | i | 87.00 | i | 86.00 | j | 82.00 | j | ----- | z |
1971 | 86.00 | l | 81.00 | h | 90.00 | h | 90.00 | h | 94.00 | k | 104.00 | h | 107.00 | j | 99.00 | i | 101.00 | i | 91.00 | j | 86.00 | j | 79.00 | i | ----- | z |
1972 | 75.00 | j | 82.00 | h | 91.00 | h | 93.00 | j | 94.00 | i | 105.00 | h | 108.00 | k | 108.00 | h | 100.00 | j | 99.00 | i | 79.00 | d | 71.00 | ----- | z | |
1973 | 73.00 | f | 77.00 | b | 73.00 | a | 91.00 | 100.00 | f | 108.00 | b | 107.00 | d | 103.00 | h | 102.00 | j | 95.00 | h | 88.00 | i | ----- | z | ----- | z | |
1974 | 74.00 | j | 76.00 | h | 85.00 | f | 89.00 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 74.72 | 78.58 | 83.96 | 90.92 | 98.41 | 106.00 | 106.42 | 103.48 | 100.61 | 95.60 | 84.05 | 75.44 | 108.00 | |||||||||||||
S.D. | 4.62 | 4.00 | 4.96 | 2.92 | 4.05 | 2.23 | 2.19 | 3.80 | 1.88 | 2.99 | 4.15 | 4.43 | 3.61 | |||||||||||||
SKEW | -0.28 | 0.12 | -0.49 | -0.15 | -0.09 | -0.35 | 0.88 | 0.98 | 0.69 | -0.48 | -0.95 | -1.18 | 0.47 | |||||||||||||
MAX | 81.00 | 88.00 | 93.00 | 97.00 | 105.00 | 110.00 | 112.00 | 117.00 | 105.00 | 100.00 | 89.00 | 81.00 | 112.00 | |||||||||||||
MIN | 66.00 | 70.00 | 73.00 | 85.00 | 90.00 | 100.00 | 104.00 | 94.00 | 98.00 | 89.00 | 74.00 | 64.00 | 105.00 | |||||||||||||
YRS | 18 | 26 | 23 | 24 | 17 | 28 | 24 | 29 | 18 | 25 | 20 | 16 | 3 |