YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | 75.79 | q | 74.13 | 77.00 | 76.52 | f | 75.47 | 76.45 | 75.70 | 73.13 | 75.31 | f | ||||||
1912 | 73.52 | 71.79 | 69.19 | 71.50 | 74.52 | 76.77 | 77.03 | 79.10 | 78.80 | 78.10 | 76.17 | 75.42 | 75.16 | |||||||||||||
1913 | 73.87 | 71.79 | 73.58 | 73.10 | 74.68 | 75.48 | e | 77.00 | c | 77.75 | c | 78.61 | b | 79.42 | 73.79 | b | 72.74 | 75.15 | ||||||||
1914 | 68.76 | b | 73.56 | a | 71.32 | 72.17 | a | 72.97 | b | 73.34 | a | 74.81 | d | 74.04 | d | 75.32 | e | 74.58 | e | 73.87 | 71.30 | a | 73.00 | |||
1915 | 70.39 | c | 67.41 | f | 72.41 | b | 73.00 | 76.42 | 76.68 | b | 77.61 | 79.23 | a | 78.92 | f | 77.39 | 74.90 | 73.53 | a | 75.16 | b | |||||
1916 | 71.61 | 75.07 | 73.94 | 75.13 | 74.48 | b | 74.73 | d | 76.34 | b | 77.48 | b | 77.92 | f | 76.78 | d | 74.43 | b | 71.48 | d | 74.68 | a | ||||
1917 | 71.75 | c | 72.75 | 72.85 | d | 74.40 | 75.79 | b | 75.89 | b | 77.67 | a | 78.59 | b | 78.97 | 78.21 | b | 75.86 | b | 74.03 | a | 75.56 | ||||
1918 | 73.22 | d | 72.33 | a | 71.38 | b | 70.64 | b | 74.87 | a | 76.46 | d | 77.04 | d | 79.59 | b | 79.92 | f | 79.72 | b | 76.53 | 72.29 | 74.92 | a | ||
1919 | 71.90 | 73.93 | a | 72.55 | b | 74.59 | a | 75.03 | 77.10 | 78.03 | a | 79.10 | a | 79.47 | 79.23 | a | 77.67 | 75.42 | 76.17 | |||||||
1920 | 73.73 | a | 74.00 | a | 74.57 | c | 75.48 | c | 77.66 | b | 78.93 | b | 78.84 | 80.07 | b | 78.97 | a | 77.48 | 74.81 | c | 73.89 | c | 76.54 | |||
1921 | 71.50 | a | 74.04 | b | 74.83 | b | 75.38 | a | 75.84 | 78.19 | c | 77.04 | c | 78.16 | 77.89 | c | 76.50 | a | 72.60 | 71.68 | c | 75.30 | ||||
1922 | 71.33 | a | 69.32 | c | 73.04 | d | 75.48 | c | 75.34 | b | 77.27 | 79.03 | a | 77.86 | c | 78.75 | n | 77.23 | e | 74.17 | g | 77.10 | b | 75.30 | b | |
1923 | 72.48 | h | 72.37 | a | 73.00 | b | 73.50 | 76.60 | a | 76.41 | a | 78.10 | a | 79.77 | e | 81.50 | 79.45 | b | 78.00 | c | 73.42 | g | 76.87 | b | ||
1924 | 73.60 | f | 74.33 | h | 73.62 | g | 74.93 | 76.07 | b | 78.15 | q | 78.65 | e | 79.46 | g | 80.25 | b | 77.42 | 77.44 | c | 75.46 | g | 77.46 | f | ||
1925 | 74.61 | 75.52 | c | 73.96 | e | 71.70 | c | 74.80 | f | 76.18 | b | 78.04 | h | 78.69 | e | 79.00 | h | 79.50 | c | 75.43 | 75.80 | a | 75.71 | c | ||
1926 | 76.56 | d | 74.35 | b | 74.65 | 73.07 | 78.18 | t | 79.50 | b | 80.35 | e | 79.15 | d | 79.56 | c | 80.14 | c | 78.39 | b | 77.14 | b | 77.53 | a | ||
1927 | 75.48 | 75.46 | 75.19 | 73.53 | 77.40 | a | 78.27 | 78.10 | a | 79.48 | 80.60 | 80.27 | a | 78.60 | 75.00 | 77.28 | ||||||||||
1928 | 72.90 | 73.41 | 77.33 | d | 76.40 | 76.60 | a | 77.17 | g | 77.50 | c | 80.04 | f | 79.54 | f | 79.22 | d | 78.08 | e | 74.60 | f | 76.43 | d | |||
1929 | 73.55 | k | 72.33 | d | 74.68 | f | 75.44 | e | 75.21 | c | 78.38 | f | 79.38 | e | 79.81 | j | 81.71 | i | 79.92 | g | 77.62 | f | 72.36 | i | 75.59 | h |
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 72.74 | 73.25 | 73.36 | 73.86 | 75.59 | 76.58 | 77.75 | 78.54 | 78.78 | 78.17 | 76.02 | 74.00 | 75.52 | |||||||||||||
S.D. | 2.01 | 1.61 | 1.87 | 1.64 | 1.20 | 1.67 | 1.25 | 1.46 | 1.85 | 1.55 | 1.81 | 1.93 | 1.27 | |||||||||||||
SKEW | 0.01 | -0.63 | -0.15 | -0.36 | -0.19 | -0.14 | -0.12 | -2.00 | -0.73 | -0.51 | -0.15 | 0.18 | -0.70 | |||||||||||||
MAX | 76.56 | 75.52 | 77.33 | 76.40 | 77.66 | 79.50 | 80.35 | 80.07 | 81.50 | 80.27 | 78.60 | 77.14 | 77.28 | |||||||||||||
MIN | 68.76 | 69.32 | 69.19 | 70.64 | 72.97 | 73.34 | 74.81 | 74.04 | 75.32 | 74.58 | 72.60 | 71.30 | 73.00 | |||||||||||||
YRS | 15 | 16 | 16 | 18 | 16 | 16 | 18 | 15 | 12 | 18 | 17 | 15 | 8 |