YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | 57.89 | j | 61.90 | 66.07 | 74.56 | 86.12 | 86.87 | 82.48 | 82.98 | 73.55 | a | 60.92 | 56.90 | 73.24 | b | |||||||||
1907 | 46.76 | 60.73 | 61.82 | 70.15 | 72.77 | 80.87 | 85.81 | 82.48 | 84.33 | 68.58 | 59.00 | 57.18 | 69.21 | |||||||||||||
1908 | 54.71 | 52.83 | 63.40 | a | 64.28 | 70.23 | 83.47 | 84.35 | 82.71 | 78.27 | 69.24 | 65.71 | a | 55.18 | 68.70 | |||||||||||
1909 | 57.43 | a | 54.61 | 54.57 | a | 68.20 | 74.03 | 86.87 | ----- | z | 82.60 | 78.95 | 73.61 | 63.08 | 50.40 | 67.67 | a | |||||||||
1910 | 53.21 | 55.79 | 68.18 | ----- | z | ----- | z | 86.47 | a | 87.28 | b | 86.18 | 85.25 | 75.31 | 61.68 | 58.68 | 71.80 | b | ||||||||
1911 | 57.44 | ----- | z | 67.71 | 69.43 | a | 76.29 | 85.65 | 83.35 | 86.76 | 83.35 | 71.98 | 59.63 | 48.38 | e | 71.82 | a | |||||||||
1912 | 56.94 | 58.93 | 57.77 | a | 62.70 | 78.47 | a | 86.28 | 82.09 | d | 85.11 | 80.37 | ----- | z | ----- | z | 48.36 | b | 69.70 | b | ||||||
1913 | 47.57 | d | 53.26 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.13 | 50.99 | i | |
1914 | 57.27 | 57.50 | 64.13 | 69.42 | 77.16 | 84.77 | 86.24 | 86.37 | 83.55 | 71.56 | 65.41 | a | 49.22 | a | 71.05 | |||||||||||
1915 | 51.97 | b | 54.50 | 59.35 | a | 68.33 | i | 71.12 | a | 85.95 | 86.61 | 88.16 | b | ----- | z | ----- | z | ----- | z | ----- | z | 71.09 | e | |||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.21 | b | 62.92 | 50.81 | 61.31 | i | ||
1917 | 50.76 | ----- | z | 59.81 | 67.38 | d | 68.05 | j | 83.80 | j | 86.03 | 85.13 | e | 78.98 | g | 71.84 | 62.96 | g | 57.38 | j | 70.16 | f | ||||
1918 | 46.62 | s | 57.34 | 63.35 | 68.15 | 72.03 | 87.82 | 86.34 | b | 82.85 | a | 83.02 | 75.32 | 58.38 | 50.02 | 71.33 | a | |||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.62 | e | 82.53 | 85.53 | 79.08 | j | ----- | z | ----- | z | ----- | z | 85.56 | i | ||
1920 | ----- | z | 59.22 | b | 57.62 | a | 65.73 | 77.34 | 85.18 | 90.90 | 84.48 | 79.03 | 70.02 | a | 61.62 | 52.92 | 71.28 | a | ||||||||
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 | 63.60 | e | 67.50 | d | 71.74 | f | 85.61 | h | 86.65 | g | 88.23 | e | 87.07 | h | 74.22 | d | 64.16 | h | 53.48 | h | 73.39 | h |
1954 | 55.93 | h | 63.27 | d | 60.23 | i | 73.86 | e | 77.68 | f | 84.20 | e | 86.60 | f | 82.14 | f | 83.22 | e | 75.46 | e | 65.15 | d | 55.36 | f | 74.19 | f |
1955 | 47.36 | f | 52.23 | f | 62.22 | f | 65.90 | e | 73.27 | g | 82.84 | e | 82.63 | e | 79.56 | d | 82.34 | e | 75.06 | f | 60.30 | e | 59.48 | h | 75.60 | f |
1956 | 61.64 | m | 53.92 | j | 65.18 | l | 66.93 | g | 79.31 | e | 87.94 | d | 86.06 | f | 85.26 | d | 86.29 | f | 72.69 | d | 59.73 | f | 55.21 | g | 81.30 | h |
1957 | 53.31 | e | 62.33 | d | 61.83 | j | 66.16 | e | 71.16 | f | 85.88 | e | 86.70 | f | 83.79 | e | 83.56 | e | 69.07 | d | 54.85 | f | 55.89 | h | 72.01 | e |
1958 | 53.87 | e | 56.43 | e | 53.90 | e | 64.42 | f | 79.90 | f | 85.38 | f | 86.46 | f | 82.00 | e | 78.11 | h | 70.62 | e | ----- | z | 58.19 | j | 63.36 | g |
1959 | 57.44 | f | 55.23 | f | 63.00 | h | 72.38 | e | 75.43 | j | 86.85 | d | 86.04 | f | 79.77 | g | 79.15 | d | 70.65 | d | 59.52 | g | 53.30 | k | 77.26 | h |
1960 | 47.38 | e | 50.86 | h | 64.48 | e | 70.10 | i | 74.88 | g | 87.15 | f | 87.64 | f | 85.93 | d | 83.78 | g | 70.10 | e | 63.04 | g | 50.43 | j | 66.97 | h |
1961 | 55.08 | f | 55.95 | f | 59.60 | g | 68.91 | h | 75.98 | e | 86.42 | f | 87.11 | i | 82.12 | e | 78.72 | g | 72.57 | j | 55.91 | g | 51.02 | i | 79.05 | j |
1962 | 49.58 | f | 56.21 | d | 53.83 | g | 73.26 | g | 73.98 | g | 82.57 | g | 87.10 | g | 88.81 | e | 81.31 | n | 72.98 | e | 65.93 | h | 54.64 | m | 72.67 | i |
1963 | 50.06 | g | 60.98 | e | 59.58 | f | 64.63 | d | 79.40 | g | 81.08 | f | 88.10 | e | 81.13 | d | 82.06 | f | 75.17 | d | 59.58 | e | 53.50 | f | 71.60 | f |
1964 | 48.04 | e | 48.58 | e | 53.56 | e | 63.10 | d | 73.16 | f | 81.31 | d | 86.90 | e | 81.50 | e | 77.46 | e | 74.83 | d | 54.63 | g | 53.17 | g | 68.36 | c |
1965 | 53.88 | f | 53.15 | e | 56.38 | f | 66.38 | d | 72.56 | f | 78.62 | d | 85.92 | e | 84.94 | e | 78.60 | e | 75.04 | e | 63.90 | f | 52.08 | e | 71.84 | d |
1966 | 48.50 | f | 47.67 | e | 60.39 | d | 68.12 | d | 76.88 | f | 83.31 | d | 85.46 | g | 84.17 | h | 80.35 | g | 71.62 | e | 64.02 | f | 54.19 | e | 64.22 | f |
1967 | 52.38 | f | 57.91 | e | 64.48 | d | 63.02 | h | 75.40 | g | 81.23 | d | 84.84 | f | 84.85 | e | 82.26 | i | 74.54 | f | 66.06 | e | 48.13 | h | 70.91 | g |
1968 | 53.00 | h | 58.88 | d | 58.52 | e | 63.02 | e | 76.06 | f | 86.35 | f | 85.83 | g | 81.95 | i | 84.08 | l | 74.71 | j | 62.17 | j | 50.52 | j | 60.14 | i |
1969 | 57.11 | h | 52.58 | h | 56.11 | l | 69.43 | h | 74.10 | j | 76.75 | j | 87.89 | i | 88.30 | k | 81.81 | i | 70.07 | h | 59.55 | j | 54.52 | k | ----- | z |
1970 | 52.61 | l | 58.42 | p | 57.43 | j | 62.59 | h | 78.38 | j | 85.93 | i | 88.52 | i | 86.05 | j | 80.74 | i | 68.70 | i | 65.00 | j | 54.31 | j | ----- | z |
1971 | 53.68 | l | 56.88 | h | 63.02 | h | 64.80 | h | 72.78 | k | 83.66 | h | 88.36 | j | 81.66 | i | 81.83 | i | 66.52 | j | 59.38 | j | 48.48 | i | ----- | z |
1972 | 54.31 | j | 58.62 | h | 68.59 | h | 70.47 | j | 76.45 | i | 83.18 | h | 88.22 | k | 84.74 | h | 81.58 | j | 68.73 | i | 55.58 | e | 49.97 | 52.77 | j | |
1973 | 50.73 | g | 53.94 | b | 52.71 | b | 62.98 | 77.06 | f | 85.84 | b | 87.64 | f | 86.98 | j | 83.50 | j | 74.91 | i | 64.38 | i | ----- | z | 63.87 | h | |
1974 | 51.52 | j | 54.77 | h | 62.96 | g | 67.78 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.62 | 56.38 | 60.56 | 66.93 | 74.94 | 84.82 | 85.75 | 84.36 | 81.46 | 72.33 | 61.67 | 52.43 | 69.65 | |||||||||||||
S.D. | 3.98 | 4.07 | 4.56 | 3.04 | 2.96 | 2.58 | 2.30 | 2.38 | 2.54 | 2.26 | 3.06 | 3.32 | 1.24 | |||||||||||||
SKEW | -0.20 | -0.38 | -0.20 | 0.50 | -0.15 | -0.74 | 0.16 | 0.05 | -0.20 | -0.03 | -0.13 | 0.52 | 0.57 | |||||||||||||
MAX | 57.44 | 63.27 | 68.18 | 73.86 | 79.31 | 88.62 | 90.90 | 88.81 | 85.25 | 75.46 | 66.06 | 58.68 | 71.05 | |||||||||||||
MIN | 46.76 | 47.67 | 52.71 | 62.70 | 70.23 | 78.62 | 82.09 | 79.56 | 77.46 | 68.58 | 55.58 | 48.36 | 68.70 | |||||||||||||
YRS | 14 | 21 | 20 | 21 | 12 | 22 | 16 | 25 | 16 | 23 | 15 | 15 | 3 |