YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | 69.23 | f | 66.95 | b | 59.43 | 54.88 | c | 60.42 | i | |
1919 | 56.90 | a | 52.81 | b | 55.04 | f | 57.36 | e | 60.29 | b | 63.08 | d | 65.77 | c | 65.21 | b | 63.82 | e | 59.98 | i | 58.06 | c | 58.00 | i | 60.37 | c |
1920 | 56.82 | 59.47 | 55.68 | 58.48 | 61.26 | 65.37 | 67.05 | a | 68.52 | b | 67.07 | b | 63.04 | h | 58.41 | g | 55.17 | a | 61.49 | b | ||||||
1921 | 52.60 | a | 55.39 | 57.63 | 56.32 | 58.16 | 62.52 | 67.84 | 66.13 | h | 64.86 | h | 68.17 | a | 66.89 | h | 65.08 | a | 60.41 | c | ||||||
1922 | ----- | z | ----- | z | ----- | z | 55.82 | 59.87 | 64.09 | a | 66.50 | 68.69 | 68.62 | 63.25 | a | 59.13 | 57.48 | 62.61 | c | |||||||
1923 | 56.56 | 54.78 | a | 58.19 | 58.19 | a | 62.15 | 61.87 | 65.71 | 66.79 | 66.67 | 64.10 | 64.34 | a | 57.53 | 61.41 | ||||||||||
1924 | 56.21 | 59.19 | 55.94 | 59.47 | a | 62.27 | 64.15 | 65.77 | 65.81 | 64.37 | 59.95 | 60.30 | 55.03 | a | 60.70 | |||||||||||
1925 | 54.87 | 55.66 | 56.76 | 57.47 | 61.29 | 64.13 | 68.58 | 66.52 | 65.43 | 63.06 | 61.28 | 61.37 | 61.37 | |||||||||||||
1926 | 57.92 | 59.23 | 62.71 | 62.15 | 62.87 | 65.20 | 66.97 | 68.97 | 65.58 | 64.53 | 62.90 | 55.16 | 62.85 | |||||||||||||
1927 | 54.89 | 55.48 | 55.87 | 56.81 | a | 60.18 | 62.13 | 66.03 | 66.27 | a | 65.12 | 63.73 | 62.31 | a | 55.32 | 60.34 | ||||||||||
1928 | 58.08 | a | 57.86 | a | 57.56 | 57.58 | 62.03 | 63.30 | 64.82 | 65.69 | 64.70 | 60.22 | a | 60.07 | 56.16 | 60.67 | ||||||||||
1929 | 53.89 | 53.05 | 54.70 | a | 55.62 | 61.90 | a | 64.28 | a | 67.90 | 69.67 | a | 67.63 | 66.19 | 61.63 | 60.11 | 61.38 | |||||||||
1930 | 54.79 | 58.32 | 59.08 | 61.63 | 59.45 | 64.68 | 67.48 | 70.92 | s | 66.02 | 65.48 | 61.22 | a | 56.67 | a | 61.35 | a | |||||||||
1931 | 56.52 | 57.89 | a | 61.66 | 63.15 | c | 65.55 | 67.68 | b | 74.68 | 72.22 | a | 68.52 | e | 65.73 | 57.09 | b | 53.08 | 63.65 | |||||||
1932 | 51.50 | 54.14 | 58.85 | 59.25 | 61.75 | a | 63.95 | a | 65.77 | 65.62 | a | 64.93 | 63.23 | 63.07 | 52.32 | a | 60.36 | |||||||||
1933 | 51.61 | 52.43 | 55.44 | 56.47 | a | 57.18 | 62.41 | b | 65.87 | 66.47 | 61.85 | 63.00 | 61.36 | a | 53.86 | b | 59.00 | |||||||||
1934 | 56.31 | 56.98 | 61.13 | a | 61.17 | 64.37 | 64.02 | 68.50 | 67.10 | 68.05 | 63.41 | b | 58.88 | a | 57.22 | a | 62.26 | |||||||||
1935 | 53.13 | 56.98 | 52.71 | 58.20 | 60.21 | 62.93 | a | 65.85 | 69.26 | 65.60 | 62.84 | 57.20 | 55.55 | 60.04 | ||||||||||||
1936 | 56.02 | 54.59 | 56.31 | 57.72 | 63.06 | 65.68 | 71.61 | 70.83 | a | 67.32 | 63.87 | 63.18 | 56.44 | 62.22 | ||||||||||||
1937 | 46.45 | 52.55 | 55.73 | a | 59.05 | 62.94 | 63.92 | 67.52 | a | 68.03 | 67.88 | 63.89 | 57.69 | a | 58.23 | 60.32 | ||||||||||
1938 | 57.84 | 55.45 | 56.65 | 59.36 | a | 60.34 | 63.58 | 65.79 | 69.53 | 68.87 | 62.25 | a | 57.43 | a | 57.71 | 61.23 | ||||||||||
1939 | 54.30 | a | 50.32 | 53.53 | b | 59.52 | 60.31 | 63.42 | 66.81 | 68.16 | 71.62 | 66.90 | 62.78 | 58.55 | 61.35 | |||||||||||
1940 | 56.98 | 57.05 | a | 58.85 | 60.25 | 63.32 | 63.30 | b | 65.81 | d | 66.76 | 66.17 | 64.60 | 60.10 | 58.57 | a | 61.81 | |||||||||
1941 | 55.85 | 58.02 | 59.48 | 58.67 | 65.58 | a | 64.30 | 66.37 | 67.58 | 65.05 | 64.18 | 61.73 | 56.39 | 61.93 | ||||||||||||
1942 | 55.71 | 51.98 | 56.16 | 57.93 | 59.02 | b | 63.92 | 67.98 | 68.10 | b | 66.71 | a | 66.76 | 61.03 | 57.26 | 61.05 | ||||||||||
1943 | 56.47 | 59.46 | 58.90 | 59.90 | 64.09 | c | 65.93 | 68.24 | 69.67 | j | 68.24 | a | 64.85 | a | 62.16 | a | 59.13 | a | 62.49 | a | ||||||
1944 | 57.45 | 54.59 | 59.72 | a | ----- | z | 63.03 | 64.59 | b | 66.24 | 67.55 | 66.87 | 62.90 | 60.63 | 59.26 | 62.08 | a | |||||||||
1945 | 55.77 | 56.96 | c | 55.64 | b | 57.97 | 61.02 | 64.15 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.58 | f | ||||
1946 | 54.68 | c | 52.46 | 56.41 | c | 59.62 | 60.53 | 65.40 | 68.08 | 68.59 | b | 70.25 | 62.92 | 58.17 | 55.48 | 61.05 | ||||||||||
1947 | 53.52 | 57.66 | 59.48 | 61.86 | a | 63.31 | 65.75 | 69.15 | 69.00 | 69.09 | a | 64.11 | 57.05 | 55.90 | 62.16 | |||||||||||
1948 | 55.38 | a | 53.69 | 54.24 | 59.48 | 60.98 | a | 63.40 | 65.58 | 65.60 | 66.13 | 63.13 | 59.65 | 53.27 | 60.05 | |||||||||||
1949 | 47.94 | 51.86 | 54.16 | 60.07 | 62.31 | 65.85 | 66.65 | 68.55 | 67.80 | 62.98 | 64.62 | 54.71 | 60.62 | |||||||||||||
1950 | 49.82 | 53.73 | 56.35 | 59.88 | 58.80 | a | 62.75 | 67.66 | 65.81 | 66.07 | 64.87 | 62.30 | 59.50 | b | 60.63 | |||||||||||
1951 | 54.82 | 53.91 | 58.48 | 58.52 | 59.26 | 63.60 | 67.58 | 66.15 | 65.90 | 66.00 | 59.77 | 53.68 | 60.64 | |||||||||||||
1952 | 52.00 | 54.55 | j | 53.71 | 59.15 | 61.84 | 61.98 | 64.71 | 67.55 | 68.38 | 62.85 | 58.40 | e | 55.44 | 60.55 | a | ||||||||||
1953 | 59.74 | 58.00 | 56.11 | 56.18 | 61.03 | 63.27 | 69.08 | 66.84 | 65.47 | 65.89 | 61.55 | 57.68 | 61.74 | |||||||||||||
1954 | 54.00 | 61.39 | 55.55 | 58.57 | 61.29 | 64.33 | 70.76 | 69.32 | 66.78 | 62.08 | 63.52 | 56.89 | 62.04 | |||||||||||||
1955 | 52.65 | 54.59 | a | 58.02 | 58.08 | 60.44 | 63.17 | 66.39 | 68.27 | 69.48 | a | 61.74 | 59.27 | 55.26 | 60.61 | |||||||||||
1956 | 54.56 | 51.81 | 57.58 | 57.37 | 62.00 | b | 65.03 | 65.85 | 68.16 | b | 71.15 | 62.97 | 65.57 | 59.60 | 61.80 | |||||||||||
1957 | 54.23 | 58.55 | 58.35 | 58.60 | a | 61.84 | 68.00 | c | 70.32 | 71.78 | a | 68.30 | 64.61 | 59.05 | 59.55 | 62.77 | ||||||||||
1958 | 57.63 | 58.52 | 56.18 | 63.03 | a | 63.58 | 66.18 | 66.67 | a | 69.35 | 71.63 | 70.63 | a | 61.20 | 61.23 | 63.82 | ||||||||||
1959 | 58.45 | 55.28 | a | 62.16 | 63.00 | 62.92 | 67.23 | 72.24 | 71.03 | 71.30 | h | 66.71 | e | 64.97 | a | 59.55 | 63.96 | a | ||||||||
1960 | 53.74 | h | 55.43 | 58.66 | c | 61.45 | a | 64.77 | 65.47 | 68.97 | 68.34 | 70.78 | 65.10 | 59.05 | 57.19 | 63.20 | a | |||||||||
1961 | 60.89 | 58.94 | c | 57.52 | 60.57 | 60.79 | 64.00 | 69.21 | 68.60 | 65.29 | a | 63.82 | a | 59.20 | 54.24 | 61.92 | ||||||||||
1962 | 56.11 | 53.73 | 54.00 | 60.77 | 60.60 | 61.30 | 64.63 | 68.32 | 66.17 | 63.90 | 59.35 | 56.71 | 60.47 | |||||||||||||
1963 | 54.89 | 60.43 | 56.27 | 57.03 | 62.37 | 64.27 | 66.77 | 69.40 | 72.50 | b | 66.89 | 61.40 | 58.85 | 62.59 | ||||||||||||
1964 | 55.97 | 58.38 | 56.60 | 58.95 | 58.69 | 61.83 | 66.68 | 68.68 | ----- | z | ----- | z | ----- | z | ----- | z | 60.72 | d | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 55.06 | 55.89 | 57.15 | 59.06 | 61.54 | 64.16 | 67.43 | 68.06 | 67.24 | 64.31 | 60.68 | 57.01 | 61.38 | |||||||||||||
S.D. | 2.80 | 2.72 | 2.31 | 1.93 | 1.88 | 1.51 | 2.06 | 1.69 | 2.30 | 2.03 | 2.24 | 2.53 | 1.06 | |||||||||||||
SKEW | -0.88 | -0.02 | 0.43 | 0.37 | 0.06 | 0.50 | 1.40 | 0.37 | 0.35 | 0.57 | 0.26 | 0.66 | 0.30 | |||||||||||||
MAX | 60.89 | 61.39 | 62.71 | 63.15 | 65.58 | 68.00 | 74.68 | 72.22 | 72.50 | 70.63 | 65.57 | 65.08 | 63.82 | |||||||||||||
MIN | 46.45 | 50.32 | 52.71 | 55.62 | 57.18 | 61.30 | 64.63 | 65.21 | 61.85 | 59.95 | 57.05 | 52.32 | 59.00 | |||||||||||||
YRS | 44 | 44 | 44 | 45 | 46 | 46 | 45 | 42 | 42 | 43 | 43 | 44 | 34 |