| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1893 | 38.68 | 47.39 | 54.45 | 54.57 | 65.70 | a | 69.83 | 79.77 | a | 83.42 | 67.00 | 57.87 | 52.43 | 49.00 | 60.01 | |||||||||||
| 1894 | 47.00 | 44.93 | 52.23 | 59.20 | 67.84 | 68.77 | 83.19 | 86.80 | a | 72.71 | b | ----- | z | 55.03 | 44.23 | a | 61.99 | |||||||||
| 1895 | 45.13 | 51.11 | 57.00 | 63.53 | 67.10 | 76.63 | 81.26 | 81.94 | 69.97 | 67.65 | 51.60 | 47.00 | 63.33 | |||||||||||||
| 1896 | 50.41 | b | 53.52 | 55.48 | 57.53 | 62.61 | 75.83 | 88.45 | 79.61 | ----- | z | ----- | z | ----- | z | ----- | z | 65.43 | ||||||||
| 1897 | 46.79 | b | 50.93 | 49.94 | 66.27 | 73.68 | 74.21 | a | 78.42 | 83.74 | 71.53 | 62.90 | 52.40 | 49.13 | 63.33 | |||||||||||
| 1898 | 46.58 | 53.89 | 54.77 | 63.67 | 68.43 | a | 74.80 | 82.00 | 80.10 | 70.13 | 63.19 | 52.57 | 47.13 | 63.11 | ||||||||||||
| 1899 | 50.06 | 48.71 | 53.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.72 | ||||
| 1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1906 | ----- | z | ----- | z | ----- | z | ----- | z | 68.53 | a | 71.31 | a | 89.90 | k | 85.23 | a | 72.85 | c | 64.16 | 51.93 | 49.37 | a | 66.20 | |||
| 1907 | 41.90 | a | 55.33 | a | 53.32 | 64.47 | 72.27 | a | 72.69 | n | 82.10 | 77.42 | g | 74.36 | b | 69.48 | j | 56.81 | c | 49.68 | 61.14 | |||||
| 1908 | 48.40 | a | 49.68 | a | 56.26 | 64.31 | a | 62.97 | 72.03 | 79.13 | 78.61 | 73.63 | 61.26 | 56.27 | 43.52 | 62.17 | ||||||||||
| 1909 | 41.83 | a | 48.54 | 55.33 | a | 62.47 | k | 65.94 | 75.52 | a | 75.90 | 80.33 | a | 75.80 | 63.74 | 52.87 | 42.03 | 61.62 | ||||||||
| 1910 | 43.65 | 42.93 | 60.90 | 62.83 | 68.74 | 68.87 | 82.00 | 79.45 | 71.33 | 64.94 | 51.27 | 47.71 | 62.05 | |||||||||||||
| 1911 | 43.35 | 47.86 | 61.48 | 56.67 | ----- | z | ----- | z | 85.03 | 81.52 | 68.50 | 63.55 | 51.53 | 44.84 | 60.43 | |||||||||||
| 1912 | 46.83 | h | 52.62 | 55.65 | 59.10 | 68.87 | ----- | z | ----- | z | 78.23 | 73.40 | 59.94 | 53.10 | 45.55 | 60.72 | ||||||||||
| 1913 | 44.06 | 49.64 | 52.68 | 60.77 | 68.10 | 73.37 | 80.32 | 82.94 | 75.57 | 62.13 | 52.20 | 45.48 | 62.27 | |||||||||||||
| 1914 | 50.06 | 50.18 | 60.03 | 62.90 | 72.48 | 72.00 | 84.71 | 82.29 | 68.87 | 64.68 | 51.87 | 42.68 | 63.56 | |||||||||||||
| 1915 | 44.32 | 50.54 | 61.55 | 67.43 | 66.71 | 74.70 | 78.13 | 86.65 | 75.50 | 65.74 | 51.30 | 47.10 | 64.14 | |||||||||||||
| 1916 | 37.35 | 55.17 | 53.71 | 64.30 | 64.94 | 73.30 | 75.94 | 82.16 | 75.33 | 66.71 | 50.65 | j | 42.90 | 62.89 | ||||||||||||
| 1917 | 45.71 | 47.68 | 50.58 | 57.03 | 63.39 | 75.40 | 85.74 | 87.06 | 73.97 | 69.58 | 55.50 | 52.48 | 63.68 | |||||||||||||
| 1918 | 50.32 | 50.18 | 55.45 | 66.03 | 66.77 | 81.47 | 80.55 | 80.77 | 80.33 | 63.19 | 49.23 | ----- | z | 65.85 | ||||||||||||
| 1919 | 45.42 | 47.39 | 56.48 | 63.07 | 68.13 | 72.43 | 84.32 | 83.16 | 73.57 | 60.61 | 51.73 | 39.97 | 62.19 | |||||||||||||
| 1920 | 46.94 | 50.83 | 53.00 | 58.60 | 68.45 | 73.93 | 80.55 | 82.84 | 70.60 | 58.68 | 53.47 | 47.94 | 62.15 | |||||||||||||
| 1921 | 45.55 | 53.00 | 56.39 | 59.97 | 68.71 | 74.67 | 82.06 | 82.06 | 73.77 | 66.94 | 54.60 | 45.00 | 63.56 | |||||||||||||
| 1922 | 44.19 | 47.39 | 51.48 | 58.63 | 69.68 | 81.40 | 85.32 | 79.42 | 77.87 | 62.26 | 48.60 | 43.71 | 62.50 | |||||||||||||
| 1923 | 46.65 | 46.07 | 55.90 | 63.47 | 68.13 | 73.93 | 79.94 | 84.74 | 77.13 | 65.13 | 56.50 | 45.97 | 63.63 | |||||||||||||
| 1924 | 45.29 | 55.00 | 55.58 | 65.37 | 75.39 | 78.23 | 83.94 | 79.39 | 73.50 | 60.11 | c | 48.73 | 38.82 | i | 65.50 | |||||||||||
| 1925 | 49.03 | 51.89 | 56.10 | 62.87 | 71.81 | 75.73 | 85.06 | 79.55 | 73.73 | 67.29 | 51.50 | 50.13 | 64.56 | |||||||||||||
| 1926 | 47.29 | 54.29 | 64.16 | 71.60 | 68.42 | 82.03 | 84.74 | 79.45 | 72.63 | 65.13 | 55.13 | 47.79 | l | 67.72 | ||||||||||||
| 1927 | 44.90 | 52.18 | 54.35 | 61.37 | 64.31 | e | 74.84 | e | 82.39 | 82.60 | a | 70.30 | 63.43 | a | 54.17 | 43.42 | 62.35 | |||||||||
| 1928 | 46.68 | 51.24 | 57.87 | 58.87 | 74.55 | 71.93 | 81.90 | 81.19 | 71.80 | 60.10 | 49.33 | 43.81 | 62.44 | |||||||||||||
| 1929 | 40.29 | 43.96 | 55.74 | 57.93 | 68.94 | 71.73 | 82.00 | 82.16 | 77.50 | 68.19 | 53.23 | 49.10 | 62.57 | |||||||||||||
| 1930 | 35.10 | 53.14 | 60.87 | 65.00 | 65.42 | 72.53 | 80.87 | 81.84 | 73.47 | 64.35 | 51.83 | 45.48 | 62.49 | |||||||||||||
| 1931 | 49.32 | 53.29 | 56.84 | 66.77 | 77.00 | 73.73 | 86.16 | 84.84 | 74.53 | 65.58 | 51.90 | 45.94 | 65.49 | |||||||||||||
| 1932 | 45.55 | 49.45 | 55.26 | 61.67 | 68.45 | 79.10 | 78.48 | 79.90 | a | 79.20 | 66.77 | 54.83 | 44.42 | 63.59 | ||||||||||||
| 1933 | 44.55 | 45.00 | 54.42 | 63.93 | 61.23 | 72.83 | 83.39 | 83.77 | 69.50 | 66.13 | 51.33 | 51.77 | 62.32 | |||||||||||||
| 1934 | 51.03 | 55.43 | 65.71 | 70.60 | 71.94 | 77.57 | 78.97 | 83.97 | 76.73 | 67.87 | 55.00 | 49.23 | 67.00 | |||||||||||||
| 1935 | 47.29 | 52.25 | 51.35 | 64.03 | 72.00 | 78.00 | 81.81 | 84.61 | 81.47 | 61.61 | 50.10 | 46.19 | 64.23 | |||||||||||||
| 1936 | 48.94 | 44.38 | 55.06 | 66.70 | 71.87 | 75.70 | 81.71 | 84.55 | 78.10 | 70.61 | 53.00 | 47.45 | 64.84 | |||||||||||||
| 1937 | 38.48 | 47.32 | 57.13 | 58.20 | 69.29 | 74.97 | 81.77 | 80.26 | 73.53 | 65.10 | 54.07 | 48.07 | a | 62.35 | ||||||||||||
| 1938 | 45.58 | 50.39 | 54.58 | 63.83 | 72.61 | 80.00 | 86.74 | 80.52 | 79.50 | 65.26 | 50.40 | 49.23 | 64.89 | |||||||||||||
| 1939 | 47.97 | 48.21 | 59.52 | 68.13 | 73.39 | 73.50 | 84.45 | 84.52 | 78.31 | a | 65.16 | 56.00 | 51.19 | 65.86 | ||||||||||||
| 1940 | 48.39 | 53.14 | 61.16 | 65.23 | 74.55 | 81.97 | 81.35 | 85.48 | 75.47 | 65.42 | 50.93 | 49.26 | 66.03 | |||||||||||||
| 1941 | 48.13 | 57.14 | 65.48 | 66.77 | 69.39 | 73.30 | 86.94 | 79.81 | 71.07 | 62.74 | 53.50 | 47.16 | 65.12 | |||||||||||||
| 1942 | 42.74 | 51.18 | 57.32 | 63.43 | 66.06 | 71.50 | 83.45 | 86.03 | 79.77 | 66.35 | 52.83 | 48.90 | 64.13 | |||||||||||||
| 1943 | 41.03 | 54.64 | 55.74 | 64.97 | 66.77 | 72.60 | 81.48 | 78.97 | 79.97 | 63.90 | 53.07 | 47.19 | 63.36 | |||||||||||||
| 1944 | 46.13 | 51.17 | 57.71 | 60.20 | 68.94 | 71.83 | 81.13 | 79.00 | 78.57 | 69.68 | 51.93 | 46.10 | 63.53 | |||||||||||||
| 1945 | 48.58 | 51.86 | 52.42 | 59.33 | 68.52 | 74.53 | 82.87 | 81.16 | 73.93 | 65.61 | 51.97 | 47.48 | 63.19 | |||||||||||||
| 1946 | 46.71 | 50.54 | 55.84 | 62.17 | 70.71 | 71.13 | 79.58 | 80.81 | 72.43 | 60.13 | 51.17 | 47.71 | 62.41 | |||||||||||||
| 1947 | 43.90 | 54.25 | 59.39 | 64.40 | 74.48 | 69.43 | 76.35 | 76.39 | 76.07 | 62.13 | 54.20 | 48.45 | 63.29 | |||||||||||||
| 1948 | 48.65 | 48.07 | 52.84 | 56.30 | 64.10 | 74.83 | ----- | z | 76.61 | 74.67 | 61.52 | 50.27 | 43.71 | 59.23 | ||||||||||||
| 1949 | 37.39 | 47.93 | 56.48 | 65.79 | a | 69.48 | 74.93 | 78.39 | 79.39 | 74.73 | 58.58 | 56.07 | 46.13 | 62.11 | ||||||||||||
| 1950 | 37.29 | 47.86 | 52.26 | 60.20 | 68.29 | 73.83 | 81.71 | 83.70 | a | 76.43 | 59.77 | 54.17 | 52.94 | 62.37 | ||||||||||||
| 1951 | 46.61 | 52.29 | 51.35 | 68.77 | 68.61 | 80.03 | 81.97 | a | 81.61 | 78.80 | 64.10 | 54.03 | 44.77 | 64.41 | ||||||||||||
| 1952 | 44.39 | 50.21 | 53.61 | 65.47 | 70.19 | 70.53 | 84.81 | 81.87 | 81.13 | 72.52 | 48.77 | 47.97 | 64.29 | |||||||||||||
| 1953 | 52.16 | 53.86 | 55.19 | 60.73 | 63.97 | 67.70 | 79.94 | 77.52 | 77.20 | 65.58 | 55.57 | 48.74 | 63.18 | |||||||||||||
| 1954 | 47.74 | 53.29 | 56.55 | 61.93 | 68.77 | 67.27 | 75.13 | 74.35 | 72.67 | 64.26 | 57.07 | 48.03 | 62.25 | |||||||||||||
| 1955 | 45.84 | 50.64 | 51.45 | 55.13 | 66.19 | 72.38 | a | 73.35 | 78.74 | 74.70 | 64.06 | 50.17 | 48.42 | 60.92 | ||||||||||||
| 1956 | 48.61 | 43.76 | 53.53 | a | 63.38 | a | 69.65 | 69.67 | 81.03 | 78.48 | 76.43 | 62.65 | 52.83 | 47.42 | 62.29 | |||||||||||
| 1957 | 40.10 | 51.86 | 55.16 | 63.20 | 68.52 | 73.00 | 78.55 | 77.42 | 80.23 | 63.77 | 54.70 | 50.20 | a | 63.06 | ||||||||||||
| 1958 | 48.61 | 56.11 | 56.90 | 61.50 | 75.77 | 74.90 | 86.42 | 87.39 | 77.27 | 70.19 | 54.70 | 53.39 | 66.93 | |||||||||||||
| 1959 | 49.10 | 51.36 | 57.81 | 64.83 | 65.71 | 72.67 | 83.39 | 81.68 | 71.23 | 65.58 | 55.77 | 46.42 | 63.79 | |||||||||||||
| 1960 | 43.00 | 50.69 | 55.35 | 60.77 | 64.06 | 77.00 | 85.84 | 79.19 | 76.37 | 66.35 | 53.90 | 46.00 | 63.21 | |||||||||||||
| 1961 | 50.61 | 53.39 | 54.58 | 60.43 | 65.87 | 78.87 | 82.84 | 84.48 | 72.50 | 63.90 | 50.27 | 47.61 | 63.78 | |||||||||||||
| 1962 | 44.03 | 49.29 | 52.55 | 64.03 | 61.10 | 74.10 | 81.29 | 79.74 | 76.87 | 63.10 | 56.53 | 48.55 | 62.60 | |||||||||||||
| 1963 | 43.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.13 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 45.47 | 50.59 | 55.92 | 62.63 | 68.62 | 74.25 | 81.78 | 81.55 | 74.77 | 64.32 | 52.91 | 47.13 | 63.39 | |||||||||||||
| S.D. | 3.77 | 3.27 | 3.42 | 3.65 | 3.60 | 3.46 | 3.11 | 2.85 | 3.37 | 3.07 | 2.20 | 2.73 | 1.38 | |||||||||||||
| SKEW | -0.74 | -0.36 | 0.90 | -0.03 | 0.17 | 0.42 | -0.34 | 0.03 | -0.02 | 0.19 | -0.02 | -0.05 | 0.61 | |||||||||||||
| MAX | 52.16 | 57.14 | 65.71 | 71.60 | 77.00 | 82.03 | 88.45 | 87.39 | 81.47 | 72.52 | 57.07 | 53.39 | 67.00 | |||||||||||||
| MIN | 35.10 | 42.93 | 49.94 | 54.57 | 61.10 | 67.27 | 73.35 | 74.35 | 67.00 | 57.87 | 48.60 | 39.97 | 60.01 | |||||||||||||
| NO YRS | 63 | 63 | 63 | 61 | 62 | 60 | 60 | 62 | 62 | 60 | 61 | 59 | 51 | |||||||||||||