| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1893 | ----- | z | 34.11 | ----- | z | 54.93 | 64.64 | c | 72.11 | b | 81.97 | 83.57 | a | 69.40 | 54.68 | 47.87 | 46.13 | a | 60.94 | |||||||
| 1894 | 38.87 | a | 37.79 | 48.94 | 57.80 | ----- | z | ----- | z | ----- | z | 87.13 | 69.13 | 60.74 | 53.63 | 38.77 | 54.76 | |||||||||
| 1895 | 39.13 | 46.86 | 52.06 | 63.70 | 67.39 | 76.90 | 82.97 | 85.03 | 66.83 | 67.74 | 49.90 | 42.45 | 61.75 | |||||||||||||
| 1896 | 46.03 | 50.04 | a | 51.42 | 54.43 | 60.97 | 77.87 | 90.23 | 84.65 | 72.33 | 64.77 | 41.63 | 44.71 | 61.59 | ||||||||||||
| 1897 | 35.58 | 44.18 | 43.19 | 64.30 | 75.45 | 73.37 | 80.23 | 89.97 | 72.13 | 63.10 | 47.03 | 40.68 | 60.77 | |||||||||||||
| 1898 | 37.90 | 51.82 | 47.71 | 64.90 | 72.55 | 76.50 | b | 86.48 | 90.71 | 77.23 | 63.06 | 45.10 | 32.52 | 62.21 | ||||||||||||
| 1899 | 40.84 | 36.57 | 48.48 | 56.63 | 62.48 | 72.70 | 86.84 | 76.23 | 78.93 | 58.87 | 59.17 | 44.77 | 60.21 | |||||||||||||
| 1900 | 49.74 | 44.50 | 59.61 | 60.53 | 70.00 | 79.77 | 86.81 | 78.58 | 70.93 | 60.52 | 48.90 | ----- | z | 64.54 | ||||||||||||
| 1901 | 41.74 | 43.63 | a | 51.97 | 58.21 | f | 69.74 | 69.78 | c | 84.61 | c | 90.33 | a | 67.27 | 69.71 | 56.69 | a | 43.23 | 62.61 | |||||||
| 1902 | 35.65 | 48.54 | 52.62 | e | 58.03 | 65.65 | 73.60 | 79.74 | 83.32 | 74.13 | 66.00 | 47.76 | a | 40.45 | 60.46 | |||||||||||
| 1903 | 41.39 | 40.50 | 51.84 | 56.83 | 66.65 | 80.57 | 79.27 | e | 81.75 | g | 70.83 | g | 64.45 | b | 51.89 | k | 42.43 | h | 60.19 | |||||||
| 1904 | 45.59 | i | 45.20 | i | 46.69 | b | 64.30 | 68.84 | 78.54 | d | 80.19 | e | 88.19 | 80.00 | b | 65.06 | 58.73 | 44.10 | b | 67.47 | ||||||
| 1905 | 40.65 | 40.50 | 53.21 | c | 62.00 | 65.58 | 73.73 | 89.10 | 85.13 | 76.33 | 57.71 | 51.07 | 40.48 | 61.29 | ||||||||||||
| 1906 | 45.22 | d | 43.04 | 48.37 | a | 66.80 | 69.87 | 71.93 | 93.61 | 84.97 | 76.28 | a | 66.90 | 49.03 | 46.96 | e | 63.58 | |||||||||
| 1907 | 28.80 | a | 43.75 | 47.52 | 58.63 | 72.06 | 71.93 | 85.58 | 77.29 | 74.26 | g | 71.26 | 54.14 | a | 47.68 | 59.88 | ||||||||||
| 1908 | 48.60 | a | 44.07 | 51.29 | 63.61 | b | 66.08 | e | 76.31 | a | 90.53 | a | 86.29 | 79.93 | 59.86 | c | 55.30 | 36.44 | d | 63.19 | ||||||
| 1909 | 36.29 | 47.84 | c | 55.65 | 59.68 | b | 67.65 | 77.31 | a | 83.35 | 86.29 | 77.17 | 64.55 | 50.57 | 32.06 | 61.53 | ||||||||||
| 1910 | 38.74 | 37.29 | 58.35 | 67.83 | 78.93 | a | 83.40 | 90.33 | a | 83.52 | 75.33 | 68.64 | c | 49.54 | b | 43.93 | b | 64.65 | ||||||||
| 1911 | 43.50 | a | 43.54 | 58.97 | 65.57 | 63.39 | 77.87 | 86.46 | e | 84.82 | c | 69.83 | 66.45 | 61.33 | 41.90 | 63.64 | ||||||||||
| 1912 | 40.65 | 43.33 | b | 48.23 | 58.93 | b | 68.73 | a | 76.50 | 80.68 | 77.45 | 70.30 | 58.68 | 51.03 | 42.55 | 59.75 | ||||||||||
| 1913 | 37.77 | a | 35.71 | 46.84 | 60.57 | 67.32 | 74.17 | 89.06 | ----- | z | 82.00 | 58.57 | a | 49.73 | 39.68 | 58.31 | ||||||||||
| 1914 | 47.87 | 43.46 | 57.19 | 62.87 | 73.00 | 75.03 | 90.71 | 89.71 | 73.20 | 68.10 | 51.73 | 34.23 | 63.93 | |||||||||||||
| 1915 | 37.61 | 49.36 | 57.77 | 72.07 | 65.87 | 76.60 | 84.19 | 92.00 | 73.57 | b | 65.74 | 48.03 | 43.68 | 63.87 | ||||||||||||
| 1916 | 26.81 | 39.59 | 53.39 | 63.93 | 63.61 | 74.93 | 79.65 | 85.29 | 76.27 | 66.57 | a | 47.40 | e | 38.10 | 59.63 | |||||||||||
| 1917 | 38.19 | 41.79 | 45.06 | 55.93 | 65.23 | 75.80 | 88.26 | 87.55 | 74.67 | 66.03 | 56.77 | 53.13 | 62.37 | |||||||||||||
| 1918 | 49.23 | 47.43 | 59.17 | a | 65.31 | a | 68.45 | 84.93 | b | 88.45 | k | 78.93 | b | 79.67 | 63.23 | 48.73 | 39.35 | 62.22 | ||||||||
| 1919 | 43.48 | 41.50 | 51.50 | c | 67.07 | 69.58 | 76.10 | 88.00 | 87.19 | 71.80 | 55.00 | a | 45.19 | c | 30.48 | 60.57 | ||||||||||
| 1920 | 36.48 | 42.69 | 48.35 | 53.47 | 65.97 | 71.80 | 86.32 | 82.87 | 69.03 | 55.03 | 45.62 | a | 41.06 | 58.23 | ||||||||||||
| 1921 | 39.42 | 45.04 | 51.29 | 57.20 | 67.81 | 75.77 | 83.52 | 83.55 | 67.03 | 60.32 | 43.60 | 32.61 | 58.93 | |||||||||||||
| 1922 | 28.65 | 35.71 | 46.65 | 55.20 | 67.61 | 84.03 | 86.94 | 82.42 | 79.83 | 65.39 | 42.23 | 37.74 | 59.37 | |||||||||||||
| 1923 | 43.65 | 36.61 | 54.10 | 64.03 | 68.23 | 71.53 | 85.77 | 85.45 | 84.03 | 60.68 | 50.53 | 52.74 | 63.11 | |||||||||||||
| 1924 | 36.57 | a | 53.52 | 52.10 | 63.63 | 78.52 | 79.73 | 87.10 | 83.61 | c | 76.26 | c | 59.48 | 40.93 | 28.14 | b | 61.63 | |||||||||
| 1925 | 42.77 | 48.93 | 53.13 | 63.57 | 69.26 | 77.07 | 89.68 | l | ----- | z | ----- | z | ----- | z | ----- | z | 38.41 | n | 59.12 | |||||||
| 1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.84 | 51.80 | 35.74 | 50.13 | ||||
| 1928 | 38.97 | 44.41 | 56.31 | b | 59.70 | 79.48 | 76.37 | 88.68 | 85.65 | 77.40 | 63.26 | 47.90 | 39.58 | 63.14 | ||||||||||||
| 1929 | 28.17 | b | 32.82 | 53.74 | 57.50 | 71.16 | 75.13 | 85.81 | 89.52 | 73.83 | 68.03 | 51.10 | 48.48 | 61.28 | ||||||||||||
| 1930 | 22.29 | 50.00 | 54.39 | 67.70 | 66.97 | 75.50 | 86.77 | 86.35 | 74.37 | 55.84 | 44.83 | 36.77 | 60.15 | |||||||||||||
| 1931 | 42.90 | 44.00 | 53.39 | 63.40 | 75.35 | 74.97 | 88.58 | 87.16 | 74.23 | 62.77 | 42.80 | 39.26 | 62.40 | |||||||||||||
| 1932 | 37.81 | 43.00 | 50.00 | 62.70 | 67.77 | 80.33 | 81.97 | 84.06 | 78.10 | 64.63 | a | 53.73 | 35.45 | 61.63 | ||||||||||||
| 1933 | 39.87 | 36.82 | 52.29 | 61.40 | 63.58 | 75.40 | 86.10 | 85.84 | 70.77 | 67.32 | 48.83 | 46.77 | 61.25 | |||||||||||||
| 1934 | 47.65 | 48.89 | 61.87 | 70.53 | 73.68 | 76.97 | 86.26 | 88.90 | 74.50 | 62.90 | 50.10 | 40.45 | 65.23 | |||||||||||||
| 1935 | 39.39 | 44.04 | 49.90 | 57.00 | 70.10 | 76.47 | 85.39 | 84.29 | 81.00 | 60.65 | 44.41 | a | 35.55 | 60.68 | ||||||||||||
| 1936 | 40.77 | a | 26.66 | 50.68 | 65.00 | 75.32 | 76.07 | a | 85.90 | a | 84.52 | 73.69 | a | 68.58 | 46.07 | a | 44.30 | a | 61.46 | |||||||
| 1937 | 23.03 | 41.86 | 55.68 | 56.90 | a | 71.19 | 75.63 | 86.65 | 81.97 | 77.90 | 64.66 | b | 50.43 | 41.17 | a | 60.59 | ||||||||||
| 1938 | 39.81 | 40.79 | 51.61 | 63.00 | 69.97 | 78.90 | 89.00 | 83.77 | 81.33 | 62.87 | 43.90 | 41.26 | 62.18 | |||||||||||||
| 1939 | 44.13 | 40.04 | 54.00 | 65.63 | 72.74 | 73.17 | 87.00 | a | 88.13 | 77.72 | a | 63.63 | a | 57.70 | 49.13 | 64.42 | ||||||||||
| 1940 | 37.52 | 46.14 | 58.55 | 61.33 | 74.84 | 82.17 | 85.65 | 87.16 | 75.50 | 65.06 | 42.57 | 42.81 | 63.27 | |||||||||||||
| 1941 | 38.84 | 48.61 | 60.65 | 64.67 | 66.48 | 72.20 | 88.97 | 82.35 | 67.20 | 57.58 | 52.23 | 42.55 | 61.86 | |||||||||||||
| 1942 | 30.26 | 43.36 | 55.45 | 65.07 | 67.10 | 72.93 | 85.81 | 88.52 | 79.97 | 67.90 | 47.63 | 45.16 | 62.43 | |||||||||||||
| 1943 | 33.74 | 42.86 | 52.06 | 66.67 | 66.35 | 71.03 | 87.13 | 83.68 | 81.50 | 64.29 | 46.33 | 37.48 | 61.09 | |||||||||||||
| 1944 | 41.77 | 42.93 | 53.74 | 63.00 | 70.97 | 75.63 | 87.06 | 85.84 | 80.93 | 70.58 | 47.90 | 35.58 | 63.00 | |||||||||||||
| 1945 | 42.71 | 47.00 | 50.77 | 59.90 | 68.97 | 74.80 | 89.74 | 87.13 | 72.89 | b | 67.97 | a | 49.67 | 42.45 | 62.83 | |||||||||||
| 1946 | 47.68 | 50.11 | 54.03 | 65.93 | 73.13 | 74.46 | d | 87.10 | a | 87.28 | f | 75.70 | c | 59.68 | 49.47 | 47.00 | 62.21 | |||||||||
| 1947 | 42.87 | 51.82 | 61.71 | 66.20 | 78.48 | 77.00 | 86.32 | 85.06 | 80.20 | 66.48 | 49.13 | 45.16 | 65.87 | |||||||||||||
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.03 | a | 83.03 | 73.62 | a | 61.32 | 50.50 | 41.58 | 65.51 | |||||
| 1949 | 29.23 | 45.61 | 54.29 | 68.90 | 75.48 | 79.63 | 84.50 | u | 76.27 | p | 74.28 | a | 58.17 | b | 52.67 | 41.58 | 57.98 | |||||||||
| 1950 | 27.71 | 44.04 | b | 46.94 | 55.97 | 63.83 | m | 71.46 | b | 85.58 | 85.94 | 76.33 | 62.03 | a | 49.37 | 45.83 | a | 59.20 | ||||||||
| 1951 | 36.00 | 43.56 | a | 46.91 | h | 62.43 | 70.87 | 73.50 | 87.45 | 84.33 | a | 77.50 | 57.71 | 46.30 | 36.16 | 61.44 | ||||||||||
| 1952 | 36.71 | 44.76 | 47.71 | 63.50 | 69.32 | 74.10 | 86.21 | b | 84.26 | 79.37 | 69.27 | a | 43.63 | 40.68 | 61.63 | |||||||||||
| 1953 | 50.40 | a | 46.04 | 49.13 | a | 55.93 | a | 63.68 | 67.37 | 85.58 | 82.90 | a | 80.19 | i | 64.55 | 53.83 | 46.74 | 60.56 | ||||||||
| 1954 | 39.26 | 43.14 | 48.92 | f | 58.66 | a | 68.48 | 69.77 | 83.81 | 80.04 | f | 72.33 | 61.33 | a | ----- | z | 0.00 | z | 62.10 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 38.90 | 43.39 | 52.53 | 61.95 | 69.45 | 75.67 | 86.00 | 85.04 | 75.23 | 63.31 | 49.38 | 41.15 | 61.92 | |||||||||||||
| S.D. | 6.47 | 5.09 | 4.31 | 4.33 | 4.30 | 3.52 | 3.07 | 3.33 | 4.27 | 4.12 | 4.55 | 5.22 | 1.69 | |||||||||||||
| SKEW | -0.58 | -0.64 | 0.25 | -0.03 | 0.52 | 0.41 | -0.36 | -0.51 | -0.18 | -0.25 | 0.44 | -0.14 | 0.13 | |||||||||||||
| MAX | 50.40 | 53.52 | 61.87 | 72.07 | 79.48 | 84.93 | 93.61 | 92.00 | 84.03 | 71.26 | 61.33 | 53.13 | 65.87 | |||||||||||||
| MIN | 22.29 | 26.66 | 43.19 | 53.47 | 60.97 | 67.37 | 79.27 | 76.23 | 66.83 | 54.68 | 40.93 | 28.14 | 58.23 | |||||||||||||
| NO YRS | 57 | 58 | 56 | 58 | 57 | 58 | 56 | 54 | 56 | 60 | 58 | 57 | 43 | |||||||||||||