| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.74 | g | 83.55 | 78.94 | 70.30 | 55.06 | 41.20 | 34.26 | 60.55 | |||||||
| 1912 | 32.90 | 39.45 | 49.48 | 54.60 | 64.81 | 71.00 | 79.61 | 80.71 | 65.37 | 55.29 | 39.13 | 30.19 | 55.21 | |||||||||||||
| 1913 | 26.61 | 41.82 | 44.94 | 57.90 | 66.19 | 74.57 | 80.84 | 84.35 | 77.80 | 70.06 | 66.10 | 57.84 | 62.42 | |||||||||||||
| 1914 | 61.71 | 59.50 | 60.61 | ----- | z | ----- | z | ----- | z | ----- | z | 83.40 | a | ----- | z | 72.26 | 63.70 | ----- | z | 66.86 | ||||||
| 1915 | 59.17 | a | 54.61 | 57.03 | 64.83 | ----- | z | ----- | z | ----- | z | 94.48 | b | ----- | z | 61.52 | 49.37 | ----- | z | 63.00 | ||||||
| 1916 | ----- | z | 48.00 | z | ----- | z | ----- | z | 68.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.84 | ||
| 1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.17 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.17 | |
| 1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.07 | 33.13 | 37.10 | |||
| 1919 | 28.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.69 | |||
| 1920 | ----- | z | 48.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1924 | ----- | z | 42.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1928 | ----- | z | 37.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1932 | ----- | z | 50.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1936 | ----- | z | 45.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.83 | 44.68 | 46.26 | |||
| 1938 | 41.45 | 46.50 | 51.19 | 62.43 | 69.74 | 82.30 | 87.65 | 84.48 | 77.67 | 60.77 | 42.27 | 44.26 | 62.56 | |||||||||||||
| 1939 | 39.77 | 41.36 | 53.77 | 64.77 | 73.65 | 78.77 | 86.25 | g | 86.87 | h | 74.07 | ----- | z | 48.00 | 40.94 | 57.23 | ||||||||||
| 1940 | 41.10 | 47.86 | 56.35 | 64.17 | 73.16 | 84.57 | 85.39 | 86.65 | 74.50 | 59.87 | 45.10 | 40.03 | 63.23 | |||||||||||||
| 1941 | 41.13 | 47.14 | 52.03 | 58.17 | 73.77 | 78.13 | 86.47 | a | 81.84 | 70.93 | 59.84 | 48.57 | 42.61 | 61.72 | ||||||||||||
| 1942 | 40.00 | 45.64 | 51.71 | 63.50 | 68.45 | 81.27 | 91.93 | a | 85.48 | 72.37 | 61.94 | ----- | z | 37.55 | 63.62 | |||||||||||
| 1943 | 38.00 | 42.21 | 54.29 | 64.70 | 73.48 | 77.03 | 87.03 | 85.19 | 75.43 | 63.16 | 44.97 | 42.77 | 62.36 | |||||||||||||
| 1944 | 37.52 | 43.10 | 50.84 | 58.10 | 68.26 | 71.63 | 81.61 | 78.81 | 71.17 | 59.35 | 46.90 | 34.74 | 58.50 | |||||||||||||
| 1945 | 34.90 | 40.96 | 46.10 | 53.93 | 66.94 | 73.07 | 85.45 | 78.10 | 70.67 | 56.42 | 40.10 | 30.94 | 56.46 | |||||||||||||
| 1946 | 34.94 | 40.14 | 50.35 | 66.67 | 73.19 | ----- | z | 83.77 | 84.71 | 75.67 | 63.48 | 45.80 | o | 42.74 | 61.57 | |||||||||||
| 1947 | 37.87 | 46.57 | 55.52 | 67.67 | 76.23 | 79.43 | g | 86.84 | 85.94 | 77.77 | 62.52 | 46.83 | 41.10 | 62.26 | ||||||||||||
| 1948 | 36.32 | 43.21 | ----- | z | 58.87 | 68.42 | 76.63 | 85.29 | 82.71 | 70.83 | 57.71 | 39.83 | 35.16 | 59.54 | ||||||||||||
| 1949 | 33.84 | 40.18 | 52.84 | 66.50 | 70.52 | 81.92 | e | 90.38 | g | 82.71 | 77.36 | h | 57.03 | 46.27 | 33.48 | 56.53 | ||||||||||
| 1950 | 30.58 | 44.57 | 48.90 | 61.20 | 68.45 | 74.07 | 86.94 | 82.97 | 74.83 | 63.42 | 50.47 | 41.19 | 60.63 | |||||||||||||
| 1951 | 38.52 | 43.43 | 52.84 | 63.53 | 72.74 | 83.17 | 88.90 | 85.77 | 77.77 | 61.77 | 47.70 | 39.26 | 62.95 | |||||||||||||
| 1952 | 38.94 | 44.83 | 48.52 | 62.10 | 71.65 | 74.60 | 86.81 | 89.13 | 76.87 | 63.39 | 46.27 | 40.48 | 61.96 | |||||||||||||
| 1953 | 42.81 | 42.82 | 53.55 | 64.27 | 66.26 | 78.07 | 91.81 | 85.35 | 75.57 | 63.58 | 51.53 | 39.45 | 62.92 | |||||||||||||
| 1954 | 37.52 | 47.00 | 50.13 | 66.33 | 77.58 | 79.63 | 89.68 | 83.06 | 76.90 | a | 61.81 | 49.43 | 37.42 | 63.04 | ||||||||||||
| 1955 | 36.81 | 41.50 | 53.30 | a | 58.33 | 68.87 | 78.93 | 86.94 | 88.74 | 73.85 | d | 61.77 | ----- | z | 40.67 | a | 62.70 | |||||||||
| 1956 | 40.94 | 38.45 | 52.07 | a | 60.60 | e | 77.53 | p | 81.87 | 86.19 | 83.13 | 76.77 | 61.19 | 44.47 | 35.55 | 60.11 | ||||||||||
| 1957 | 36.10 | 49.64 | 63.41 | d | 63.53 | 66.74 | 82.57 | 86.00 | 85.10 | ----- | z | ----- | z | ----- | z | ----- | z | 66.64 | ||||||||
| 1958 | ----- | z | ----- | z | 53.23 | 61.67 | 75.50 | a | 81.41 | a | 87.47 | a | 89.45 | 79.27 | 66.55 | 48.76 | a | 40.68 | 68.40 | |||||||
| 1959 | 44.48 | 47.07 | 57.68 | 67.10 | 71.23 | e | 85.63 | 93.29 | 86.71 | 76.43 | 65.39 | 47.57 | b | 42.06 | 65.39 | |||||||||||
| 1960 | 39.48 | 45.00 | 58.48 | 66.37 | 71.35 | 86.07 | 90.47 | a | 87.43 | a | 78.60 | 63.42 | 47.63 | k | 40.55 | 66.11 | ||||||||||
| 1961 | 37.35 | 47.71 | 54.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.67 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 38.89 | 44.90 | 53.11 | 62.38 | 70.64 | 79.00 | 86.90 | 84.64 | 74.64 | 61.87 | 47.34 | 39.40 | 61.38 | |||||||||||||
| S.D. | 7.35 | 4.61 | 4.15 | 3.83 | 3.41 | 4.38 | 3.41 | 3.55 | 3.38 | 4.00 | 6.33 | 5.42 | 2.80 | |||||||||||||
| SKEW | 1.55 | 1.35 | 0.38 | -0.61 | 0.22 | -0.21 | -0.12 | 0.44 | -0.89 | 0.55 | 1.53 | 1.10 | -1.06 | |||||||||||||
| MAX | 61.71 | 59.50 | 63.41 | 67.67 | 77.58 | 86.07 | 93.29 | 94.48 | 79.27 | 72.26 | 66.10 | 57.84 | 65.39 | |||||||||||||
| MIN | 26.61 | 38.45 | 44.94 | 53.93 | 64.81 | 71.00 | 79.61 | 78.10 | 65.37 | 55.06 | 39.13 | 30.19 | 55.21 | |||||||||||||
| NO YRS | 28 | 27 | 27 | 26 | 25 | 23 | 26 | 27 | 24 | 26 | 25 | 27 | 14 | |||||||||||||