| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.13 | 38.45 | 43.29 | |||
| 1917 | 34.22 | v | 40.07 | 45.77 | 61.37 | 70.48 | 81.27 | 96.61 | 94.10 | 83.37 | 70.10 | 54.40 | 50.39 | 67.99 | ||||||||||||
| 1918 | 42.03 | 45.86 | 58.13 | 65.77 | 72.90 | 90.30 | 91.77 | 85.81 | 81.00 | 66.71 | 50.13 | 35.65 | 65.50 | |||||||||||||
| 1919 | 42.19 | 44.04 | 56.23 | 69.00 | 76.77 | 80.60 | o | 95.29 | 92.65 | 78.53 | 58.74 | 46.37 | 30.26 | 62.73 | ||||||||||||
| 1920 | 34.19 | 46.10 | 54.35 | 61.70 | 72.16 | 81.37 | 93.26 | 91.00 | 77.77 | 62.06 | 48.93 | 41.45 | 63.70 | |||||||||||||
| 1921 | 40.48 | 41.86 | 57.77 | 62.83 | 73.00 | 83.97 | 93.10 | 91.65 | 74.10 | 69.65 | 61.00 | 44.61 | 66.17 | |||||||||||||
| 1922 | 30.00 | 40.86 | 52.16 | 63.43 | 73.55 | 88.60 | 95.13 | 94.16 | 87.03 | 74.00 | 50.13 | 41.52 | 65.88 | |||||||||||||
| 1923 | 45.81 | 42.25 | 58.03 | 68.00 | 77.39 | 81.60 | 96.71 | 93.42 | 87.17 | 67.13 | 57.27 | 41.42 | 68.02 | |||||||||||||
| 1924 | 31.03 | 51.10 | 53.77 | 66.93 | 83.23 | 85.13 | 92.94 | 88.06 | 79.77 | 66.29 | 51.50 | 30.53 | a | 65.02 | ||||||||||||
| 1925 | 35.43 | a | 49.50 | 59.39 | 67.90 | 76.23 | 82.83 | 96.71 | 90.42 | 80.21 | a | 68.36 | i | 50.24 | m | 38.71 | 67.73 | |||||||||
| 1926 | 36.35 | 51.32 | 62.16 | 72.90 | 77.16 | 92.46 | f | 97.43 | h | 90.78 | h | 74.63 | 70.16 | 55.09 | h | 37.32 | c | 60.25 | ||||||||
| 1927 | 34.40 | f | 48.70 | e | 54.93 | b | 63.34 | a | 70.97 | 84.75 | b | 93.97 | 89.29 | 75.30 | 69.87 | h | 51.81 | i | 35.00 | h | 72.66 | |||||
| 1928 | 33.84 | 41.10 | 57.52 | 62.37 | 82.84 | 82.10 | 94.81 | 91.00 | 83.30 | 67.81 | 50.03 | 36.00 | 65.23 | |||||||||||||
| 1929 | 30.39 | 34.18 | 55.29 | 60.37 | 75.52 | 78.48 | e | 95.87 | 96.65 | 75.13 | 70.13 | 51.27 | 45.10 | 64.03 | ||||||||||||
| 1930 | 25.03 | 47.18 | 58.23 | 70.70 | 72.23 | 82.50 | 94.31 | e | 91.87 | 78.43 | 64.58 | 48.33 | 32.74 | 63.84 | ||||||||||||
| 1931 | 35.87 | 44.25 | 57.42 | 66.90 | 80.03 | 86.30 | 96.04 | f | 94.48 | 80.50 | 68.68 | 48.00 | 33.61 | 63.28 | ||||||||||||
| 1932 | 34.65 | 39.00 | 52.26 | 66.33 | 72.81 | 85.00 | 91.65 | 90.39 | 83.27 | 65.71 | 50.73 | 34.42 | 63.85 | |||||||||||||
| 1933 | 38.00 | 31.93 | 53.19 | 65.57 | 69.13 | 87.30 | 96.06 | 91.10 | 78.10 | 73.26 | 53.33 | 47.32 | 65.36 | |||||||||||||
| 1934 | 46.45 | 53.79 | 65.35 | 75.37 | 83.23 | 83.43 | 95.03 | 94.32 | 79.43 | 67.94 | 54.30 | 39.29 | 69.83 | |||||||||||||
| 1935 | 37.39 | 42.54 | 53.32 | 62.63 | 75.00 | 84.97 | a | 93.39 | 92.52 | 86.13 | 68.61 | 43.07 | 32.06 | 64.30 | ||||||||||||
| 1936 | 37.77 | 38.17 | 53.58 | 69.50 | 80.27 | a | 85.63 | 96.65 | 94.65 | e | 80.67 | 72.03 | 48.50 | 41.03 | 66.54 | |||||||||||
| 1937 | 22.13 | 39.36 | 54.29 | 60.77 | 74.97 | 78.37 | 95.61 | 88.97 | 81.57 | 67.77 | 52.03 | 44.42 | 63.35 | |||||||||||||
| 1938 | 40.80 | a | 47.96 | 52.00 | 64.30 | 71.23 | 83.79 | a | 90.39 | 88.20 | a | 77.13 | 65.71 | 47.07 | 40.68 | 64.10 | ||||||||||
| 1939 | 41.58 | 42.21 | 59.45 | 70.47 | 78.61 | 79.77 | 92.55 | 93.19 | 79.27 | 65.26 | 51.47 | 45.74 | 66.63 | |||||||||||||
| 1940 | 39.07 | a | 47.37 | b | 58.68 | 65.27 | 80.39 | 91.10 | 94.13 | 94.55 | 76.14 | a | 66.13 | 44.83 | 43.32 | 66.75 | ||||||||||
| 1941 | 38.94 | 48.89 | 61.55 | 66.14 | a | 75.39 | 81.50 | 96.39 | 89.45 | 76.37 | 61.03 | 53.73 | 44.90 | a | 66.19 | |||||||||||
| 1942 | 28.30 | a | 43.82 | 55.39 | 69.07 | 70.81 | 80.63 | 98.10 | a | 94.83 | a | 84.52 | a | 71.31 | b | 49.20 | 39.77 | a | 65.48 | |||||||
| 1943 | 37.20 | a | 45.15 | a | 53.71 | 70.80 | 71.71 | 79.69 | a | 94.48 | b | 91.55 | 87.33 | 67.10 | a | 51.10 | a | 41.67 | a | 65.96 | ||||||
| 1944 | 32.68 | 45.17 | 54.90 | a | 64.07 | 78.13 | a | 78.93 | 90.97 | 92.45 | 81.20 | 69.52 | 44.17 | 32.94 | 63.76 | |||||||||||
| 1945 | 34.94 | 43.50 | 48.10 | 58.87 | 72.42 | 79.47 | 96.84 | 94.06 | 78.93 | 70.42 | 50.10 | 39.52 | 63.93 | |||||||||||||
| 1946 | 39.42 | 43.89 | 58.48 | 70.07 | 77.39 | 84.57 | 96.39 | 94.58 | 79.77 | 62.87 | 47.53 | 45.74 | 66.72 | |||||||||||||
| 1947 | 35.29 | 50.39 | 61.52 | 66.87 | 83.35 | 78.90 | 96.77 | 92.29 | 83.30 | 69.81 | 47.80 | 41.29 | 67.30 | |||||||||||||
| 1948 | 44.58 | 47.21 | 52.16 | 63.93 | 73.00 | 86.60 | 91.23 | 90.48 | f | 80.38 | f | 69.00 | 49.13 | 37.50 | g | 64.09 | ||||||||||
| 1949 | 20.07 | p | 45.79 | 58.90 | a | 73.40 | 79.39 | 86.13 | 94.77 | 93.34 | b | 84.97 | 62.35 | 52.70 | ----- | z | 73.17 | |||||||||
| 1950 | ----- | z | ----- | z | ----- | z | ----- | z | 77.65 | h | 81.53 | 91.23 | 91.03 | 79.70 | 70.94 | 53.40 | 43.77 | 73.09 | ||||||||
| 1951 | 39.94 | 45.68 | 53.23 | 69.93 | 74.19 | 80.37 | 92.97 | 88.32 | 81.10 | 61.87 | 47.90 | 37.29 | 64.40 | |||||||||||||
| 1952 | 33.71 | 38.86 | 50.00 | 70.33 | 74.84 | 79.60 | 90.94 | 90.17 | a | 85.06 | l | 71.48 | 47.90 | 40.19 | 62.55 | |||||||||||
| 1953 | 50.00 | 49.64 | 58.32 | 63.43 | 68.16 | 74.60 | 91.42 | 86.39 | 81.63 | 67.06 | 54.43 | 40.48 | 65.47 | |||||||||||||
| 1954 | 45.65 | 50.39 | 55.03 | 67.93 | 77.39 | 76.03 | 91.39 | 84.67 | g | 76.90 | 64.61 | 53.63 | 38.84 | 63.44 | ||||||||||||
| 1955 | 31.55 | 39.25 | 51.06 | 59.33 | 70.47 | a | 82.17 | 86.06 | 90.23 | 74.52 | g | 67.10 | 44.36 | e | 44.74 | 60.57 | ||||||||||
| 1956 | 40.97 | 39.86 | 59.58 | 70.67 | 77.81 | 83.73 | 93.94 | 88.65 | 82.87 | 63.45 | 46.87 | 39.29 | 65.64 | |||||||||||||
| 1957 | 29.03 | 42.36 | 57.13 | 66.20 | 74.77 | 84.93 | 91.52 | 88.87 | 84.07 | 64.03 | 50.73 | 42.77 | 64.70 | |||||||||||||
| 1958 | 39.55 | 51.89 | 55.81 | 63.93 | 83.06 | 83.20 | 92.74 | 93.23 | 80.20 | 71.77 | 51.80 | 44.61 | 67.65 | |||||||||||||
| 1959 | 45.23 | 49.96 | 58.48 | 70.97 | a | 71.48 | 87.69 | a | 95.10 | 88.48 | 75.93 | 67.29 | 52.23 | 40.32 | 66.93 | |||||||||||
| 1960 | 33.45 | 44.86 | 57.61 | 67.93 | 72.77 | 88.90 | 97.48 | 87.45 | 84.63 | 67.52 | 51.97 | 39.13 | 66.14 | |||||||||||||
| 1961 | 38.87 | 51.61 | 59.13 | 67.67 | 78.00 | 92.70 | 96.13 | 95.16 | 76.53 | 64.97 | 50.47 | 40.65 | 67.66 | |||||||||||||
| 1962 | 31.29 | 40.21 | 56.06 | 74.03 | 73.06 | 85.60 | 91.74 | 90.16 | 83.13 | 66.68 | 52.97 | 42.13 | 65.59 | |||||||||||||
| 1963 | 35.52 | 54.75 | 60.19 | 63.20 | 78.10 | 81.47 | 90.10 | 91.42 | 84.33 | 70.13 | 51.60 | 36.10 | 66.41 | |||||||||||||
| 1964 | 36.55 | 41.83 | 53.35 | 66.10 | 75.39 | 80.70 | 94.16 | 88.74 | 79.33 | 71.16 | 51.33 | 45.42 | 65.34 | |||||||||||||
| 1965 | 40.52 | 51.71 | 58.94 | 69.27 | 74.74 | 84.90 | 92.16 | 88.29 | 75.73 | 72.94 | 56.03 | 41.23 | 67.20 | |||||||||||||
| 1966 | 46.06 | 49.57 | 60.71 | 70.17 | 81.29 | 83.13 | 92.58 | 90.65 | 84.93 | 67.77 | 54.27 | 41.06 | 68.52 | |||||||||||||
| 1967 | 46.48 | 53.57 | 58.45 | 60.03 | 77.32 | 83.70 | 95.58 | 95.77 | 86.13 | 67.39 | 53.70 | 40.29 | 68.20 | |||||||||||||
| 1968 | 41.10 | 53.62 | 63.42 | 66.87 | 76.48 | 86.33 | 95.45 | 84.39 | 80.27 | 67.26 | 50.17 | 43.23 | 67.38 | |||||||||||||
| 1969 | 39.74 | 43.54 | 58.90 | 70.93 | 81.19 | 84.03 | 92.45 | 91.97 | 82.03 | 64.13 | 53.53 | 43.55 | 67.17 | |||||||||||||
| 1970 | 45.23 | 55.32 | 58.00 | 62.13 | 77.58 | 87.17 | 94.00 | 95.58 | 78.10 | 64.87 | 53.63 | 40.74 | 67.70 | |||||||||||||
| 1971 | 42.52 | 51.93 | 55.52 | 68.77 | 79.39 | 81.73 | 94.06 | 96.68 | 79.10 | 67.71 | 51.43 | 39.71 | 67.38 | |||||||||||||
| 1972 | 39.35 | 46.24 | 62.06 | 67.00 | 80.94 | 86.80 | 92.45 | 93.45 | 77.83 | 74.53 | l | ----- | z | ----- | z | 71.79 | ||||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 37.77 | 45.66 | 56.53 | 66.61 | 76.00 | 83.44 | 93.84 | 91.51 | 80.54 | 67.43 | 50.77 | 40.33 | 65.97 | |||||||||||||
| S.D. | 5.84 | 5.28 | 3.79 | 3.93 | 3.96 | 3.64 | 2.33 | 2.86 | 3.52 | 3.31 | 3.39 | 4.29 | 1.53 | |||||||||||||
| SKEW | -0.32 | -0.21 | -0.32 | 0.00 | 0.17 | 0.13 | -0.59 | -0.25 | 0.16 | -0.28 | 0.13 | -0.43 | 0.23 | |||||||||||||
| MAX | 50.00 | 55.32 | 65.35 | 75.37 | 83.35 | 92.70 | 98.10 | 96.68 | 87.33 | 74.00 | 61.00 | 50.39 | 69.83 | |||||||||||||
| MIN | 22.13 | 31.93 | 45.77 | 58.87 | 68.16 | 74.60 | 86.06 | 84.39 | 74.10 | 58.74 | 43.07 | 30.26 | 63.35 | |||||||||||||
| NO YRS | 52 | 55 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 53 | 53 | 53 | 43 | |||||||||||||