| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1910 | ----- | z | ----- | z | ----- | z | 66.90 | a | 72.13 | 81.43 | 92.84 | 87.28 | b | 77.75 | b | 63.83 | s | 45.39 | b | 36.16 | 69.98 | |||||
| 1911 | 34.39 | 34.18 | 52.87 | 57.00 | 60.81 | j | 74.45 | j | 88.33 | a | 84.64 | c | 72.70 | 60.48 | 43.32 | b | 36.93 | c | 56.48 | |||||||
| 1912 | 31.80 | a | 38.28 | 46.70 | a | 60.79 | a | 68.50 | a | ----- | z | 85.12 | f | 81.55 | b | 70.44 | c | 59.24 | b | 48.31 | a | 36.00 | 54.16 | |||
| 1913 | 30.83 | b | 37.24 | c | 40.39 | 58.04 | b | 69.76 | b | 74.53 | ----- | z | 88.13 | 77.77 | 57.84 | 46.17 | 36.42 | 56.10 | ||||||||
| 1914 | 37.23 | 37.50 | 53.94 | 60.67 | 74.29 | 73.53 | 89.58 | 89.42 | 74.27 | 65.35 | 53.83 | 32.26 | 61.82 | |||||||||||||
| 1915 | 29.81 | 42.86 | 53.81 | ----- | z | 63.87 | p | 73.96 | e | 83.50 | e | 96.23 | ----- | z | ----- | z | ----- | z | ----- | z | 63.36 | |||||
| 1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1920 | ----- | z | ----- | 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 | ----- | 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 | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1944 | ----- | z | ----- | z | ----- | z | ----- | z | 74.39 | 75.80 | 87.84 | 87.13 | 80.17 | 72.81 | 43.63 | 37.00 | h | 74.54 | ||||||||
| 1945 | 34.45 | 41.96 | 47.61 | 56.60 | 69.48 | 73.43 | 92.48 | 90.52 | 73.43 | 67.94 | 42.93 | 35.55 | 60.53 | |||||||||||||
| 1946 | 36.94 | 38.39 | 50.16 | 64.73 | 71.10 | 77.33 | 89.74 | 89.65 | 73.93 | 54.48 | 43.80 | 40.65 | 60.91 | |||||||||||||
| 1947 | 32.10 | 44.32 | 55.23 | 61.03 | 74.74 | 72.27 | 91.42 | 87.81 | 77.20 | 63.29 | 42.00 | 37.52 | 61.58 | |||||||||||||
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.77 | 77.47 | 65.90 | 43.27 | 29.45 | 60.57 | ||||||
| 1949 | 19.13 | 35.29 | 49.45 | 67.73 | 74.97 | a | 81.17 | 91.74 | 91.71 | 82.17 | 59.00 | 53.97 | 36.26 | 61.88 | ||||||||||||
| 1950 | 28.55 | 38.04 | 44.77 | 59.60 | 68.45 | 77.33 | 89.23 | 90.32 | 78.93 | 65.26 | 48.23 | 39.03 | 60.65 | |||||||||||||
| 1951 | 32.81 | 39.39 | 44.45 | 65.70 | 70.35 | 76.13 | 93.29 | 88.10 | 80.10 | 57.65 | 44.53 | 32.90 | 60.45 | |||||||||||||
| 1952 | 31.35 | 33.90 | 43.39 | 63.47 | 72.29 | 77.67 | 89.97 | 89.42 | 84.77 | 74.52 | 45.13 | 35.58 | 61.79 | |||||||||||||
| 1953 | 41.74 | 43.00 | 51.52 | 58.07 | 64.74 | 72.87 | 92.81 | 90.45 | ----- | z | ----- | z | 44.77 | q | 36.35 | k | 64.40 | |||||||||
| 1954 | 39.22 | d | 44.43 | 49.10 | 60.80 | 74.10 | a | 74.53 | 92.23 | 84.77 | 78.20 | 66.12 | g | 56.53 | ----- | z | 65.39 | |||||||||
| 1955 | 30.55 | i | 34.14 | f | 38.80 | a | 52.53 | 65.71 | n | 80.23 | 86.16 | 93.77 | 80.10 | 65.65 | ----- | z | ----- | z | 71.04 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 32.88 | 39.20 | 48.15 | 60.91 | 71.38 | 76.15 | 90.08 | 88.76 | 77.46 | 63.53 | 46.74 | 35.75 | 61.20 | |||||||||||||
| S.D. | 5.44 | 3.59 | 5.03 | 4.21 | 3.02 | 2.99 | 2.78 | 3.39 | 3.75 | 5.82 | 4.56 | 2.89 | 0.62 | |||||||||||||
| SKEW | -0.80 | 0.09 | -0.35 | -0.06 | -0.57 | 0.54 | -0.90 | 0.10 | -0.05 | 0.37 | 1.06 | -0.55 | -0.31 | |||||||||||||
| MAX | 41.74 | 44.43 | 55.23 | 67.73 | 74.97 | 81.43 | 93.29 | 96.23 | 84.77 | 74.52 | 56.53 | 40.65 | 61.88 | |||||||||||||
| MIN | 19.13 | 33.90 | 38.80 | 52.53 | 64.74 | 72.27 | 83.50 | 81.55 | 70.44 | 54.48 | 42.00 | 29.45 | 60.45 | |||||||||||||
| NO YRS | 14 | 14 | 15 | 15 | 14 | 15 | 15 | 18 | 16 | 14 | 15 | 13 | 8 | |||||||||||||