| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1910 | ----- | z | ----- | z | ----- | z | 37.69 | a | 41.81 | 48.97 | 59.16 | 51.55 | b | 45.71 | b | 31.42 | s | 30.22 | c | 22.55 | 42.21 | |||||
| 1911 | 15.71 | 12.00 | 26.81 | 32.93 | 38.04 | h | 50.05 | i | 57.35 | 52.50 | c | 45.62 | a | 36.48 | 24.46 | b | 20.86 | c | 32.47 | |||||||
| 1912 | 13.07 | a | 22.21 | 21.39 | 32.69 | a | 42.60 | a | 50.80 | e | 54.52 | f | 53.28 | b | 43.26 | c | 35.31 | b | 30.30 | 18.03 | 32.99 | |||||
| 1913 | 10.69 | b | 11.27 | b | 21.74 | 35.68 | b | 44.24 | b | 51.63 | ----- | z | 57.61 | 47.63 | 35.35 | 31.70 | 19.48 | 33.37 | ||||||||
| 1914 | 21.32 | 19.71 | 30.71 | 37.40 | 45.65 | 48.90 | 60.06 | 57.90 | 45.20 | 40.94 | 28.57 | 12.61 | 37.41 | |||||||||||||
| 1915 | 13.52 | 28.29 | 35.39 | ----- | z | 45.61 | h | 45.00 | d | 53.08 | f | 61.71 | ----- | z | ----- | z | ----- | z | ----- | z | 36.78 | |||||
| 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 | 45.16 | 47.57 | 55.42 | 53.65 | 48.86 | a | 41.90 | a | 30.20 | 19.22 | h | 46.11 | ||||||
| 1945 | 19.97 | 26.75 | 29.03 | 33.83 | 43.06 | 43.47 | o | 57.35 | 55.68 | 43.00 | 38.87 | 28.00 | 21.10 | 36.06 | ||||||||||||
| 1946 | 14.97 | 17.00 | 28.58 | 36.80 | 42.42 | 48.73 | 57.35 | 55.16 | 41.67 | 30.45 | 26.10 | 24.32 | 35.30 | |||||||||||||
| 1947 | 10.81 | 23.68 | 30.77 | 35.43 | 47.71 | 47.27 | 59.55 | 55.06 | 46.50 | 41.39 | 27.27 | 22.13 | 37.30 | |||||||||||||
| 1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.35 | 46.30 | 34.84 | 24.17 | 7.77 | 33.49 | ||||||
| 1949 | -3.32 | 18.86 | 31.16 | 38.20 | 47.03 | a | 48.50 | 55.71 | 56.26 | 46.97 | 30.74 | 28.47 | 16.68 | 34.60 | ||||||||||||
| 1950 | 9.03 | 16.39 | 24.19 | 30.87 | 36.55 | 45.13 | 54.87 | 57.00 | 49.20 | 41.35 | 31.40 | 29.19 | 35.43 | |||||||||||||
| 1951 | 18.32 | 22.14 | 23.97 | 36.77 | 42.77 | 46.23 | 57.19 | 53.39 | 46.50 | 38.00 | 27.17 | 18.42 | 35.91 | |||||||||||||
| 1952 | 16.32 | 12.76 | 23.81 | 36.50 | 44.16 | 48.80 | 55.45 | 57.45 | 49.30 | 40.58 | 26.40 | 23.55 | 36.26 | |||||||||||||
| 1953 | 29.84 | 26.43 | 29.16 | 33.47 | 38.26 | 45.37 | 58.42 | 52.81 | ----- | z | ----- | z | 31.15 | q | 19.50 | k | 39.22 | |||||||||
| 1954 | 24.07 | d | 27.54 | 26.42 | 34.83 | 43.57 | a | 45.43 | 55.97 | 52.16 | 45.73 | 34.46 | g | 31.27 | ----- | z | 38.70 | |||||||||
| 1955 | 10.68 | i | 14.55 | f | 19.90 | a | 32.23 | 39.35 | n | 51.40 | 55.61 | 56.74 | 46.53 | 36.71 | ----- | z | ----- | z | 42.73 | |||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 15.31 | 20.36 | 26.87 | 35.02 | 43.21 | 47.98 | 57.11 | 55.24 | 46.12 | 37.35 | 28.38 | 19.75 | 36.03 | |||||||||||||
| S.D. | 7.81 | 5.88 | 4.34 | 2.25 | 3.02 | 2.24 | 1.69 | 2.58 | 2.16 | 3.78 | 2.45 | 5.40 | 1.04 | |||||||||||||
| SKEW | -0.47 | -0.19 | 0.12 | -0.27 | -0.73 | 0.15 | 0.39 | 0.68 | -0.39 | -0.51 | -0.25 | -0.60 | 0.20 | |||||||||||||
| MAX | 29.84 | 28.29 | 35.39 | 38.20 | 47.71 | 51.63 | 60.06 | 61.71 | 49.30 | 41.90 | 31.70 | 29.19 | 37.41 | |||||||||||||
| MIN | -3.32 | 11.27 | 19.90 | 30.87 | 36.55 | 45.00 | 54.87 | 51.55 | 41.67 | 30.45 | 24.17 | 7.77 | 34.60 | |||||||||||||
| NO YRS | 14 | 14 | 15 | 15 | 14 | 15 | 14 | 18 | 16 | 14 | 15 | 13 | 7 | |||||||||||||