| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1893 | 8.00 | -2.00 | f | 15.00 | b | 25.00 | a | 32.00 | d | 38.00 | f | 41.00 | b | 44.00 | 36.00 | g | 25.00 | h | 16.00 | l | 20.00 | o | -2.00 | |||
| 1894 | 14.00 | v | 7.00 | s | 14.00 | h | 20.00 | m | 24.00 | d | 29.00 | h | 32.00 | m | 41.00 | m | 36.00 | m | 31.00 | q | 12.00 | g | 5.00 | a | 5.00 | |
| 1895 | 1.00 | a | 9.00 | 9.00 | 23.00 | 10.00 | f | 34.00 | a | 40.00 | a | 41.00 | 30.00 | 32.00 | 10.00 | 8.00 | 1.00 | |||||||||
| 1896 | 13.00 | 26.00 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.00 | ||
| 1897 | ----- | z | 10.00 | ----- | z | 28.00 | 29.00 | 38.00 | 39.00 | 39.00 | 34.00 | 25.00 | 7.00 | ----- | z | 7.00 | ||||||||||
| 1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 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 | ----- | 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 | 43.00 | 41.00 | 29.00 | 18.00 | 11.00 | a | 11.00 | |||||
| 1939 | 13.00 | 10.00 | 9.00 | g | 27.00 | 29.00 | 35.00 | 45.00 | 41.00 | a | 32.00 | 27.00 | a | 20.00 | 15.00 | 9.00 | ||||||||||
| 1940 | 17.00 | 19.00 | 24.00 | 30.00 | 30.00 | 36.00 | 45.00 | 43.00 | 40.00 | l | 33.00 | f | 18.00 | 7.00 | 7.00 | |||||||||||
| 1941 | 12.00 | 24.00 | 18.00 | 26.00 | ----- | z | ----- | z | 42.00 | a | 44.00 | a | 30.00 | a | 27.00 | 16.00 | 4.00 | 4.00 | ||||||||
| 1942 | -11.00 | 9.00 | 15.00 | 27.00 | a | 26.00 | 35.00 | 45.00 | 35.00 | 29.00 | a | 29.00 | 18.00 | 12.00 | -11.00 | |||||||||||
| 1943 | -11.00 | 17.00 | a | 15.00 | a | 29.00 | 26.00 | 38.00 | 39.00 | 40.00 | 39.00 | 25.00 | 20.00 | 11.00 | a | -11.00 | ||||||||||
| 1944 | 6.00 | 10.00 | 9.00 | 24.00 | 29.00 | 37.00 | 38.00 | 40.00 | 33.00 | 33.00 | 14.00 | 6.00 | 6.00 | |||||||||||||
| 1945 | 6.00 | 15.00 | 9.00 | 22.00 | 35.00 | 34.00 | b | 44.00 | 39.00 | 25.00 | 25.00 | 15.00 | 3.00 | 3.00 | ||||||||||||
| 1946 | 11.00 | 10.00 | 20.00 | 26.00 | a | 28.00 | 39.00 | 43.00 | 30.00 | 30.00 | 16.00 | 12.00 | 6.00 | 6.00 | ||||||||||||
| 1947 | -3.00 | 15.00 | 20.00 | 26.00 | 31.00 | 35.00 | 43.00 | 39.00 | 29.00 | 26.00 | 14.00 | 15.00 | -3.00 | |||||||||||||
| 1948 | 10.00 | -5.00 | 11.00 | 24.00 | 26.00 | 43.00 | 39.00 | a | 41.00 | 33.00 | 21.00 | 17.00 | -2.00 | -5.00 | ||||||||||||
| 1949 | -14.00 | -3.00 | 19.00 | 22.00 | 28.00 | 36.00 | 43.00 | 42.00 | 33.00 | a | 18.00 | 22.00 | 7.00 | -14.00 | ||||||||||||
| 1950 | -11.00 | -8.00 | 20.00 | 23.00 | 26.00 | 37.00 | a | 42.00 | 43.00 | 28.00 | a | 26.00 | a | 20.00 | 20.00 | -11.00 | ||||||||||
| 1951 | -10.00 | 11.00 | 8.00 | 17.00 | 33.00 | 29.00 | 41.00 | a | 38.00 | 33.00 | 22.00 | 12.00 | 5.00 | -10.00 | ||||||||||||
| 1952 | 5.00 | 1.00 | 12.00 | a | 23.00 | 33.00 | 36.00 | 38.00 | 40.00 | 33.00 | 29.00 | 3.00 | 4.00 | 1.00 | ||||||||||||
| 1953 | 25.00 | 14.00 | 19.00 | 18.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.00 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 3.72 | 9.29 | 15.19 | 24.44 | 29.06 | 36.13 | 41.59 | 40.11 | 32.00 | 25.62 | 15.06 | 8.06 | -4.45 | |||||||||||||
| S.D. | 11.37 | 8.61 | 5.02 | 3.43 | 3.11 | 3.02 | 2.45 | 3.41 | 3.95 | 4.62 | 5.06 | 5.37 | 7.46 | |||||||||||||
| SKEW | -0.13 | -0.55 | -0.02 | -0.54 | 0.27 | -0.07 | -0.03 | -1.50 | 0.67 | -0.49 | -0.84 | 0.47 | 0.25 | |||||||||||||
| MAX | 25.00 | 24.00 | 24.00 | 30.00 | 35.00 | 43.00 | 45.00 | 44.00 | 41.00 | 33.00 | 22.00 | 20.00 | 6.00 | |||||||||||||
| MIN | -14.00 | -8.00 | 8.00 | 17.00 | 24.00 | 29.00 | 38.00 | 30.00 | 25.00 | 16.00 | 3.00 | -2.00 | -14.00 | |||||||||||||
| NO YRS | 18 | 17 | 16 | 18 | 16 | 15 | 17 | 18 | 16 | 16 | 17 | 17 | 11 | |||||||||||||