YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.87 | 23.35 | 20.66 | a | 10.58 | 23.36 | h | |||
1911 | 7.80 | a | 4.82 | 25.35 | h | ----- | z | 32.75 | c | 43.41 | c | 45.15 | e | 41.48 | f | 38.41 | a | 35.71 | x | 13.22 | c | 0.58 | g | 26.51 | e | |
1912 | 4.00 | f | 2.69 | c | 13.67 | j | 26.65 | g | 29.39 | m | ----- | z | 45.03 | a | ----- | z | 27.72 | a | 23.36 | c | 11.73 | d | -7.57 | h | 22.11 | g |
1913 | -6.33 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -6.33 | k |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | 36.55 | 45.90 | 53.52 | 48.71 | 35.13 | 27.77 | 14.79 | b | 5.45 | b | 33.48 | d | ||||||
1937 | -15.00 | b | ----- | z | 15.48 | 24.93 | 32.23 | 38.20 | 48.39 | 43.97 | 36.93 | 27.55 | 21.20 | 12.97 | 26.08 | a | ||||||||||
1938 | 6.94 | 11.07 | 20.77 | 27.79 | a | 33.68 | 43.57 | 43.77 | 44.32 | 39.83 | 25.94 | 5.83 | 3.39 | 25.58 | ||||||||||||
1939 | 4.23 | -8.39 | 14.58 | 28.63 | 35.03 | 36.53 | 43.19 | 42.61 | 40.63 | 23.35 | 12.87 | 9.06 | 23.53 | |||||||||||||
1940 | 3.03 | 11.83 | 21.55 | 28.93 | 35.16 | 41.13 | 47.87 | a | 45.45 | 41.13 | 28.45 | 16.57 | 10.42 | 27.63 | ||||||||||||
1941 | 0.23 | 12.43 | 21.10 | 28.47 | 36.90 | 40.47 | 45.55 | 46.00 | 34.07 | 30.00 | 16.57 | 7.71 | 26.62 | |||||||||||||
1942 | -4.23 | -0.08 | d | 11.14 | c | 29.62 | a | 30.90 | 36.79 | a | 44.63 | a | 40.13 | 33.29 | b | 26.10 | 17.17 | a | 7.68 | 22.76 | ||||||
1943 | 5.29 | 9.61 | 15.13 | a | 31.07 | 33.19 | 38.53 | 46.00 | 48.58 | 32.90 | 25.35 | 14.53 | 9.03 | 25.77 | ||||||||||||
1944 | -7.87 | 4.43 | a | 17.71 | 25.03 | 34.97 | 37.67 | 41.48 | 41.61 | 32.43 | 27.77 | 20.10 | 6.68 | 23.50 | ||||||||||||
1945 | 6.94 | 13.00 | 12.81 | 21.93 | 34.87 | 39.20 | 45.39 | 47.94 | 33.57 | 28.03 | 16.23 | 6.55 | 25.54 | |||||||||||||
1946 | 0.23 | 8.18 | 21.84 | 30.63 | 32.13 | 37.93 | 47.58 | 45.65 | 34.27 | 28.35 | 16.93 | 17.61 | c | 26.78 | ||||||||||||
1947 | -0.65 | 11.82 | 18.97 | a | 28.17 | 36.61 | 38.70 | 45.71 | 47.03 | 37.33 | 32.00 | 14.72 | a | 5.55 | 26.33 | |||||||||||
1948 | -3.94 | 2.72 | 11.00 | 28.73 | 33.16 | 42.10 | 46.10 | 46.87 | 40.17 | 25.68 | 12.87 | 6.81 | 24.36 | |||||||||||||
1949 | -6.94 | 0.75 | 22.10 | 30.03 | 37.74 | 42.23 | 44.67 | a | 40.65 | 33.59 | a | 26.32 | 18.83 | 9.07 | b | 24.92 | ||||||||||
1950 | 0.60 | a | 11.25 | 20.06 | 27.63 | 30.90 | 36.30 | 45.19 | 42.48 | 40.63 | 28.23 | 20.47 | 15.30 | a | 26.59 | |||||||||||
1951 | 0.06 | 11.54 | 17.90 | 27.03 | 35.80 | a | 39.17 | 48.26 | 48.10 | 34.07 | 29.55 | 13.03 | a | 5.77 | a | 25.86 | ||||||||||
1952 | -1.29 | -0.96 | c | 11.59 | b | 28.50 | 37.00 | i | 43.47 | 46.35 | 46.86 | b | 37.97 | 22.81 | 8.77 | 4.26 | 22.57 | a | ||||||||
1953 | 11.04 | e | 7.21 | 19.35 | 23.48 | a | 31.55 | 42.36 | e | 49.97 | a | 46.81 | 36.73 | 27.97 | 21.07 | 4.61 | 26.85 | |||||||||
1954 | 11.55 | 15.29 | 17.74 | 27.50 | 35.94 | 40.50 | 51.35 | 45.23 | 41.34 | a | 27.97 | 19.71 | b | 2.65 | e | 28.06 | ||||||||||
1955 | -1.10 | -2.57 | 8.87 | 23.31 | a | 31.57 | j | 41.28 | e | 49.00 | b | 50.90 | 38.37 | 26.77 | a | 12.33 | 17.91 | h | 24.72 | b | ||||||
1956 | 13.50 | e | -4.69 | 13.32 | 28.07 | 36.45 | 43.08 | f | 46.65 | 44.27 | a | 35.30 | 25.83 | a | 8.27 | 1.81 | d | 22.62 | a | |||||||
1957 | -0.67 | d | 9.82 | 17.42 | 28.77 | 36.10 | 42.80 | 49.19 | 48.77 | 33.90 | 30.39 | 15.33 | 8.10 | a | 26.66 | |||||||||||
1958 | 1.03 | 18.32 | 17.74 | 24.67 | 37.48 | 42.63 | 44.94 | 47.48 | 38.33 | 23.52 | 14.13 | 14.77 | 27.09 | |||||||||||||
1959 | 4.94 | 11.93 | 18.65 | 26.20 | 34.71 | 45.10 | 46.90 | 47.77 | 38.27 | 28.00 | a | 16.97 | 10.06 | 27.46 | ||||||||||||
1960 | 7.23 | 1.90 | 19.39 | 28.87 | 34.23 | 42.87 | 49.03 | 45.35 | 42.03 | 29.97 | 18.10 | 5.97 | 27.08 | |||||||||||||
1961 | 0.35 | 14.96 | 20.35 | 28.33 | 37.71 | 45.73 | 50.65 | 52.19 | 37.63 | 28.65 | 16.53 | 5.16 | 28.19 | |||||||||||||
1962 | -5.97 | 13.57 | 11.94 | 31.47 | 37.71 | 44.30 | 47.55 | 44.73 | a | 36.46 | d | 28.68 | 21.43 | 8.16 | 26.67 | |||||||||||
1963 | -1.52 | 18.36 | 17.45 | 27.77 | 37.68 | 42.60 | 50.35 | 51.48 | 43.10 | 33.00 | 19.63 | 4.71 | 28.72 | |||||||||||||
1964 | -0.74 | -1.00 | 7.39 | 28.87 | 36.00 | 42.63 | 50.84 | 46.74 | 37.83 | ----- | z | 15.97 | 9.10 | 24.87 | a | |||||||||||
1965 | 8.90 | 4.89 | 5.87 | 30.27 | 35.90 | 42.20 | 49.52 | 46.19 | ----- | z | 27.06 | 24.47 | 11.13 | 26.04 | a | |||||||||||
1966 | 2.71 | 6.82 | 18.13 | 25.00 | 35.87 | 42.33 | 51.35 | 47.23 | 41.50 | 27.23 | 23.20 | 5.90 | 27.27 | |||||||||||||
1967 | 10.90 | 9.64 | 23.29 | 28.83 | 34.48 | 43.57 | 49.74 | 48.58 | 40.50 | 28.61 | 15.67 | 2.00 | 27.99 | |||||||||||||
1968 | -1.94 | 10.38 | 17.13 | 24.23 | 34.45 | 41.83 | 49.35 | 45.61 | 35.13 | 28.84 | 14.23 | 6.48 | 25.48 | |||||||||||||
1969 | 13.58 | 9.61 | 10.45 | 31.03 | 39.32 | 42.93 | 50.74 | 50.10 | 43.10 | 27.35 | 16.63 | 11.06 | 28.83 | |||||||||||||
1970 | 9.16 | 14.14 | 19.16 | 24.47 | 35.39 | 43.73 | 49.39 | 49.52 | 36.60 | 24.61 | 23.80 | 10.61 | 28.38 | |||||||||||||
1971 | 12.03 | 9.61 | 16.52 | 28.53 | 35.55 | 42.57 | 49.39 | 50.90 | 34.60 | 27.61 | 19.67 | 5.29 | 27.69 | |||||||||||||
1972 | 8.68 | 14.24 | 25.87 | 29.30 | 35.39 | 46.70 | 48.16 | 49.19 | 40.90 | 35.32 | 20.23 | 0.10 | 29.51 | |||||||||||||
1973 | -4.23 | 1.39 | 18.71 | 26.27 | 35.06 | ----- | z | 49.68 | 49.94 | 38.63 | 29.84 | 17.47 | 5.87 | 24.42 | a | |||||||||||
1974 | 1.68 | 0.82 | 23.26 | 28.13 | 34.81 | 44.63 | 51.23 | 44.26 | 34.50 | 31.06 | 20.90 | 4.32 | 26.63 | |||||||||||||
1975 | 4.13 | 8.64 | 19.55 | 25.47 | 34.77 | 40.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.24 | f | ||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.77 | 47.90 | 42.19 | 35.90 | 17.84 | ----- | z | ----- | z | 36.52 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.30 | 7.50 | 16.96 | 27.59 | 35.11 | 41.61 | 47.78 | 46.56 | 37.23 | 27.47 | 16.73 | 7.48 | 26.59 | |||||||||||||
S.D. | 6.51 | 6.40 | 4.61 | 2.34 | 1.96 | 2.67 | 2.63 | 2.96 | 3.35 | 3.05 | 4.13 | 3.78 | 1.61 | |||||||||||||
SKEW | -0.19 | -0.47 | -0.55 | -0.53 | -0.34 | -0.31 | -0.18 | -0.24 | -0.30 | -0.38 | -0.41 | 0.58 | -0.56 | |||||||||||||
MAX | 13.58 | 18.36 | 25.87 | 31.47 | 39.32 | 46.70 | 53.52 | 52.19 | 43.10 | 35.32 | 24.47 | 17.61 | 29.51 | |||||||||||||
MIN | -15.00 | -8.39 | 5.87 | 21.93 | 30.90 | 36.30 | 41.48 | 40.13 | 27.72 | 17.84 | 5.83 | 0.10 | 22.76 | |||||||||||||
YRS | 41 | 40 | 39 | 39 | 39 | 40 | 42 | 40 | 42 | 41 | 42 | 39 | 31 |