YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.58 | 46.79 | a | 31.84 | 10.14 | b | 20.10 | b | 33.89 | g | ||
1897 | 5.35 | 5.15 | b | 16.28 | b | 35.17 | a | 45.84 | 54.45 | a | 62.84 | 56.55 | 56.27 | 40.83 | a | 18.41 | a | 12.04 | c | 34.10 | ||||||
1898 | 15.71 | 14.42 | b | 21.40 | a | 35.70 | 46.00 | 58.10 | 60.58 | 57.94 | 49.70 | 34.44 | f | 13.07 | 6.23 | a | 34.44 | a | ||||||||
1899 | 6.94 | -3.22 | a | 4.48 | ----- | z | 46.58 | 55.40 | ----- | z | 61.79 | l | 47.03 | 35.94 | 27.80 | 9.26 | 25.58 | c | ||||||||
1900 | 13.58 | 5.11 | 18.19 | 40.83 | 49.00 | 57.03 | 60.52 | 65.23 | 47.37 | 37.29 | 13.47 | 15.83 | a | 35.29 | ||||||||||||
1901 | 12.06 | 5.71 | 20.35 | 38.83 | a | 50.90 | 58.23 | 67.19 | 59.61 | 47.23 | 37.47 | a | 22.63 | 11.10 | 35.94 | |||||||||||
1902 | 11.06 | 9.57 | 23.42 | 32.77 | 48.10 | 52.00 | a | 60.23 | 57.61 | 44.57 | 34.97 | 24.20 | 5.03 | 33.63 | ||||||||||||
1903 | 8.81 | 3.64 | 21.90 | 35.77 | 48.13 | 54.97 | 61.74 | 59.58 | 47.60 | 39.13 | 22.27 | 8.97 | 34.38 | |||||||||||||
1904 | 4.90 | a | 2.59 | 22.16 | 31.28 | a | 45.63 | a | 51.27 | 59.65 | 59.06 | 50.03 | 42.68 | 25.50 | 9.52 | 33.69 | ||||||||||
1905 | 0.19 | 0.25 | 28.32 | 34.13 | 43.29 | 54.37 | 58.26 | 61.39 | 51.83 | 35.00 | 27.10 | 15.74 | 34.16 | |||||||||||||
1906 | 9.71 | 11.14 | 13.90 | 38.83 | 47.42 | 54.50 | 58.06 | 59.58 | 51.43 | 37.42 | 23.93 | 12.93 | a | 34.91 | ||||||||||||
1907 | -3.03 | 12.75 | 27.19 | 27.45 | a | 39.10 | 53.70 | 60.19 | 58.67 | a | 46.47 | 32.81 | 23.93 | 14.42 | 32.80 | |||||||||||
1908 | 14.16 | 14.52 | 22.26 | 34.76 | a | 43.74 | 55.57 | 61.39 | 56.23 | a | 54.60 | 37.32 | 25.03 | 12.93 | a | 36.04 | ||||||||||
1909 | 5.45 | 11.04 | a | 20.30 | d | 28.66 | a | ----- | z | 58.37 | 62.84 | 66.52 | 50.28 | a | 33.06 | 19.59 | h | -0.44 | f | 37.39 | c | |||||
1910 | 3.43 | c | 2.18 | 32.20 | a | 37.37 | c | 40.19 | 58.30 | g | 62.29 | 54.77 | 48.93 | 39.33 | d | ----- | z | 7.48 | j | 35.63 | c | |||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.54 | c | 13.00 | f | 12.89 | c | 24.21 | j |
1912 | -5.52 | d | ----- | z | ----- | z | ----- | z | 47.07 | p | 55.97 | 62.63 | a | 57.70 | a | 46.97 | ----- | z | ----- | z | 16.93 | d | 39.11 | f | ||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.38 | d | 32.82 | c | 28.54 | d | 15.74 | 32.12 | h | |
1914 | 14.04 | h | 0.30 | e | 22.24 | b | 35.97 | a | 47.93 | a | 56.47 | 64.81 | e | 59.40 | f | ----- | z | ----- | z | ----- | z | ----- | z | 37.95 | f | |
1915 | 5.00 | j | 17.64 | 14.84 | 42.77 | 43.65 | 53.23 | 58.06 | 56.03 | 50.33 | 39.62 | b | 28.37 | 16.97 | b | 38.32 | a | |||||||||
1916 | -4.39 | 10.32 | a | 23.27 | a | 34.10 | a | 44.14 | b | 52.36 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.63 | f | |
1917 | ----- | z | ----- | z | ----- | z | 32.77 | 41.61 | 51.28 | a | 62.48 | 55.35 | 48.80 | 29.68 | c | 29.12 | e | -0.31 | e | 38.98 | c | |||||
1918 | -4.18 | c | 7.09 | e | 26.06 | 29.79 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.69 | h | |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.06 | o | 55.47 | 48.00 | 27.37 | 7.55 | 34.60 | h | ||||
1964 | 9.81 | 17.72 | 16.29 | 38.13 | ----- | z | 57.97 | a | 65.21 | b | 59.29 | 49.73 | 38.94 | 22.77 | 6.71 | 34.78 | a | |||||||||
1965 | 4.94 | 10.14 | 12.81 | 36.50 | 48.06 | 57.80 | 63.19 | 60.93 | a | 44.20 | 41.29 | 25.50 | 22.10 | 35.62 | ||||||||||||
1966 | -0.42 | 7.93 | 26.74 | 31.57 | 43.71 | 57.23 | 67.29 | 57.97 | 50.70 | 37.06 | 21.47 | 15.10 | 34.70 | |||||||||||||
1967 | 14.52 | 9.43 | 25.48 | 35.90 | 42.68 | 55.50 | 59.39 | 57.39 | 50.77 | 39.84 | 25.30 | 13.42 | 35.80 | |||||||||||||
1968 | 7.61 | 13.86 | 27.19 | 35.03 | a | 42.65 | 56.67 | 61.35 | 60.40 | a | 49.43 | 39.23 | 27.17 | 8.35 | 35.75 | |||||||||||
1969 | 1.13 | 14.46 | 14.19 | 38.53 | 49.58 | 53.83 | 63.77 | 65.35 | 55.07 | 37.29 | 27.67 | 17.80 | a | 36.56 | ||||||||||||
1970 | 2.48 | 17.07 | 19.61 | 34.30 | 49.45 | 60.30 | 64.58 | 62.97 | 52.10 | 38.74 | 25.70 | 9.97 | 36.44 | |||||||||||||
1971 | 5.61 | 12.36 | 23.38 | b | 38.47 | 47.03 | 62.60 | 59.16 | 62.48 | 51.50 | 42.29 | 28.03 | a | 12.97 | a | 37.16 | ||||||||||
1972 | 3.52 | 9.24 | 24.35 | 36.03 | 50.77 | 58.20 | 60.61 | 62.29 | 51.97 | 37.61 | 27.27 | 10.84 | 36.06 | |||||||||||||
1973 | 12.32 | 17.04 | 32.65 | 36.20 | 46.77 | a | 58.53 | 62.94 | 65.58 | 51.97 | 44.45 | ----- | z | 14.06 | 40.23 | a | ||||||||||
1974 | 10.00 | a | 16.71 | 26.61 | 37.70 | 46.94 | 56.40 | 68.10 | a | 58.19 | 46.70 | 41.03 | 27.10 | 18.29 | 37.81 | |||||||||||
1975 | 13.71 | 8.89 | 19.06 | 35.57 | 48.32 | 58.50 | 67.52 | 63.81 | 50.40 | 41.19 | 26.03 | a | 18.12 | g | 39.36 | a | ||||||||||
1976 | 10.87 | 22.28 | 24.81 | 40.17 | 47.23 | 59.13 | 66.19 | 65.55 | 52.53 | 36.61 | 19.86 | a | 12.58 | 38.15 | ||||||||||||
1977 | 0.87 | 19.89 | 28.19 | 42.40 | 56.00 | 61.03 | 64.33 | d | 59.84 | 54.73 | 39.93 | a | 26.37 | 12.06 | 38.81 | |||||||||||
1978 | -5.39 | 2.54 | 23.52 | 37.27 | 49.16 | 58.23 | 64.45 | 61.97 | 57.69 | a | 39.94 | ----- | z | 11.68 | 36.46 | a | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 5.81 | 9.99 | 21.93 | 35.78 | 46.44 | 56.34 | 62.56 | 60.20 | 50.36 | 38.12 | 24.04 | 12.42 | 35.61 | |||||||||||||
S.D. | 6.32 | 6.27 | 5.90 | 3.57 | 3.48 | 2.75 | 2.86 | 3.24 | 3.26 | 3.73 | 4.79 | 4.60 | 1.56 | |||||||||||||
SKEW | -0.27 | -0.12 | -0.68 | -0.29 | 0.16 | 0.00 | 0.26 | 0.36 | 0.25 | 0.08 | -1.53 | -0.37 | 0.25 | |||||||||||||
MAX | 15.71 | 22.28 | 32.65 | 42.77 | 56.00 | 62.60 | 68.10 | 66.52 | 57.69 | 48.00 | 29.12 | 22.10 | 38.81 | |||||||||||||
MIN | -5.52 | -3.22 | 4.48 | 27.45 | 39.10 | 51.27 | 58.06 | 54.77 | 44.20 | 29.68 | 10.14 | -0.31 | 32.80 | |||||||||||||
YRS | 32 | 33 | 33 | 33 | 31 | 33 | 32 | 32 | 35 | 34 | 30 | 33 | 21 |