YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.12 | k | ----- | z | ----- | z | 40.83 | j | 26.69 | a | 4.63 | e | 15.66 | j |
1894 | -1.52 | b | 8.73 | 25.50 | e | 42.82 | e | 54.92 | 70.25 | b | ----- | z | ----- | z | ----- | z | ----- | z | 12.93 | p | 18.23 | a | 31.28 | e | ||
1895 | -3.15 | 3.94 | b | 22.90 | 50.12 | 54.23 | 59.67 | 65.88 | b | 63.66 | 55.96 | b | 40.60 | b | 18.75 | b | ----- | z | 39.32 | a | ||||||
1896 | ----- | z | ----- | z | 17.03 | b | 39.38 | 57.27 | 67.05 | 67.26 | 64.35 | 53.28 | 39.71 | e | 7.11 | b | 13.35 | 42.58 | b | |||||||
1897 | 2.56 | 4.26 | a | 9.27 | 39.57 | 55.07 | a | 61.40 | 67.87 | 63.05 | b | 65.28 | a | 46.57 | a | 22.24 | c | 10.65 | 37.32 | |||||||
1898 | 12.38 | b | 11.93 | 20.58 | 40.78 | c | 52.39 | 57.88 | q | 66.56 | o | 65.15 | a | 57.22 | a | 39.10 | b | 22.65 | 12.90 | 33.51 | b | |||||
1899 | 4.50 | -0.75 | 6.24 | b | 38.05 | a | 48.03 | m | ----- | z | ----- | z | ----- | z | 54.71 | i | 39.40 | k | 36.46 | q | ----- | z | 12.01 | h | ||
1900 | 12.60 | b | -2.10 | c | 19.94 | g | 52.33 | ----- | z | ----- | z | 66.84 | 70.27 | 54.67 | ----- | z | ----- | z | ----- | z | 42.44 | f | ||||
1901 | 5.21 | 4.50 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.85 | j | |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | 48.80 | o | 57.73 | 62.33 | 71.85 | 65.00 | 54.28 | 45.87 | 27.40 | 2.19 | 48.33 | d | ||||||||
1965 | -0.45 | 9.55 | 15.65 | a | 40.32 | 53.66 | 63.28 | 68.25 | a | 66.50 | 46.45 | 47.94 | 26.18 | 20.63 | 38.16 | |||||||||||
1966 | -7.45 | 6.68 | 31.82 | c | 35.90 | 51.68 | 64.03 | 72.11 | 64.95 | 58.47 | 45.95 | a | 20.45 | 11.92 | 38.04 | |||||||||||
1967 | 9.66 | 4.95 | 24.35 | 36.84 | a | 49.84 | 62.72 | 70.35 | 69.11 | 60.53 | 43.65 | 28.05 | a | 13.53 | 39.47 | |||||||||||
1968 | 5.63 | 9.88 | 32.11 | 42.63 | 50.68 | 61.98 | 68.44 | 64.58 | 57.82 | 44.79 | 29.45 | 8.60 | 39.72 | |||||||||||||
1969 | -4.03 | 11.20 | 15.32 | 43.57 | 55.11 | 57.95 | 68.02 | 72.68 | 59.37 | 40.02 | 30.03 | 15.90 | 38.76 | |||||||||||||
1970 | 0.58 | 11.23 | 17.27 | 38.41 | b | 52.77 | 69.03 | 72.02 | a | 69.10 | 58.50 | 43.33 | a | 25.80 | 8.16 | 38.85 | ||||||||||
1971 | -2.89 | 10.21 | 21.85 | 41.97 | 53.23 | 65.52 | 65.08 | 69.66 | 56.07 | 45.85 | 26.40 | 9.98 | 38.58 | |||||||||||||
1972 | 2.67 | a | 5.07 | 23.13 | 38.77 | 57.73 | 66.15 | 66.21 | 70.42 | 56.23 | 41.80 | a | 26.08 | 7.07 | a | 38.44 | ||||||||||
1973 | ----- | z | 19.41 | ----- | z | 41.03 | ----- | z | 65.53 | 68.42 | ----- | z | 56.13 | ----- | z | 21.00 | 9.83 | a | 40.19 | e | ||||||
1974 | 2.71 | 10.66 | 20.53 | 39.17 | f | 52.00 | g | 65.18 | 74.37 | 64.98 | 54.95 | ----- | z | 27.38 | 19.34 | 37.79 | c | |||||||||
1975 | 11.29 | 9.46 | 20.68 | 33.93 | 55.65 | 64.28 | a | 73.87 | 67.60 | 55.12 | 47.63 | 30.40 | 17.17 | a | 40.59 | |||||||||||
1976 | 9.90 | 22.34 | 23.18 | 46.63 | 56.95 | 67.30 | 71.16 | 70.77 | 60.72 | 39.97 | 24.07 | a | 9.50 | a | 41.87 | |||||||||||
1977 | -1.79 | 19.86 | 32.98 | 49.52 | 65.85 | 67.12 | 72.50 | a | 62.25 | a | 55.82 | 47.10 | b | 35.71 | k | 3.17 | e | 43.13 | a | |||||||
1978 | -4.19 | 2.93 | 24.60 | a | 42.30 | 60.40 | 65.18 | 69.90 | 69.43 | a | 62.93 | 47.06 | 20.93 | b | 6.95 | a | 39.04 | |||||||||
1979 | -4.68 | c | -2.07 | a | 19.65 | 31.73 | 49.26 | 65.00 | 71.24 | 66.13 | a | 61.22 | 43.52 | b | 25.27 | 23.30 | c | 37.46 | ||||||||
1980 | 8.38 | e | 10.89 | a | 20.65 | 48.98 | 60.23 | 63.47 | a | 69.86 | c | 64.39 | 56.25 | 42.40 | 32.95 | a | 15.74 | 41.18 | ||||||||
1981 | 13.48 | a | 20.46 | a | 34.98 | 47.23 | b | 54.30 | d | 61.22 | a | 69.60 | a | 70.15 | 57.52 | 47.94 | e | 37.84 | b | 14.68 | i | 46.79 | a | |||
1982 | -6.60 | b | 1.75 | h | 20.56 | e | 37.98 | f | 55.41 | d | 58.24 | g | 69.90 | e | 66.28 | a | 55.63 | d | 44.65 | e | ----- | z | ----- | z | 43.69 | e |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.76 | 69.23 | 53.25 | 42.98 | b | 29.83 | -4.06 | g | 51.81 | g | ||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.39 | c | 51.52 | c | 43.88 | a | ----- | z | ----- | z | 55.60 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.70 | 8.88 | 21.78 | 41.86 | 55.20 | 64.35 | 69.37 | 67.24 | 56.74 | 44.01 | 25.52 | 11.94 | 39.11 | |||||||||||||
S.D. | 6.55 | 6.74 | 6.98 | 5.31 | 3.81 | 2.96 | 2.75 | 2.96 | 3.76 | 2.84 | 5.93 | 5.68 | 1.34 | |||||||||||||
SKEW | 0.20 | 0.34 | -0.07 | 0.23 | 0.86 | -0.12 | -0.10 | 0.08 | -0.19 | -0.25 | -0.95 | 0.18 | 0.69 | |||||||||||||
MAX | 13.48 | 22.34 | 34.98 | 52.33 | 65.85 | 70.25 | 74.37 | 72.68 | 65.28 | 47.94 | 37.84 | 23.30 | 41.87 | |||||||||||||
MIN | -7.45 | -2.10 | 6.24 | 31.73 | 49.26 | 57.95 | 63.76 | 62.25 | 46.45 | 39.10 | 7.11 | 2.19 | 37.32 | |||||||||||||
YRS | 24 | 24 | 23 | 23 | 22 | 22 | 24 | 25 | 26 | 23 | 23 | 22 | 14 |