YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.37 | a | 60.34 | b | 46.66 | 16.96 | c | 29.30 | d | 45.33 | g | |
1897 | 14.00 | 17.29 | d | 26.50 | d | 45.95 | b | 60.29 | 67.43 | b | 76.44 | 70.37 | 71.55 | 54.84 | b | 29.12 | b | 20.92 | f | 48.53 | a | |||||
1898 | 26.73 | 28.54 | d | 34.16 | b | 48.93 | 58.11 | 71.33 | 74.19 | 73.74 | 65.87 | 48.78 | f | 29.90 | 21.71 | b | 48.47 | a | ||||||||
1899 | 21.34 | 12.19 | d | 18.15 | ----- | z | 59.15 | 69.38 | ----- | z | 76.55 | l | 63.93 | 51.55 | 44.57 | 22.89 | 40.35 | c | ||||||||
1900 | 27.39 | 19.73 | 33.43 | a | 54.65 | 64.69 | 72.52 | 74.16 | 78.10 | 63.55 | 55.32 | 28.82 | 30.12 | b | 50.21 | |||||||||||
1901 | 24.92 | e | 20.74 | c | 35.54 | f | 51.65 | d | 65.26 | b | 70.09 | a | 82.02 | c | 74.55 | b | 59.89 | b | 53.28 | a | 37.74 | c | 20.73 | a | 50.99 | a |
1902 | 24.73 | c | 18.98 | 35.32 | 47.37 | 62.52 | b | 65.25 | b | 74.90 | a | 69.77 | 60.29 | a | 51.69 | 36.95 | 14.76 | 46.88 | ||||||||
1903 | 19.79 | 14.61 | 33.15 | a | 50.03 | 61.37 | a | 68.02 | 74.87 | 71.97 | 61.12 | 55.48 | 33.72 | 20.87 | a | 47.08 | ||||||||||
1904 | 15.30 | a | 14.19 | 34.90 | 46.10 | a | 59.67 | a | 66.05 | b | 72.89 | 73.76 | 65.05 | 56.40 | 41.27 | 21.82 | 47.28 | |||||||||
1905 | 11.13 | 13.27 | 41.50 | 47.10 | 55.08 | 66.32 | 70.73 | 75.97 | 68.30 | 47.97 | a | 40.73 | 27.94 | 47.17 | ||||||||||||
1906 | 22.56 | 24.80 | 23.76 | 52.65 | 60.27 | 67.07 | 72.68 | 72.39 | 66.13 | 51.52 | 34.53 | 24.13 | a | 47.71 | ||||||||||||
1907 | 8.55 | 23.70 | a | 41.26 | 41.21 | a | 52.52 | 66.65 | 73.24 | 74.18 | a | 61.47 | 51.32 | c | 39.38 | 28.97 | 46.87 | |||||||||
1908 | 28.45 | 25.55 | 36.27 | 51.55 | a | 57.26 | 67.28 | 74.24 | 71.03 | a | 69.98 | 50.44 | 37.71 | a | 23.07 | c | 49.40 | |||||||||
1909 | 16.48 | 22.80 | a | 32.04 | h | 45.77 | h | ----- | z | 70.80 | 75.65 | 78.87 | a | 63.86 | b | 49.17 | a | 34.46 | p | 6.96 | r | 53.95 | e | |||
1910 | 14.93 | h | 14.34 | 49.54 | c | 54.74 | c | 55.33 | a | 70.46 | g | 75.82 | 71.24 | 65.47 | 60.34 | i | ----- | z | 19.62 | j | 55.21 | e | ||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.86 | c | 27.00 | f | 24.54 | c | 35.70 | j |
1912 | 5.78 | d | ----- | z | ----- | z | ----- | z | 60.07 | q | 69.30 | 74.08 | a | 70.76 | b | 58.58 | ----- | z | ----- | z | 30.44 | d | 51.49 | f | ||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.13 | d | 45.17 | g | 41.36 | e | 25.69 | 43.73 | i | |
1914 | 25.46 | h | 10.65 | e | 31.38 | b | 46.95 | a | 57.77 | a | 68.17 | 77.58 | f | 73.08 | g | ----- | z | ----- | z | ----- | z | ----- | z | 42.98 | g | |
1915 | 6.71 | x | 24.82 | 22.61 | 55.23 | b | 54.90 | 64.33 | 67.92 | 67.55 | 63.38 | a | 54.47 | b | 39.53 | 27.00 | b | 49.25 | a | |||||||
1916 | 6.95 | 22.20 | b | 37.76 | b | 47.09 | a | 58.19 | b | 64.39 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.43 | f | |
1917 | ----- | z | ----- | z | ----- | z | 43.62 | 54.98 | 65.35 | c | 76.45 | a | 69.97 | a | 62.41 | b | 45.55 | c | 43.06 | e | 11.85 | g | 57.67 | d | ||
1918 | 5.93 | d | 21.02 | e | 41.77 | 43.09 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.95 | 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 | 75.30 | p | 67.63 | 61.66 | 39.97 | 18.94 | 47.05 | h | ||||
1964 | 24.65 | 29.62 | 29.73 | 51.23 | ----- | z | 71.36 | a | 80.02 | c | 72.97 | 64.15 | 53.71 | 35.88 | 19.08 | a | 48.40 | a | ||||||||
1965 | 17.10 | 23.77 | 24.26 | 49.48 | 62.69 | 69.55 | 76.31 | 74.40 | a | 54.90 | 55.31 | 37.73 | 31.94 | 48.12 | ||||||||||||
1966 | 11.24 | 18.66 | 39.74 | 44.55 | 60.11 | 71.37 | 82.05 | 72.03 | 64.63 | 52.68 | 34.03 | 25.50 | 48.05 | |||||||||||||
1967 | 25.44 | 23.02 | 38.10 | 50.07 | 55.58 | 67.75 | 74.63 | 73.39 | 65.00 | 52.05 | 36.88 | 24.06 | 48.83 | |||||||||||||
1968 | 19.02 | 23.91 | 42.19 | 48.84 | a | 56.60 | 70.25 | 75.18 | 74.30 | a | 63.72 | 52.94 | 36.72 | 17.61 | 48.44 | |||||||||||
1969 | 10.94 | 22.66 | 25.26 | 53.00 | 64.39 | 66.47 | a | 76.69 | 79.03 | 68.33 | 46.87 | 38.85 | 26.37 | a | 48.24 | |||||||||||
1970 | 12.87 | 29.84 | 30.18 | 46.60 | 63.90 | 73.33 | 78.18 | 76.58 | 66.78 | 50.60 | a | 34.57 | a | 20.82 | 48.69 | |||||||||||
1971 | 14.65 | 23.23 | 34.00 | b | 51.62 | 59.73 | 75.38 | 73.08 | 77.33 | a | 64.70 | 53.68 | 37.12 | a | 22.73 | a | 48.94 | |||||||||
1972 | 14.84 | 20.19 | 36.42 | 47.50 | 62.02 | 70.48 | 73.94 | 75.06 | 65.30 | 49.06 | 33.92 | 19.84 | 47.38 | |||||||||||||
1973 | 23.25 | a | 27.84 | 42.73 | 49.16 | a | 61.00 | a | 72.85 | 77.42 | 80.21 | 63.65 | 57.03 | a | ----- | z | 22.94 | 52.55 | a | |||||||
1974 | 22.57 | a | 29.54 | 40.29 | 51.80 | 60.39 | 71.14 | a | 82.62 | a | 72.88 | a | 63.12 | 55.81 | 38.95 | 29.13 | 51.52 | |||||||||
1975 | 24.11 | 19.48 | 31.19 | 45.83 | 62.40 | 70.69 | a | 81.61 | 77.42 | 64.22 | 55.94 | 37.60 | a | 28.67 | h | 51.86 | a | |||||||||
1976 | 22.11 | 36.17 | 36.95 | 54.62 | 62.16 | 74.15 | 80.52 | 80.08 | 67.38 | 49.68 | 32.50 | a | 24.66 | 51.75 | ||||||||||||
1977 | 12.13 | 31.80 | 38.79 | 55.83 | 68.52 | 74.20 | 78.21 | e | 72.56 | 66.42 | 52.47 | a | 37.14 | b | 21.42 | a | 50.79 | |||||||||
1978 | 5.05 | 11.66 | 35.08 | 48.79 | b | 61.44 | 72.23 | 76.85 | 76.40 | 71.57 | a | 54.31 | ----- | z | 21.13 | 48.59 | a | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 17.42 | 21.84 | 34.40 | 49.28 | 59.94 | 69.42 | 76.05 | 74.13 | 64.48 | 52.38 | 36.24 | 23.88 | 48.60 | |||||||||||||
S.D. | 7.12 | 6.21 | 6.98 | 3.76 | 3.63 | 3.00 | 3.42 | 3.18 | 3.46 | 3.56 | 5.26 | 4.12 | 1.52 | |||||||||||||
SKEW | -0.20 | 0.08 | -0.35 | -0.07 | 0.06 | 0.07 | 0.18 | 0.21 | -0.24 | 0.10 | -1.66 | 0.08 | 0.81 | |||||||||||||
MAX | 28.45 | 36.17 | 49.54 | 55.83 | 68.52 | 75.38 | 82.62 | 80.21 | 71.57 | 61.66 | 44.57 | 31.94 | 51.75 | |||||||||||||
MIN | 5.05 | 10.65 | 18.15 | 41.21 | 52.52 | 64.33 | 67.92 | 67.55 | 54.90 | 45.55 | 16.96 | 14.76 | 46.87 | |||||||||||||
YRS | 31 | 33 | 31 | 32 | 31 | 33 | 31 | 32 | 35 | 32 | 30 | 31 | 19 |