YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1905 | 13.83 | b | 16.23 | b | 31.32 | i | 32.25 | b | 34.52 | j | 44.46 | f | 48.19 | e | 47.06 | 40.50 | 25.73 | p | 20.63 | 4.87 | a | 27.95 | d | |||
1906 | ----- | z | 17.50 | 25.74 | 31.50 | 38.03 | 39.17 | f | 48.29 | 47.52 | b | 38.85 | c | 30.07 | a | 22.86 | a | 19.70 | a | 32.01 | b | |||||
1907 | 19.93 | q | 27.14 | n | 30.33 | g | 36.78 | g | 35.68 | 42.63 | c | 49.00 | 50.94 | 39.21 | a | 35.65 | 18.80 | 13.93 | a | 35.73 | d | |||||
1908 | ----- | z | 19.72 | 23.74 | 30.27 | 35.55 | 41.67 | 49.84 | 49.84 | 39.17 | 28.19 | 16.47 | 13.87 | 31.67 | a | |||||||||||
1909 | 17.29 | 18.07 | 24.16 | 30.67 | 35.35 | 43.57 | 51.39 | 52.58 | 41.97 | 29.87 | 22.34 | a | 2.80 | a | 30.84 | |||||||||||
1910 | 13.17 | a | 18.11 | 28.39 | 32.23 | 38.27 | a | 46.67 | 51.06 | 49.97 | 44.83 | ----- | z | 26.77 | 15.43 | j | 34.95 | b | ||||||||
1911 | 20.06 | 23.39 | 30.03 | a | 33.03 | 40.42 | 49.40 | 53.35 | 52.06 | 47.13 | 32.16 | 20.67 | 8.74 | 34.21 | ||||||||||||
1912 | 11.13 | 20.55 | 29.07 | a | 31.43 | 41.13 | 47.57 | 54.13 | 51.45 | 38.60 | 33.58 | 22.50 | 6.71 | 32.32 | ||||||||||||
1913 | 5.74 | 17.68 | 23.84 | 33.43 | 42.60 | a | 47.97 | 53.39 | 54.45 | 42.90 | 31.68 | 28.33 | 9.65 | 32.64 | ||||||||||||
1914 | 13.71 | 18.43 | 24.77 | 35.14 | a | 42.26 | 48.80 | 54.94 | 51.26 | 45.34 | a | 34.94 | 21.33 | 10.48 | 33.45 | |||||||||||
1915 | 5.00 | 19.79 | 25.32 | 37.10 | 38.74 | 45.13 | 54.00 | 50.81 | 45.17 | 32.71 | 24.03 | 17.00 | 32.90 | |||||||||||||
1916 | 18.23 | 22.07 | 27.77 | 34.80 | 40.77 | 48.47 | 54.84 | 53.32 | 43.13 | 34.29 | 18.80 | 12.26 | 34.06 | |||||||||||||
1917 | 5.97 | 19.29 | 18.90 | 31.30 | 37.55 | 47.37 | 56.77 | 51.45 | 44.13 | 30.90 | 24.90 | 18.00 | 32.21 | |||||||||||||
1918 | 9.32 | 16.50 | 29.32 | 31.63 | 40.23 | 52.73 | 52.90 | 51.87 | 43.80 | 37.94 | 21.60 | 13.94 | 33.48 | |||||||||||||
1919 | 2.29 | 16.39 | 25.52 | 34.07 | 44.68 | 48.83 | 58.10 | 54.03 | 48.70 | 32.23 | 22.31 | a | 9.26 | 33.03 | ||||||||||||
1920 | 13.61 | 24.45 | 25.03 | 28.59 | a | 43.87 | 49.30 | 53.19 | 52.26 | 43.77 | 34.94 | 25.63 | 13.23 | 33.99 | ||||||||||||
1921 | 19.71 | 22.29 | 30.97 | 32.13 | 42.27 | a | 49.30 | 55.81 | 53.77 | 45.90 | 38.13 | 26.03 | 24.61 | 36.74 | ||||||||||||
1922 | 12.06 | 20.18 | 24.16 | 30.63 | 41.29 | 51.30 | 55.77 | 55.84 | 46.37 | 33.39 | 24.57 | 20.29 | 34.65 | |||||||||||||
1923 | 21.19 | 17.11 | 21.61 | 32.70 | 42.71 | 47.80 | 56.65 | 53.13 | 42.77 | 31.67 | a | 23.40 | 12.29 | 33.59 | ||||||||||||
1924 | 2.65 | 22.48 | 23.03 | a | 31.38 | a | 41.58 | 51.23 | 55.29 | 52.00 | 42.03 | a | 34.10 | a | 23.13 | 10.16 | 32.42 | |||||||||
1925 | 2.87 | 19.21 | 29.48 | 35.80 | 45.43 | a | 50.73 | 57.45 | 53.71 | 47.57 | 35.40 | a | 22.63 | 17.55 | 34.82 | |||||||||||
1926 | 12.71 | 24.96 | 27.26 | 38.27 | 43.16 | 51.90 | 54.55 | 54.55 | 45.47 | 37.26 | 26.53 | 14.70 | a | 35.94 | ||||||||||||
1927 | 16.90 | a | 25.33 | a | 24.42 | 35.33 | 43.26 | 50.77 | 55.19 | 52.74 | 47.63 | 35.16 | 28.38 | a | 11.73 | a | 35.57 | |||||||||
1928 | 16.68 | 20.28 | 29.17 | b | 31.23 | 44.10 | 48.59 | a | 54.90 | 51.69 | e | 45.90 | 36.68 | c | 27.17 | 11.67 | a | 34.84 | ||||||||
1929 | 9.81 | 12.63 | a | 26.52 | 33.00 | b | 41.33 | a | 49.83 | 57.16 | 55.97 | 46.07 | 34.76 | b | 18.67 | 15.00 | 33.39 | |||||||||
1930 | 5.15 | d | 21.07 | a | 25.03 | 37.63 | 39.32 | 49.63 | 55.39 | 54.17 | a | 45.83 | 33.42 | 19.73 | 8.17 | a | 32.88 | |||||||||
1931 | 11.62 | b | 26.86 | 22.73 | a | 33.83 | a | 39.77 | 53.36 | b | 58.23 | a | 54.55 | 49.80 | 37.30 | d | 21.67 | c | 8.17 | b | 34.82 | |||||
1932 | 8.94 | 24.37 | b | 25.13 | a | 32.77 | h | 43.30 | a | 49.93 | 58.03 | 54.32 | 43.93 | 34.13 | 23.10 | 10.55 | 34.16 | a | ||||||||
1933 | 8.97 | 6.00 | 27.93 | a | 30.17 | 38.94 | 53.07 | b | 58.50 | a | 52.19 | j | 50.33 | 38.38 | b | 25.54 | f | 20.35 | 33.26 | b | ||||||
1934 | 19.81 | 27.61 | 32.23 | 38.13 | 46.65 | 48.67 | 58.45 | 57.29 | 45.13 | 35.35 | 26.07 | 19.26 | 37.89 | |||||||||||||
1935 | 19.45 | 20.64 | 25.81 | 35.38 | a | 41.13 | 49.97 | 56.42 | 56.03 | 46.67 | 35.55 | 24.50 | 16.06 | 35.63 | ||||||||||||
1936 | 16.06 | 23.72 | 27.52 | 35.07 | 43.32 | 52.30 | 57.19 | 55.45 | 46.03 | a | 36.06 | 19.66 | a | 17.55 | 35.83 | |||||||||||
1937 | 1.93 | a | 18.04 | 26.17 | a | 34.20 | 42.71 | 49.93 | 55.94 | 55.26 | 48.33 | 36.77 | 27.85 | c | 19.55 | 34.72 | ||||||||||
1938 | 17.42 | 23.00 | a | 28.97 | 34.81 | c | 41.65 | 51.00 | 53.55 | 56.77 | 48.13 | 36.71 | 18.59 | a | 16.34 | b | 35.58 | |||||||||
1939 | 15.87 | 8.57 | 26.77 | 35.71 | b | 43.48 | 49.07 | 56.77 | 54.35 | 49.63 | 33.45 | 23.83 | a | 16.03 | 34.46 | |||||||||||
1940 | 11.50 | c | 22.29 | e | 27.86 | c | 34.40 | 44.23 | 50.73 | 56.03 | 52.58 | 48.67 | 35.23 | 22.33 | 15.44 | f | 36.90 | a | ||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.14 | 19.85 | 26.31 | 33.45 | 41.28 | 49.09 | 54.74 | 53.00 | 44.98 | 34.35 | 23.02 | 13.66 | 34.18 | |||||||||||||
S.D. | 5.81 | 4.57 | 2.82 | 2.44 | 2.78 | 2.74 | 2.83 | 2.37 | 3.17 | 2.50 | 3.06 | 4.92 | 1.55 | |||||||||||||
SKEW | -0.26 | -0.99 | -0.21 | 0.23 | -0.48 | -0.97 | -0.84 | -0.49 | -0.42 | -0.48 | -0.05 | -0.06 | 0.21 | |||||||||||||
MAX | 21.19 | 27.61 | 32.23 | 38.27 | 46.65 | 53.36 | 58.50 | 57.29 | 50.33 | 38.38 | 28.38 | 24.61 | 37.89 | |||||||||||||
MIN | 1.93 | 6.00 | 18.90 | 28.59 | 35.35 | 41.67 | 48.19 | 47.06 | 38.60 | 28.19 | 16.47 | 2.80 | 30.84 | |||||||||||||
YRS | 33 | 35 | 34 | 34 | 35 | 34 | 36 | 35 | 36 | 34 | 35 | 34 | 28 |