YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | 20.91 | h | 24.93 | a | 32.42 | 39.73 | 45.83 | a | 45.58 | 41.03 | 27.81 | 21.47 | 11.61 | 32.27 | c | |||||||
1905 | 12.20 | a | 11.14 | 20.39 | 22.62 | a | 28.58 | 42.83 | 43.48 | 45.97 | 40.70 | 26.58 | 22.60 | 12.03 | 27.43 | |||||||||||
1906 | 15.61 | 15.43 | 16.10 | 24.69 | a | 33.13 | 40.50 | 43.03 | 45.48 | 38.67 | 28.29 | 23.04 | d | 22.48 | 28.87 | |||||||||||
1907 | ----- | z | 24.79 | 25.10 | 26.90 | 30.00 | 41.13 | 48.94 | 48.74 | 38.70 | 31.94 | 21.83 | 18.06 | 32.38 | a | |||||||||||
1908 | 16.61 | 16.86 | 23.35 | 27.70 | 29.68 | 41.50 | 47.35 | 47.29 | 43.57 | 28.74 | 21.40 | 19.45 | 30.29 | |||||||||||||
1909 | 21.86 | b | 14.11 | 18.94 | 22.67 | 30.32 | 44.03 | 49.61 | 47.52 | b | 37.37 | 34.48 | 28.83 | 12.13 | 30.16 | |||||||||||
1910 | 17.90 | 13.46 | 29.55 | 30.17 | a | 34.19 | 44.32 | b | 49.84 | 48.68 | 45.17 | 35.48 | 29.43 | 23.13 | 33.44 | |||||||||||
1911 | 21.63 | a | 15.86 | 23.77 | a | 27.03 | 35.74 | 43.87 | 45.23 | 45.19 | 42.10 | 30.68 | 17.83 | 13.68 | 30.22 | |||||||||||
1912 | 17.26 | 14.43 | a | 18.74 | 22.60 | 34.19 | 39.25 | f | 46.93 | d | 46.00 | 33.97 | a | 30.35 | 25.40 | 13.17 | b | 27.55 | a | |||||||
1913 | 8.30 | d | 8.46 | 12.94 | 24.57 | 33.32 | 40.73 | 45.35 | 47.13 | a | 35.20 | 23.23 | 24.80 | 11.42 | 26.29 | |||||||||||
1914 | 14.81 | 10.96 | 16.19 | 22.87 | 33.78 | h | 43.80 | 46.10 | 46.45 | 41.70 | 31.58 | 28.23 | 11.61 | 28.57 | a | |||||||||||
1915 | 10.94 | 15.82 | 14.61 | 28.47 | 29.10 | 39.23 | 44.87 | 42.71 | 38.77 | 30.71 | 19.40 | 15.19 | 27.48 | |||||||||||||
1916 | 12.81 | 18.10 | 20.87 | 22.50 | 31.52 | 40.93 | 48.39 | 44.87 | 37.33 | 28.87 | 17.17 | 7.06 | 27.54 | |||||||||||||
1917 | 9.61 | 12.79 | 10.58 | 21.10 | 24.35 | 32.23 | 38.68 | 35.17 | a | 32.07 | 19.48 | 26.77 | 18.48 | 23.44 | ||||||||||||
1918 | 6.35 | 15.30 | a | 22.10 | 20.77 | 32.13 | 46.03 | 41.03 | 46.77 | 37.40 | 32.13 | 16.67 | 12.87 | 27.46 | ||||||||||||
1919 | 14.58 | 9.89 | 13.55 | 23.14 | b | 33.16 | 39.00 | 47.00 | 47.45 | 42.80 | 28.00 | 19.67 | 16.77 | 27.92 | ||||||||||||
1920 | 19.74 | 15.66 | 12.35 | 16.77 | 33.16 | 39.30 | 39.03 | 35.32 | 35.43 | 29.26 | 18.60 | 12.90 | 25.63 | |||||||||||||
1921 | 12.13 | 14.18 | 19.97 | 17.30 | 32.55 | 40.70 | 46.48 | 44.61 | 39.83 | 33.29 | 21.93 | 19.35 | 28.53 | |||||||||||||
1922 | 9.00 | 9.00 | 15.16 | 19.87 | 30.00 | 43.26 | c | 40.35 | 46.90 | a | 40.50 | 29.81 | 15.57 | 15.77 | 26.27 | |||||||||||
1923 | 13.71 | 9.75 | 7.84 | 20.67 | 30.16 | 40.13 | 46.26 | 43.52 | 36.90 | 25.19 | 19.80 | 13.45 | 25.61 | |||||||||||||
1924 | 11.35 | 14.57 | a | 9.74 | 20.13 | 28.45 | 36.80 | 43.10 | 42.00 | 33.80 | 26.33 | a | 19.57 | 12.70 | a | 24.88 | ||||||||||
1925 | 10.07 | a | 15.11 | 17.71 | 26.93 | 32.45 | 40.10 | 45.74 | 41.39 | 36.67 | 29.93 | a | 22.23 | 18.68 | 28.08 | |||||||||||
1926 | 7.42 | 13.07 | 12.19 | 20.43 | 30.60 | a | 35.79 | a | 42.13 | 43.71 | 37.52 | a | 31.52 | 21.10 | 13.06 | 25.71 | ||||||||||
1927 | 18.39 | 14.86 | 16.47 | a | 25.73 | 34.65 | 41.93 | 44.32 | 43.53 | a | 38.53 | 31.68 | 24.43 | 9.48 | 28.67 | |||||||||||
1928 | 17.35 | 13.31 | 17.97 | ----- | z | 33.97 | 39.57 | 41.19 | 42.87 | 40.87 | 34.58 | 27.76 | a | ----- | z | 30.94 | b | |||||||||
1929 | ----- | z | 4.09 | f | 15.77 | 22.13 | 30.48 | 41.87 | 44.81 | 46.57 | a | 37.97 | 29.13 | 12.53 | 17.10 | 29.84 | b | |||||||||
1930 | 5.16 | 18.61 | 11.97 | 29.27 | 29.84 | 43.80 | 46.52 | 47.07 | a | 38.83 | 28.84 | 20.60 | 15.19 | 27.97 | ||||||||||||
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 | ----- | 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 | 10.86 | 21.16 | 23.97 | 36.61 | 42.50 | 49.58 | 45.58 | 39.40 | 29.74 | 25.97 | a | 14.84 | 30.93 | a | ||||||||||
1967 | 14.13 | 11.82 | 20.55 | 22.73 | 29.19 | 38.33 | 45.94 | 44.39 | 38.07 | 31.81 | 22.17 | 9.68 | 27.40 | |||||||||||||
1968 | 16.23 | 17.07 | 19.10 | 20.83 | 30.16 | 44.10 | 46.55 | 44.39 | 37.60 | 31.16 | 16.90 | 11.71 | 27.98 | |||||||||||||
1969 | 16.19 | 13.43 | 11.35 | 27.32 | b | 37.23 | 39.52 | a | 49.84 | 48.63 | a | 42.67 | 25.29 | 20.60 | 14.55 | 28.88 | ||||||||||
1970 | 10.13 | a | 14.64 | 9.80 | a | 18.37 | 33.00 | 39.87 | 47.03 | 48.94 | 37.00 | a | 24.32 | 18.13 | 14.45 | 26.31 | ||||||||||
1971 | 13.35 | 11.07 | 16.30 | a | 21.79 | a | 30.55 | 44.17 | 47.60 | a | 41.74 | 33.27 | 29.29 | 22.77 | 10.81 | 26.89 | ||||||||||
1972 | 13.50 | a | 16.48 | 25.32 | 27.62 | a | 34.61 | 42.43 | 45.00 | 42.84 | ----- | z | ----- | z | ----- | z | ----- | z | 30.98 | d | ||||||
1973 | ----- | z | ----- | z | 15.74 | 16.10 | 29.87 | 40.27 | 48.00 | 47.68 | ----- | z | 31.30 | a | 21.77 | ----- | z | 31.34 | d | |||||||
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 | 14.90 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.61 | 14.09 | 17.15 | 23.26 | 31.75 | 41.01 | 45.46 | 44.93 | 38.53 | 29.44 | 21.68 | 14.47 | 27.67 | |||||||||||||
S.D. | 4.30 | 3.26 | 5.09 | 3.62 | 2.66 | 2.76 | 2.97 | 3.20 | 3.06 | 3.35 | 3.96 | 3.70 | 2.02 | |||||||||||||
SKEW | 0.01 | 0.82 | 0.28 | -0.01 | -0.18 | -0.87 | -0.60 | -1.48 | -0.01 | -0.76 | 0.09 | 0.52 | 0.58 | |||||||||||||
MAX | 21.86 | 24.79 | 29.55 | 30.17 | 37.23 | 46.03 | 49.84 | 48.94 | 45.17 | 35.48 | 29.43 | 23.13 | 33.44 | |||||||||||||
MIN | 5.16 | 8.46 | 7.84 | 16.10 | 24.35 | 32.23 | 38.68 | 35.17 | 32.07 | 19.48 | 12.53 | 7.06 | 23.44 | |||||||||||||
YRS | 30 | 32 | 34 | 34 | 34 | 34 | 35 | 35 | 33 | 34 | 34 | 32 | 26 |