YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 22.31 | e | 14.68 | 20.37 | a | 24.20 | 32.53 | a | 42.55 | a | ----- | z | ----- | z | ----- | z | 31.43 | j | 19.40 | e | 22.19 | 24.78 | d | |||
1894 | 13.38 | j | 9.28 | c | 20.69 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.98 | j |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 14.07 | 26.81 | 28.77 | 36.03 | 44.20 | 48.87 | 51.67 | a | 45.37 | 30.00 | 27.60 | 13.17 | a | 33.32 | a | |||||||||
1906 | 17.67 | a | 16.12 | b | 15.90 | b | 30.37 | 37.45 | 42.07 | 47.06 | 46.61 | 41.23 | 31.03 | 23.40 | 23.65 | 31.05 | ||||||||||
1907 | 17.81 | 24.89 | 28.00 | 28.37 | 31.55 | 41.97 | 48.97 | 48.42 | 40.43 | 33.39 | 21.27 | 18.10 | 31.93 | |||||||||||||
1908 | 17.35 | 18.17 | 25.03 | a | 30.17 | 33.13 | 41.70 | 48.13 | 47.84 | 42.63 | 29.48 | 20.47 | 18.19 | 31.03 | ||||||||||||
1909 | 21.13 | 16.14 | 19.58 | 23.87 | 33.13 | 43.80 | 49.90 | 50.84 | 40.53 | 33.74 | 26.47 | 11.61 | 30.90 | |||||||||||||
1910 | 17.32 | 14.50 | 28.10 | 30.87 | 35.45 | 43.40 | 51.06 | 48.58 | 42.45 | a | 33.42 | 27.90 | 21.58 | 32.89 | ||||||||||||
1911 | 21.13 | 10.67 | a | 25.93 | a | 28.21 | b | 35.94 | 45.03 | a | 47.77 | 47.59 | b | 42.52 | c | 28.60 | f | 18.89 | k | 11.39 | c | 31.62 | b | |||
1912 | 19.18 | c | 17.85 | c | 14.23 | e | 27.07 | c | 35.10 | 41.97 | 47.55 | 48.07 | a | 36.73 | 31.68 | 26.10 | 14.58 | 30.01 | ||||||||
1913 | 13.70 | a | 11.41 | a | 19.77 | 28.21 | a | 37.33 | a | 44.23 | 49.84 | 50.52 | 38.45 | a | 28.77 | a | 26.40 | 9.39 | 29.83 | |||||||
1914 | 20.61 | 15.11 | a | 20.58 | 29.14 | a | 37.19 | 43.48 | a | 49.97 | 48.47 | a | 41.33 | 32.00 | 25.27 | 9.90 | 31.09 | |||||||||
1915 | 14.47 | a | 18.39 | 18.06 | 32.63 | 31.87 | a | 39.96 | c | 45.84 | 44.35 | 39.68 | b | 29.61 | c | 23.10 | a | 15.48 | d | 29.45 | ||||||
1916 | 6.30 | a | 18.48 | 25.63 | a | 28.03 | 33.29 | ----- | z | 49.30 | a | 46.63 | a | 37.66 | a | 28.65 | 15.52 | a | 8.26 | 27.07 | a | |||||
1917 | 10.58 | 16.67 | a | 13.37 | a | 23.37 | 29.14 | b | 39.50 | b | 48.21 | b | 44.93 | b | 40.70 | 31.30 | a | 26.87 | 26.29 | 29.24 | ||||||
1918 | 12.61 | 18.82 | 26.67 | a | 24.93 | a | 35.10 | 47.77 | 48.87 | 48.61 | 39.57 | 35.10 | 19.73 | 14.86 | i | 32.53 | a | |||||||||
1919 | 17.26 | 16.64 | 21.14 | b | 29.53 | 36.06 | 43.43 | 51.87 | 48.81 | 43.53 | 28.42 | 20.87 | 17.23 | 31.23 | ||||||||||||
1920 | 19.71 | 17.83 | 19.40 | a | 21.73 | 35.19 | 41.87 | 48.58 | 45.48 | 38.97 | 31.10 | 19.37 | 16.45 | 29.64 | ||||||||||||
1921 | 18.42 | 19.36 | 26.23 | a | 23.97 | 36.58 | 43.77 | 48.68 | 47.90 | 39.43 | 35.81 | 25.87 | 22.48 | 32.37 | ||||||||||||
1922 | 10.48 | 14.25 | 18.03 | 25.20 | 35.42 | 44.30 | 48.03 | 49.03 | 41.90 | 29.71 | 20.53 | 19.03 | 29.66 | |||||||||||||
1923 | 20.03 | 10.61 | 14.71 | 25.27 | 32.23 | i | 40.66 | a | 48.45 | b | 46.23 | 38.30 | 24.97 | 20.63 | 14.74 | 27.69 | a | |||||||||
1924 | 13.32 | 18.69 | 12.16 | 24.57 | 31.48 | 40.80 | 46.94 | 46.55 | 36.83 | 31.77 | 24.10 | 12.87 | 28.34 | |||||||||||||
1925 | 12.87 | 22.07 | 23.06 | 29.10 | 36.58 | 42.73 | 48.71 | 46.13 | 40.87 | 28.17 | a | 23.87 | 18.39 | 31.05 | ||||||||||||
1926 | 15.23 | 22.21 | 18.16 | 27.50 | 36.94 | 42.73 | 46.55 | 47.39 | 37.77 | 32.13 | 26.20 | 14.45 | 30.60 | |||||||||||||
1927 | 16.90 | 19.54 | 19.97 | 27.53 | 35.77 | 44.03 | 47.53 | a | 44.63 | a | 39.80 | 32.26 | 29.57 | 10.32 | 30.66 | |||||||||||
1928 | 20.29 | 14.07 | 22.81 | 25.07 | 37.39 | 41.03 | 47.00 | 45.87 | 39.77 | 32.42 | 23.13 | 14.00 | 30.24 | |||||||||||||
1929 | 14.13 | 8.32 | 21.61 | 27.13 | 34.19 | 41.80 | 48.74 | 49.42 | 39.20 | 31.52 | 16.87 | 20.03 | 29.41 | |||||||||||||
1930 | 3.87 | 24.21 | 16.68 | 32.50 | 33.87 | 42.10 | 50.35 | 48.52 | 40.23 | 30.52 | 22.13 | 14.35 | 29.95 | |||||||||||||
1931 | 16.71 | 18.89 | 18.10 | 27.17 | 33.71 | 45.47 | 50.10 | 47.52 | 43.67 | 33.87 | 19.33 | 15.52 | 30.84 | |||||||||||||
1932 | 9.77 | 20.14 | 16.00 | 29.37 | 36.10 | 42.03 | 49.45 | 48.61 | 39.40 | 29.19 | 26.47 | 8.48 | 29.58 | |||||||||||||
1933 | 19.24 | j | 8.50 | 22.58 | 24.53 | 31.55 | 46.10 | 50.77 | 47.52 | 44.07 | 34.68 | 27.90 | 28.80 | a | 33.36 | a | ||||||||||
1934 | 19.77 | 20.11 | 26.39 | 29.87 | 40.55 | 43.67 | 51.70 | a | 49.74 | 37.31 | a | 34.68 | 25.30 | 18.71 | 33.15 | |||||||||||
1935 | 19.84 | 17.78 | a | 22.65 | 27.45 | a | 32.53 | a | 42.37 | 50.32 | 50.32 | 42.14 | a | 31.26 | 22.76 | a | 18.29 | 31.48 | ||||||||
1936 | 17.29 | c | 14.23 | c | 23.00 | 29.34 | a | 36.90 | 45.67 | 51.00 | 49.29 | 40.70 | 30.40 | a | 22.31 | a | 18.40 | a | 31.54 | |||||||
1937 | 3.73 | a | 15.12 | b | 19.06 | 26.97 | 37.13 | a | 42.93 | a | 49.50 | a | 50.29 | 42.17 | 34.84 | 25.17 | a | 17.77 | 30.39 | |||||||
1938 | 17.16 | 18.36 | 23.71 | 26.70 | 34.13 | 44.00 | 47.29 | 49.87 | a | 43.07 | 33.83 | a | 19.21 | a | 20.10 | 31.45 | ||||||||||
1939 | 17.10 | 9.11 | 21.71 | 29.58 | f | 37.29 | 41.13 | 50.16 | 47.13 | 43.70 | 32.45 | 23.50 | 24.13 | 31.58 | a | |||||||||||
1940 | 11.87 | 17.07 | a | 23.48 | 28.23 | 36.77 | 44.57 | 49.61 | 46.52 | 43.53 | 32.33 | a | 19.00 | 21.10 | b | 31.17 | ||||||||||
1941 | ----- | z | 17.43 | 19.10 | b | ----- | z | ----- | z | ----- | z | ----- | z | 45.82 | c | 38.73 | h | 30.59 | b | 23.87 | 16.14 | b | 25.49 | f | ||
1942 | ----- | z | ----- | z | 18.23 | 29.53 | 33.71 | 41.23 | 48.10 | 46.15 | e | 36.73 | 29.81 | 22.52 | a | 19.52 | 32.55 | b | ||||||||
1943 | 14.80 | a | 17.75 | 17.60 | a | 31.52 | a | 32.26 | 41.47 | 46.48 | 47.65 | 36.20 | 28.87 | 20.17 | 13.55 | 29.03 | ||||||||||
1944 | 10.26 | 10.10 | 17.35 | 22.87 | 32.61 | 39.90 | a | 45.35 | 45.45 | 37.97 | 30.03 | 19.97 | 11.84 | 26.98 | ||||||||||||
1945 | 17.32 | 16.54 | 18.74 | 22.10 | 32.84 | 37.27 | 44.48 | 45.58 | 33.43 | 29.81 | 22.20 | 12.87 | 27.77 | |||||||||||||
1946 | 12.10 | 14.82 | 23.29 | 31.87 | 32.06 | 39.83 | 46.94 | 45.48 | 37.23 | 27.77 | 16.79 | a | 19.87 | 29.01 | ||||||||||||
1947 | 11.74 | 14.22 | a | 17.39 | 24.93 | 34.48 | 37.80 | 44.29 | 44.60 | a | 38.87 | 31.39 | 16.17 | a | 12.74 | 27.39 | ||||||||||
1948 | 11.10 | a | 8.17 | 10.37 | a | 24.31 | a | 32.90 | 39.07 | 43.42 | 43.29 | 36.70 | 25.13 | 17.00 | 11.26 | 25.23 | ||||||||||
1949 | 1.03 | 13.11 | 22.45 | 28.53 | 35.13 | 41.33 | 46.13 | 43.74 | 37.87 | 27.10 | a | 29.83 | 14.10 | 28.36 | ||||||||||||
1950 | 12.13 | 16.50 | 20.90 | 26.00 | 31.74 | 38.20 | 43.23 | 39.65 | 35.53 | 31.03 | 22.60 | 22.97 | 28.37 | |||||||||||||
1951 | 10.55 | 14.61 | 15.00 | 22.43 | 32.29 | 34.90 | 43.73 | a | 41.35 | 32.93 | 23.77 | 16.63 | 15.90 | 25.34 | ||||||||||||
1952 | 12.32 | 16.79 | 14.45 | 27.30 | 34.77 | 43.17 | 46.03 | 45.87 | 39.33 | 29.94 | 14.80 | 15.29 | 28.34 | |||||||||||||
1953 | 24.61 | 14.04 | 21.94 | 22.90 | 31.29 | 41.40 | 48.00 | 44.23 | 39.50 | 29.97 | 24.87 | 14.73 | a | 29.79 | ||||||||||||
1954 | 18.74 | 24.07 | 18.06 | 30.31 | a | 35.00 | 40.63 | 48.16 | 43.32 | 40.00 | 34.00 | 24.77 | 16.23 | 31.11 | ||||||||||||
1955 | 13.90 | 9.71 | 16.81 | 26.00 | 34.68 | 39.10 | 45.10 | 46.74 | 35.53 | 28.26 | 20.59 | a | 20.17 | b | 28.05 | |||||||||||
1956 | 17.65 | 9.72 | 18.07 | a | ----- | z | ----- | z | ----- | z | 46.82 | i | 44.16 | 38.53 | 29.77 | 19.72 | a | 18.97 | 24.57 | d | ||||||
1957 | 11.68 | 21.14 | 20.29 | 23.20 | 32.90 | 40.43 | 48.26 | 47.10 | 36.87 | 32.66 | b | 19.30 | 19.61 | 29.45 | ||||||||||||
1958 | 15.19 | 22.29 | 15.13 | a | 25.07 | a | ----- | z | 41.33 | 44.27 | a | 45.35 | 36.07 | a | 27.93 | a | 19.70 | 21.26 | 28.51 | a | ||||||
1959 | 15.74 | 13.86 | 20.10 | 26.38 | a | 35.13 | 43.60 | 43.55 | 44.58 | 34.25 | b | 25.29 | 17.41 | a | 14.61 | 27.88 | ||||||||||
1960 | 9.87 | 5.93 | 17.65 | 24.70 | 30.23 | a | 37.90 | 41.35 | 39.79 | c | 35.90 | 29.10 | 21.47 | 13.33 | a | 25.60 | ||||||||||
1961 | 12.80 | a | 15.07 | a | 20.23 | 25.17 | 34.06 | 40.30 | 44.10 | 44.42 | 32.60 | 25.52 | 14.21 | a | 10.90 | 26.61 | ||||||||||
1962 | 3.74 | 14.29 | 12.00 | 26.23 | 30.27 | e | 36.04 | c | 40.00 | 38.23 | 35.43 | i | 30.93 | c | 23.43 | 19.13 | 24.93 | a | ||||||||
1963 | 8.03 | 21.56 | c | 18.89 | d | 27.38 | a | 34.61 | 41.40 | 48.81 | 46.77 | 42.30 | 34.81 | 24.23 | 16.77 | 30.46 | ||||||||||
1964 | 12.94 | 11.55 | 14.23 | 25.93 | 34.97 | 40.20 | 48.74 | 43.94 | 36.73 | 28.77 | 21.87 | 16.13 | 28.00 | |||||||||||||
1965 | 18.90 | 15.64 | 10.13 | 28.53 | 34.35 | 40.77 | 47.48 | 43.00 | 33.67 | 33.23 | 26.12 | d | 18.23 | 29.17 | ||||||||||||
1966 | 11.61 | c | 9.70 | a | 20.65 | 25.03 | 36.00 | 41.50 | 50.81 | 46.00 | 40.90 | 30.45 | 24.09 | g | 16.23 | 29.90 | a | |||||||||
1967 | 18.77 | 16.79 | 23.71 | g | 26.13 | 33.10 | 39.15 | c | 47.35 | 43.94 | 37.80 | 29.77 | 19.60 | 8.81 | 29.20 | a | ||||||||||
1968 | 17.13 | ----- | z | ----- | z | ----- | z | ----- | z | 43.00 | k | ----- | z | 44.65 | 37.47 | 30.73 | a | 18.87 | g | 13.93 | a | 28.78 | g | |||
1969 | 20.61 | 14.71 | 12.74 | 29.57 | b | 35.71 | 39.72 | a | 48.90 | 49.06 | 40.50 | 23.81 | 20.72 | a | 16.81 | 29.41 | ||||||||||
1970 | 18.58 | 19.36 | 16.42 | 23.43 | 34.35 | 40.40 | 47.10 | 47.52 | 35.20 | 25.22 | d | 22.00 | 17.42 | 28.92 | ||||||||||||
1971 | 20.40 | a | 15.50 | 19.94 | 26.00 | 31.94 | 40.70 | 45.00 | 45.23 | ----- | z | ----- | z | ----- | z | 13.45 | 28.68 | c | ||||||||
1972 | 13.23 | 13.10 | 21.13 | 25.80 | 32.55 | 41.90 | 43.26 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.28 | e | ||||||
1973 | 12.50 | c | 11.54 | b | 16.75 | c | ----- | z | 32.15 | d | 41.17 | a | 43.07 | p | 45.39 | ----- | z | ----- | z | 31.43 | ----- | z | 27.28 | e | ||
1974 | 23.94 | 29.54 | 27.84 | 31.07 | 40.58 | 47.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.37 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.95 | 15.88 | 19.62 | 26.93 | 34.38 | 41.76 | 47.56 | 46.38 | 39.10 | 30.46 | 22.27 | 16.45 | 29.62 | |||||||||||||
S.D. | 4.95 | 4.50 | 4.27 | 2.69 | 2.29 | 2.44 | 2.53 | 2.65 | 2.95 | 2.83 | 3.81 | 4.32 | 1.81 | |||||||||||||
SKEW | -0.59 | 0.25 | 0.00 | 0.14 | 0.27 | -0.13 | -0.72 | -0.63 | -0.14 | -0.41 | 0.07 | 0.32 | -0.51 | |||||||||||||
MAX | 24.61 | 29.54 | 28.10 | 32.63 | 40.58 | 47.77 | 51.87 | 51.67 | 45.37 | 35.81 | 31.43 | 28.80 | 33.15 | |||||||||||||
MIN | 1.03 | 5.93 | 10.13 | 21.73 | 29.14 | 34.90 | 40.00 | 38.23 | 32.60 | 23.77 | 14.21 | 8.26 | 25.23 | |||||||||||||
YRS | 67 | 70 | 70 | 66 | 66 | 67 | 65 | 68 | 64 | 65 | 65 | 67 | 51 |