YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1894 | 9.06 | f | 13.09 | e | 34.80 | f | 46.57 | b | 58.88 | c | 71.10 | 73.84 | 70.98 | 61.36 | b | 49.09 | d | 29.26 | i | 26.33 | d | 52.36 | c | |||
1895 | 5.54 | h | 11.19 | a | 30.46 | g | 53.55 | 58.36 | f | 66.23 | b | 68.06 | 69.91 | d | 64.35 | c | 44.84 | f | 32.41 | g | 20.80 | f | 55.55 | f | ||
1896 | 19.48 | h | 24.35 | e | 22.76 | j | 47.94 | e | 61.71 | 66.07 | b | 69.24 | 69.79 | 55.47 | 45.09 | d | 18.83 | l | 24.21 | g | 54.96 | d | ||||
1897 | 9.95 | i | 15.23 | d | 22.18 | c | 43.88 | e | 55.48 | c | 64.03 | 71.89 | 63.97 | 68.96 | d | 51.50 | d | 29.89 | g | 15.09 | h | 50.79 | c | |||
1898 | 21.35 | a | 18.79 | d | 32.19 | e | 45.06 | c | 55.39 | c | 67.80 | b | 69.89 | 68.27 | 62.33 | 43.46 | d | 26.95 | b | 14.46 | f | 46.50 | a | |||
1899 | 15.52 | h | 5.05 | f | 13.05 | i | 44.63 | d | 55.02 | b | 65.54 | c | 69.85 | 70.15 | 59.02 | 51.13 | d | 42.53 | 20.81 | e | 53.19 | c | ||||
1900 | 23.00 | b | 9.56 | d | 27.58 | 50.18 | b | 60.71 | b | 66.98 | 69.05 | 73.79 | 59.68 | b | 57.21 | 28.62 | 23.86 | c | 45.85 | |||||||
1901 | 18.50 | 16.11 | 30.97 | 45.55 | 57.88 | b | 67.67 | 78.89 | 70.65 | 57.72 | 50.95 | 32.50 | 14.58 | f | 47.94 | a | ||||||||||
1902 | 19.26 | 16.63 | a | 34.34 | 42.90 | 58.81 | 62.13 | 70.48 | 65.73 | 54.90 | 49.82 | a | 35.03 | 14.13 | a | 43.68 | ||||||||||
1903 | 17.27 | 15.09 | e | 31.83 | d | 44.43 | 56.61 | 63.12 | 68.82 | 64.94 | 57.33 | 49.94 | 31.07 | 15.03 | 42.96 | |||||||||||
1904 | 8.92 | 8.59 | 30.60 | 40.82 | 56.81 | 64.67 | 68.16 | 66.11 | 60.79 | b | 49.52 | 43.25 | 24.81 | 43.59 | ||||||||||||
1905 | 13.36 | b | 11.11 | 38.26 | d | 43.64 | b | 53.26 | b | 63.43 | 66.63 | 69.89 | 62.67 | ----- | z | 34.98 | c | 25.05 | a | 43.84 | a | |||||
1906 | 20.30 | f | 20.48 | d | 22.18 | f | 47.68 | 56.34 | c | 63.20 | 67.40 | 69.34 | 62.18 | 46.26 | 31.13 | c | 19.54 | d | 48.36 | b | ||||||
1907 | 7.50 | d | 18.46 | e | 31.74 | 35.55 | b | 46.79 | b | 63.45 | 69.26 | 67.16 | 58.65 | 45.79 | 32.07 | 23.48 | b | 41.66 | ||||||||
1908 | 18.78 | b | 17.35 | f | 29.78 | b | 45.70 | c | 54.52 | b | 61.98 | 68.39 | 65.50 | 66.22 | c | 44.79 | 34.57 | a | 21.80 | f | 49.02 | b | ||||
1909 | 14.33 | e | 16.89 | 28.31 | 37.33 | 53.86 | b | 66.00 | b | 68.82 | 72.39 | 58.77 | 45.79 | 33.17 | c | 9.00 | c | 42.05 | ||||||||
1910 | 12.87 | 9.71 | b | 43.93 | b | 49.11 | c | 51.27 | a | 66.23 | 72.95 | 70.31 | 61.75 | b | 52.43 | b | 29.07 | b | 19.12 | e | 44.90 | |||||
1911 | 11.00 | f | 19.67 | d | 35.61 | d | 43.20 | b | 61.94 | 74.71 | a | 73.16 | 66.97 | 60.88 | d | 43.58 | 22.98 | f | 21.06 | 50.08 | b | |||||
1912 | -2.66 | b | 15.00 | d | 21.62 | b | 46.36 | b | 56.90 | 62.52 | 69.21 | 66.13 | 56.60 | d | 46.94 | 35.46 | b | 21.30 | f | 43.10 | a | |||||
1913 | 13.02 | h | 11.88 | d | 25.35 | g | 44.83 | d | 53.11 | 67.22 | 69.31 | 71.03 | 59.83 | c | 42.33 | d | 35.76 | e | 27.94 | f | 50.59 | c | ||||
1914 | 19.92 | e | 7.89 | j | 29.14 | c | 42.27 | d | 56.86 | b | 65.14 | b | 72.32 | 67.21 | c | 59.13 | c | 51.60 | b | 34.29 | b | 7.12 | e | 45.91 | a | |
1915 | 9.98 | d | 20.45 | f | 22.55 | b | 51.23 | 50.21 | b | 59.00 | b | 64.32 | a | 61.63 | e | 57.46 | b | 49.02 | b | 32.55 | 19.39 | d | 43.40 | a | ||
1916 | 4.07 | i | 8.62 | 24.76 | d | 39.72 | 55.20 | c | 59.48 | 75.23 | a | 68.37 | 56.72 | 42.37 | 30.11 | c | 10.22 | h | 46.06 | b | ||||||
1917 | 5.19 | d | 3.37 | e | 23.40 | 38.03 | 51.07 | c | 60.55 | 69.98 | 65.29 | 56.32 | b | 35.45 | b | 35.65 | f | 4.42 | g | 40.87 | b | |||||
1918 | 0.57 | h | 15.21 | i | 36.72 | d | 40.59 | a | 58.07 | a | 65.68 | 68.65 | 69.85 | 54.62 | a | 51.50 | a | 35.93 | c | 28.33 | d | 50.99 | b | |||
1919 | 26.05 | c | 16.86 | g | 30.00 | d | 45.53 | 57.32 | 68.48 | 75.68 | 71.77 | 65.77 | 45.12 | a | 31.07 | g | 13.83 | a | 49.96 | b | ||||||
1920 | 13.74 | 20.60 | 32.82 | a | 38.92 | 58.40 | 68.47 | a | 71.65 | 69.08 | 65.30 | 56.74 | 33.47 | 22.45 | 45.97 | |||||||||||
1921 | 24.63 | 27.85 | a | 38.05 | 50.38 | 60.35 | 74.02 | 76.39 | 70.16 | b | 64.38 | 52.65 | 27.60 | 24.57 | a | 49.25 | ||||||||||
1922 | 15.86 | b | 14.16 | 34.23 | 47.15 | 61.13 | 70.87 | 70.23 | a | 73.72 | a | 67.13 | 54.81 | 38.52 | 18.26 | 47.17 | ||||||||||
1923 | 20.94 | 15.54 | 24.26 | 46.13 | 58.23 | 69.63 | 75.87 | 68.60 | 63.75 | 47.76 | 38.97 | 30.76 | 46.70 | |||||||||||||
1924 | 9.98 | 23.24 | 28.84 | 47.28 | 51.03 | a | 64.67 | 68.82 | 69.84 | 57.67 | 56.61 | 35.27 | 9.71 | 43.58 | ||||||||||||
1925 | 13.08 | 22.96 | 37.05 | 54.27 | 56.79 | 66.85 | 71.63 | 72.34 | 66.57 | a | 36.90 | 31.40 | 17.21 | 45.59 | ||||||||||||
1926 | 16.81 | 25.63 | a | 27.56 | 43.95 | 62.53 | 64.62 | 72.85 | 70.18 | 57.47 | 47.44 | 27.78 | a | 15.66 | 44.37 | |||||||||||
1927 | 18.18 | a | 25.62 | 35.70 | a | 46.65 | 55.60 | a | 65.60 | 71.10 | 67.23 | a | 64.32 | 54.95 | a | 31.52 | 10.71 | 45.60 | ||||||||
1928 | 21.06 | 23.95 | 35.11 | 39.88 | 61.50 | 63.18 | 72.73 | 70.81 | 60.05 | 51.31 | 35.67 | 27.26 | 46.88 | |||||||||||||
1929 | 4.94 | 9.50 | 34.63 | 47.53 | 55.47 | 65.23 | 72.57 | a | 71.27 | a | 59.10 | a | 50.61 | 29.57 | 21.29 | 43.48 | ||||||||||
1930 | 7.16 | 31.41 | a | 34.40 | 50.35 | 58.00 | 67.31 | a | 76.77 | c | 73.90 | 62.22 | 48.29 | 37.82 | 26.02 | 47.80 | ||||||||||
1931 | 28.60 | 33.61 | a | 33.76 | 50.47 | 56.18 | a | 74.12 | 74.98 | 71.53 | 70.17 | 54.34 | 38.73 | 29.48 | 51.33 | |||||||||||
1932 | 15.65 | a | 22.03 | 23.53 | a | 47.50 | 59.97 | 70.00 | 74.24 | 70.92 | 60.67 | 47.85 | 30.00 | a | 17.71 | 45.01 | ||||||||||
1933 | 28.08 | 15.11 | 31.55 | 45.95 | 57.32 | 75.55 | 74.65 | 68.47 | 66.64 | b | 47.06 | 32.33 | 18.26 | 46.75 | ||||||||||||
1934 | 20.03 | 21.34 | 30.50 | 46.33 | 69.27 | 71.08 | 74.08 | 67.69 | 56.13 | 54.87 | 39.35 | 19.10 | b | 47.48 | ||||||||||||
1935 | 14.69 | 27.54 | a | 36.97 | 43.68 | 53.38 | a | 64.20 | 78.31 | 71.87 | 63.27 | 46.39 | 27.31 | a | 18.79 | 45.53 | ||||||||||
1936 | 4.24 | -1.67 | 32.40 | a | 42.05 | 63.06 | 66.29 | a | 80.69 | 74.17 | b | 64.92 | 46.45 | 31.38 | b | 23.23 | 43.93 | |||||||||
1937 | 4.44 | 14.50 | a | 28.61 | 43.63 | 60.45 | 65.98 | 74.82 | 76.32 | 63.45 | 46.62 | a | 31.45 | 16.77 | 43.92 | |||||||||||
1938 | 14.26 | 18.95 | 37.05 | a | 47.62 | 55.58 | 67.84 | a | 74.37 | 74.87 | 65.27 | 57.06 | 32.15 | 22.81 | 47.32 | |||||||||||
1939 | 23.61 | 12.70 | 32.76 | 45.18 | 66.02 | 69.73 | 74.80 | a | 70.03 | 66.38 | 48.63 | 39.33 | 30.84 | 48.33 | ||||||||||||
1940 | 8.02 | b | 20.69 | 26.77 | 43.42 | f | 56.34 | 68.45 | 75.16 | 68.73 | 65.50 | c | 54.19 | 27.63 | g | 24.29 | c | 46.81 | b | |||||||
1941 | 18.15 | h | 16.69 | d | 28.89 | d | 49.21 | b | 64.21 | 68.46 | b | 73.39 | 72.83 | a | 62.25 | b | 50.76 | b | 34.74 | c | 27.80 | k | 52.14 | b | ||
1942 | 18.00 | b | 19.88 | d | 33.05 | b | 50.05 | 55.61 | c | 65.98 | 70.27 | 69.05 | 55.14 | b | 48.11 | 33.55 | b | 15.35 | e | 44.50 | ||||||
1943 | 6.25 | g | 20.00 | g | 24.89 | c | 44.50 | 53.06 | 67.39 | c | 73.05 | 70.42 | 56.02 | 47.87 | d | 29.92 | d | 24.96 | g | 51.90 | c | |||||
1944 | 27.78 | b | 21.76 | d | 23.61 | 40.61 | b | 62.43 | b | 68.76 | c | 69.32 | 67.88 | a | 59.80 | b | 49.85 | 35.66 | h | 17.67 | j | 49.18 | b | |||
1945 | 18.20 | c | 19.96 | d | 38.72 | b | 42.68 | b | 50.12 | b | 60.70 | b | 69.35 | 68.93 | b | 59.90 | d | 48.50 | 30.22 | g | 11.25 | i | 47.71 | b | ||
1946 | 15.93 | d | 18.33 | b | 42.61 | h | 50.07 | 53.12 | b | 67.02 | c | 71.95 | 67.26 | 57.92 | f | 48.39 | 31.20 | c | 25.04 | f | 47.03 | c | ||||
1947 | 21.23 | g | 13.10 | c | 27.25 | e | 41.70 | b | 52.90 | 62.34 | a | 71.63 | 76.63 | 61.93 | b | 56.60 | b | 25.71 | f | 18.54 | d | 48.26 | b | |||
1948 | 12.90 | g | 13.67 | f | 26.05 | b | 48.85 | 56.98 | 64.73 | b | 73.05 | a | 71.37 | 65.97 | 48.60 | 32.94 | c | 17.34 | c | 50.59 | b | |||||
1949 | 10.08 | 11.67 | a | 28.29 | 44.02 | 59.89 | 68.80 | 73.92 | 71.76 | 56.22 | 49.21 | 37.45 | 20.34 | 44.30 | ||||||||||||
1950 | 6.02 | 17.48 | 23.84 | 36.38 | 53.73 | 66.74 | a | 67.81 | 65.79 | 60.88 | 51.94 | 28.08 | 14.03 | 41.06 | ||||||||||||
1951 | 11.16 | 19.70 | 17.37 | 38.85 | 59.13 | a | 62.13 | 69.35 | 67.81 | 54.45 | 47.06 | 26.17 | 15.31 | 40.71 | ||||||||||||
1952 | 11.37 | 24.46 | a | 23.65 | 46.90 | 57.11 | 69.50 | 72.19 | 68.55 | 61.60 | 44.35 | a | 34.87 | 21.47 | 44.67 | |||||||||||
1953 | 15.45 | 20.52 | 30.35 | 39.32 | 55.92 | 68.77 | 71.15 | 71.48 | 61.07 | a | 54.65 | 37.27 | 20.08 | 45.50 | ||||||||||||
1954 | 8.80 | a | 31.36 | 25.87 | 45.82 | 51.76 | 69.00 | 73.63 | 69.19 | 60.72 | 46.31 | 37.45 | 22.42 | a | 45.19 | |||||||||||
1955 | 15.90 | 11.43 | 25.44 | 52.58 | 61.95 | 64.67 | 76.95 | 75.76 | 61.10 | 48.87 | 23.10 | 10.30 | c | 44.00 | ||||||||||||
1956 | 10.63 | 11.38 | 23.82 | 39.93 | 57.21 | 72.10 | 68.73 | 69.40 | 58.28 | 54.42 | a | 29.93 | 22.67 | a | 43.21 | |||||||||||
1957 | 7.03 | 20.30 | a | 28.10 | 43.28 | 53.77 | 65.12 | 75.68 | 67.60 | 56.85 | 46.53 | 31.95 | 27.06 | 43.61 | ||||||||||||
1958 | 21.90 | 14.11 | 29.10 | 44.78 | 58.94 | 60.98 | 68.23 | 71.24 | 62.17 | 50.60 | 34.58 | 15.45 | 44.34 | |||||||||||||
1959 | 9.89 | 11.95 | 30.94 | 44.32 | 58.29 | 69.73 | 70.40 | 73.00 | 59.53 | 41.61 | 22.58 | 28.03 | 43.36 | |||||||||||||
1960 | 12.53 | 14.78 | 14.63 | 43.97 | 54.94 | 63.72 | 71.10 | 69.95 | 61.52 | 49.42 | 35.63 | 18.03 | 42.52 | |||||||||||||
1961 | 12.84 | 20.86 | 32.60 | 39.17 | 53.29 | 66.83 | 69.87 | 71.11 | 58.42 | 48.82 | 32.17 | 15.50 | 43.46 | |||||||||||||
1962 | 9.13 | 15.82 | 22.10 | 41.98 | 61.81 | 65.88 | 68.69 | 69.11 | 57.00 | a | 51.40 | 37.18 | 21.11 | 43.44 | ||||||||||||
1963 | 4.19 | 14.84 | 34.76 | 47.87 | 56.92 | 70.15 | 71.98 | 69.13 | 62.17 | 58.85 | 38.55 | 11.24 | 45.05 | |||||||||||||
1964 | 21.10 | 23.41 | 23.10 | 45.05 | 60.98 | 67.70 | 74.94 | 66.31 | 58.02 | 47.56 | 34.27 | 12.77 | 44.60 | |||||||||||||
1965 | 10.02 | 11.23 | 17.11 | 41.43 | 59.79 | 66.60 | 71.13 | 68.29 | 51.70 | 50.19 | 32.03 | 27.32 | 42.24 | |||||||||||||
1966 | 3.81 | 14.27 | 34.97 | 39.82 | 53.08 | 67.05 | 74.95 | a | 66.43 | a | 59.57 | 47.05 | 29.08 | 17.87 | 42.33 | |||||||||||
1967 | 15.87 | 11.46 | 32.27 | 43.98 | 51.95 | 64.97 | 69.44 | 67.21 | 58.93 | 46.26 | 31.32 | 20.87 | 42.88 | |||||||||||||
1968 | 13.40 | 15.55 | 36.37 | 46.02 | 52.19 | 67.43 | 70.42 | 68.74 | 58.18 | 48.61 | 32.92 | 16.19 | 43.84 | |||||||||||||
1969 | 6.26 | 17.61 | 18.24 | 45.55 | 58.34 | 60.42 | 71.81 | 70.92 | 60.20 | 43.11 | 32.65 | 20.02 | 42.09 | |||||||||||||
1970 | 3.89 | 15.79 | 23.31 | 43.32 | 57.87 | 68.80 | 71.94 | 69.06 | 59.55 | 45.97 | 30.13 | 15.48 | 42.09 | |||||||||||||
1971 | 8.08 | 16.12 | 27.37 | 46.53 | 55.65 | 70.83 | 68.66 | 70.32 | 60.65 | 51.34 | ----- | z | ----- | z | 47.56 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.92 | 17.21 | 29.41 | 44.80 | 56.93 | 66.53 | 71.81 | 69.63 | 60.64 | 49.01 | 33.04 | 19.69 | 44.59 | |||||||||||||
S.D. | 6.87 | 6.32 | 5.83 | 3.97 | 3.94 | 3.47 | 3.08 | 2.80 | 3.71 | 4.41 | 4.13 | 5.53 | 2.14 | |||||||||||||
SKEW | 0.14 | 0.10 | -0.21 | -0.01 | 0.30 | 0.22 | 0.40 | 0.09 | 0.24 | -0.24 | -0.00 | -0.04 | 0.76 | |||||||||||||
MAX | 28.60 | 33.61 | 43.93 | 54.27 | 69.27 | 75.55 | 80.69 | 76.63 | 70.17 | 58.85 | 43.25 | 30.84 | 51.33 | |||||||||||||
MIN | -2.66 | -1.67 | 14.63 | 35.55 | 46.79 | 59.00 | 64.32 | 61.63 | 51.70 | 35.45 | 22.58 | 7.12 | 40.71 | |||||||||||||
YRS | 64 | 70 | 71 | 77 | 77 | 78 | 78 | 78 | 77 | 76 | 66 | 62 | 50 |