YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.76 | e | 55.39 | c | 30.33 | 24.63 | a | 45.53 | h | |
1896 | 16.53 | a | 24.72 | 24.89 | c | 51.21 | a | 71.07 | a | 78.25 | b | 82.00 | i | 80.21 | b | 66.38 | d | 53.65 | 17.07 | 22.55 | 46.05 | a | ||||
1897 | 10.77 | a | 18.44 | a | 23.70 | a | 52.10 | 69.20 | a | 73.04 | g | 80.42 | 75.52 | 78.89 | b | 58.13 | a | ----- | z | ----- | z | 51.91 | c | |||
1898 | 26.94 | 28.32 | 38.42 | 59.31 | a | 67.87 | 76.27 | d | 82.92 | f | 81.55 | b | 73.18 | b | 50.32 | c | 32.68 | h | 22.50 | a | 52.47 | b | ||||
1899 | 15.50 | a | 13.96 | 23.68 | c | ----- | z | 64.83 | a | 77.50 | b | 84.67 | a | ----- | z | 70.40 | 54.76 | b | 47.47 | 22.54 | c | 47.53 | b | |||
1900 | 28.00 | b | 13.68 | 32.53 | a | 65.90 | a | 77.77 | a | 82.86 | a | 84.68 | 85.24 | f | 68.57 | 59.92 | e | 29.53 | 24.68 | 51.65 | a | |||||
1901 | 17.96 | d | 19.21 | 35.75 | c | 60.24 | a | 75.71 | c | ----- | z | 83.30 | u | 83.87 | 69.07 | 63.07 | b | 39.57 | b | 19.87 | a | 48.43 | b | |||
1902 | 24.03 | b | 24.30 | a | 39.62 | b | 53.80 | e | 68.55 | 72.27 | 82.16 | 77.90 | 69.04 | c | 57.93 | a | 37.86 | i | 19.43 | c | 53.55 | a | ||||
1903 | 19.13 | 18.43 | 35.03 | b | 54.97 | a | 70.43 | a | 79.03 | a | 80.26 | 77.40 | a | 66.77 | 61.03 | a | 35.60 | 23.03 | b | 51.76 | ||||||
1904 | 15.00 | d | 11.28 | 31.53 | a | 46.07 | b | 69.00 | a | 75.46 | f | 77.74 | d | 77.42 | 67.93 | a | 58.35 | e | 49.85 | c | 28.64 | f | 50.42 | b | ||
1905 | 12.79 | c | 21.11 | 45.00 | b | 52.83 | a | 62.48 | 72.20 | 79.52 | 83.10 | 76.33 | 54.47 | a | 44.79 | a | 27.18 | c | 52.65 | |||||||
1906 | 26.54 | e | 17.11 | a | 29.53 | a | 57.90 | 63.03 | 73.07 | 80.40 | a | 80.14 | b | 77.27 | 57.67 | a | 36.55 | a | 19.71 | c | 51.58 | |||||
1907 | 6.04 | c | 21.62 | b | 34.87 | a | 42.50 | 59.03 | b | 75.80 | 81.74 | 78.58 | 69.24 | a | 61.00 | a | 42.86 | a | 31.00 | w | 52.12 | a | ||||
1908 | 26.62 | b | 23.21 | a | 33.33 | a | 57.79 | a | 66.07 | a | 73.93 | a | 83.62 | e | 82.36 | c | 81.00 | b | 60.17 | b | 51.96 | d | 34.67 | s | 58.19 | a |
1909 | 15.54 | e | 19.96 | d | 34.73 | a | 47.59 | a | 67.07 | a | 78.25 | b | 82.67 | a | 85.20 | a | 75.08 | d | 59.80 | f | 45.19 | c | 18.76 | b | 51.82 | a |
1910 | 19.37 | a | 17.48 | a | 50.90 | 61.80 | 65.97 | 83.30 | 90.90 | 81.10 | 72.43 | 70.45 | b | 35.13 | 23.73 | a | 56.05 | |||||||||
1911 | 8.60 | a | 22.29 | 43.90 | 54.43 | 71.61 | 83.73 | 90.29 | 79.13 | 69.73 | 54.90 | a | 29.50 | 25.57 | a | 52.81 | ||||||||||
1912 | 3.47 | a | 26.14 | a | 33.50 | a | 61.24 | a | 69.26 | 78.83 | 83.47 | a | 78.00 | 66.47 | 66.23 | a | 46.69 | a | 29.81 | 53.59 | ||||||
1913 | 14.40 | a | 16.32 | 31.74 | 58.73 | 64.61 | 82.13 | 81.13 | 84.81 | 72.69 | a | 53.52 | 44.10 | 35.61 | 53.32 | |||||||||||
1914 | 24.87 | a | 12.61 | 38.76 | b | 51.10 | 71.74 | 75.97 | 87.13 | 80.83 | b | 73.80 | 64.13 | ----- | z | ----- | z | 58.09 | b | |||||||
1915 | 12.25 | k | 27.29 | d | 35.87 | 64.03 | a | 62.32 | 70.43 | 75.74 | 81.13 | 67.72 | e | 58.68 | 39.83 | 25.32 | 55.31 | a | ||||||||
1916 | 9.61 | 18.79 | 28.37 | a | 49.66 | a | 61.84 | 69.33 | 86.48 | 80.79 | g | 68.47 | 53.10 | a | 42.97 | 18.04 | e | 46.06 | a | |||||||
1917 | 11.32 | 9.56 | a | 33.06 | 48.67 | 68.58 | 74.00 | 86.13 | 82.16 | 69.90 | 45.55 | 45.13 | 12.97 | a | 48.92 | |||||||||||
1918 | 9.00 | 22.33 | a | 49.19 | 57.07 | 64.60 | a | 73.38 | d | 80.39 | 85.23 | 70.90 | 61.97 | 41.50 | 30.58 | 53.84 | ||||||||||
1919 | 27.45 | 19.81 | a | 31.39 | 54.07 | 69.65 | 78.61 | b | 85.07 | b | 83.00 | 76.00 | a | 51.75 | c | 25.97 | a | 17.26 | 51.67 | |||||||
1920 | 17.03 | a | 24.55 | 39.83 | a | 47.12 | d | 69.29 | 74.10 | 82.00 | 85.48 | 74.63 | 68.71 | 39.97 | 27.40 | a | 54.18 | |||||||||
1921 | 28.07 | a | 33.43 | 45.10 | 63.00 | 69.94 | 80.93 | 86.10 | b | 82.39 | 72.37 | 62.43 | a | 34.13 | 28.60 | a | 57.21 | |||||||||
1922 | 18.83 | a | 13.19 | a | 38.83 | a | 53.17 | 72.48 | 78.50 | 80.48 | 87.42 | 76.70 | 62.81 | 40.24 | a | 18.68 | 53.44 | |||||||||
1923 | 23.19 | 17.78 | a | 28.10 | a | 51.13 | 66.07 | c | 80.73 | 83.32 | 77.61 | 74.23 | 60.00 | 47.83 | a | 32.30 | a | 53.53 | ||||||||
1924 | 13.45 | b | 30.07 | a | 34.90 | 53.90 | 58.90 | 71.87 | 77.00 | 81.03 | 68.73 | 65.65 | 35.60 | e | 7.71 | c | 49.90 | |||||||||
1925 | 13.10 | a | 23.00 | c | 37.55 | 62.13 | 65.29 | 70.23 | 79.97 | 83.90 | 72.20 | 42.16 | 37.52 | a | 23.26 | 50.86 | ||||||||||
1926 | 25.35 | 30.37 | a | 38.45 | 58.80 | 76.33 | a | 73.03 | 83.55 | 79.47 | a | 67.13 | 54.94 | 29.50 | 20.26 | 53.10 | ||||||||||
1927 | 21.07 | a | 23.36 | 39.93 | a | 52.20 | 60.26 | 75.63 | 78.84 | 79.06 | 74.79 | a | 63.42 | 32.68 | b | 12.45 | 51.14 | |||||||||
1928 | 24.30 | a | 30.41 | b | 39.00 | a | 48.27 | 75.50 | a | 73.43 | 80.19 | 79.84 | 65.72 | a | 59.97 | a | 40.38 | a | 34.93 | c | 54.33 | |||||
1929 | 2.39 | 11.04 | a | 40.23 | 55.80 | 64.81 | 78.03 | 86.48 | 86.10 | 68.69 | a | 60.26 | 33.72 | a | 24.39 | c | 50.99 | |||||||||
1930 | 12.16 | 32.21 | 33.26 | 61.20 | 68.35 | 78.03 | 89.06 | 88.23 | 73.79 | a | 55.73 | a | 45.93 | 32.88 | g | 58.00 | a | |||||||||
1931 | 32.68 | 39.11 | 41.00 | 61.00 | 70.71 | 81.20 | 85.81 | 80.52 | 79.30 | 66.39 | 49.10 | 29.23 | 59.67 | |||||||||||||
1932 | 25.13 | 29.55 | 33.42 | 55.30 | 74.32 | 78.77 | 82.90 | a | 86.06 | 73.90 | 53.45 | 31.21 | a | 24.84 | 54.07 | |||||||||||
1933 | 22.43 | a | 20.25 | 44.52 | j | 40.24 | e | 68.87 | 87.13 | 85.13 | 83.97 | 77.70 | 55.61 | 34.69 | a | 17.60 | a | 53.97 | a | |||||||
1934 | 20.57 | c | 23.30 | a | 37.32 | 52.60 | 84.29 | 80.03 | 90.58 | 84.87 | 69.13 | 62.83 | a | 46.86 | a | 21.23 | a | 56.14 | ||||||||
1935 | 11.90 | a | 32.08 | b | 37.84 | 48.70 | 65.35 | 77.43 | 91.13 | 81.39 | 73.20 | 61.45 | 24.45 | a | 20.83 | a | 52.15 | |||||||||
1936 | -5.47 | a | -2.45 | 31.61 | 50.23 | 77.35 | 82.67 | 97.06 | 86.71 | 84.07 | 50.97 | 32.43 | 25.00 | 50.85 | ||||||||||||
1937 | 1.68 | 16.21 | 31.90 | 47.33 | 71.53 | a | 79.23 | 89.00 | 92.26 | 77.87 | 46.19 | 35.30 | 14.97 | 50.29 | ||||||||||||
1938 | 17.26 | 14.54 | ----- | z | 47.55 | s | 63.74 | 78.52 | a | ----- | z | ----- | z | 81.60 | y | 61.13 | ----- | z | ----- | z | 47.04 | g | ||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.52 | 85.71 | 75.43 | 53.77 | 49.13 | 38.35 | 64.99 | f | ||||||
1940 | 15.37 | a | 25.24 | 30.13 | a | 51.53 | 68.81 | 77.47 | 86.35 | 78.00 | 78.60 | 63.42 | 32.64 | b | 27.94 | 52.96 | ||||||||||
1941 | 19.71 | 21.30 | a | 34.84 | 57.83 | 73.61 | 77.50 | 85.19 | 83.00 | 70.00 | 57.19 | 40.71 | b | 31.84 | 54.39 | |||||||||||
1942 | 30.13 | 24.25 | 44.16 | 62.13 | 64.23 | a | 73.37 | 81.32 | 81.58 | ----- | z | 74.69 | r | ----- | z | 19.97 | 53.46 | c | ||||||||
1943 | ----- | z | ----- | z | 31.14 | c | 61.83 | a | 66.06 | 76.25 | b | 86.32 | 83.35 | 70.23 | 63.83 | a | 37.20 | 36.03 | 61.23 | b | ||||||
1944 | 35.26 | 28.19 | c | 31.93 | b | 55.32 | b | 71.31 | b | 78.07 | 81.68 | 81.28 | b | 69.77 | d | 65.17 | b | 40.07 | 27.83 | a | 55.49 | |||||
1945 | 21.11 | d | 26.73 | b | 46.45 | b | ----- | z | ----- | z | ----- | z | 80.37 | a | 81.77 | 69.55 | a | 60.00 | 35.57 | 18.35 | 48.88 | c | ||||
1946 | 20.47 | a | 22.67 | a | 47.45 | 59.33 | 77.86 | x | 78.26 | c | 84.27 | a | 80.65 | 68.70 | 53.71 | 39.45 | a | 22.19 | 52.47 | a | ||||||
1947 | 29.61 | 19.68 | 33.60 | a | 49.23 | 63.32 | 71.57 | 83.58 | 87.29 | 71.07 | ----- | z | ----- | z | ----- | z | 56.55 | c | ||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.87 | 80.90 | 62.21 | b | ----- | z | ----- | z | 75.99 | i | ||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.52 | 71.80 | 58.58 | 46.43 | 21.48 | 56.96 | g | |||||
1950 | 2.10 | a | 20.39 | 30.58 | 42.57 | 61.06 | 78.37 | 79.87 | 78.42 | 72.53 | 59.97 | 33.53 | 17.10 | 48.04 | ||||||||||||
1951 | 12.94 | 22.50 | 26.84 | 51.33 | 73.16 | 74.00 | 81.77 | 77.03 | 66.63 | 54.87 | 31.10 | 15.77 | 49.00 | |||||||||||||
1952 | 12.48 | 26.48 | 29.65 | 61.13 | 71.77 | 80.57 | 83.00 | 81.65 | 78.30 | 57.68 | 42.80 | 26.90 | 54.37 | |||||||||||||
1953 | 22.03 | a | 29.11 | 38.77 | 49.60 | 66.61 | 75.97 | 81.90 | b | 84.26 | 73.43 | 67.94 | 45.67 | 26.58 | 55.16 | |||||||||||
1954 | 9.68 | 36.67 | a | 35.13 | 55.00 | 64.06 | 76.38 | a | 83.45 | 81.52 | 68.00 | 57.50 | c | 47.20 | 29.42 | 53.67 | ||||||||||
1955 | 20.19 | 17.11 | 29.58 | 65.30 | 75.10 | 77.17 | 85.03 | a | 86.06 | 73.50 | 63.97 | 28.67 | 14.50 | a | 53.01 | |||||||||||
1956 | 17.16 | 18.07 | 29.90 | 46.40 | 68.94 | 83.73 | 80.86 | c | 82.16 | 70.57 | 66.94 | 40.20 | 28.48 | 52.78 | ||||||||||||
1957 | 15.04 | c | 23.22 | a | 38.71 | 55.13 | 69.74 | 76.13 | 85.81 | e | 79.94 | 67.80 | 56.52 | 37.10 | 32.57 | a | 53.14 | |||||||||
1958 | 27.84 | 24.93 | 41.26 | 58.10 | 75.16 | 72.67 | 78.84 | 83.84 | 73.10 | 62.87 | 40.43 | b | 21.84 | 55.07 | ||||||||||||
1959 | 12.81 | 21.89 | 44.23 | 58.70 | 69.45 | 81.07 | 85.23 | 86.30 | a | 72.93 | 50.61 | 30.27 | 34.68 | 54.01 | ||||||||||||
1960 | 18.94 | 22.07 | 28.19 | 54.07 | a | 73.44 | f | 76.40 | 85.10 | 83.71 | 77.39 | g | 62.10 | b | 41.50 | 19.45 | b | 49.15 | b | |||||||
1961 | 20.03 | 28.05 | f | 44.50 | a | 49.48 | a | 68.80 | a | 84.40 | 82.90 | 88.19 | 69.23 | 61.89 | c | 41.63 | 18.16 | 57.20 | a | |||||||
1962 | 15.47 | a | 16.11 | 29.42 | 50.80 | 66.35 | 75.17 | 80.00 | 84.39 | 69.87 | 63.48 | 42.93 | 29.61 | 51.97 | ||||||||||||
1963 | 13.52 | 24.54 | 48.65 | 56.40 | 67.13 | 79.93 | 85.97 | 82.87 | 76.93 | 71.87 | 46.00 | a | 17.71 | 55.96 | ||||||||||||
1964 | 25.06 | 32.66 | 32.61 | 57.37 | 74.19 | 76.07 | 85.84 | 79.71 | 70.57 | 61.13 | 41.66 | a | 12.61 | 54.12 | ||||||||||||
1965 | 10.71 | 20.07 | 28.34 | b | 51.13 | 68.52 | 77.33 | 80.00 | 81.00 | 59.93 | 62.39 | 38.60 | 30.13 | 50.68 | ||||||||||||
1966 | 4.45 | 17.93 | 39.06 | 47.30 | 67.10 | 78.80 | 85.94 | 79.19 | 74.27 | 59.90 | 34.03 | 22.81 | 50.90 | |||||||||||||
1967 | 19.81 | 19.96 | 40.87 | 49.80 | 64.55 | 76.37 | 83.68 | 83.68 | 76.27 | 57.48 | 39.73 | 25.00 | 53.10 | |||||||||||||
1968 | 18.26 | 20.29 | a | 47.32 | 57.30 | 65.61 | 76.20 | 83.58 | 83.06 | 72.53 | 57.94 | 38.70 | 17.35 | 53.18 | ||||||||||||
1969 | 7.20 | a | 21.43 | 28.55 | 56.30 | 71.94 | 71.47 | 81.90 | 88.52 | 74.33 | 50.42 | 41.90 | 25.19 | 51.60 | ||||||||||||
1970 | 10.71 | 24.71 | 29.33 | a | 51.50 | 65.74 | 82.40 | 87.65 | 85.68 | 74.80 | 58.26 | 35.23 | 21.39 | 52.28 | ||||||||||||
1971 | 10.71 | 22.32 | 35.68 | 58.57 | 68.29 | 79.60 | 79.45 | 84.58 | 76.20 | e | 59.13 | 36.80 | 21.61 | 52.74 | ||||||||||||
1972 | 16.52 | 16.21 | a | 34.35 | 50.20 | 71.58 | 80.87 | 81.00 | 83.39 | 71.23 | 57.13 | 35.10 | 14.52 | 51.01 | ||||||||||||
1973 | 23.16 | 28.64 | 43.77 | 56.70 | 71.39 | 81.30 | 85.19 | 86.52 | 69.70 | 63.84 | 34.83 | 17.29 | 55.19 | |||||||||||||
1974 | 12.16 | 22.75 | 31.23 | 54.37 | 63.57 | a | 80.60 | 90.19 | 78.19 | 71.67 | 63.77 | 39.73 | 30.90 | 53.26 | ||||||||||||
1975 | 23.29 | 21.00 | 31.41 | i | 42.70 | 70.29 | 76.73 | 86.23 | 81.26 | 70.13 | 61.48 | 41.70 | 27.92 | e | 54.79 | a | ||||||||||
1976 | 20.84 | 34.48 | 36.81 | 60.93 | 74.74 | 83.55 | a | 90.26 | 92.39 | 81.76 | a | 56.69 | b | 38.40 | 19.60 | a | 57.54 | |||||||||
1977 | 8.26 | 32.37 | a | 43.47 | a | 67.00 | a | 81.07 | a | 80.88 | d | 86.41 | b | 77.89 | c | ----- | z | ----- | z | ----- | z | 14.37 | a | 54.64 | c | |
1978 | ----- | z | 17.59 | a | 34.68 | ----- | z | 73.77 | a | 80.27 | 83.48 | b | 85.45 | 77.80 | 61.67 | a | 34.82 | b | ----- | z | 61.06 | c | ||||
1979 | 5.18 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.18 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.96 | 22.22 | 35.96 | 54.44 | 68.87 | 77.57 | 83.90 | 82.66 | 72.42 | 59.09 | 38.59 | 23.31 | 53.07 | |||||||||||||
S.D. | 7.99 | 6.74 | 6.32 | 5.87 | 4.90 | 3.75 | 3.75 | 3.45 | 4.27 | 5.47 | 6.55 | 6.35 | 2.23 | |||||||||||||
SKEW | -0.19 | -0.26 | 0.34 | -0.11 | 0.44 | -0.01 | 0.60 | 0.37 | 0.26 | -0.45 | -0.44 | 0.15 | 0.31 | |||||||||||||
MAX | 35.26 | 39.11 | 50.90 | 67.00 | 84.29 | 87.13 | 97.06 | 92.39 | 84.07 | 71.87 | 51.96 | 38.35 | 59.67 | |||||||||||||
MIN | -5.47 | -2.45 | 23.68 | 40.24 | 58.90 | 69.33 | 75.74 | 75.52 | 59.93 | 42.16 | 17.07 | 7.71 | 48.04 | |||||||||||||
YRS | 78 | 78 | 77 | 76 | 77 | 76 | 77 | 79 | 80 | 80 | 75 | 74 | 53 |