YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1898 | 35.42 | 48.57 | 51.68 | 68.20 | 69.87 | 83.93 | 89.68 | 88.58 | 79.97 | 67.42 | 50.57 | 35.58 | 64.12 | |||||||||||||
1899 | 39.03 | 41.50 | 53.61 | 66.37 | 71.10 | 81.50 | 88.61 | 84.06 | 82.27 | 61.94 | 57.43 | 41.19 | 64.05 | |||||||||||||
1900 | 44.45 | 47.57 | 61.74 | 62.10 | 76.58 | 88.33 | 90.52 | 84.90 | 75.55 | a | 67.13 | 52.50 | 44.39 | 66.31 | ||||||||||||
1901 | 41.81 | 48.68 | 53.39 | 64.87 | 76.03 | 81.67 | 93.45 | 87.77 | 78.07 | 68.32 | 57.83 | 43.71 | 66.30 | |||||||||||||
1902 | 47.06 | 51.18 | 51.45 | 66.67 | 75.29 | 86.33 | 87.65 | 87.26 | 79.31 | a | 68.84 | 50.63 | 41.03 | 66.06 | ||||||||||||
1903 | 39.58 | 38.11 | a | 53.39 | 62.80 | 70.55 | 82.10 | a | 88.29 | 88.38 | b | 76.48 | a | 67.45 | 57.07 | 44.12 | n | 65.84 | a | |||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | 36.23 | a | ----- | z | 52.87 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.55 | j |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.41 | b | 51.63 | 37.37 | a | 49.47 | i | |
1911 | 39.23 | 39.25 | 51.61 | 61.93 | a | 72.29 | 79.93 | 81.35 | 83.97 | 76.50 | 61.55 | 45.90 | 34.06 | 60.63 | ||||||||||||
1912 | 38.71 | 43.71 | a | 46.87 | 55.47 | 67.23 | 77.63 | 81.65 | 83.18 | t | 69.80 | 59.52 | 50.83 | 31.00 | 56.58 | a | ||||||||||
1913 | 32.26 | 39.61 | 47.68 | 62.52 | a | 73.61 | 78.86 | a | 84.55 | ----- | z | 72.63 | 60.03 | 51.13 | 33.94 | 57.89 | a | |||||||||
1914 | 38.48 | 39.75 | 53.13 | 61.31 | a | 70.84 | 78.07 | 82.90 | ----- | z | 77.67 | 63.61 | 57.57 | 35.45 | 59.89 | a | ||||||||||
1915 | 36.35 | 43.43 | 51.45 | 64.57 | 66.71 | 76.63 | 84.68 | ----- | z | 74.97 | 68.23 | 50.70 | 40.10 | 59.80 | a | |||||||||||
1916 | 39.65 | 47.62 | 57.97 | a | 61.43 | 69.16 | 80.50 | b | 85.84 | 80.62 | b | 75.93 | a | 61.48 | 48.21 | a | 33.87 | 61.86 | ||||||||
1917 | 33.39 | 37.67 | a | 45.77 | a | 55.43 | 61.52 | 78.33 | 86.13 | 81.32 | c | 75.90 | 64.94 | 56.66 | a | 48.74 | h | 61.55 | a | |||||||
1918 | 34.84 | 43.00 | 54.62 | b | 59.25 | r | 69.14 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.40 | h | ||
1919 | ----- | z | ----- | z | ----- | z | 64.69 | a | 71.97 | 81.30 | 86.81 | 84.65 | 77.83 | 61.87 | 49.17 | a | 41.60 | a | 68.88 | c | ||||||
1920 | 39.29 | 42.89 | b | 47.10 | 49.97 | 68.24 | b | 75.96 | d | 86.83 | a | 84.55 | 77.77 | ----- | z | ----- | z | 37.94 | 61.05 | b | ||||||
1921 | 43.06 | 46.21 | 58.65 | 58.80 | 72.87 | 86.10 | ----- | z | ----- | z | 81.73 | 72.26 | ----- | z | ----- | z | 64.96 | d | ||||||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.62 | a | 69.06 | 50.90 | 42.19 | 61.44 | h | |||
1923 | 49.44 | d | ----- | z | ----- | z | ----- | z | ----- | z | 82.79 | f | 88.45 | 82.61 | 74.03 | 62.29 | 53.77 | 41.90 | 64.64 | e | ||||||
1924 | 36.03 | 49.21 | 45.13 | 61.40 | 71.65 | 82.57 | 85.48 | 87.29 | ----- | z | 60.65 | 40.27 | 34.35 | 59.46 | a | |||||||||||
1925 | 33.77 | a | 43.96 | 54.55 | 65.03 | 76.55 | 78.70 | 87.20 | a | 79.94 | 74.37 | 62.90 | 50.50 | 43.16 | 62.55 | |||||||||||
1926 | 37.71 | 47.64 | 52.06 | 62.07 | 70.26 | 82.90 | 85.26 | 87.87 | 78.87 | 67.68 | 51.90 | 39.19 | 63.62 | |||||||||||||
1927 | 42.68 | 45.36 | 47.94 | 60.57 | 71.58 | 79.27 | 84.81 | 81.55 | 73.33 | 67.42 | 53.57 | 35.58 | e | 61.97 | ||||||||||||
1928 | 43.26 | 45.62 | 52.26 | 58.90 | 73.00 | a | 78.28 | a | 86.45 | 83.70 | a | 79.27 | 65.48 | 47.66 | a | 37.71 | 62.63 | |||||||||
1929 | 32.70 | k | 34.68 | 47.65 | 55.87 | 69.10 | 80.93 | 86.42 | 84.77 | ----- | z | 67.17 | a | 46.53 | 46.04 | d | 61.92 | b | ||||||||
1930 | 31.77 | a | 47.21 | 50.32 | 66.23 | 67.77 | 82.45 | a | 86.00 | 84.81 | 76.77 | 64.97 | 48.73 | 36.35 | 61.95 | |||||||||||
1931 | 39.52 | 46.32 | 50.42 | 63.47 | 70.16 | 83.33 | 90.19 | 86.13 | 79.50 | 66.52 | 46.80 | 36.43 | a | 63.23 | ||||||||||||
1932 | 32.13 | 45.48 | 48.65 | 61.17 | 72.39 | 79.43 | 85.81 | 83.19 | 78.90 | 65.03 | 53.63 | 34.52 | 61.69 | |||||||||||||
1933 | 37.84 | 35.29 | 51.58 | 57.47 | 65.90 | 84.07 | 88.19 | 84.84 | 80.07 | a | 71.74 | 54.28 | a | 47.16 | 63.20 | |||||||||||
1934 | 43.71 | 51.11 | 61.03 | 67.33 | 78.00 | 81.43 | 92.42 | 88.52 | 76.63 | 71.29 | 52.70 | 42.06 | 67.19 | |||||||||||||
1935 | 42.58 | 47.61 | 50.42 | 59.87 | 66.63 | a | 83.50 | 86.71 | 85.03 | 78.60 | 65.68 | 51.17 | 41.43 | a | 63.27 | |||||||||||
1936 | 39.13 | 41.76 | 54.71 | 64.40 | 77.00 | 85.63 | 88.61 | 85.77 | 76.63 | 65.29 | 52.47 | 41.42 | 64.40 | |||||||||||||
1937 | 31.06 | 42.43 | 52.16 | 60.93 | 74.71 | 80.17 | 86.19 | 86.58 | 78.50 | 66.42 | 53.43 | 41.58 | 62.85 | |||||||||||||
1938 | 39.52 | 43.79 | 49.39 | 62.50 | 67.73 | a | 79.70 | 85.35 | 85.81 | 77.93 | 66.77 | 44.69 | a | 39.45 | 61.89 | |||||||||||
1939 | 38.10 | 33.31 | b | 53.35 | 65.17 | 75.55 | 83.41 | a | 91.58 | 88.35 | 78.47 | 66.65 | 57.87 | 49.19 | 65.08 | |||||||||||
1940 | 37.00 | 44.24 | 56.74 | 61.86 | a | 77.16 | 87.37 | 91.97 | 87.93 | a | 77.83 | 66.40 | a | 47.53 | 41.32 | 64.78 | ||||||||||
1941 | 39.06 | 46.54 | 51.90 | 55.83 | 72.68 | 78.52 | a | 87.68 | 85.87 | a | 73.33 | 61.36 | c | 51.77 | 45.10 | 62.47 | ||||||||||
1942 | 38.84 | 39.59 | a | 46.97 | 62.43 | 71.42 | 83.86 | a | 91.52 | 87.58 | 79.87 | 68.23 | 56.00 | 46.52 | 64.40 | |||||||||||
1943 | 44.10 | 51.00 | 52.33 | a | 70.37 | 70.10 | 80.23 | 91.87 | 84.58 | 78.23 | 70.94 | 60.23 | 48.39 | 66.86 | ||||||||||||
1944 | 39.68 | 44.86 | 51.52 | 59.67 | 73.90 | 84.03 | 91.65 | 92.03 | 86.17 | 75.10 | 54.20 | 44.52 | 66.44 | |||||||||||||
1945 | 44.58 | 45.88 | b | 49.97 | 60.70 | 76.58 | 80.33 | 90.13 | 87.90 | 82.00 | 71.65 | 58.77 | 40.32 | 65.73 | ||||||||||||
1946 | 40.74 | 51.68 | 64.17 | y | 76.67 | 74.74 | 91.13 | 93.77 | 91.94 | 81.23 | 61.19 | 47.53 | 48.39 | 69.00 | a | |||||||||||
1947 | 35.65 | 47.14 | 51.23 | 58.73 | 77.77 | a | 77.23 | 87.16 | 83.29 | 80.60 | 67.13 | 44.53 | 39.23 | 62.47 | ||||||||||||
1948 | 37.68 | 40.69 | 44.87 | 62.53 | 73.87 | 79.93 | 87.19 | 84.16 | 81.20 | 66.32 | 42.97 | 41.52 | 61.91 | |||||||||||||
1949 | 32.23 | 38.71 | 52.03 | 63.90 | 70.06 | 77.40 | 87.32 | 86.74 | 80.33 | 62.81 | 59.57 | 41.90 | 62.75 | |||||||||||||
1950 | 39.65 | 46.46 | 51.55 | 64.57 | 70.16 | 82.60 | 84.32 | 84.97 | 75.67 | 75.23 | 55.50 | 46.32 | 64.75 | |||||||||||||
1951 | 39.84 | 44.25 | 51.74 | 61.90 | 71.84 | 79.10 | 89.77 | 84.00 | 79.67 | 63.45 | 45.70 | 37.39 | 62.39 | |||||||||||||
1952 | 38.94 | 39.90 | 44.23 | 63.23 | 72.52 | 83.07 | 86.68 | 84.58 | 79.67 | 72.10 | 46.63 | 38.55 | 62.51 | |||||||||||||
1953 | 43.77 | 44.18 | 54.23 | a | 59.47 | 65.84 | 83.83 | 88.84 | 83.16 | 82.07 | 66.71 | 52.87 | 37.77 | 63.56 | ||||||||||||
1954 | 45.33 | a | 52.71 | 50.65 | 68.62 | a | 74.77 | 81.93 | 88.37 | a | 84.65 | 77.03 | 67.45 | 55.70 | 39.74 | 65.58 | ||||||||||
1955 | 36.87 | 36.82 | 50.26 | 60.83 | 70.42 | 78.63 | 87.90 | 86.13 | 81.43 | 70.00 | 48.23 | 44.94 | 62.71 | |||||||||||||
1956 | 46.68 | 40.76 | 55.23 | 62.07 | 76.39 | 87.14 | a | 89.00 | 85.94 | 84.43 | 68.94 | 45.67 | 39.03 | 65.10 | ||||||||||||
1957 | 38.45 | 48.14 | 54.68 | 60.33 | 66.16 | 80.72 | a | 85.87 | 83.74 | 77.57 | 63.29 | 43.90 | 42.97 | 62.15 | ||||||||||||
1958 | 40.06 | 48.46 | 48.87 | 60.23 | 77.35 | 84.47 | 87.48 | 88.81 | 78.03 | 68.06 | 51.53 | 47.48 | 65.07 | |||||||||||||
1959 | 41.55 | 44.64 | 53.23 | 64.33 | 72.90 | 86.20 | 89.71 | 84.48 | 74.87 | 64.10 | a | 51.33 | 41.55 | 64.07 | ||||||||||||
1960 | 35.61 | 37.38 | 54.74 | 64.60 | 72.48 | 84.27 | 89.00 | 87.65 | 79.86 | a | 64.19 | 52.97 | 38.39 | 63.43 | ||||||||||||
1961 | 40.81 | 46.32 | 51.32 | 60.53 | 73.68 | 85.90 | 88.06 | 85.39 | 70.69 | a | 63.87 | 47.37 | 34.16 | 62.34 | ||||||||||||
1962 | 34.87 | 45.00 | 48.39 | 66.47 | 70.58 | 81.07 | 85.13 | 85.77 | 78.07 | 67.42 | 54.60 | 42.58 | 63.33 | |||||||||||||
1963 | 29.94 | 48.61 | 51.42 | 61.87 | 76.87 | 80.50 | 88.52 | 82.84 | 80.90 | 71.74 | 54.03 | 40.58 | 63.98 | |||||||||||||
1964 | 36.77 | 40.07 | 46.06 | 57.87 | 70.81 | 78.52 | a | 87.48 | 80.39 | 75.37 | 71.19 | 47.17 | 39.13 | 60.90 | ||||||||||||
1965 | 41.84 | 44.14 | 47.48 | 59.62 | a | 67.94 | 76.60 | 83.35 | 81.71 | 69.87 | 68.48 | 54.23 | 43.45 | 61.56 | ||||||||||||
1966 | 38.13 | 40.43 | 57.71 | 63.23 | 75.65 | 80.80 | 88.03 | 85.52 | 79.67 | 66.35 | 54.80 | 39.00 | 64.11 | |||||||||||||
1967 | 39.03 | 46.50 | 58.16 | 62.27 | 71.39 | 78.23 | 87.23 | 85.29 | 78.17 | a | 68.35 | 52.37 | 32.19 | 63.27 | ||||||||||||
1968 | 33.94 | 44.41 | 53.00 | 55.70 | 68.87 | 84.97 | 86.90 | a | 79.81 | 76.43 | 66.68 | 45.57 | 38.74 | 61.25 | ||||||||||||
1969 | 40.65 | 42.04 | 48.81 | 66.73 | 77.19 | 77.77 | 88.61 | 88.39 | 78.23 | 54.71 | 48.73 | 41.90 | 62.81 | |||||||||||||
1970 | 39.52 | 51.29 | 46.71 | 54.03 | 75.07 | a | 80.07 | 87.71 | 87.74 | 73.24 | a | 57.23 | 49.47 | 41.52 | 61.96 | |||||||||||
1971 | 39.26 | 42.11 | 52.58 | 60.41 | a | 69.26 | 83.00 | 87.71 | 86.45 | 74.47 | 62.58 | 47.33 | 35.00 | 61.68 | ||||||||||||
1972 | 41.06 | 48.79 | 60.03 | 63.90 | 74.16 | 83.37 | 89.32 | 85.74 | 76.03 | 59.84 | 40.43 | 34.71 | 63.12 | |||||||||||||
1973 | 32.39 | 40.21 | 49.16 | 56.60 | 70.68 | 79.13 | 85.55 | 84.26 | ----- | z | 64.81 | 52.17 | 38.55 | 59.41 | a | |||||||||||
1974 | 32.45 | 38.25 | 57.00 | 60.10 | 76.45 | 85.33 | 85.87 | 82.74 | 77.17 | 64.39 | 48.63 | 35.42 | 61.98 | |||||||||||||
1975 | 35.16 | 41.14 | 49.10 | 56.87 | 66.65 | 77.53 | 85.10 | 83.13 | 75.67 | 67.26 | 48.93 | 40.48 | 60.58 | |||||||||||||
1976 | 36.50 | a | 47.83 | ----- | z | 60.73 | 72.48 | 81.53 | 89.00 | a | 82.94 | 75.43 | 61.97 | 50.40 | 41.06 | 63.63 | a | |||||||||
1977 | 34.84 | 46.89 | 50.06 | 66.03 | 71.06 | 86.70 | 87.19 | 85.61 | 77.70 | 67.29 | 51.07 | 43.90 | 64.03 | |||||||||||||
1978 | 38.06 | 41.36 | 55.19 | 61.93 | 68.48 | 83.53 | 89.48 | 85.60 | a | 78.73 | 69.71 | 51.03 | 31.00 | a | 62.84 | |||||||||||
1979 | 29.19 | 39.50 | 49.06 | 61.83 | 69.35 | 80.10 | 86.42 | 82.58 | 82.20 | 68.81 | 43.70 | 41.29 | 61.17 | |||||||||||||
1980 | 37.81 | 46.76 | 47.71 | 62.37 | 66.37 | a | 86.13 | 90.32 | 86.26 | 79.17 | 65.13 | 52.17 | 49.42 | 64.13 | ||||||||||||
1981 | 47.55 | 49.18 | 51.68 | 69.57 | 69.77 | 87.90 | 90.19 | 86.52 | 80.33 | 60.87 | 54.33 | 43.97 | a | 65.99 | ||||||||||||
1982 | 38.55 | 42.32 | 52.70 | a | 60.54 | d | 69.84 | 82.03 | a | ----- | z | 86.37 | d | 75.29 | b | 61.28 | b | 47.52 | a | 40.75 | c | 59.74 | a | |||
1983 | 43.38 | b | 46.38 | b | 49.45 | 54.59 | a | 67.28 | b | 78.87 | 87.19 | 88.45 | 82.72 | a | 67.97 | b | 48.89 | c | 36.67 | a | 62.65 | |||||
1984 | 36.32 | 41.92 | c | 50.62 | b | 57.79 | a | 77.17 | a | 79.07 | c | 88.58 | 87.00 | 77.97 | a | 57.46 | e | 50.07 | a | 40.38 | b | 62.03 | ||||
1985 | 38.82 | c | 40.67 | a | 52.63 | a | 63.77 | 73.07 | a | 87.14 | a | 89.48 | 89.68 | 73.37 | 65.69 | b | 46.80 | 42.29 | 63.62 | |||||||
1986 | 47.14 | b | 48.04 | a | 59.07 | c | 62.96 | b | 71.62 | b | 85.50 | 86.33 | a | 87.86 | b | 71.33 | 63.57 | c | 49.08 | e | 42.25 | c | 64.56 | |||
1987 | 40.45 | b | 45.26 | a | 50.57 | a | 67.17 | 71.45 | b | 85.40 | 88.77 | a | 85.31 | b | 79.67 | 70.19 | 50.10 | 38.21 | c | 64.38 | ||||||
1988 | 36.58 | 46.18 | a | 53.33 | a | 65.07 | 74.47 | a | 88.13 | 92.29 | 89.16 | 77.37 | 72.97 | 49.79 | a | 41.97 | 65.61 | |||||||||
1989 | 39.00 | a | 44.32 | 60.71 | 68.43 | 76.87 | 84.43 | 93.43 | a | 85.13 | 81.89 | b | 66.16 | 55.27 | 43.81 | 66.62 | ||||||||||
1990 | 43.03 | 48.39 | 57.03 | 64.90 | 73.52 | 90.00 | 89.97 | a | 87.48 | 82.23 | 67.68 | 51.34 | a | 35.57 | a | 65.93 | ||||||||||
1991 | 35.68 | 47.46 | 49.93 | a | 59.53 | 75.00 | 83.87 | 89.84 | 88.26 | 80.32 | b | 69.90 | 47.32 | b | 39.58 | 63.89 | ||||||||||
1992 | 38.73 | a | 46.69 | 56.39 | 70.00 | 75.71 | 83.17 | a | 86.13 | 85.77 | 81.74 | g | 72.06 | 44.23 | 39.73 | a | 63.51 | a | ||||||||
1993 | 42.43 | a | 43.64 | 55.52 | 61.45 | a | 72.90 | a | 82.17 | a | 87.71 | c | 83.94 | 78.67 | 63.20 | a | 45.62 | a | 39.10 | 63.03 | ||||||
1994 | 42.13 | 43.57 | 60.10 | 64.87 | 78.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.75 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.81 | 44.24 | 52.10 | 62.21 | 72.04 | 82.13 | 87.86 | 85.51 | 77.94 | 66.01 | 50.65 | 40.24 | 63.53 | |||||||||||||
S.D. | 4.13 | 4.14 | 3.92 | 4.13 | 3.53 | 3.36 | 2.51 | 2.47 | 3.20 | 4.03 | 4.26 | 4.12 | 1.64 | |||||||||||||
SKEW | 0.08 | -0.33 | 0.41 | 0.16 | -0.24 | 0.36 | 0.08 | -0.00 | -0.27 | -0.18 | -0.02 | 0.01 | 0.38 | |||||||||||||
MAX | 49.44 | 52.71 | 61.74 | 76.67 | 78.10 | 91.13 | 93.77 | 92.03 | 86.17 | 75.23 | 60.23 | 49.42 | 67.19 | |||||||||||||
MIN | 29.19 | 33.31 | 44.23 | 49.97 | 61.52 | 75.96 | 81.35 | 79.81 | 69.80 | 54.71 | 40.27 | 31.00 | 60.58 | |||||||||||||
YRS | 88 | 87 | 86 | 87 | 88 | 86 | 85 | 82 | 84 | 88 | 87 | 86 | 70 |