YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.33 | g | 56.57 | 42.77 | 49.67 | j | ||
1895 | 39.32 | 41.46 | 51.10 | 62.77 | 68.65 | 76.31 | a | 80.94 | 81.06 | 76.97 | a | ----- | z | 46.20 | 37.19 | 60.18 | a | |||||||||
1896 | 44.57 | a | 45.28 | 52.61 | 60.73 | 70.94 | ----- | z | 83.71 | 82.23 | 72.43 | 62.65 | 48.29 | b | 44.42 | 60.71 | a | |||||||||
1897 | 39.39 | 39.50 | 44.74 | 59.77 | 70.29 | 77.53 | 82.03 | 83.81 | 72.40 | 59.06 | 54.07 | 38.84 | 60.12 | |||||||||||||
1898 | 35.13 | 48.04 | 49.16 | 65.70 | 66.87 | 80.77 | 85.32 | 86.29 | 78.87 | 65.35 | 50.73 | 33.77 | 62.17 | |||||||||||||
1899 | 34.03 | 39.00 | 51.35 | 65.80 | 70.48 | 81.70 | 86.00 | 81.71 | 80.60 | 63.32 | 55.67 | 41.42 | 62.59 | |||||||||||||
1900 | 46.68 | 48.46 | 61.74 | 58.07 | 75.55 | 85.40 | 88.23 | 85.81 | 74.70 | 68.29 | 54.93 | 46.35 | 66.18 | |||||||||||||
1901 | 43.13 | 47.46 | 55.65 | 65.53 | 74.32 | 80.34 | a | 90.33 | d | 86.97 | 80.13 | 69.26 | 59.37 | 45.90 | 66.53 | |||||||||||
1902 | 46.45 | 47.93 | 47.68 | 66.77 | 71.14 | i | 88.14 | a | 85.26 | 85.00 | 78.33 | 67.61 | 51.37 | 40.35 | 64.08 | a | ||||||||||
1903 | 37.61 | 37.89 | 49.84 | 59.00 | 69.52 | 77.47 | 85.36 | i | 85.81 | 74.40 | 69.32 | 58.83 | 46.45 | 60.56 | a | |||||||||||
1904 | 41.06 | 52.83 | 55.81 | 65.30 | 72.00 | 78.97 | 85.00 | 81.58 | 77.93 | 63.61 | 58.20 | 41.03 | 64.44 | |||||||||||||
1905 | 36.06 | 37.14 | 50.32 | 56.40 | 64.32 | 79.53 | 83.00 | h | 84.29 | 74.70 | 63.84 | 49.50 | 37.68 | 57.62 | a | |||||||||||
1906 | 39.09 | h | 47.00 | 47.68 | 58.20 | 67.81 | 78.50 | 80.29 | 79.68 | 72.50 | 63.35 | 49.53 | 44.84 | 62.67 | a | |||||||||||
1907 | 39.23 | 51.89 | 53.61 | 59.83 | 62.45 | 74.47 | 83.87 | 78.90 | 74.72 | a | 64.90 | 50.63 | 41.00 | 61.29 | ||||||||||||
1908 | 38.52 | 40.90 | h | 53.03 | 61.03 | 63.81 | 77.40 | 83.55 | 78.30 | d | 76.17 | a | 65.67 | j | 51.17 | 38.00 | 62.10 | b | ||||||||
1909 | 40.42 | 40.04 | 46.74 | d | 57.10 | 65.89 | d | 82.23 | d | 84.74 | 79.71 | 71.93 | 68.16 | f | 49.90 | 28.65 | 58.85 | a | ||||||||
1910 | 35.71 | g | 40.07 | 58.29 | j | 63.03 | 72.87 | 83.32 | h | 86.74 | 83.16 | 78.87 | 63.54 | g | 53.04 | b | 45.43 | h | 68.25 | e | ||||||
1911 | 41.40 | a | 40.36 | 50.96 | h | 59.04 | c | 69.88 | e | 77.53 | 76.77 | 80.77 | a | 73.31 | n | 59.58 | 46.69 | a | 33.87 | h | 61.34 | c | ||||
1912 | 41.77 | r | 46.59 | 45.87 | 54.07 | 68.26 | 76.90 | 80.52 | 80.23 | 70.90 | 58.58 | 52.00 | 36.84 | 60.98 | a | |||||||||||
1913 | 36.45 | 39.50 | 44.94 | 60.27 | 72.48 | 77.93 | 84.20 | a | 84.03 | 70.80 | 61.23 | 50.60 | 34.13 | 59.71 | ||||||||||||
1914 | 37.65 | 41.24 | c | 54.37 | a | 61.47 | 70.58 | 78.90 | 80.74 | 82.19 | 77.07 | 62.97 | a | 58.00 | 35.65 | 61.73 | ||||||||||
1915 | 34.71 | 40.50 | 48.65 | 60.80 | 65.33 | a | 77.70 | 82.59 | b | 82.48 | 73.33 | f | 68.03 | 51.57 | 41.65 | 59.45 | a | |||||||||
1916 | 37.19 | 43.86 | 55.80 | a | 62.08 | d | 70.32 | 81.27 | 82.53 | a | 78.74 | 74.29 | f | 59.92 | f | 51.53 | 38.23 | 60.16 | b | |||||||
1917 | 32.96 | c | 37.71 | 43.61 | 56.31 | a | 59.73 | e | 83.26 | c | 87.10 | 82.97 | 78.37 | 69.84 | 59.40 | 50.71 | 61.83 | |||||||||
1918 | 35.90 | 44.04 | b | 53.85 | e | 58.53 | 69.06 | 86.16 | e | 81.90 | 81.96 | d | 75.30 | 66.03 | 45.87 | 35.48 | 61.17 | |||||||||
1919 | 36.23 | 37.11 | 46.77 | 61.73 | 72.16 | 81.58 | d | 81.75 | g | 85.00 | d | 75.77 | 57.87 | 50.70 | 42.03 | 58.81 | a | |||||||||
1920 | 41.58 | 46.59 | 49.29 | 54.43 | 69.61 | 77.07 | 84.23 | 79.71 | 73.53 | 60.10 | 50.17 | f | 37.22 | h | 63.61 | b | ||||||||||
1921 | 40.77 | 47.07 | 55.29 | 57.43 | 69.45 | 78.67 | 82.68 | 79.58 | 78.47 | 68.68 | f | 57.30 | 45.33 | a | 62.91 | a | ||||||||||
1922 | 36.74 | 40.68 | 46.59 | d | 56.60 | 69.81 | 82.53 | ----- | z | 85.06 | 80.50 | ----- | z | 45.29 | i | 41.10 | 59.96 | c | ||||||||
1923 | 45.32 | 42.68 | 46.94 | 57.57 | 71.67 | d | 80.33 | 86.00 | 79.71 | 71.20 | 61.52 | b | 51.56 | e | 40.29 | 61.23 | ||||||||||
1924 | 36.87 | 48.66 | 45.53 | a | 60.60 | 72.65 | 84.50 | 85.36 | c | 84.74 | 78.27 | 66.65 | 57.27 | 35.81 | 63.07 | |||||||||||
1925 | 35.19 | 47.36 | 55.73 | i | 64.63 | 74.03 | 77.13 | 84.12 | f | 77.19 | 72.10 | 58.39 | 42.27 | 34.65 | 58.29 | b | ||||||||||
1926 | 31.19 | 42.86 | 50.45 | b | 53.87 | 64.92 | f | 75.60 | 74.48 | 78.87 | 73.32 | e | 60.55 | 43.80 | 30.65 | 55.97 | a | |||||||||
1927 | 37.36 | f | 40.18 | 47.39 | 58.13 | 68.04 | d | 70.87 | 74.90 | 73.97 | a | 64.05 | h | 58.77 | e | 44.80 | 27.97 | 56.50 | b | |||||||
1928 | 34.29 | 39.34 | 48.58 | e | 59.55 | j | 64.83 | g | 75.07 | 77.81 | 75.52 | 75.03 | 59.03 | 39.60 | 30.21 | b | 55.45 | b | ||||||||
1929 | 29.31 | b | 32.93 | a | 46.52 | 54.10 | 64.03 | 78.03 | 87.13 | 81.84 | 74.17 | 65.68 | 52.14 | h | 51.00 | i | 61.37 | b | ||||||||
1930 | 34.05 | i | 48.43 | 52.29 | 68.47 | 67.55 | 84.07 | 84.23 | 84.26 | 77.30 | 66.77 | 50.31 | a | 44.58 | 66.20 | a | ||||||||||
1931 | 46.23 | 48.64 | 53.39 | 63.53 | 70.58 | 83.63 | 88.23 | 85.94 | 77.53 | 69.45 | i | 48.47 | 36.52 | 63.88 | a | |||||||||||
1932 | 34.06 | 46.31 | 51.74 | 62.10 | 71.48 | 79.50 | 86.13 | 85.07 | a | 79.70 | 65.90 | 58.50 | 35.16 | 62.97 | ||||||||||||
1933 | 37.68 | 36.86 | 55.23 | 56.90 | 65.45 | 81.87 | 86.87 | a | 83.97 | 80.21 | a | 69.74 | 57.43 | 45.16 | 63.11 | |||||||||||
1934 | 43.55 | i | 46.57 | g | 61.77 | 67.25 | b | 76.87 | a | 81.03 | 86.68 | 82.97 | 73.09 | h | 68.35 | 47.73 | 37.77 | 67.83 | c | |||||||
1935 | 35.10 | a | 40.86 | 45.84 | 54.27 | 59.61 | 78.90 | 78.87 | 77.32 | 70.73 | 57.55 | 42.10 | 34.52 | 56.31 | ||||||||||||
1936 | 34.29 | 37.34 | 50.47 | a | 58.97 | 69.32 | 80.00 | 79.42 | 78.23 | 75.90 | 65.35 | 57.57 | 45.16 | 61.00 | ||||||||||||
1937 | 33.61 | 42.04 | 49.29 | 61.77 | 74.00 | 79.97 | 84.06 | 86.26 | 79.83 | 66.65 | 55.70 | 42.48 | 62.97 | |||||||||||||
1938 | 40.16 | 42.54 | 47.74 | 60.63 | 67.26 | 79.53 | 83.26 | 85.13 | 75.77 | 65.42 | 46.93 | 45.23 | 61.63 | |||||||||||||
1939 | 40.10 | 33.00 | 53.35 | 64.67 | 73.74 | 81.00 | 84.00 | 82.81 | 74.13 | 62.29 | 54.77 | 47.10 | 62.58 | |||||||||||||
1940 | 37.03 | 41.10 | 53.39 | 59.97 | 71.77 | 83.40 | 86.94 | 83.97 | 74.03 | 66.68 | 48.40 | 42.03 | 62.39 | |||||||||||||
1941 | 42.78 | d | 47.07 | 50.90 | 53.33 | 69.35 | 74.50 | 83.19 | 81.77 | 71.70 | 60.45 | 53.47 | 43.65 | 61.01 | ||||||||||||
1942 | 41.68 | 40.21 | 48.23 | 60.43 | 68.65 | 79.20 | 84.58 | 82.35 | 77.87 | 64.83 | h | 55.70 | 45.03 | 62.18 | a | |||||||||||
1943 | 41.61 | 48.21 | 51.77 | 67.23 | 68.93 | d | 77.63 | 85.29 | 82.61 | 78.13 | 65.26 | 54.40 | 41.58 | 63.56 | ||||||||||||
1944 | 38.32 | 42.97 | 47.77 | 54.73 | 67.81 | 76.90 | 83.74 | 84.03 | 77.87 | 67.06 | 49.23 | 43.00 | 61.12 | |||||||||||||
1945 | 40.32 | 45.32 | 48.23 | 57.00 | 70.06 | 75.97 | 85.29 | 84.96 | c | 76.97 | 66.48 | 52.30 | 37.64 | i | 63.90 | a | ||||||||||
1946 | 41.00 | 46.50 | 54.32 | 66.27 | 66.97 | 83.03 | 85.19 | 81.61 | 77.80 | 61.23 | 49.83 | 48.65 | 63.53 | |||||||||||||
1947 | 38.06 | 50.64 | 54.90 | 60.40 | 72.10 | 76.07 | 87.61 | 81.65 | 79.77 | 68.00 | 45.87 | 41.35 | e | 63.03 | ||||||||||||
1948 | 44.00 | 42.72 | 45.29 | 63.67 | 71.61 | 77.43 | 86.23 | a | 83.81 | 80.07 | 66.90 | 48.20 | 42.29 | 62.69 | ||||||||||||
1949 | 35.19 | 40.18 | 52.39 | 64.80 | 68.19 | 76.87 | 84.74 | 84.42 | 80.07 | 63.81 | 61.60 | 43.26 | 62.96 | |||||||||||||
1950 | 41.20 | a | 50.96 | 53.13 | 64.73 | 69.71 | 81.57 | 83.03 | 83.58 | 74.27 | 75.16 | 58.07 | 50.29 | 65.48 | ||||||||||||
1951 | 42.84 | 46.04 | 53.55 | 61.43 | 71.97 | 79.37 | 89.00 | 83.42 | 80.17 | 64.90 | 48.77 | 37.45 | 63.24 | |||||||||||||
1952 | 39.48 | 42.66 | 45.71 | 63.10 | 71.55 | 80.77 | 84.45 | 84.55 | 79.90 | 74.29 | 50.30 | c | 41.84 | 63.22 | ||||||||||||
1953 | 48.55 | 47.32 | 56.35 | 60.40 | 66.52 | 83.73 | 86.42 | 83.94 | 81.10 | 66.74 | d | 56.80 | 41.16 | 64.92 | ||||||||||||
1954 | 45.71 | 56.82 | 52.10 | a | 69.60 | 74.55 | 82.20 | 87.87 | 84.84 | 77.20 | 70.68 | 60.17 | 45.62 | b | 67.28 | |||||||||||
1955 | 40.17 | a | 41.12 | b | 55.10 | 60.07 | 69.47 | a | 80.30 | 83.84 | 85.23 | 80.83 | 73.10 | 53.43 | 43.93 | a | 63.88 | |||||||||
1956 | 48.77 | 43.69 | 56.65 | 63.80 | 75.55 | 85.27 | 86.16 | 84.00 | 85.03 | 70.43 | a | 52.40 | 46.68 | 66.54 | ||||||||||||
1957 | 41.93 | a | 51.71 | 55.13 | 58.87 | 66.13 | 81.10 | 83.68 | 82.39 | 80.00 | 63.10 | 47.43 | 47.23 | 63.22 | ||||||||||||
1958 | 45.66 | b | 51.46 | 48.10 | 59.67 | 76.94 | 84.67 | 86.65 | 87.94 | 77.67 | 70.10 | 56.63 | 53.65 | 66.59 | ||||||||||||
1959 | 47.87 | 46.36 | 56.48 | 66.24 | a | 72.68 | 84.53 | 88.42 | g | 83.61 | 77.67 | 66.68 | 55.67 | 47.84 | 64.15 | a | ||||||||||
1960 | 38.03 | 39.83 | 56.65 | 64.97 | 72.61 | 84.37 | 87.81 | 88.77 | 82.00 | 65.68 | 56.37 | 41.58 | 64.89 | |||||||||||||
1961 | 45.45 | 50.25 | 53.81 | 63.17 | 74.48 | 84.93 | 87.16 | 84.48 | 74.17 | 67.43 | a | 50.37 | 38.77 | 64.54 | ||||||||||||
1962 | 41.13 | 47.68 | 50.68 | 68.43 | 72.32 | 81.73 | 86.23 | 87.16 | 78.43 | 69.26 | 56.83 | 47.87 | 65.65 | |||||||||||||
1963 | 34.32 | 50.29 | 53.48 | 63.50 | 77.55 | 80.83 | 89.32 | 82.48 | 81.30 | 72.42 | 55.73 | 44.90 | 65.51 | |||||||||||||
1964 | 42.23 | 44.48 | 48.90 | 59.37 | 71.81 | 80.57 | 87.58 | 82.68 | 75.93 | 73.81 | 51.30 | 40.55 | 63.27 | |||||||||||||
1965 | 43.23 | 45.89 | 49.61 | 59.63 | 69.17 | a | 77.70 | 85.90 | 82.74 | 72.77 | 71.90 | 55.67 | 45.00 | 63.27 | ||||||||||||
1966 | 39.42 | 41.36 | 58.48 | 65.93 | 75.80 | a | 81.83 | 88.84 | 85.71 | 79.40 | 69.10 | 58.00 | 41.71 | 65.47 | ||||||||||||
1967 | 40.03 | 50.14 | 60.16 | 61.63 | 71.68 | 77.83 | 87.13 | 81.65 | 77.13 | 69.74 | 58.23 | 36.61 | 64.33 | |||||||||||||
1968 | 40.68 | 49.03 | 55.58 | 57.83 | 69.42 | 83.30 | 84.03 | 78.39 | 75.93 | 67.39 | 49.23 | 38.55 | 62.45 | |||||||||||||
1969 | 41.42 | 42.00 | 47.03 | 64.67 | 73.45 | 75.50 | 85.26 | 85.39 | 76.67 | 58.06 | 52.53 | 44.27 | a | 62.19 | ||||||||||||
1970 | 42.52 | 52.93 | 48.84 | 56.20 | 72.84 | 77.83 | 86.48 | 86.23 | 74.00 | 60.30 | a | 52.97 | 42.74 | 62.82 | ||||||||||||
1971 | 39.71 | c | 47.07 | 57.23 | a | 63.96 | b | 70.23 | 82.80 | 88.83 | g | 85.63 | d | 76.93 | 65.45 | b | 51.83 | 37.48 | b | 61.67 | a | |||||
1972 | 43.42 | e | 52.86 | 64.33 | a | 66.23 | 75.71 | 83.39 | b | 89.13 | 86.04 | f | 77.24 | a | 64.92 | f | 45.80 | e | 38.80 | a | 63.69 | b | ||||
1973 | 37.41 | b | 44.46 | d | 48.69 | b | 58.96 | e | 72.00 | a | 80.87 | 81.94 | n | 85.29 | 76.39 | b | 69.68 | 55.70 | 44.25 | c | 61.25 | a | ||||
1974 | 38.39 | c | 43.50 | h | 60.29 | c | 64.30 | 79.59 | b | 84.62 | a | 85.61 | h | 82.48 | 78.88 | e | 66.04 | d | 53.22 | c | 39.87 | 64.77 | b | |||
1975 | 36.19 | 42.77 | b | 47.32 | 55.21 | f | 66.58 | 79.43 | 85.10 | 83.52 | b | 75.80 | 68.26 | 57.81 | i | 41.29 | 62.63 | b | ||||||||
1976 | 41.68 | 48.55 | 53.03 | a | 62.17 | 71.48 | 81.93 | 87.55 | 82.32 | 74.10 | 64.06 | 55.60 | 46.77 | 64.10 | ||||||||||||
1977 | 36.00 | 50.04 | 51.37 | a | 65.63 | 70.29 | 85.93 | 86.10 | 85.82 | c | 79.19 | i | 68.88 | g | 53.97 | 45.03 | 63.02 | b | ||||||||
1978 | 38.16 | 43.00 | 55.39 | 62.70 | 66.94 | 82.73 | 88.71 | 83.61 | 76.47 | 69.90 | 50.10 | a | 33.87 | a | 62.63 | |||||||||||
1979 | 30.55 | 41.07 | 49.23 | 61.40 | 68.45 | 79.90 | a | 86.52 | 82.42 | 84.80 | o | 71.23 | 44.73 | 44.71 | 60.02 | a | ||||||||||
1980 | 37.48 | 44.41 | 45.29 | 57.73 | 64.53 | a | 84.47 | 88.17 | a | 83.94 | 78.13 | 66.10 | a | 54.03 | 50.10 | 62.87 | ||||||||||
1981 | 50.65 | 51.68 | 48.74 | 65.60 | 65.52 | 83.03 | 86.17 | a | 83.23 | 77.60 | 61.58 | 55.37 | 44.61 | 64.48 | ||||||||||||
1982 | 36.00 | 43.00 | 49.68 | 59.77 | 68.26 | 80.23 | 86.16 | 84.03 | 73.83 | 62.16 | 47.43 | 38.71 | 60.77 | |||||||||||||
1983 | 41.71 | 45.07 | 49.39 | 54.23 | 68.48 | 78.40 | 87.77 | 85.94 | 79.03 | 66.17 | a | 48.59 | a | 38.13 | 61.91 | |||||||||||
1984 | 39.32 | 45.17 | 52.74 | 57.87 | 76.87 | 80.93 | a | 88.00 | 84.06 | 77.77 | 54.13 | 50.00 | 40.84 | 62.31 | ||||||||||||
1985 | 40.35 | 43.00 | 50.23 | 64.77 | 71.32 | 85.17 | 86.93 | a | 86.94 | 71.87 | 65.06 | 46.30 | 41.39 | 62.78 | ||||||||||||
1986 | 48.94 | 48.54 | 58.68 | 60.57 | 71.90 | 81.27 | 82.77 | 85.58 | 69.60 | 61.74 | 49.57 | 43.84 | 63.58 | |||||||||||||
1987 | 38.90 | 44.50 | 50.42 | 66.27 | 69.87 | 84.63 | 87.48 | 82.77 | 77.57 | 68.97 | 50.13 | 38.61 | 63.34 | |||||||||||||
1988 | 34.23 | 47.07 | 53.83 | a | 64.53 | 73.39 | c | 83.57 | b | 87.19 | 83.87 | 76.17 | 72.19 | 50.27 | 41.13 | 63.95 | ||||||||||
1989 | 38.23 | 44.57 | 59.52 | 69.80 | 76.97 | 84.27 | 90.32 | 84.55 | 81.60 | 66.47 | a | 56.80 | 45.87 | 66.58 | ||||||||||||
1990 | 37.45 | 44.82 | 56.00 | a | 64.53 | 71.77 | 88.67 | 85.32 | 83.52 | 78.33 | 66.48 | 51.10 | 34.65 | 63.55 | ||||||||||||
1991 | 36.39 | 50.46 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.43 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.54 | 44.66 | 51.68 | 61.35 | 70.33 | 80.60 | 85.01 | 83.06 | 76.68 | 65.59 | 52.12 | 41.33 | 63.19 | |||||||||||||
S.D. | 4.31 | 4.67 | 4.39 | 3.95 | 3.75 | 3.30 | 3.11 | 2.69 | 3.06 | 4.34 | 4.56 | 4.94 | 1.92 | |||||||||||||
SKEW | 0.28 | -0.05 | 0.48 | -0.06 | -0.27 | -0.07 | -1.18 | -0.83 | -0.16 | -0.18 | -0.24 | -0.34 | -0.38 | |||||||||||||
MAX | 50.65 | 56.82 | 64.33 | 69.80 | 79.59 | 88.67 | 90.33 | 88.77 | 85.03 | 75.16 | 61.60 | 53.65 | 67.28 | |||||||||||||
MIN | 29.31 | 32.93 | 43.61 | 53.33 | 59.61 | 70.87 | 74.48 | 73.97 | 69.60 | 54.13 | 39.60 | 27.97 | 56.31 | |||||||||||||
YRS | 91 | 94 | 93 | 94 | 93 | 94 | 87 | 95 | 89 | 85 | 93 | 92 | 61 |