YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1876 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1877 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1878 | ----- | z | 48.35 | h | 50.58 | 53.90 | 60.77 | 67.97 | 76.87 | 78.74 | 69.07 | 58.77 | 49.27 | 40.87 | 60.68 | b | ||||||||||
1879 | 40.87 | 50.75 | 56.03 | 56.50 | 62.52 | 67.93 | 75.90 | 77.35 | 71.77 | 59.42 | 48.33 | 42.42 | 59.15 | |||||||||||||
1880 | 44.68 | 39.07 | 44.65 | 53.33 | 61.35 | 69.50 | 75.84 | 77.48 | 69.20 | 59.13 | 45.47 | 46.35 | 57.17 | |||||||||||||
1881 | 41.26 | 48.14 | 49.06 | 59.13 | 63.74 | 68.77 | 78.74 | 77.23 | 69.97 | 57.58 | 47.10 | 45.06 | 58.82 | |||||||||||||
1882 | 39.71 | 42.96 | 48.90 | 52.43 | 61.68 | 67.47 | 78.77 | 80.13 | 68.67 | 57.26 | 48.57 | 46.06 | 57.72 | |||||||||||||
1883 | 40.58 | 44.54 | 54.65 | 52.30 | 58.90 | 71.33 | 80.35 | 79.03 | 71.57 | 54.97 | 49.57 | 49.55 | 58.94 | |||||||||||||
1884 | 43.87 | 48.72 | 51.03 | 53.93 | 61.65 | 67.67 | 77.81 | 77.13 | 67.80 | 61.06 | 52.00 | 43.42 | 58.84 | |||||||||||||
1885 | 41.52 | 46.36 | 54.45 | 58.03 | 63.10 | 67.17 | 76.06 | 78.97 | 70.93 | 61.61 | 49.23 | 48.13 | 59.63 | |||||||||||||
1886 | 45.65 | 50.18 | 47.10 | 53.77 | 64.81 | 69.43 | 77.13 | 79.52 | 70.73 | 55.23 | 46.60 | 47.32 | 58.95 | |||||||||||||
1887 | 42.26 | 43.43 | 53.19 | 55.00 | 59.45 | 69.40 | 75.77 | 74.29 | 69.80 | 60.77 | 50.07 | 41.42 | 57.90 | |||||||||||||
1888 | 39.19 | 46.38 | 47.13 | 57.77 | 60.42 | 67.73 | 76.48 | 75.42 | 74.20 | 59.45 | 49.93 | 46.29 | 58.37 | |||||||||||||
1889 | 42.81 | 46.32 | 51.29 | 56.87 | 60.81 | 69.20 | 77.84 | 78.77 | 69.67 | 58.23 | 47.83 | 49.90 | 59.13 | |||||||||||||
1890 | 39.45 | 46.29 | 51.39 | 55.67 | 61.61 | 67.50 | 78.94 | 76.84 | 75.00 | 57.26 | 52.07 | 50.23 | 59.35 | |||||||||||||
1891 | 40.61 | 44.36 | 50.61 | 53.93 | 59.48 | 65.30 | 76.48 | 77.74 | 67.83 | 59.48 | 48.23 | 37.77 | 56.82 | |||||||||||||
1892 | 45.16 | 48.17 | 51.16 | 53.90 | 60.77 | 67.33 | 74.87 | 75.90 | 70.67 | 57.68 | 48.03 | 39.81 | 57.79 | |||||||||||||
1893 | 44.00 | 45.54 | 47.65 | 53.60 | 60.16 | 69.57 | 76.13 | 78.00 | 65.43 | 55.77 | 44.77 | 43.77 | 57.03 | |||||||||||||
1894 | 38.16 | 37.50 | 48.10 | 54.70 | 60.90 | 63.33 | 77.71 | 77.19 | 67.93 | 58.55 | 53.07 | 44.68 | 56.82 | |||||||||||||
1895 | 44.35 | 47.64 | 50.23 | 53.63 | 63.48 | 67.40 | 73.71 | 77.65 | 68.10 | 60.97 | 47.93 | 41.58 | 58.06 | |||||||||||||
1896 | 43.87 | 46.66 | 51.23 | 50.17 | 61.65 | 71.67 | 77.94 | 76.48 | 68.87 | 62.03 | 50.50 | 46.42 | 58.96 | |||||||||||||
1897 | 45.90 | 45.57 | 46.48 | 56.30 | 65.26 | 67.40 | 76.97 | 79.16 | 71.57 | 56.00 | 47.97 | 40.00 | 58.21 | |||||||||||||
1898 | 38.97 | 47.71 | 45.84 | 57.30 | 58.55 | 68.70 | 78.61 | 79.61 | 70.87 | 56.00 | 45.90 | 41.61 | 57.47 | |||||||||||||
1899 | 41.74 | 43.32 | 48.10 | 55.67 | 56.39 | 69.07 | 77.81 | 71.32 | 71.97 | 57.35 | 48.93 | 44.19 | 57.15 | |||||||||||||
1900 | 45.84 | 45.36 | 51.48 | 51.83 | 62.29 | 69.07 | 74.74 | 69.55 | 61.77 | h | 57.19 | j | 52.17 | 44.13 | 56.65 | b | ||||||||||
1901 | 41.87 | 48.96 | 50.19 | 50.80 | 58.81 | 67.13 | 78.13 | 77.23 | 64.70 | 58.94 | 50.23 | 42.94 | 57.49 | |||||||||||||
1902 | 41.94 | 43.39 | 44.77 | 54.70 | 59.84 | 68.03 | 73.06 | 73.81 | 70.83 | 58.12 | g | 48.10 | 44.45 | 56.63 | a | |||||||||||
1903 | 42.55 | 40.79 | 49.06 | 53.47 | 59.58 | 69.33 | 76.00 | 78.10 | 70.40 | 58.77 | 50.87 | 44.74 | 57.80 | |||||||||||||
1904 | 40.94 | 46.66 | 52.00 | 52.70 | 61.90 | 69.80 | 75.13 | 78.77 | 69.07 | 58.23 | 48.72 | a | 43.81 | 58.14 | ||||||||||||
1905 | 48.03 | 52.14 | 55.81 | 57.10 | 56.24 | j | 68.80 | 74.03 | 77.65 | 69.90 | 57.74 | 51.00 | 43.77 | 59.63 | a | |||||||||||
1906 | 42.55 | 51.82 | 51.90 | 54.33 | 58.00 | 67.30 | 78.52 | 76.32 | 67.17 | 58.39 | 46.53 | 45.35 | 58.18 | |||||||||||||
1907 | 42.55 | 50.29 | 48.71 | 53.47 | 57.29 | 63.70 | 75.26 | 74.27 | a | 64.57 | 58.90 | 48.23 | 41.06 | 56.52 | ||||||||||||
1908 | 43.06 | 43.34 | 49.19 | 53.67 | 54.77 | 61.93 | 77.52 | 77.52 | 66.33 | 50.90 | 46.97 | a | 42.29 | 55.63 | ||||||||||||
1909 | 44.39 | 43.96 | 45.16 | 51.33 | 57.26 | 65.10 | 74.58 | 76.39 | 68.00 | a | 51.74 | 44.73 | 39.65 | 55.19 | ||||||||||||
1910 | 40.39 | 40.89 | 50.10 | 55.23 | 59.52 | 65.20 | 75.87 | 76.35 | 68.00 | 56.32 | 48.07 | a | 41.71 | 56.47 | ||||||||||||
1911 | 44.90 | 42.57 | 50.19 | 51.77 | 55.81 | 65.77 | 75.58 | 74.23 | 69.00 | a | 56.00 | 46.53 | 34.65 | 55.58 | ||||||||||||
1912 | 42.68 | 43.31 | 46.52 | 49.77 | 58.97 | 68.87 | 74.61 | 74.06 | 63.90 | 57.10 | 48.53 | 39.29 | 55.63 | |||||||||||||
1913 | 36.45 | 43.68 | 45.81 | 53.43 | 56.87 | 63.50 | 72.77 | 76.16 | 69.80 | 54.94 | 50.83 | 40.16 | 55.37 | |||||||||||||
1914 | 45.06 | 46.68 | 52.61 | 55.70 | 59.48 | 68.77 | 76.52 | 75.60 | a | 70.53 | 59.58 | 52.73 | 40.48 | 58.65 | ||||||||||||
1915 | 42.61 | 44.71 | 49.71 | 54.44 | c | 56.26 | 66.47 | 75.19 | 74.42 | 65.00 | 55.84 | 47.66 | a | 40.87 | a | 56.10 | ||||||||||
1916 | 42.77 | 51.07 | 55.10 | 56.37 | 57.23 | 66.23 | 75.10 | 75.13 | 69.03 | 53.03 | 44.86 | a | 37.68 | 56.97 | ||||||||||||
1917 | 41.61 | c | 45.77 | b | 46.29 | 52.67 | 55.94 | 68.27 | 79.47 | a | 74.77 | 72.00 | a | 59.74 | 47.97 | 43.23 | 57.31 | |||||||||
1918 | 40.06 | 44.25 | 52.29 | 54.83 | 59.35 | 74.77 | 74.68 | 71.90 | 68.87 | 60.47 | a | 46.87 | 39.81 | 57.35 | ||||||||||||
1919 | 41.19 | 42.46 | 47.23 | 55.60 | 61.74 | 68.60 | 78.10 | a | 74.61 | 70.60 | 52.90 | b | 47.03 | 44.97 | 57.09 | |||||||||||
1920 | 45.06 | 49.28 | 47.81 | 52.57 | 60.81 | 69.10 | 77.26 | 74.87 | 63.90 | 53.32 | 45.83 | a | 38.65 | 56.54 | ||||||||||||
1921 | 40.32 | 45.79 | 51.42 | 51.62 | a | 57.60 | a | 67.07 | 78.52 | 76.74 | 68.40 | 60.68 | 47.97 | 47.16 | 57.77 | |||||||||||
1922 | 39.81 | 43.18 | 46.58 | 49.97 | 59.84 | 69.77 | 78.10 | 77.94 | 73.80 | 57.81 | 43.80 | 45.13 | 57.14 | |||||||||||||
1923 | 45.03 | 45.21 | 46.81 | 53.60 | 62.10 | 62.43 | 76.13 | 75.20 | a | 67.13 | 54.16 | 50.20 | 43.55 | 56.80 | ||||||||||||
1924 | 39.74 | 45.62 | 44.84 | 51.83 | 61.13 | 71.13 | 76.68 | 74.58 | 70.67 | 52.87 | 47.53 | 41.65 | 56.52 | |||||||||||||
1925 | 39.47 | a | 46.25 | 50.35 | 54.20 | 63.00 | 69.30 | 77.84 | 75.97 | 66.87 | 57.48 | 47.80 | 44.74 | 57.77 | ||||||||||||
1926 | 39.19 | 47.57 | 52.58 | 58.57 | 61.13 | 69.00 | 76.10 | 76.58 | 71.07 | 59.52 | 49.33 | 42.52 | 58.60 | |||||||||||||
1927 | 44.68 | 48.82 | 47.52 | 53.40 | 60.13 | 67.40 | 77.16 | 76.97 | 68.63 | 58.68 | 52.07 | 42.10 | 58.13 | |||||||||||||
1928 | 43.81 | 44.10 | 51.42 | 53.87 | 63.16 | 68.20 | 75.42 | 76.81 | 69.60 | 57.48 | 48.73 | 43.87 | 58.04 | |||||||||||||
1929 | 37.81 | 40.44 | a | 47.68 | 51.37 | 60.42 | 66.63 | 77.60 | a | 78.97 | 69.90 | 60.35 | 45.00 | e | 45.52 | h | 57.83 | a | ||||||||
1930 | 41.19 | 47.82 | 50.32 | 57.30 | 56.45 | 66.10 | 77.32 | 74.61 | 66.57 | 55.77 | 50.13 | 40.68 | 57.02 | |||||||||||||
1931 | 41.97 | 48.18 | 50.26 | 58.20 | 63.61 | 69.00 | c | 81.55 | b | 77.61 | 68.60 | 58.68 | 46.10 | 42.26 | 58.83 | |||||||||||
1932 | 38.32 | 47.52 | 50.57 | j | 53.03 | 60.74 | 66.50 | 76.87 | a | 76.17 | a | 70.63 | 58.61 | 50.17 | 39.55 | 58.01 | a | |||||||||
1933 | 39.48 | 40.32 | 49.84 | 51.90 | 57.00 | 68.33 | 79.23 | 77.55 | 72.93 | 64.10 | 50.73 | 43.97 | 57.95 | |||||||||||||
1934 | 43.48 | 48.32 | 55.84 | 59.27 | 64.48 | 64.80 | 78.71 | 79.42 | 69.40 | 59.94 | 49.67 | 46.58 | 59.99 | |||||||||||||
1935 | 45.26 | 49.68 | 47.26 | 55.73 | 59.00 | 69.47 | 77.32 | 78.74 | 73.37 | 58.48 | 46.10 | 44.81 | 58.77 | |||||||||||||
1936 | 42.65 | 46.31 | 52.23 | 56.67 | 62.68 | 71.30 | 78.87 | 79.77 | 70.00 | 59.35 | 51.03 | 44.26 | 59.59 | |||||||||||||
1937 | 33.90 | 44.93 | 48.90 | 54.13 | 60.87 | 68.57 | 78.39 | 79.23 | 74.26 | g | 60.61 | 48.57 | 49.29 | 57.04 | a | |||||||||||
1938 | 45.94 | 46.32 | 49.29 | 54.83 | 60.90 | 68.17 | 75.42 | 76.23 | 72.07 | 58.61 | 45.63 | 46.58 | 58.33 | |||||||||||||
1939 | 44.16 | 41.75 | 51.03 | 56.93 | 62.00 | 67.10 | 76.07 | a | 78.74 | 71.20 | 60.52 | 54.40 | 48.26 | 59.35 | ||||||||||||
1940 | 47.55 | 47.14 | 52.87 | 56.87 | 64.10 | 71.07 | 74.97 | 77.45 | 71.47 | 61.68 | 47.93 | 49.13 | 60.18 | |||||||||||||
1941 | 46.16 | 50.85 | a | 52.52 | 53.73 | 64.65 | 65.70 | 76.74 | 72.48 | 64.03 | 58.03 | 51.93 | 46.42 | 58.60 | ||||||||||||
1942 | 46.55 | 44.68 | 48.32 | 53.83 | 58.87 | 65.68 | b | 78.13 | 77.00 | 66.40 | 59.84 | 50.73 | 45.42 | 57.95 | ||||||||||||
1943 | 45.26 | 48.63 | a | 53.58 | 56.83 | 62.35 | 66.60 | 75.71 | 77.55 | 72.80 | 60.71 | 49.47 | 45.26 | 59.56 | ||||||||||||
1944 | 43.48 | 43.25 | a | 49.87 | 52.57 | 60.61 | 63.60 | 71.90 | 75.94 | 72.13 | 59.94 | 49.31 | a | 45.97 | 57.38 | |||||||||||
1945 | 43.16 | 46.07 | 47.74 | 52.72 | a | 60.29 | 64.90 | 77.39 | 78.90 | 71.77 | 63.48 | 47.67 | 42.74 | 58.07 | ||||||||||||
1946 | 44.06 | 40.96 | 47.97 | 58.03 | 60.68 | 67.80 | 76.74 | 79.45 | 72.03 | 55.84 | 47.27 | 46.97 | 58.15 | |||||||||||||
1947 | 41.06 | 48.54 | 51.32 | 54.83 | 63.87 | 67.34 | a | 76.03 | 75.68 | 73.10 | 59.65 | 45.87 | 41.58 | 58.24 | ||||||||||||
1948 | 42.65 | 43.69 | 46.42 | 54.73 | 59.00 | 66.67 | 75.19 | 76.29 | 69.73 | 60.23 | 44.57 | 39.61 | 56.56 | |||||||||||||
1949 | 35.55 | 39.61 | 45.42 | 54.73 | 58.45 | 67.67 | 75.35 | 72.81 | e | ----- | z | ----- | z | ----- | z | ----- | z | 56.20 | d | |||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.29 | 45.67 | 49.73 | 54.43 | 60.40 | 67.69 | 76.67 | 76.63 | 69.53 | 58.12 | 48.53 | 43.58 | 57.81 | |||||||||||||
S.D. | 2.80 | 3.18 | 2.85 | 2.22 | 2.41 | 2.24 | 1.76 | 2.14 | 2.54 | 2.66 | 2.28 | 3.21 | 1.17 | |||||||||||||
SKEW | -0.46 | -0.21 | 0.23 | 0.15 | -0.16 | -0.11 | -0.07 | -0.80 | -0.37 | -0.54 | 0.18 | -0.09 | -0.22 | |||||||||||||
MAX | 48.03 | 52.14 | 56.03 | 59.27 | 65.26 | 74.77 | 81.55 | 80.13 | 75.00 | 64.10 | 54.40 | 50.23 | 60.18 | |||||||||||||
MIN | 33.90 | 37.50 | 44.65 | 49.77 | 54.77 | 61.93 | 71.90 | 69.55 | 63.90 | 50.90 | 43.80 | 34.65 | 55.19 | |||||||||||||
YRS | 71 | 71 | 71 | 72 | 71 | 72 | 72 | 72 | 69 | 69 | 71 | 70 | 64 |