YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1877 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.61 | 73.58 | 63.43 | 55.48 | 51.47 | 46.48 | 60.84 | f | ||||||
1878 | 45.73 | a | 48.50 | 53.90 | 56.90 | 64.77 | 71.63 | 71.65 | 74.29 | 64.70 | 54.00 | 50.77 | 44.23 | 58.42 | ||||||||||||
1879 | 42.06 | 46.36 | 50.94 | 56.43 | 60.52 | 67.07 | 72.26 | 75.16 | 67.67 | 55.32 | 48.67 | 42.81 | 57.10 | |||||||||||||
1880 | 41.84 | 43.67 | h | 47.29 | 57.73 | 60.06 | 67.63 | 74.13 | 70.58 | 65.07 | 57.90 | 47.67 | 45.13 | a | 57.73 | a | ||||||||||
1881 | 44.32 | 49.64 | 55.03 | 59.27 | 64.45 | 67.17 | 71.39 | ----- | z | 65.97 | 54.06 | 47.63 | 46.90 | 56.89 | a | |||||||||||
1882 | 43.23 | 41.82 | 48.90 | 54.63 | 64.35 | 72.13 | 74.55 | 73.42 | 67.60 | 54.61 | 47.13 | 46.58 | 57.41 | |||||||||||||
1883 | 41.32 | 41.39 | 56.81 | 55.63 | 65.29 | ----- | z | 76.10 | 71.32 | 66.97 | 57.26 | 50.23 | 45.90 | 57.11 | a | |||||||||||
1884 | 44.74 | 42.10 | 52.52 | 61.73 | 70.23 | ----- | z | 73.10 | 77.90 | 62.90 | 58.84 | 53.07 | 39.52 | 57.88 | a | |||||||||||
1885 | 46.71 | 51.57 | 59.32 | 63.17 | 68.71 | 72.00 | 78.71 | 75.55 | 68.17 | 62.97 | 51.13 | 48.74 | 62.23 | |||||||||||||
1886 | 41.84 | 49.89 | 51.77 | a | 58.20 | 67.23 | 72.53 | 76.68 | 76.52 | 69.20 | 56.68 | 49.47 | 49.39 | 59.95 | ||||||||||||
1887 | 45.81 | 38.32 | 53.32 | 56.13 | 65.84 | 68.53 | 74.65 | 72.32 | 66.50 | 57.55 | 48.97 | 45.71 | 57.80 | |||||||||||||
1888 | 38.35 | 48.24 | 51.48 | 61.30 | 71.48 | 70.57 | 75.42 | 77.10 | 71.80 | 60.42 | 49.30 | 48.29 | 60.31 | |||||||||||||
1889 | 43.13 | a | 50.64 | 59.58 | 66.30 | 69.03 | 75.20 | 79.45 | 72.45 | 68.20 | 62.16 | 52.27 | 41.74 | 61.68 | ||||||||||||
1890 | 37.45 | 43.04 | a | 50.65 | 59.47 | 69.35 | 68.87 | 73.35 | 73.81 | 69.10 | 57.16 | 53.27 | 48.81 | 58.69 | ||||||||||||
1891 | 46.59 | b | 40.11 | a | 50.03 | 58.13 | 68.29 | 66.97 | 76.90 | 76.71 | 65.50 | 60.32 | 51.70 | 44.87 | a | 58.84 | ||||||||||
1892 | 44.55 | 48.69 | 55.74 | 56.00 | 66.65 | 71.90 | 73.90 | 77.26 | 70.37 | 58.29 | 51.60 | 42.63 | a | 59.80 | ||||||||||||
1893 | 42.52 | b | 42.11 | 49.48 | 50.73 | 61.03 | 64.67 | 74.23 | 75.48 | 64.57 | 54.33 | a | 47.00 | 47.61 | 56.15 | |||||||||||
1894 | 43.87 | 43.25 | 49.47 | a | 55.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.08 | h | |||
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.35 | e | 45.35 | k |
1896 | 46.58 | 50.82 | a | 52.77 | 55.82 | b | 65.19 | e | 73.30 | 82.84 | 76.39 | 68.60 | 62.00 | 45.21 | f | 49.90 | a | 62.20 | a | |||||||
1897 | 44.72 | b | 47.44 | a | 46.84 | 64.77 | 72.23 | 69.63 | 74.52 | 81.84 | 68.13 | 60.26 | 49.03 | a | 47.17 | a | 60.55 | |||||||||
1898 | 43.97 | 49.64 | 51.48 | 60.76 | a | 68.71 | 72.20 | 78.60 | a | 77.77 | a | 71.43 | 59.33 | a | 50.72 | a | 45.52 | 60.84 | ||||||||
1899 | 44.86 | b | 44.21 | 51.16 | 56.97 | 59.35 | 68.57 | 78.45 | 69.13 | 73.23 | 59.03 | 55.10 | 47.71 | 58.98 | ||||||||||||
1900 | 48.33 | a | 48.14 | 58.26 | 62.53 | 65.10 | 72.77 | 77.74 | 72.77 | 68.40 | 58.06 | 51.23 | 49.52 | 61.07 | ||||||||||||
1901 | 44.41 | b | 48.25 | 53.32 | 58.60 | 67.00 | b | 67.57 | 74.39 | 80.77 | 69.37 | 66.00 | 53.33 | 46.61 | 60.80 | |||||||||||
1902 | 45.10 | 50.89 | 52.06 | 58.70 | 66.20 | a | 72.53 | 77.03 | 79.13 | a | 71.39 | b | 63.74 | 50.19 | c | 45.52 | 61.04 | |||||||||
1903 | 46.79 | b | 48.37 | a | 52.97 | 58.73 | 66.68 | 74.00 | 76.20 | a | 76.58 | 71.17 | 63.00 | a | 50.21 | a | 47.84 | 61.04 | ||||||||
1904 | 46.00 | a | 43.66 | 48.00 | a | 64.60 | 69.39 | 75.37 | 79.52 | 80.45 | 77.07 | 64.10 | 53.27 | 47.33 | a | 62.40 | ||||||||||
1905 | 44.18 | c | 50.46 | 57.13 | 64.27 | 66.97 | 74.00 | 81.87 | 76.90 | 71.00 | 57.53 | a | 52.10 | 45.84 | 61.85 | |||||||||||
1906 | 45.10 | 49.18 | 54.71 | 65.77 | 66.29 | 69.53 | 86.93 | b | 80.76 | b | 70.15 | d | 63.52 | d | 60.36 | h | 54.71 | 64.24 | a | |||||||
1907 | 39.42 | 47.77 | b | 51.10 | b | 61.80 | 70.71 | 74.38 | a | 78.81 | d | 74.79 | g | 68.90 | 60.61 | 52.47 | 45.55 | 59.23 | a | |||||||
1908 | 45.00 | k | 47.07 | 52.74 | 61.70 | 63.40 | a | 72.77 | 82.14 | b | 77.48 | 72.13 | 61.43 | a | 55.00 | 42.65 | 62.59 | a | ||||||||
1909 | 39.16 | 47.00 | 53.90 | 59.70 | 64.48 | 73.03 | 74.19 | 76.65 | 71.80 | 60.77 | 50.50 | 40.30 | a | 59.29 | ||||||||||||
1910 | 42.84 | 44.04 | 58.32 | 60.00 | 70.87 | 70.60 | 78.81 | 74.48 | 69.20 | 59.48 | 50.50 | 46.97 | 60.51 | |||||||||||||
1911 | 41.87 | a | 45.56 | a | 56.35 | 59.67 | 63.77 | a | 70.90 | a | 82.10 | b | 77.96 | c | 67.50 | 63.52 | 50.93 | 46.23 | 60.53 | |||||||
1912 | 46.76 | b | 50.45 | 55.63 | a | 59.17 | 70.39 | 75.23 | d | 77.67 | a | 75.80 | a | 72.00 | 58.48 | 51.24 | a | 45.55 | 61.53 | |||||||
1913 | 41.27 | a | 47.30 | a | 51.26 | 60.50 | 66.26 | 73.52 | a | 77.89 | c | 79.90 | 72.97 | 58.19 | 50.57 | 47.65 | 60.61 | |||||||||
1914 | 48.26 | 49.46 | 57.55 | 62.87 | 74.23 | 72.23 | 81.93 | b | 79.86 | b | 66.73 | 63.74 | 52.30 | 44.42 | 62.80 | |||||||||||
1915 | 45.74 | 51.25 | 59.81 | 65.03 | 65.29 | 72.30 | 74.97 | 80.26 | 70.48 | a | 61.70 | a | 49.07 | c | 47.17 | a | 61.92 | |||||||||
1916 | 35.83 | a | 49.45 | 50.97 | a | 60.07 | 64.10 | 71.37 | 72.90 | 79.55 | 73.03 | a | 59.39 | 51.30 | 42.03 | a | 59.17 | |||||||||
1917 | 43.26 | 44.93 | 49.77 | 55.80 | 64.48 | 73.27 | 82.23 | 83.29 | 68.33 | 61.40 | a | 56.97 | 50.10 | 61.15 | ||||||||||||
1918 | 50.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.26 | k | |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.95 | l | 85.52 | f | ----- | z | 54.67 | j | 51.23 | ----- | z | 51.23 | k | |
1920 | 46.79 | b | 50.30 | b | 54.87 | a | ----- | z | 67.23 | 74.37 | 82.17 | b | 82.71 | 70.60 | 59.90 | a | 56.53 | 48.33 | a | 63.07 | a | |||||
1921 | 47.32 | 50.56 | a | 54.42 | 57.08 | d | 69.33 | d | 76.13 | 77.03 | a | 79.45 | 70.07 | 64.65 | 55.63 | 46.06 | 62.31 | |||||||||
1922 | 41.67 | s | ----- | z | 49.29 | 58.10 | 71.31 | b | 80.00 | a | 81.06 | ----- | z | 73.73 | 66.23 | 49.07 | ----- | z | 66.10 | d | ||||||
1923 | ----- | z | ----- | z | ----- | z | 62.67 | 65.52 | 74.30 | 79.50 | e | 82.58 | 74.70 | 64.39 | 54.63 | 47.33 | a | 67.29 | c | |||||||
1924 | 44.71 | 53.11 | a | 56.42 | 64.83 | 78.16 | 78.87 | ----- | z | 80.00 | ----- | z | ----- | z | ----- | z | ----- | z | 65.16 | e | ||||||
1925 | ----- | z | 50.75 | 52.90 | 60.60 | o | 69.26 | 72.17 | 78.68 | 75.23 | 68.82 | h | 59.54 | c | 51.07 | 49.84 | 62.16 | c | ||||||||
1926 | 47.23 | 51.14 | 60.32 | 67.10 | 65.65 | 75.50 | 80.61 | 77.20 | a | 69.17 | 62.27 | a | 53.87 | 45.68 | 62.98 | |||||||||||
1927 | 44.23 | 50.57 | 52.19 | 59.37 | 60.29 | 73.10 | 77.06 | 78.13 | 67.86 | b | 62.07 | a | 50.80 | 43.07 | a | 59.89 | ||||||||||
1928 | 45.17 | a | 48.86 | 56.23 | 56.30 | 70.58 | 72.33 | 80.16 | 78.97 | 71.73 | 59.45 | 52.30 | 46.61 | 61.56 | ||||||||||||
1929 | 40.06 | 41.15 | a | 52.29 | 56.26 | c | 66.39 | 69.50 | 78.29 | 79.26 | 73.60 | 63.50 | a | 49.13 | 46.48 | 59.66 | ||||||||||
1930 | 36.94 | 48.74 | a | 54.94 | 62.03 | 65.97 | 71.00 | 77.23 | 81.19 | 69.27 | 55.03 | 49.72 | a | 45.19 | 59.77 | |||||||||||
1931 | 47.23 | 49.36 | 54.00 | 62.03 | 71.55 | 70.80 | 79.55 | 78.84 | 69.33 | 61.13 | a | 49.90 | a | 43.03 | a | 61.40 | ||||||||||
1932 | 43.37 | a | 45.17 | 51.94 | 58.60 | 65.32 | 74.33 | 71.48 | 73.35 | 72.20 | 60.87 | 51.72 | a | 41.97 | b | 59.19 | ||||||||||
1933 | 41.87 | a | 41.96 | 51.35 | 60.86 | a | 60.16 | 70.43 | 74.61 | 76.55 | 64.50 | 60.23 | a | 50.42 | d | 47.87 | 58.40 | |||||||||
1934 | 48.55 | 53.19 | a | 60.61 | 65.93 | 68.10 | 74.23 | 74.94 | 76.65 | 68.23 | 61.94 | 52.00 | 46.17 | b | 62.54 | |||||||||||
1935 | 44.17 | a | 48.21 | 47.77 | 59.90 | 68.00 | 71.63 | 76.58 | 76.39 | 72.33 | 56.48 | 47.17 | 44.94 | 59.46 | ||||||||||||
1936 | 46.35 | 40.21 | a | 49.94 | 60.57 | 67.73 | a | 70.90 | 77.45 | 79.71 | 70.72 | a | 63.26 | 51.13 | 46.97 | 60.41 | ||||||||||
1937 | 35.90 | 43.93 | 55.87 | 56.90 | 67.35 | 72.57 | 78.32 | 75.35 | 71.47 | 64.32 | 54.52 | c | 47.14 | c | 60.30 | |||||||||||
1938 | 45.00 | a | 49.32 | 54.07 | b | 64.38 | a | 71.30 | a | 76.40 | 81.48 | 77.19 | 75.93 | 62.10 | a | 49.87 | 45.43 | a | 62.71 | |||||||
1939 | 45.90 | b | 41.41 | a | 48.52 | 63.83 | 69.58 | 71.37 | 80.84 | 82.81 | 75.23 | 63.58 | 55.80 | 50.18 | c | 62.42 | ||||||||||
1940 | 47.90 | 51.21 | 57.97 | 64.40 | 74.16 | 80.30 | 79.52 | 81.32 | 74.93 | 63.61 | 49.40 | 49.55 | 64.52 | |||||||||||||
1941 | 49.52 | 53.96 | a | 65.42 | 70.67 | 69.94 | 76.73 | 85.48 | 79.32 | 71.37 | 63.61 | 54.53 | 47.54 | c | 65.67 | |||||||||||
1942 | 45.52 | 50.32 | 56.68 | 63.72 | a | 68.97 | b | 75.27 | 81.29 | 82.71 | 75.73 | 64.74 | 51.00 | 47.67 | a | 63.63 | ||||||||||
1943 | 40.35 | 51.18 | 52.68 | 63.17 | 64.77 | 70.70 | 77.45 | 75.45 | 75.67 | 61.87 | 53.47 | 46.16 | 61.08 | |||||||||||||
1944 | 48.06 | 49.03 | 54.16 | 60.17 | 67.35 | 71.20 | 77.84 | 76.13 | 73.80 | 65.32 | 51.50 | 43.16 | 61.48 | |||||||||||||
1945 | 47.10 | 50.15 | a | 52.87 | 59.33 | 70.58 | 74.73 | 83.84 | 80.53 | a | 71.07 | 64.39 | 54.79 | a | 50.71 | c | 63.34 | |||||||||
1946 | 49.23 | 49.11 | 54.19 | 60.27 | 74.58 | 71.10 | 78.65 | 79.81 | 72.13 | 59.32 | 49.52 | a | 46.20 | a | 62.01 | |||||||||||
1947 | 41.03 | a | 51.32 | 61.00 | 67.37 | 74.90 | 74.07 | 79.00 | 78.65 | 72.73 | 59.71 | 51.41 | a | 47.43 | c | 63.22 | ||||||||||
1948 | 45.39 | c | 46.76 | 53.06 | 55.73 | 64.87 | 76.40 | 76.97 | a | 72.32 | 70.50 | 60.29 | 49.73 | 41.23 | 59.44 | |||||||||||
1949 | 36.39 | 43.46 | 55.45 | 63.57 | 72.16 | 74.77 | 78.42 | 77.68 | 75.13 | 57.34 | b | 55.80 | 44.35 | 61.21 | ||||||||||||
1950 | 34.87 | 45.39 | 47.65 | 57.70 | 66.52 | 74.27 | 80.19 | 79.45 | 73.30 | 57.71 | 49.23 | 48.29 | g | 60.57 | a | |||||||||||
1951 | 43.97 | 47.68 | 48.81 | 67.00 | 67.87 | 77.53 | 81.19 | 80.19 | 73.53 | 60.26 | 50.03 | 43.16 | 61.77 | |||||||||||||
1952 | 41.73 | a | 47.10 | 52.00 | 61.97 | 69.23 | a | 69.80 | 79.29 | 77.81 | 75.70 | 66.65 | 49.60 | 46.48 | 61.45 | |||||||||||
1953 | 49.00 | 49.79 | 53.16 | 58.62 | a | 66.17 | a | 68.23 | 78.32 | 76.71 | 72.33 | 63.71 | 52.40 | ----- | z | 62.59 | a | |||||||||
1954 | 42.38 | b | 49.57 | 53.39 | 57.87 | 66.42 | 64.90 | 70.06 | 69.68 | 66.83 | 58.13 | 55.17 | 46.26 | 58.39 | ||||||||||||
1955 | 44.67 | a | 46.50 | 46.60 | a | 53.47 | 61.77 | 68.30 | 68.26 | 73.74 | 67.77 | 58.61 | 44.37 | 44.43 | a | 56.54 | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.98 | 47.52 | 53.45 | 60.37 | 67.40 | 72.28 | 77.64 | 77.28 | 70.33 | 60.53 | 51.31 | 46.16 | 60.70 | |||||||||||||
S.D. | 3.48 | 3.57 | 3.75 | 3.76 | 3.71 | 3.19 | 3.57 | 3.25 | 3.26 | 3.14 | 2.47 | 2.62 | 1.90 | |||||||||||||
SKEW | -0.71 | -0.65 | 0.52 | 0.21 | 0.17 | 0.03 | -0.09 | -0.36 | -0.13 | -0.20 | 0.14 | 0.03 | -0.11 | |||||||||||||
MAX | 50.26 | 53.96 | 65.42 | 70.67 | 78.16 | 80.30 | 86.93 | 83.29 | 77.07 | 66.65 | 56.97 | 54.71 | 65.67 | |||||||||||||
MIN | 34.87 | 38.32 | 46.60 | 50.73 | 59.35 | 64.67 | 68.26 | 69.13 | 62.90 | 54.00 | 44.37 | 39.52 | 56.15 | |||||||||||||
YRS | 72 | 72 | 74 | 73 | 74 | 72 | 74 | 72 | 73 | 74 | 73 | 72 | 59 |