YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | 55.24 | 58.39 | ----- | z | ----- | z | ----- | z | 86.97 | n | 93.18 | 91.20 | f | 84.17 | 75.84 | 62.42 | 57.78 | f | 71.54 | f | ||||||
1894 | 51.13 | 52.21 | 61.67 | b | 71.08 | 77.40 | 81.15 | ----- | z | 89.69 | 82.90 | 72.67 | b | ----- | z | ----- | z | 71.10 | c | |||||||
1895 | ----- | z | 56.68 | 61.11 | 68.68 | ----- | z | 78.25 | ----- | z | 84.82 | c | 83.40 | 76.44 | ----- | z | ----- | z | 72.77 | e | ||||||
1896 | ----- | z | ----- | z | ----- | z | 64.73 | 72.23 | 81.48 | 85.12 | a | 88.84 | 84.62 | e | 75.73 | a | ----- | z | ----- | z | 78.96 | e | ||||
1897 | ----- | z | ----- | z | 54.52 | f | 69.03 | 77.65 | a | 82.98 | 89.27 | 89.12 | j | 80.85 | 72.45 | 66.15 | d | 52.93 | b | 73.92 | d | |||||
1898 | 48.63 | 59.39 | 59.97 | 70.23 | 74.24 | 83.74 | a | 88.76 | ----- | z | ----- | z | 70.09 | b | 59.88 | 52.10 | b | 66.70 | b | |||||||
1899 | 50.94 | 52.71 | ----- | z | ----- | z | ----- | z | ----- | z | 87.54 | d | 84.05 | 84.88 | 69.48 | 65.05 | 57.48 | c | 69.02 | d | ||||||
1900 | 56.06 | e | 55.38 | 64.37 | 66.23 | 74.23 | 82.27 | 90.00 | 84.06 | 77.70 | 72.15 | 62.45 | 54.21 | 69.92 | ||||||||||||
1901 | 52.81 | 55.11 | 58.92 | 65.34 | a | 74.82 | 81.70 | 92.89 | 89.84 | 81.00 | 72.79 | 65.15 | 51.67 | a | 70.17 | |||||||||||
1902 | 53.85 | a | 55.41 | a | 58.03 | 69.76 | m | 75.55 | 85.43 | 87.05 | 89.11 | d | 83.24 | a | 75.48 | 64.60 | 56.43 | a | 71.29 | a | ||||||
1903 | 54.34 | 51.61 | 59.00 | 66.12 | 72.76 | 82.83 | a | 90.03 | 92.05 | 81.62 | a | 72.32 | a | 63.74 | a | 55.60 | 70.17 | |||||||||
1904 | 51.98 | c | 60.64 | 64.53 | 69.70 | 79.22 | a | 83.70 | t | 87.62 | o | 88.76 | 82.08 | 73.19 | 64.98 | f | 55.26 | 69.48 | c | |||||||
1905 | 56.60 | a | 57.70 | 61.08 | 66.40 | a | 70.81 | 83.92 | 90.13 | 92.07 | a | 85.62 | 73.03 | 62.05 | 50.56 | 70.83 | ||||||||||
1906 | 53.18 | 59.39 | 61.47 | 65.60 | 73.53 | 84.70 | 92.40 | 86.94 | 82.92 | 72.37 | 58.82 | ----- | z | 71.94 | a | |||||||||||
1907 | ----- | z | ----- | z | ----- | z | 68.50 | w | 72.69 | 80.93 | 90.61 | 88.08 | 83.30 | 72.11 | 60.95 | 53.66 | 75.29 | d | ||||||||
1908 | 54.23 | 55.03 | 61.71 | 68.30 | 71.31 | 82.03 | 88.89 | 88.05 | 82.19 | a | 67.31 | 61.83 | 53.97 | 69.57 | ||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.00 | u | 87.92 | 81.98 | 72.11 | 61.48 | b | 49.76 | 70.65 | g | ||||
1910 | 52.32 | 54.45 | 66.19 | 71.28 | 78.97 | 84.70 | 89.56 | 90.19 | 86.60 | 73.66 | 61.10 | 55.23 | 72.02 | |||||||||||||
1911 | 56.10 | 53.16 | 63.42 | 66.87 | 73.26 | 84.07 | 86.52 | 88.24 | 84.47 | 70.90 | 58.35 | 47.18 | 69.38 | |||||||||||||
1912 | 52.68 | 55.74 | 58.65 | a | 62.90 | 73.47 | a | 86.12 | 86.08 | 86.40 | 78.92 | 69.37 | 61.07 | 50.03 | 68.45 | |||||||||||
1913 | 48.15 | a | 52.71 | 57.06 | 67.48 | 73.05 | 81.12 | 86.98 | 88.31 | 82.33 | 69.85 | 62.48 | 51.56 | 68.43 | ||||||||||||
1914 | 55.10 | 54.93 | a | 63.12 | a | 68.80 | 75.32 | 84.52 | 89.15 | 89.00 | 85.15 | 71.47 | 64.25 | 50.71 | 70.96 | |||||||||||
1915 | 49.87 | 53.86 | 57.98 | a | 66.23 | 71.11 | 82.22 | 87.69 | 89.00 | 80.43 | 74.76 | 61.20 | c | 52.82 | 68.93 | |||||||||||
1916 | 51.56 | 60.00 | 64.34 | 68.52 | 73.13 | 82.33 | 88.65 | 86.50 | 80.68 | 68.18 | a | 58.43 | 48.56 | 69.24 | ||||||||||||
1917 | 50.34 | 53.82 | 56.24 | 64.86 | a | 70.15 | 84.02 | 90.29 | 86.77 | 83.47 | a | 74.32 | 62.62 | 55.92 | 69.40 | |||||||||||
1918 | 50.10 | 56.24 | a | 62.68 | 66.75 | 71.84 | 92.00 | s | 91.24 | 87.33 | j | 83.68 | h | 73.37 | 59.45 | 50.53 | 64.69 | c | ||||||||
1919 | 51.37 | 50.54 | 57.13 | a | 68.93 | 75.47 | 84.90 | 88.34 | 88.87 | 82.68 | 68.26 | 59.48 | 55.77 | 69.31 | ||||||||||||
1920 | 55.00 | 57.36 | 58.47 | 63.32 | 74.98 | 82.74 | a | 90.68 | 87.82 | 80.70 | 67.42 | 59.73 | 50.52 | 69.06 | ||||||||||||
1921 | 52.92 | 59.90 | g | 64.78 | b | 66.87 | d | 70.10 | f | 83.02 | 89.15 | 87.50 | 83.45 | 75.47 | 62.78 | a | 57.02 | 72.29 | b | |||||||
1922 | 50.23 | a | 54.59 | 55.77 | 62.63 | 75.84 | 84.97 | 90.63 | a | 90.13 | 84.30 | g | 72.56 | 56.45 | 55.74 | 68.14 | a | |||||||||
1923 | 56.63 | 56.55 | 58.68 | 66.65 | 76.68 | 80.25 | 89.19 | 87.48 | 81.15 | 69.19 | 60.62 | 52.16 | 69.60 | |||||||||||||
1924 | 50.52 | 57.91 | 55.76 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 89.30 | y | 51.10 | b | 53.82 | h | |||
1925 | 50.66 | 58.69 | d | 64.87 | 67.68 | 78.17 | a | 84.53 | j | 96.92 | k | 93.73 | 81.58 | 68.87 | a | 58.97 | a | 51.29 | 67.45 | b | ||||||
1926 | 47.97 | 54.73 | 61.56 | f | 66.93 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.55 | b | 56.05 | h | ||
1927 | 57.05 | a | 57.75 | 59.95 | 66.88 | 76.65 | 84.22 | 92.15 | 89.24 | 83.37 | 69.81 | o | 64.09 | a | 51.73 | a | 71.19 | a | ||||||||
1928 | 53.33 | a | 55.33 | 63.10 | 66.17 | 78.60 | a | 84.07 | 91.05 | 88.08 | 85.08 | ----- | z | 60.82 | b | 48.93 | a | 70.41 | a | |||||||
1929 | 46.15 | a | 49.41 | 56.02 | 59.90 | t | 73.88 | b | 77.60 | 90.22 | a | 89.30 | c | 83.41 | c | ----- | z | ----- | z | 56.21 | c | 69.13 | c | |||
1930 | 50.92 | 61.25 | f | 59.93 | a | 69.85 | 70.11 | 83.50 | 88.45 | a | 83.97 | m | 77.79 | p | 69.29 | 67.17 | x | 54.89 | i | 70.29 | e | |||||
1931 | 54.60 | e | 57.81 | d | 59.65 | a | 68.87 | 76.10 | 81.82 | 91.03 | 85.78 | a | 82.80 | 70.63 | 59.79 | m | 50.67 | j | 72.91 | b | ||||||
1932 | 46.17 | p | 52.74 | 58.20 | h | 64.83 | 71.68 | a | 82.45 | h | 87.32 | c | 86.88 | a | 82.32 | 67.92 | a | 61.18 | p | 45.02 | j | 73.39 | e | |||
1933 | 48.28 | a | 48.79 | 57.38 | c | 61.45 | 64.55 | a | 74.97 | k | 90.40 | b | 87.32 | 81.77 | ----- | z | 60.00 | b | 51.06 | 65.10 | b | |||||
1934 | 56.94 | w | 60.11 | 68.63 | a | 73.17 | 81.87 | 81.45 | a | 92.68 | ----- | z | ----- | z | 75.79 | n | 62.07 | 56.92 | 72.11 | d | ||||||
1935 | 55.39 | 58.94 | a | 57.18 | 67.42 | 70.53 | 85.67 | 88.98 | a | 86.70 | a | 84.57 | a | 71.06 | 55.40 | y | ----- | z | 72.64 | b | ||||||
1936 | 56.45 | k | ----- | z | 65.56 | g | 72.33 | g | 79.00 | a | 87.74 | a | 91.05 | 90.76 | 84.14 | a | ----- | z | ----- | z | 51.78 | v | 86.54 | g | ||
1937 | 44.57 | h | 56.09 | 61.57 | a | 67.08 | 75.45 | 80.61 | h | 89.76 | h | ----- | z | ----- | z | 74.69 | b | 60.53 | n | 58.14 | c | 65.50 | f | |||
1938 | 55.58 | 57.62 | 59.08 | 68.72 | 74.79 | 83.83 | 89.37 | 89.58 | 86.38 | 71.71 | l | 56.18 | b | 56.03 | 70.65 | a | ||||||||||
1939 | 52.83 | a | 47.71 | b | 60.96 | f | 70.45 | 76.79 | 83.82 | 91.92 | 89.69 | e | 82.65 | 71.35 | 67.87 | o | 59.40 | a | 72.66 | b | ||||||
1940 | 56.03 | 55.50 | 63.44 | 68.97 | 80.00 | 87.85 | 90.76 | 89.76 | 84.42 | 72.90 | 58.06 | n | 56.44 | 73.28 | a | |||||||||||
1941 | 54.45 | 57.30 | a | 58.31 | 61.82 | 74.97 | 80.70 | 88.15 | 86.02 | 79.85 | 67.97 | 61.12 | n | 53.77 | 69.39 | a | ||||||||||
1942 | 54.19 | 52.36 | 58.90 | 66.28 | n | ----- | z | ----- | z | 91.48 | 86.87 | 82.57 | 70.69 | 63.73 | j | 54.89 | 68.99 | d | ||||||||
1943 | 52.44 | 58.84 | 61.31 | 69.73 | 75.61 | 78.94 | l | 90.34 | 85.85 | 82.90 | 71.56 | 62.90 | d | 53.95 | 69.59 | a | ||||||||||
1944 | 51.27 | 52.86 | 56.89 | 62.77 | b | 74.18 | 79.27 | 87.53 | 89.15 | 81.87 | 74.42 | 57.38 | 54.58 | 68.51 | ||||||||||||
1945 | 52.92 | 55.93 | 57.42 | 65.67 | 73.69 | 79.82 | 89.85 | 88.50 | a | 82.38 | 73.22 | a | 58.90 | 50.61 | m | 70.75 | a | |||||||||
1946 | 50.65 | 54.00 | 61.68 | 73.37 | 74.76 | 84.17 | 90.57 | a | 89.79 | 84.82 | 67.97 | 57.78 | 56.74 | 70.52 | ||||||||||||
1947 | 50.63 | 60.16 | 63.13 | 67.55 | 78.21 | 82.55 | a | 92.42 | a | 87.95 | 86.45 | 73.23 | 57.38 | 52.42 | 71.01 | |||||||||||
1948 | 54.90 | e | 55.32 | a | 58.74 | d | 68.58 | 75.82 | f | 79.91 | s | 89.65 | e | 90.08 | 82.53 | 72.18 | 55.85 | 51.35 | 67.92 | b | ||||||
1949 | 44.78 | a | 52.21 | 57.97 | a | 68.41 | a | 74.23 | a | 81.64 | i | 85.64 | t | 86.47 | 85.32 | 68.68 | 66.07 | 52.53 | a | 65.67 | b | |||||
1950 | 52.48 | a | 57.43 | 60.60 | 70.28 | 73.05 | 81.86 | a | 85.90 | 86.40 | ----- | z | 78.40 | 65.28 | 58.55 | 70.02 | a | |||||||||
1951 | 50.95 | 55.04 | 59.44 | 66.88 | 75.68 | 80.41 | a | 91.09 | b | 89.60 | f | 81.14 | s | 73.32 | 60.00 | a | 52.16 | 66.50 | b | |||||||
1952 | 50.61 | 52.72 | 53.46 | f | 66.78 | 77.42 | a | 83.07 | c | 88.32 | a | 89.32 | 85.43 | 77.14 | b | 61.50 | u | 51.39 | 72.22 | b | ||||||
1953 | 54.59 | d | 53.05 | 60.63 | a | 65.42 | 68.38 | a | 81.62 | n | 90.30 | f | 90.10 | f | 84.06 | e | 70.71 | b | 61.81 | f | 49.97 | 63.35 | d | |||
1954 | 52.74 | d | 61.91 | a | 59.05 | a | 70.46 | e | 75.23 | c | 81.68 | 90.27 | 86.88 | c | 86.27 | d | 77.62 | f | 63.14 | s | 57.90 | f | 73.83 | c | ||
1955 | 48.81 | e | 50.59 | 59.84 | 63.54 | e | 72.62 | f | 82.17 | f | 85.54 | e | 86.40 | e | 87.61 | l | 79.24 | f | 58.52 | j | 55.94 | g | 65.79 | f | ||
1956 | 56.74 | 49.48 | f | 59.60 | g | 66.17 | f | 77.21 | g | 86.31 | f | 89.90 | g | 85.39 | m | 85.12 | j | 74.00 | i | 60.50 | h | 55.33 | e | 56.03 | j | |
1957 | 54.48 | i | 62.44 | d | 61.96 | f | 67.36 | e | 76.25 | w | 85.08 | f | 90.83 | h | 89.59 | i | 82.83 | f | 72.30 | h | 54.83 | l | 54.60 | a | 61.47 | i |
1958 | 51.69 | m | 55.03 | j | 55.33 | j | 63.96 | f | 80.93 | i | 87.91 | n | 91.88 | e | 89.88 | g | 83.50 | i | 74.22 | f | 63.77 | j | 57.44 | g | 91.88 | k |
1959 | 53.39 | h | 53.56 | l | 60.50 | h | 71.75 | h | 73.54 | g | 86.80 | e | 92.47 | l | 86.79 | e | 83.78 | e | 71.86 | f | 59.83 | r | 53.27 | g | 85.79 | i |
1960 | 47.55 | i | 48.16 | j | 63.30 | f | 67.50 | f | 75.64 | j | 85.66 | h | 89.90 | k | 89.04 | e | 85.94 | e | 74.80 | p | 61.40 | j | 52.52 | f | 87.49 | j |
1961 | 56.76 | f | 56.09 | e | 60.56 | e | 67.10 | j | ----- | z | ----- | z | 90.42 | f | 87.05 | l | 81.59 | g | 71.24 | f | 58.82 | m | 52.12 | n | 58.32 | j |
1962 | 50.54 | f | 55.82 | f | 55.10 | g | 71.50 | l | ----- | z | ----- | z | ----- | z | 93.02 | j | 83.91 | m | 71.81 | e | 58.74 | g | 53.28 | f | 71.81 | k |
1963 | 47.31 | 58.98 | 56.87 | 61.25 | 74.85 | d | 80.54 | g | 91.57 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.14 | f | ||||
1964 | 44.26 | 48.10 | 52.24 | ----- | z | 71.26 | 78.52 | 88.24 | h | 84.28 | h | 79.37 | g | 76.58 | f | 57.69 | i | 52.50 | d | 57.81 | f | |||||
1965 | 52.40 | e | 52.52 | 55.73 | g | 63.80 | g | 70.07 | j | 77.92 | d | 87.47 | b | 88.33 | j | 81.77 | d | 76.68 | 61.98 | d | 50.35 | e | 67.64 | d | ||
1966 | 48.32 | 47.14 | 59.39 | 66.07 | 75.45 | 85.30 | 90.44 | 87.73 | 79.58 | 69.84 | 61.37 | d | 51.76 | 68.53 | ||||||||||||
1967 | 50.68 | 54.50 | ----- | z | ----- | z | 70.85 | 79.25 | 87.34 | 89.09 | t | 82.72 | 72.12 | g | 63.61 | b | 48.21 | 67.14 | d | |||||||
1968 | 50.53 | 51.71 | e | 57.81 | ----- | z | 72.85 | 83.48 | 84.48 | d | 82.11 | 81.67 | ----- | z | 63.33 | i | 50.68 | 68.37 | c | |||||||
1969 | 53.16 | 54.77 | 54.84 | c | 67.60 | 76.31 | 80.25 | 88.82 | 92.21 | 87.03 | a | 68.50 | d | 60.02 | d | 52.66 | 69.68 | |||||||||
1970 | 51.00 | 56.20 | 56.78 | b | 61.06 | c | 76.21 | 84.10 | a | 91.95 | b | 90.83 | a | 80.42 | 67.19 | b | 60.56 | e | 52.83 | a | 69.09 | |||||
1971 | 51.90 | 53.76 | a | 60.93 | a | 66.00 | a | 71.32 | a | 82.33 | 91.84 | c | 87.71 | 82.78 | 67.85 | 58.63 | 49.78 | a | 68.74 | |||||||
1972 | 51.29 | 57.22 | 67.69 | 67.89 | b | 75.53 | 85.12 | 91.60 | 88.24 | b | 83.47 | 69.68 | 55.61 | b | 50.18 | a | 70.29 | |||||||||
1973 | 50.12 | a | 55.36 | 53.67 | a | 62.55 | b | 76.98 | 84.08 | 88.97 | a | 89.13 | 81.00 | 72.30 | a | 58.27 | 53.65 | 68.84 | ||||||||
1974 | 51.81 | 53.06 | a | 60.61 | 66.18 | 75.32 | 87.20 | 87.71 | 86.19 | 83.18 | 73.06 | 59.85 | 48.24 | 69.37 | ||||||||||||
1975 | 51.40 | 53.43 | 56.77 | 60.78 | 72.81 | 81.93 | 89.69 | 88.08 | 83.30 | 71.15 | 59.73 | 53.58 | a | 68.56 | ||||||||||||
1976 | 54.15 | a | 58.71 | 59.57 | h | 66.88 | n | 76.19 | m | 82.53 | k | 89.09 | n | 86.44 | e | 79.90 | a | 69.84 | 61.75 | 54.29 | 66.44 | e | ||||
1977 | 51.97 | 57.17 | b | 56.10 | 68.67 | 71.00 | a | 85.75 | 90.63 | 89.29 | 83.37 | 76.28 | b | 61.93 | 55.93 | b | 70.67 | |||||||||
1978 | 52.33 | b | 54.18 | 62.45 | j | 65.76 | g | 73.97 | a | ----- | z | 92.83 | y | 88.31 | e | 83.45 | b | ----- | z | 60.44 | d | 54.04 | r | 68.78 | f | |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 72.09 | h | 82.54 | f | 85.33 | b | 82.48 | b | 83.80 | ----- | z | ----- | z | ----- | z | 83.87 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.06 | 55.24 | 59.86 | 66.90 | 74.45 | 82.89 | 89.50 | 88.08 | 82.99 | 71.79 | 60.91 | 53.12 | 69.62 | |||||||||||||
S.D. | 2.78 | 3.26 | 3.25 | 2.83 | 2.95 | 2.38 | 2.05 | 2.11 | 1.93 | 2.74 | 2.59 | 2.78 | 0.93 | |||||||||||||
SKEW | -0.44 | -0.24 | 0.39 | -0.24 | -0.32 | -0.16 | -0.44 | -0.25 | -0.15 | 0.24 | 0.02 | 0.09 | 0.68 | |||||||||||||
MAX | 57.05 | 62.44 | 68.63 | 73.37 | 81.87 | 87.85 | 93.18 | 93.73 | 87.03 | 78.40 | 66.15 | 59.40 | 72.02 | |||||||||||||
MIN | 44.26 | 47.14 | 52.24 | 60.78 | 64.55 | 77.60 | 84.48 | 82.11 | 77.70 | 67.19 | 55.61 | 47.18 | 68.43 | |||||||||||||
YRS | 71 | 74 | 65 | 65 | 67 | 60 | 68 | 67 | 69 | 64 | 55 | 66 | 28 |