YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.85 | a | 56.85 | k |
1894 | 50.81 | 53.66 | 57.63 | 61.25 | ----- | z | ----- | z | 72.37 | 73.34 | 70.00 | 64.48 | 57.55 | 51.65 | 61.27 | b | ||||||||||
1895 | 49.41 | b | 54.57 | 55.42 | 58.91 | a | 68.35 | 70.48 | a | 73.69 | 73.37 | 71.00 | 64.18 | 56.92 | 50.63 | 62.25 | ||||||||||
1896 | 53.53 | 55.34 | 57.85 | 57.67 | 65.65 | 72.62 | 74.85 | 73.92 | 69.25 | 63.79 | 54.82 | 51.71 | 62.58 | |||||||||||||
1897 | 49.19 | 49.75 | 50.24 | 59.87 | 65.94 | 68.70 | 73.34 | 74.92 | 70.78 | 59.18 | 53.38 | 45.19 | 60.04 | |||||||||||||
1898 | 43.90 | 52.12 | 50.74 | 61.12 | 61.40 | 68.55 | 73.61 | 76.15 | 70.25 | 60.40 | 52.15 | 49.08 | 59.96 | |||||||||||||
1899 | 48.68 | 48.04 | 52.00 | 57.82 | 59.78 | b | 65.77 | 70.56 | 67.24 | 68.65 | 58.56 | 54.45 | 49.79 | 58.44 | ||||||||||||
1900 | 50.89 | ----- | z | ----- | z | 52.97 | 62.31 | 67.12 | 70.68 | 67.56 | 62.22 | 59.39 | 56.30 | 48.66 | 59.81 | b | ||||||||||
1901 | 47.94 | 55.48 | 58.32 | 58.53 | 64.74 | 69.82 | 74.19 | 76.15 | 67.87 | 64.37 | 57.05 | 52.23 | 62.22 | |||||||||||||
1902 | 50.34 | 51.75 | 52.94 | 57.88 | 62.77 | 69.24 | a | 70.97 | a | 71.00 | 68.55 | a | 61.10 | 53.00 | b | 48.52 | 59.84 | |||||||||
1903 | 49.61 | 46.75 | 53.92 | 56.27 | 63.61 | 71.93 | 70.24 | 70.55 | 67.23 | 60.44 | 54.83 | a | 47.48 | 59.41 | ||||||||||||
1904 | 45.90 | 49.84 | 52.26 | 54.58 | 61.55 | 65.67 | 68.39 | 72.35 | ----- | z | ----- | z | 54.78 | 49.11 | 57.44 | b | ||||||||||
1905 | 49.79 | 54.09 | 58.45 | 62.90 | 62.76 | 66.22 | 70.39 | 70.55 | 66.61 | b | 65.82 | 66.30 | 61.61 | 62.96 | ||||||||||||
1906 | 49.39 | 57.77 | d | ----- | z | 58.70 | 63.39 | 69.10 | a | 76.45 | 72.45 | 69.16 | b | 64.27 | 53.07 | 50.87 | 62.24 | a | ||||||||
1907 | 48.03 | 56.14 | 53.19 | 59.87 | 61.44 | 65.90 | a | 73.15 | 70.11 | 63.67 | 65.79 | 56.65 | 52.06 | 60.50 | ||||||||||||
1908 | 51.37 | 50.41 | 55.05 | 58.92 | 59.34 | 64.70 | 72.66 | 72.39 | 69.02 | 57.90 | 53.80 | 47.92 | 59.46 | |||||||||||||
1909 | 51.10 | 51.50 | 53.13 | 59.35 | 62.26 | 67.87 | 71.10 | 74.12 | a | 70.13 | 64.24 | 57.85 | 52.52 | 61.26 | ||||||||||||
1910 | 51.38 | g | 52.13 | a | 58.93 | c | 62.25 | 65.92 | 67.48 | 74.05 | 72.85 | 72.41 | b | 63.55 | 59.46 | r | 52.83 | a | 64.24 | b | ||||||
1911 | 53.71 | 49.75 | 57.79 | 58.12 | 61.77 | 66.52 | d | 72.97 | b | 73.16 | c | 68.39 | c | 63.00 | d | 57.78 | l | 48.03 | 61.20 | a | ||||||
1912 | 54.88 | b | 51.62 | l | 53.37 | a | 56.36 | a | 62.88 | b | 68.50 | g | 72.69 | b | 71.50 | 68.25 | 61.43 | a | 57.98 | 48.52 | 60.79 | b | ||||
1913 | 46.89 | 51.41 | f | 53.50 | a | 58.92 | 61.66 | 66.79 | a | 72.72 | a | 72.65 | 73.05 | 62.63 | 55.47 | 49.77 | 61.28 | a | ||||||||
1914 | 52.00 | a | 53.54 | 59.61 | 61.07 | 61.89 | 68.37 | 72.79 | 72.84 | 69.62 | 64.90 | 61.38 | 47.52 | 62.13 | ||||||||||||
1915 | 48.98 | 51.14 | 56.88 | b | 59.82 | 62.13 | 69.32 | 72.42 | 73.92 | 67.73 | 62.39 | 54.48 | 50.34 | b | 60.80 | |||||||||||
1916 | 47.43 | b | 53.76 | 59.21 | b | 60.30 | 62.37 | 68.37 | 72.39 | 73.10 | 69.25 | 58.06 | 52.70 | 46.55 | 60.29 | |||||||||||
1917 | 46.57 | b | 51.00 | 52.42 | 57.73 | 60.42 | 70.63 | 74.32 | a | 72.56 | 69.83 | 63.45 | 55.57 | 51.50 | 60.50 | |||||||||||
1918 | 49.65 | 52.57 | 57.65 | 60.70 | 63.52 | 74.33 | 74.45 | 74.89 | 73.72 | 67.53 | 54.30 | 49.56 | 62.74 | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.39 | 73.18 | 68.95 | 58.81 | 54.75 | b | 51.05 | 63.52 | f | |||||
1920 | 51.55 | 53.11 | b | 52.68 | 56.43 | 62.97 | 67.98 | 73.26 | 73.63 | 68.50 | 58.39 | 53.08 | 47.71 | 59.94 | ||||||||||||
1921 | 48.19 | 51.71 | ----- | z | ----- | z | ----- | z | 67.97 | 74.61 | 72.94 | 69.86 | a | 64.98 | a | 55.73 | 54.55 | 62.28 | c | |||||||
1922 | 46.50 | 49.21 | 51.63 | 54.28 | 64.13 | 70.48 | 74.23 | 76.65 | 74.75 | 61.61 | 51.23 | 52.55 | 60.60 | |||||||||||||
1923 | 51.55 | 50.61 | 54.34 | 58.50 | 65.73 | 66.50 | 72.60 | 71.73 | 69.33 | 60.61 | 56.90 | 50.08 | 60.71 | |||||||||||||
1924 | 48.73 | 54.90 | 52.42 | 58.70 | 66.82 | 71.48 | 74.05 | 73.11 | 70.72 | 59.24 | 56.22 | 49.59 | b | 61.33 | ||||||||||||
1925 | 48.58 | 54.02 | 55.10 | 57.78 | 64.29 | 69.30 | 75.68 | 72.65 | 67.60 | 60.52 | 54.43 | 54.32 | 61.19 | |||||||||||||
1926 | 49.10 | 55.91 | 60.44 | 63.18 | 67.50 | 73.28 | 73.98 | 73.56 | 66.22 | 62.94 | 58.22 | 47.79 | 62.68 | |||||||||||||
1927 | 50.33 | a | 54.52 | 53.42 | 57.72 | 63.94 | 68.45 | 75.13 | 73.02 | 67.48 | 62.66 | 59.10 | 48.44 | d | 61.18 | |||||||||||
1928 | ----- | z | 52.48 | 58.76 | 60.15 | 66.18 | 68.73 | 73.08 | 73.08 | 71.63 | 62.21 | 55.97 | 51.24 | 63.05 | a | |||||||||||
1929 | 47.84 | 46.95 | 52.87 | 55.52 | 64.58 | 67.12 | ----- | z | ----- | z | 70.05 | 65.79 | 55.78 | 54.19 | 58.07 | b | ||||||||||
1930 | 51.26 | 55.23 | 58.05 | 62.68 | 61.66 | 69.17 | 75.73 | 75.31 | ----- | z | ----- | z | 55.18 | k | 49.40 | 62.05 | c | |||||||||
1931 | 51.76 | b | 54.46 | 58.53 | 63.67 | 68.50 | 71.65 | 78.52 | 76.76 | 70.53 | 64.15 | 51.41 | b | 47.65 | 63.13 | |||||||||||
1932 | 46.95 | 53.03 | 58.77 | 60.30 | 65.02 | 70.14 | a | 73.39 | 74.42 | 71.98 | 64.94 | 61.08 | 49.31 | 62.44 | ||||||||||||
1933 | 47.31 | 49.41 | 55.94 | 58.08 | 59.71 | 65.98 | 72.21 | 72.95 | 66.15 | 65.48 | 57.45 | 49.98 | 60.05 | |||||||||||||
1934 | 50.48 | 54.84 | 60.18 | 63.05 | 66.11 | 63.78 | 73.74 | 73.71 | 71.63 | 63.35 | 54.55 | 51.11 | 62.21 | |||||||||||||
1935 | 49.32 | q | 52.69 | l | 52.68 | 60.70 | 62.32 | 68.85 | 73.73 | 75.45 | 71.38 | 62.77 | 55.53 | 53.98 | 63.74 | b | ||||||||||
1936 | 54.31 | 54.40 | 58.27 | 60.32 | 64.02 | 68.18 | 75.32 | 75.61 | c | 71.33 | 65.02 | 59.82 | 54.02 | 63.38 | ||||||||||||
1937 | 44.55 | i | 52.59 | 55.06 | 59.13 | 64.45 | 69.10 | 74.77 | 75.44 | 74.52 | 66.27 | 59.05 | 56.74 | 64.28 | a | |||||||||||
1938 | 55.90 | 53.84 | 54.90 | a | 59.75 | 62.32 | 67.20 | 72.61 | 74.39 | 73.67 | 62.47 | 54.72 | 56.47 | 62.35 | ||||||||||||
1939 | 51.89 | 48.34 | 54.37 | 62.13 | 63.94 | 68.20 | 74.16 | 75.58 | 73.78 | 66.94 | 60.98 | 58.02 | 63.19 | |||||||||||||
1940 | 56.90 | 56.24 | 58.55 | 60.98 | 67.31 | 68.25 | 73.03 | 72.77 | 69.63 | 66.24 | 58.00 | 57.41 | b | 63.78 | ||||||||||||
1941 | 54.02 | 56.14 | 58.32 | 58.07 | 66.47 | 67.15 | 73.24 | 73.85 | 67.98 | 63.95 | 60.72 | 52.97 | 62.74 | |||||||||||||
1942 | 54.48 | 52.14 | 55.45 | 57.87 | 62.55 | 67.88 | 74.32 | 74.16 | 70.63 | 66.08 | 59.22 | 54.13 | 62.41 | |||||||||||||
1943 | 53.89 | 57.62 | 58.65 | 61.22 | 63.63 | 65.27 | 71.58 | 73.52 | 73.30 | 66.35 | 58.83 | 52.73 | 63.05 | |||||||||||||
1944 | 51.69 | 50.16 | 55.21 | 56.18 | 61.84 | 63.82 | 69.58 | 72.10 | 70.30 | 65.11 | 57.05 | 54.58 | 60.63 | |||||||||||||
1945 | 51.45 | 52.96 | 52.68 | 56.38 | 60.50 | 64.85 | 71.19 | 74.74 | 73.12 | 65.45 | 55.90 | 52.34 | 60.96 | |||||||||||||
1946 | 51.55 | 49.56 | b | 54.60 | 60.12 | 61.24 | 68.90 | 71.97 | 72.74 | 71.45 | 59.65 | 53.80 | 52.24 | 60.65 | ||||||||||||
1947 | 49.19 | 54.59 | 56.89 | 60.15 | 64.35 | 67.05 | 72.11 | 71.92 | 72.35 | 64.50 | 54.37 | 52.71 | 61.68 | |||||||||||||
1948 | 53.74 | 50.67 | 51.94 | 58.10 | 60.71 | 61.92 | 70.47 | 70.77 | 71.00 | 64.11 | 56.13 | 49.15 | 59.89 | |||||||||||||
1949 | 43.63 | 48.56 | a | 52.68 | 61.05 | 62.10 | 68.78 | 71.00 | 71.45 | 71.50 | 61.44 | 61.30 | 50.06 | 60.30 | ||||||||||||
1950 | 45.89 | 52.43 | 54.53 | 59.92 | 59.02 | 64.25 | 69.53 | 69.89 | 67.12 | 65.19 | 59.10 | 56.16 | 60.25 | |||||||||||||
1951 | 50.63 | 51.68 | 56.08 | a | 59.17 | 62.92 | 66.82 | 72.50 | 71.76 | 70.70 | 64.29 | 57.28 | 50.73 | 61.21 | ||||||||||||
1952 | 49.02 | 51.84 | 51.60 | 58.20 | 65.73 | 64.50 | 72.19 | 73.37 | 72.60 | 65.10 | 54.32 | 50.24 | 60.73 | |||||||||||||
1953 | 55.37 | 51.82 | 54.97 | 56.77 | 60.24 | 65.58 | 74.55 | 71.11 | 69.42 | 64.34 | 57.70 | 50.92 | 61.07 | |||||||||||||
1954 | 50.34 | 57.20 | 53.66 | 60.33 | 63.45 | 66.56 | c | 75.44 | 71.82 | 70.30 | 61.82 | 58.77 | 51.61 | 61.77 | ||||||||||||
1955 | 48.13 | 50.75 | 56.23 | 56.97 | 61.16 | 67.10 | 71.13 | 75.08 | 73.00 | 61.47 | 55.77 | 51.74 | 60.71 | |||||||||||||
1956 | 51.47 | 47.12 | 55.50 | 57.25 | 63.68 | 69.38 | a | 72.24 | 71.24 | 73.12 | 61.89 | 59.93 | ----- | z | 62.07 | a | ||||||||||
1957 | 50.60 | 56.02 | 55.19 | 58.52 | 61.00 | 71.05 | 74.29 | 74.82 | 70.48 | 61.89 | 54.37 | 54.89 | 61.93 | |||||||||||||
1958 | 52.18 | 55.02 | 52.60 | 60.58 | 65.95 | 69.18 | 73.02 | 75.29 | 72.68 | 68.55 | 57.03 | 56.39 | 63.21 | |||||||||||||
1959 | 54.35 | 51.52 | 59.53 | 64.30 | 63.29 | 71.07 | 76.73 | 74.79 | 71.60 | a | 65.52 | 60.05 | 54.18 | 63.91 | ||||||||||||
1960 | 49.03 | 51.84 | 58.08 | 60.98 | 64.21 | 69.68 | 75.10 | 73.34 | 73.92 | 63.42 | 55.85 | 51.08 | 62.21 | |||||||||||||
1961 | 54.79 | 54.68 | 55.37 | 60.25 | 61.61 | 69.17 | 73.16 | 74.82 | 68.75 | 63.95 | 55.83 | 51.69 | 62.01 | |||||||||||||
1962 | 53.06 | 51.46 | 51.27 | 62.27 | 62.00 | 66.33 | 71.82 | 74.18 | 71.30 | 64.08 | 57.13 | 53.21 | 61.51 | |||||||||||||
1963 | 50.44 | 59.86 | 54.11 | 56.13 | 63.58 | 65.73 | 71.40 | 74.02 | 73.98 | 65.69 | 56.83 | 52.84 | 62.05 | |||||||||||||
1964 | 49.34 | 52.31 | 53.66 | 58.03 | 61.50 | 66.37 | 73.06 | 73.85 | 68.28 | 68.56 | 55.60 | 53.13 | 61.14 | |||||||||||||
1965 | 53.19 | 52.86 | 54.77 | 59.63 | 62.47 | 64.22 | 70.48 | 75.55 | 67.20 | 67.19 | 58.62 | 52.37 | 61.55 | |||||||||||||
1966 | 50.52 | 50.95 | 57.29 | 62.38 | 64.60 | 69.03 | 72.31 | 75.34 | 70.77 | 65.85 | 58.55 | 53.89 | 62.62 | |||||||||||||
1967 | 52.58 | 55.39 | 56.55 | 52.98 | 63.89 | 64.70 | 74.26 | 77.05 | 73.05 | 68.11 | 62.02 | 50.76 | 62.61 | |||||||||||||
1968 | 52.77 | 58.40 | 57.65 | 59.98 | 63.69 | 68.07 | 74.10 | 72.37 | 71.40 | 65.84 | 59.40 | 51.89 | 62.96 | |||||||||||||
1969 | 55.13 | 51.50 | 54.58 | 60.13 | 64.71 | 66.23 | 72.90 | 76.24 | 72.43 | 62.53 | 61.63 | 54.39 | 62.70 | |||||||||||||
1970 | 53.82 | 56.71 | 57.02 | 57.83 | 64.89 | 68.48 | 74.66 | 75.18 | 70.82 | 64.87 | 58.68 | 52.16 | 62.93 | |||||||||||||
1971 | 52.82 | 53.59 | 56.82 | 57.87 | 61.15 | 67.13 | 73.32 | 77.03 | 71.77 | 62.16 | 54.78 | 48.52 | 61.41 | |||||||||||||
1972 | 50.69 | 55.74 | 60.05 | 60.12 | 65.23 | 69.37 | 75.13 | 75.06 | 70.28 | 63.98 | a | 56.32 | 52.87 | 62.90 | ||||||||||||
1973 | 50.39 | 55.20 | 52.26 | 58.05 | 64.18 | 70.77 | 71.89 | 73.21 | 68.58 | 65.06 | 56.13 | 54.56 | 61.69 | |||||||||||||
1974 | 52.26 | 53.73 | 56.69 | 59.77 | 63.97 | 70.02 | 74.02 | 72.74 | 72.58 | 64.50 | 58.90 | 52.23 | 62.62 | |||||||||||||
1975 | 53.81 | 52.30 | 53.68 | 55.28 | 62.40 | 66.00 | 72.18 | 71.45 | 72.63 | 63.24 | 56.78 | 53.74 | 61.13 | |||||||||||||
1976 | 56.00 | 54.93 | 55.74 | 57.30 | 65.27 | 70.53 | 73.19 | 72.31 | 70.40 | 67.58 | 62.42 | 55.21 | 63.41 | |||||||||||||
1977 | 54.42 | a | 57.55 | 53.05 | 61.05 | 60.10 | 68.47 | 73.94 | 74.15 | 71.65 | 66.94 | 60.77 | 59.05 | a | 63.43 | |||||||||||
1978 | 54.58 | 55.71 | 59.56 | 58.37 | 65.45 | 71.97 | 73.95 | 73.50 | 71.78 | 68.45 | 55.71 | b | 49.87 | 63.24 | ||||||||||||
1979 | 50.95 | 52.07 | 55.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.78 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.88 | 52.98 | 55.45 | 59.09 | 63.34 | 68.06 | 73.11 | 73.40 | 70.37 | 63.67 | 56.86 | 51.85 | 61.66 | |||||||||||||
S.D. | 2.83 | 2.76 | 2.59 | 2.31 | 2.10 | 2.35 | 1.73 | 1.90 | 2.37 | 2.58 | 2.78 | 2.99 | 1.23 | |||||||||||||
SKEW | -0.18 | -0.06 | 0.09 | -0.26 | 0.24 | 0.07 | -0.01 | -0.56 | -0.66 | -0.34 | 0.54 | 0.52 | -0.26 | |||||||||||||
MAX | 56.90 | 59.86 | 60.44 | 64.30 | 68.50 | 74.33 | 78.52 | 77.05 | 74.75 | 68.56 | 66.30 | 61.61 | 63.91 | |||||||||||||
MIN | 43.63 | 46.75 | 50.24 | 52.97 | 59.02 | 61.92 | 68.39 | 67.24 | 62.22 | 57.90 | 51.23 | 45.19 | 58.44 | |||||||||||||
YRS | 81 | 81 | 82 | 83 | 82 | 82 | 84 | 84 | 83 | 83 | 82 | 85 | 69 |