YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.77 | 68.23 | 66.40 | ----- | z | ----- | z | ----- | z | 66.80 | i | |||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.05 | 49.05 | k | |
1903 | 47.73 | 46.16 | 52.63 | 53.53 | 59.50 | 63.80 | 64.08 | 64.85 | 64.72 | 62.97 | 55.65 | 49.19 | 57.07 | |||||||||||||
1904 | 47.15 | 50.83 | 53.45 | 56.62 | 61.47 | 65.72 | 65.03 | 64.92 | 67.43 | 61.44 | 55.22 | 47.40 | b | 58.05 | ||||||||||||
1905 | 50.23 | 52.44 | a | 56.71 | 56.87 | 56.92 | 61.87 | 67.73 | 65.55 | 64.47 | 59.65 | 53.42 | 46.81 | 57.72 | ||||||||||||
1906 | 50.45 | 55.66 | 54.18 | 56.60 | 59.03 | 63.28 | 69.02 | 67.48 | 65.12 | 60.97 | 52.97 | 48.56 | 58.61 | |||||||||||||
1907 | 47.48 | 55.30 | 50.73 | 58.02 | 59.50 | 62.80 | 66.13 | 66.03 | 61.87 | 60.77 | 54.55 | 50.84 | 57.84 | |||||||||||||
1908 | 49.88 | a | 49.48 | a | 52.98 | 57.08 | 56.52 | 60.82 | 68.35 | 65.69 | 65.02 | 57.90 | 53.87 | 45.06 | 56.89 | |||||||||||
1909 | 52.37 | 51.32 | 50.79 | 57.10 | 57.40 | 62.23 | 64.06 | 64.56 | 64.90 | 59.69 | 53.67 | 46.45 | 57.05 | |||||||||||||
1910 | 45.66 | 49.21 | 55.48 | 58.57 | 62.50 | 59.45 | 65.23 | 63.90 | 62.18 | 61.42 | 54.07 | 49.97 | 57.30 | |||||||||||||
1911 | 49.65 | 47.09 | 54.13 | 54.30 | 56.39 | 61.87 | 66.10 | 62.74 | 60.87 | 59.42 | 52.45 | 48.03 | 56.09 | |||||||||||||
1912 | 50.39 | 53.02 | 51.81 | 52.78 | 60.32 | 65.43 | 64.87 | 65.27 | 66.08 | 57.92 | 54.50 | 48.11 | 57.54 | |||||||||||||
1913 | 45.56 | 50.48 | 52.15 | 56.07 | 60.16 | 63.65 | 68.63 | 68.92 | 68.07 | 62.65 | 55.02 | 48.97 | 58.36 | |||||||||||||
1914 | 50.06 | 51.12 | 57.21 | 57.82 | 60.47 | 62.67 | 66.16 | 66.37 | 63.48 | 61.11 | 54.83 | a | 46.53 | 58.15 | ||||||||||||
1915 | 48.66 | 51.64 | 55.69 | 57.33 | 57.89 | 62.95 | 67.10 | 68.15 | 64.12 | 61.21 | 52.77 | 49.52 | 58.08 | |||||||||||||
1916 | 46.24 | 54.72 | 54.58 | 56.65 | 56.68 | 61.00 | 64.47 | 64.66 | 63.90 | 55.90 | 50.82 | 45.71 | 56.28 | |||||||||||||
1917 | 44.27 | 50.23 | 48.44 | 55.27 | 55.58 | 62.58 | 68.58 | 65.66 | 66.10 | 62.53 | 56.17 | 52.05 | 57.29 | |||||||||||||
1918 | 49.53 | 50.30 | 54.55 | 55.88 | 57.39 | 66.48 | 65.13 | 66.32 | 64.58 | 62.37 | 51.72 | 44.81 | 57.42 | |||||||||||||
1919 | 47.60 | 49.11 | 49.95 | 55.97 | 59.08 | 60.83 | 64.21 | 65.60 | 63.63 | 57.66 | 51.80 | 46.90 | 56.03 | |||||||||||||
1920 | 49.56 | 49.77 | a | 50.68 | 54.87 | 57.82 | 64.40 | 64.00 | 68.18 | 63.67 | 57.84 | 52.85 | 49.03 | a | 56.89 | |||||||||||
1921 | 47.65 | 50.79 | 54.55 | 54.62 | 57.19 | 64.82 | 66.65 | 64.87 | 64.25 | 61.55 | 54.82 | 50.24 | 57.66 | |||||||||||||
1922 | 43.39 | 48.93 | 50.79 | 52.38 | 59.76 | 65.77 | 67.18 | 64.21 | 66.55 | 59.32 | 51.00 | 49.66 | 56.58 | |||||||||||||
1923 | 45.97 | 49.23 | 53.47 | 54.78 | 57.53 | 60.48 | 64.02 | 66.13 | 67.08 | 59.73 | 57.77 | 47.98 | 57.01 | |||||||||||||
1924 | 47.73 | 54.55 | 51.60 | 57.82 | 62.47 | 64.68 | 64.65 | 66.23 | 64.88 | 58.27 | 53.60 | 45.19 | 57.64 | |||||||||||||
1925 | 48.55 | 53.80 | 53.98 | 57.37 | 61.19 | 65.72 | 68.50 | 65.77 | 62.92 | 60.61 | 53.92 | 49.08 | 58.45 | |||||||||||||
1926 | 46.82 | 53.80 | 58.79 | 62.02 | 61.56 | 65.78 | 68.03 | 66.97 | 62.30 | 63.44 | 59.77 | 48.02 | 59.77 | |||||||||||||
1927 | 49.66 | 52.89 | 52.55 | 55.33 | 59.35 | 65.50 | 67.24 | 66.11 | 62.78 | 61.52 | 56.60 | 48.89 | 58.20 | |||||||||||||
1928 | 48.68 | 52.24 | 57.19 | 56.02 | 62.39 | 64.20 | 66.05 | 66.50 | 64.47 | 59.53 | 53.17 | 45.98 | 58.03 | |||||||||||||
1929 | 45.55 | 48.54 | 53.65 | 53.42 | 59.79 | 64.50 | 65.87 | 65.98 | 64.23 | 61.65 | 53.78 | 53.18 | 57.51 | |||||||||||||
1930 | 48.03 | 54.16 | 55.05 | 58.98 | 57.40 | 63.93 | 64.53 | 64.94 | 63.13 | 60.79 | 53.50 | 47.65 | 57.67 | |||||||||||||
1931 | 48.98 | b | 53.54 | 55.39 | 58.90 | 65.35 | 65.12 | 70.06 | 68.02 | 64.60 | 59.85 | 51.30 | 47.27 | 59.03 | ||||||||||||
1932 | 46.90 | 48.79 | 55.74 | 55.60 | 61.50 | 65.37 | 66.08 | 66.24 | 66.78 | 61.23 | 57.97 | 44.65 | 58.07 | |||||||||||||
1933 | 44.66 | 48.30 | 54.27 | 56.32 | 56.92 | 61.85 | 68.15 | 67.79 | 63.78 | 64.02 | 55.50 | 49.37 | 57.58 | |||||||||||||
1934 | 50.11 | 54.38 | 60.32 | 60.38 | 63.37 | 65.45 | 66.52 | 67.19 | 66.60 | 61.84 | 56.43 | 49.92 | 60.21 | |||||||||||||
1935 | 48.45 | 51.80 | 50.56 | 57.70 | 61.18 | 65.58 | 67.02 | 67.50 | 65.95 | 60.00 | 52.37 | 49.45 | 58.13 | |||||||||||||
1936 | 51.81 | 51.19 | 54.53 | 58.47 | 63.79 | 65.33 | 68.58 | 68.76 | 67.33 | 63.16 | 53.88 | 48.16 | 59.58 | |||||||||||||
1937 | 41.97 | 48.89 | 54.71 | 55.20 | 61.23 | 66.55 | 68.98 | 67.81 | 66.20 | 62.84 | 56.53 | 51.06 | 58.50 | |||||||||||||
1938 | 49.77 | 52.00 | 52.48 | 55.83 | 61.77 | 65.27 | 68.85 | 67.10 | 66.45 | 61.21 | 52.30 | 51.06 | 58.68 | |||||||||||||
1939 | 48.92 | 49.25 | 53.27 | 59.45 | 61.68 | 64.45 | 67.08 | 66.89 | 69.32 | 61.89 | 54.82 | 51.85 | 59.07 | |||||||||||||
1940 | 51.55 | 54.19 | 56.84 | 59.00 | 62.65 | 67.05 | 67.79 | 67.89 | 67.17 | 62.03 | 53.78 | 52.34 | 60.19 | |||||||||||||
1941 | 51.89 | 54.62 | 57.24 | 56.78 | 63.92 | 64.70 | 69.87 | 66.68 | 65.65 | 60.02 | 55.85 | 50.98 | 59.85 | |||||||||||||
1942 | 48.52 | 50.75 | 53.84 | 56.85 | 59.29 | 64.12 | 68.18 | 67.68 | 64.70 | 61.81 | 53.77 | 49.34 | 58.24 | |||||||||||||
1943 | 48.79 | 52.59 | 55.95 | 58.03 | 62.55 | 63.12 | 67.13 | 66.65 | 67.83 | 60.65 | 55.40 | 50.66 | 59.11 | |||||||||||||
1944 | 49.52 | 49.91 | 54.53 | 54.60 | 61.53 | 64.13 | 66.45 | 66.32 | 66.62 | 62.53 | 52.13 | 49.50 | 58.15 | |||||||||||||
1945 | 46.40 | 51.25 | 50.34 | 56.77 | 59.37 | 66.95 | 69.37 | 66.77 | 67.03 | 62.34 | 53.58 | 49.98 | 58.35 | |||||||||||||
1946 | 46.77 | 48.41 | 53.03 | 56.87 | 60.85 | 63.57 | 67.82 | 66.73 | 65.92 | 59.06 | 51.00 | 48.03 | 57.34 | |||||||||||||
1947 | 43.56 | 52.64 | 56.31 | 59.73 | 64.05 | 67.90 | 65.29 | 67.32 | 66.98 | 61.79 | 50.38 | 47.58 | 58.63 | |||||||||||||
1948 | 51.58 | 49.52 | 51.65 | 55.02 | 58.69 | 65.48 | 67.21 | 67.06 | 64.87 | 61.61 | 53.62 | 45.35 | 57.64 | |||||||||||||
1949 | 41.16 | 47.88 | 53.19 | 58.97 | 61.18 | 66.57 | 66.27 | 64.98 | 66.70 | 58.56 | 56.95 | 46.48 | 57.41 | |||||||||||||
1950 | 45.13 | 50.04 | 52.79 | 57.88 | 60.29 | 62.80 | 67.94 | 68.11 | 67.28 | 62.37 | 59.23 | 52.06 | 58.83 | |||||||||||||
1951 | 49.32 | 50.80 | 53.44 | 56.68 | 62.06 | 64.05 | 66.15 | 67.53 | 66.50 | 61.79 | 55.73 | 48.05 | b | 58.51 | ||||||||||||
1952 | 47.10 | 51.09 | 51.66 | 57.88 | 62.55 | 62.57 | 68.52 | 66.82 | a | 68.00 | 62.43 | a | 52.97 | 49.85 | 58.45 | |||||||||||
1953 | 52.44 | 51.14 | 53.47 | 56.23 | 59.11 | 63.02 | 68.79 | 66.10 | 68.90 | 61.71 | 56.77 | 51.21 | 59.07 | |||||||||||||
1954 | 49.35 | 52.05 | 53.11 | 61.35 | 61.58 | 64.03 | 68.56 | 65.81 | 65.53 | 62.05 | 55.22 | 48.66 | 58.94 | |||||||||||||
1955 | 45.98 | 49.79 | 54.58 | a | 53.50 | 61.81 | 64.50 | 65.52 | 67.52 | 66.83 | 61.63 | 54.10 | 52.47 | a | 58.19 | |||||||||||
1956 | 50.95 | b | 47.62 | 53.68 | a | 57.50 | h | 63.00 | 65.68 | 68.00 | e | 67.58 | 67.63 | 59.98 | 55.00 | a | 49.29 | 58.95 | a | |||||||
1957 | 46.39 | 54.00 | 55.87 | 59.62 | 62.27 | 69.32 | 69.61 | 67.29 | 68.77 | 62.50 | 54.38 | 49.74 | 59.98 | |||||||||||||
1958 | 50.84 | 56.25 | 51.39 | c | 57.97 | 64.45 | 67.37 | 69.10 | a | 71.44 | m | ----- | z | ----- | z | 53.36 | l | 53.21 | 58.82 | d | ||||||
1959 | 52.02 | 51.86 | 58.10 | 61.93 | 61.79 | 66.77 | h | 70.21 | 69.64 | b | 66.23 | 65.40 | 55.93 | 49.87 | 60.27 | a | ||||||||||
1960 | 47.74 | f | 51.12 | c | 57.13 | a | 57.52 | 59.89 | 69.88 | 69.08 | a | 67.45 | a | 66.94 | d | 60.81 | o | 52.59 | c | 48.20 | i | 61.29 | c | |||
1961 | 48.52 | 53.77 | 54.38 | f | 59.25 | 58.15 | 68.43 | 70.47 | 70.13 | a | 67.25 | b | 62.43 | a | 54.18 | 47.89 | d | 60.04 | a | |||||||
1962 | 47.93 | a | 51.05 | 52.48 | 60.34 | a | 59.94 | d | 65.90 | e | 66.66 | 68.63 | 64.92 | 61.52 | 56.11 | b | 49.40 | 58.74 | ||||||||
1963 | 46.05 | c | 58.04 | b | 52.98 | f | 54.66 | a | 61.37 | 65.30 | 66.50 | b | 67.43 | a | 67.93 | i | 62.00 | a | 53.50 | a | 46.12 | b | 58.10 | b | ||
1964 | 49.45 | 52.33 | 53.53 | b | 57.00 | d | 58.93 | c | 64.84 | a | 68.04 | e | 70.87 | 66.93 | h | 64.44 | 52.08 | 52.42 | a | 58.54 | a | |||||
1965 | 50.00 | f | 51.96 | 54.82 | 57.73 | 60.76 | 62.85 | 66.65 | 69.07 | b | 63.72 | u | 64.85 | 56.25 | 45.69 | 59.06 | b | |||||||||
1966 | 48.63 | 50.39 | 55.39 | 62.21 | a | 62.85 | 67.05 | 66.38 | a | 69.23 | 68.00 | 63.23 | 55.98 | b | 49.74 | 59.92 | ||||||||||
1967 | 50.79 | 52.41 | 53.66 | b | 51.77 | b | 63.18 | 65.43 | c | 70.29 | 71.00 | 70.22 | 64.97 | b | 58.42 | 49.08 | 60.10 | |||||||||
1968 | 47.94 | 57.38 | 56.97 | 59.20 | 61.34 | 67.87 | 69.26 | 69.08 | 68.11 | b | 61.66 | 55.63 | 48.90 | 60.28 | ||||||||||||
1969 | 48.48 | 50.48 | 54.76 | 57.05 | 64.58 | 65.47 | 69.28 | b | 70.10 | 68.86 | b | 62.15 | 55.48 | 53.78 | b | 60.04 | ||||||||||
1970 | 53.27 | 55.54 | a | 57.16 | b | 55.83 | 65.61 | 66.13 | 69.98 | 67.47 | 68.73 | 61.03 | 57.19 | a | 49.90 | 60.65 | ||||||||||
1971 | 49.84 | b | 51.86 | 54.73 | 56.57 | 60.50 | 65.71 | d | 68.37 | 70.63 | 69.67 | 59.42 | 53.83 | 47.09 | d | 59.02 | ||||||||||
1972 | 47.12 | a | 54.27 | a | 59.84 | f | 58.52 | e | 64.10 | b | 67.14 | a | 70.53 | a | 69.75 | c | 65.93 | c | 62.53 | a | 53.39 | b | 46.09 | b | 59.94 | a |
1973 | 48.87 | a | 54.00 | 52.02 | j | ----- | z | ----- | z | ----- | z | 69.20 | c | 67.88 | a | 67.32 | b | 61.93 | a | 53.19 | a | 49.88 | a | 59.03 | d | |
1974 | 49.45 | a | 50.63 | a | 56.00 | a | 57.50 | 60.39 | 65.64 | b | 66.98 | a | 67.19 | b | 66.03 | 61.11 | 51.62 | b | 46.23 | a | 58.23 | |||||
1975 | 45.73 | 50.17 | a | 51.42 | a | 51.40 | 61.56 | d | 63.43 | 65.32 | a | 65.87 | 63.95 | 57.05 | b | 50.59 | a | 50.10 | a | 56.38 | ||||||
1976 | 49.45 | 52.61 | b | 54.23 | 56.62 | 65.02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.58 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.29 | 51.61 | 54.03 | 56.95 | 60.70 | 64.65 | 67.29 | 67.05 | 65.88 | 61.22 | 54.32 | 48.89 | 58.26 | |||||||||||||
S.D. | 2.45 | 2.42 | 2.28 | 2.29 | 2.38 | 2.07 | 1.80 | 1.68 | 1.99 | 1.86 | 2.05 | 2.17 | 1.12 | |||||||||||||
SKEW | -0.52 | 0.31 | 0.13 | -0.02 | -0.09 | -0.06 | -0.11 | 0.21 | -0.18 | -0.41 | 0.32 | 0.06 | 0.17 | |||||||||||||
MAX | 53.27 | 58.04 | 60.32 | 62.21 | 65.61 | 69.88 | 70.53 | 71.00 | 70.22 | 65.40 | 59.77 | 53.78 | 60.65 | |||||||||||||
MIN | 41.16 | 46.16 | 48.44 | 51.40 | 55.58 | 59.45 | 64.00 | 62.74 | 60.87 | 55.90 | 50.38 | 44.65 | 56.03 | |||||||||||||
YRS | 72 | 74 | 70 | 72 | 73 | 71 | 74 | 73 | 70 | 71 | 72 | 73 | 63 |