YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.35 | 44.35 | k | |
1904 | 39.77 | 51.52 | 58.05 | 62.20 | 69.63 | 78.25 | 80.29 | 78.81 | 72.98 | 64.32 | 52.07 | 45.87 | 62.81 | |||||||||||||
1905 | 48.69 | 50.14 | 55.13 | 58.27 | 66.42 | 78.65 | 80.37 | d | 80.55 | 76.28 | 65.76 | 53.77 | 43.03 | 63.09 | ||||||||||||
1906 | 42.66 | 52.70 | 54.73 | 62.20 | 68.60 | 77.63 | 80.24 | 76.00 | 74.13 | 63.10 | 55.18 | b | 49.61 | 63.06 | ||||||||||||
1907 | 49.13 | 53.16 | 56.82 | 62.05 | 64.92 | 74.83 | 80.02 | 76.79 | 74.35 | 64.77 | 50.57 | 46.92 | 62.86 | |||||||||||||
1908 | 46.58 | 49.28 | 57.34 | 63.10 | 66.21 | 76.45 | 79.37 | 78.23 | 72.87 | 60.47 | 52.08 | 47.32 | 62.44 | |||||||||||||
1909 | 51.18 | 48.00 | 51.55 | 61.13 | 66.05 | 77.88 | 80.66 | 78.35 | 74.58 | 63.29 | 53.63 | 44.79 | 62.59 | |||||||||||||
1910 | 47.90 | 49.39 | 60.60 | 63.08 | 71.98 | 78.52 | 81.23 | 79.39 | 76.07 | 64.50 | 54.03 | 47.61 | 64.53 | |||||||||||||
1911 | 50.42 | 50.04 | 60.06 | 61.30 | 69.10 | 76.97 | 77.52 | 79.79 | 76.53 | 63.73 | 53.70 | 41.68 | 63.40 | |||||||||||||
1912 | 47.82 | 48.57 | 54.44 | 56.85 | 67.61 | 75.88 | 77.37 | 78.00 | 73.82 | 63.10 | 49.67 | 40.63 | 61.15 | |||||||||||||
1913 | 42.90 | 47.09 | 52.68 | 61.30 | 67.24 | 74.87 | 82.05 | 76.10 | 72.60 | 64.55 | 56.27 | 45.40 | 61.92 | |||||||||||||
1914 | 49.84 | 50.52 | 56.39 | 61.78 | 67.15 | 75.02 | 71.52 | 72.52 | 72.45 | 63.16 | 56.80 | 45.48 | 61.88 | |||||||||||||
1915 | 44.39 | 49.57 | 52.40 | 60.20 | 65.68 | 77.53 | 79.85 | 79.58 | 74.12 | 64.85 | 54.37 | 46.50 | 62.42 | |||||||||||||
1916 | 49.47 | 55.53 | 59.21 | 62.38 | 68.81 | 79.85 | 81.31 | 80.06 | 74.57 | 65.65 | 50.85 | 44.08 | 64.31 | |||||||||||||
1917 | 46.11 | 48.14 | 52.27 | 58.68 | 64.60 | 79.80 | 79.63 | 77.21 | 75.02 | 67.15 | 55.62 | 48.92 | 62.76 | |||||||||||||
1918 | 44.11 | 51.27 | 57.26 | 62.65 | 64.76 | 79.12 | b | 79.87 | 76.42 | 74.50 | 64.15 | 50.50 | 42.03 | a | 62.22 | |||||||||||
1919 | 39.32 | f | 44.25 | 52.42 | ----- | z | 68.84 | 77.02 | 76.42 | 77.60 | 71.32 | 61.19 | 51.97 | 46.87 | 62.79 | b | ||||||||||
1920 | 45.73 | 51.93 | 52.57 | b | 55.95 | a | 67.16 | 74.45 | a | 80.66 | 75.82 | 72.40 | 60.18 | 51.31 | a | 41.71 | 60.82 | |||||||||
1921 | 46.23 | 47.89 | 57.24 | 59.09 | a | 66.65 | 74.85 | 78.67 | a | 76.02 | a | 73.82 | 64.63 | 52.75 | 49.38 | a | 62.27 | |||||||||
1922 | 43.90 | 49.05 | 50.08 | a | 57.92 | 69.03 | a | 78.65 | 79.63 | 78.68 | 74.50 | a | 64.13 | 49.74 | a | 49.03 | a | 62.03 | ||||||||
1923 | 48.68 | a | 48.50 | a | 52.76 | 61.22 | 70.71 | 75.58 | 79.68 | 75.88 | a | 72.36 | a | 61.18 | a | 53.23 | 44.92 | 62.06 | ||||||||
1924 | 42.52 | 47.76 | 49.93 | a | 57.98 | 67.98 | 80.60 | 80.19 | 79.97 | 75.73 | 63.81 | 54.58 | 44.06 | 62.09 | ||||||||||||
1925 | 41.18 | 51.96 | 56.66 | 62.72 | 70.39 | 76.35 | 79.63 | 76.31 | 73.32 | 64.63 | 50.55 | 43.35 | 62.25 | |||||||||||||
1926 | 40.68 | c | 49.68 | 52.98 | 58.40 | 67.39 | 77.13 | 79.35 | 78.60 | 75.57 | a | 65.45 | 54.30 | 45.85 | 62.12 | |||||||||||
1927 | 50.13 | 53.09 | 54.90 | 61.50 | 70.61 | 76.70 | 80.34 | 76.40 | a | 73.28 | 63.48 | b | 57.50 | b | 44.65 | 63.55 | ||||||||||
1928 | 45.83 | d | 48.33 | e | 56.22 | f | 61.67 | f | 70.93 | d | 78.04 | b | 80.48 | a | 77.18 | a | 74.20 | c | 65.19 | g | 52.98 | d | 44.73 | c | 63.63 | c |
1929 | 43.34 | f | 45.83 | h | 51.93 | a | 59.48 | b | 69.32 | f | 78.21 | a | 79.50 | a | 76.85 | 73.77 | d | 63.77 | e | 48.46 | d | 46.21 | b | 64.24 | c | |
1930 | 45.61 | d | 51.31 | b | 53.24 | d | 64.09 | c | 66.05 | a | 78.86 | a | 78.73 | a | 78.12 | a | 71.94 | c | 62.96 | e | 51.80 | c | 43.02 | g | 63.88 | a |
1931 | 42.73 | c | 48.26 | c | 53.93 | d | 61.57 | c | 69.30 | a | 77.90 | 80.63 | 76.77 | a | 75.14 | a | 64.86 | b | 51.83 | f | 43.88 | e | 63.18 | a | ||
1932 | 40.82 | c | 51.23 | e | 52.94 | d | 59.64 | b | 67.90 | b | 76.00 | a | 79.83 | d | 78.43 | a | 72.67 | a | 62.13 | a | 52.08 | e | 42.77 | e | 61.37 | |
1933 | 42.98 | d | 43.88 | d | 54.62 | a | 57.76 | e | 65.16 | c | 77.46 | c | 81.55 | a | 79.23 | a | 76.93 | c | 65.62 | b | 53.61 | c | 48.02 | d | 62.23 | |
1934 | 43.43 | a | 52.38 | c | 57.39 | d | 64.29 | b | 72.40 | b | 76.09 | b | 81.42 | a | 78.20 | c | 74.60 | a | 65.48 | a | 53.40 | f | 47.85 | g | 66.57 | b |
1935 | 47.88 | c | 48.61 | e | 53.96 | e | 62.52 | b | 65.13 | e | 77.50 | 81.44 | 77.94 | 72.60 | 65.23 | 52.22 | 46.82 | 62.65 | ||||||||
1936 | 45.69 | 49.52 | 55.68 | 63.18 | 71.65 | 80.83 | 82.08 | 80.40 | 73.60 | 63.31 | 52.96 | b | 46.34 | 63.77 | ||||||||||||
1937 | 40.95 | 49.39 | 52.52 | 61.33 | 71.43 | b | 77.67 | a | 82.48 | 81.08 | 76.35 | 66.53 | 54.68 | 48.81 | 63.60 | |||||||||||
1938 | 48.18 | 50.45 | h | 55.63 | 61.03 | 68.42 | 78.52 | 79.37 | 78.82 | 74.68 | 66.31 | 50.50 | 47.92 | 64.49 | a | |||||||||||
1939 | 45.23 | 41.89 | 54.82 | 61.83 | 69.74 | 79.17 | 79.87 | 78.40 | 74.97 | 62.88 | e | 54.82 | 50.97 | b | 62.88 | |||||||||||
1940 | 47.05 | 49.41 | 56.52 | 61.83 | 70.73 | 78.20 | 81.97 | a | 78.34 | 75.78 | 65.34 | 52.13 | 51.31 | 64.05 | ||||||||||||
1941 | 47.65 | 52.28 | a | 54.15 | 58.44 | c | 69.45 | 76.47 | 80.81 | 78.37 | 74.43 | 63.77 | 54.73 | 48.56 | 63.26 | |||||||||||
1942 | 48.37 | 47.50 | 52.98 | 61.28 | c | 68.73 | 78.28 | 82.44 | 78.82 | 75.10 | 63.90 | a | 56.55 | 48.27 | 63.52 | |||||||||||
1943 | 47.50 | 53.61 | a | 56.89 | 65.65 | 71.97 | a | 78.02 | 80.60 | 79.13 | 75.26 | a | 64.31 | d | 54.50 | b | 46.50 | b | 64.49 | |||||||
1944 | 42.46 | f | 48.68 | d | 53.98 | e | 60.04 | d | 68.70 | c | 76.55 | 81.41 | b | 80.76 | d | 74.52 | e | 67.61 | d | 52.19 | d | 47.17 | e | 64.69 | a | |
1945 | 47.18 | c | 50.02 | e | 51.66 | i | 61.18 | e | 69.45 | b | 74.90 | 81.66 | b | 80.57 | c | 75.94 | c | 65.83 | g | 54.20 | h | 47.37 | h | 67.61 | d | |
1946 | 43.14 | j | 47.63 | e | 54.48 | e | 66.14 | b | 67.72 | a | 79.81 | a | 81.59 | b | 79.92 | 76.58 | d | 64.02 | f | 51.21 | f | 49.75 | e | 67.07 | c | |
1947 | 41.87 | e | 52.86 | c | 55.08 | f | 61.94 | e | 71.46 | d | 77.48 | b | 83.34 | c | 79.77 | a | 76.73 | 66.83 | b | 51.28 | g | 43.02 | i | 68.03 | c | |
1948 | 46.15 | d | 49.23 | i | 51.77 | g | 64.15 | d | 71.00 | a | 80.11 | c | 82.13 | 80.29 | 76.83 | 65.85 | 49.02 | 48.47 | 66.40 | b | ||||||
1949 | 40.03 | 46.34 | 54.06 | 60.30 | 67.44 | 76.47 | 79.13 | 78.85 | 77.33 | 63.02 | 57.15 | 45.94 | 62.17 | |||||||||||||
1950 | 47.18 | a | 51.62 | 56.08 | 63.97 | 67.37 | 77.73 | 78.97 | 78.53 | 73.35 | 70.69 | 56.58 | 49.33 | a | 64.29 | |||||||||||
1951 | 44.16 | 47.84 | 53.06 | 60.47 | 68.19 | 75.77 | 82.42 | 80.44 | 76.72 | 67.44 | 53.32 | 47.55 | 63.11 | |||||||||||||
1952 | 48.06 | 46.31 | 49.48 | 60.83 | 70.94 | 78.97 | 82.18 | 81.39 | 76.97 | 67.39 | 50.62 | 44.21 | 63.11 | |||||||||||||
1953 | 48.18 | 46.82 | 55.58 | a | 61.48 | b | 64.77 | 78.69 | a | 81.50 | 80.26 | 74.79 | a | 64.77 | 55.07 | 41.00 | 62.74 | |||||||||
1954 | 47.42 | 52.98 | 55.03 | 64.97 | 69.44 | 77.05 | 81.65 | 76.65 | 76.88 | 67.15 | 55.62 | 47.93 | a | 64.40 | ||||||||||||
1955 | 42.31 | 43.82 | 54.40 | 59.90 | 66.69 | 76.60 | 78.35 | 77.87 | 73.42 | 66.47 | 53.30 | 48.05 | 61.77 | |||||||||||||
1956 | 48.74 | 45.07 | 54.06 | 58.72 | 70.16 | 81.58 | 79.48 | 77.45 | 77.00 | 64.66 | 50.23 | 44.79 | 62.66 | |||||||||||||
1957 | 50.26 | 55.89 | 54.81 | 60.77 | 65.65 | 79.77 | 81.40 | 78.42 | 73.27 | 63.21 | 49.88 | 47.44 | 63.40 | |||||||||||||
1958 | 43.97 | 50.48 | 50.68 | 60.75 | 72.87 | 80.97 | 81.55 | 78.84 | 74.30 | 64.85 | 52.92 | 48.24 | 63.37 | |||||||||||||
1959 | 47.71 | 48.48 | 53.08 | 63.48 | 68.15 | 80.07 | 81.26 | 77.85 | 73.93 | 64.38 | a | 53.15 | 46.93 | a | 63.21 | |||||||||||
1960 | 42.97 | a | 45.16 | a | 57.08 | a | 61.48 | a | 67.31 | 79.42 | 80.85 | a | 79.71 | 75.30 | 62.95 | b | 55.30 | 44.17 | b | 62.64 | ||||||
1961 | 46.63 | 48.84 | 55.05 | b | 63.48 | a | 69.57 | a | 79.64 | a | 81.16 | 79.34 | 74.02 | 64.40 | a | 51.50 | a | 47.55 | 63.43 | |||||||
1962 | 45.03 | 52.57 | 50.05 | 65.53 | 69.10 | 76.15 | 79.60 | 81.94 | 76.20 | 67.08 | 57.07 | 49.42 | 64.14 | |||||||||||||
1963 | 45.89 | 52.55 | 55.53 | a | 62.57 | 71.98 | 76.97 | 82.63 | 78.31 | 76.55 | 66.98 | 53.82 | 46.48 | 64.19 | ||||||||||||
1964 | 42.08 | 42.83 | 52.18 | 60.07 | 69.58 | 77.63 | 82.62 | e | 78.40 | 72.93 | 65.15 | 51.33 | 47.92 | 61.89 | ||||||||||||
1965 | 49.74 | 47.05 | 52.39 | 62.37 | 67.29 | 73.65 | 80.82 | 79.39 | 72.58 | 65.31 | j | 54.41 | s | 46.82 | 63.21 | b | ||||||||||
1966 | 41.92 | 43.14 | 54.15 | 60.98 | ----- | z | 77.15 | 80.61 | 77.71 | 72.41 | a | 62.79 | 55.02 | 44.76 | b | 60.97 | a | |||||||||
1967 | 44.94 | 50.04 | 57.76 | 60.35 | 67.10 | 75.95 | 80.16 | b | 77.98 | b | 73.53 | 64.68 | 55.07 | b | 44.50 | 62.67 | ||||||||||
1968 | 46.05 | 53.48 | b | 54.12 | c | 59.03 | 67.59 | b | 78.95 | 78.87 | a | 75.73 | c | 72.86 | e | 64.89 | 52.83 | a | 44.27 | 62.39 | ||||||
1969 | 49.33 | e | 48.34 | 50.32 | a | 63.04 | c | 68.10 | a | 76.63 | 80.74 | 81.47 | a | 75.16 | a | 64.23 | 52.35 | 48.00 | a | 63.14 | ||||||
1970 | 44.58 | 50.96 | a | 52.35 | a | 56.97 | 68.76 | 78.38 | 82.02 | 79.65 | a | 74.12 | 61.05 | 54.88 | 49.68 | 62.78 | ||||||||||
1971 | 47.39 | 48.46 | 56.05 | 59.02 | 67.55 | 76.57 | 81.81 | 77.15 | 74.65 | 61.87 | 54.45 | a | 46.25 | a | 62.60 | |||||||||||
1972 | 46.24 | 49.53 | 60.24 | 61.55 | 67.75 | a | 77.33 | 81.73 | 78.39 | 73.90 | 65.52 | a | 49.58 | 46.90 | 63.22 | |||||||||||
1973 | 43.65 | 48.27 | 50.67 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.96 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.75 | 49.29 | 54.49 | 61.22 | 68.48 | 77.63 | 80.44 | 78.44 | 74.52 | 64.52 | 53.16 | 46.34 | 62.87 | |||||||||||||
S.D. | 2.90 | 2.97 | 2.53 | 2.18 | 2.09 | 1.71 | 1.74 | 1.68 | 1.49 | 1.89 | 2.21 | 2.41 | 0.86 | |||||||||||||
SKEW | -0.23 | -0.28 | 0.28 | -0.09 | 0.09 | 0.04 | -2.13 | -0.50 | 0.10 | 0.22 | -0.06 | -0.33 | 0.06 | |||||||||||||
MAX | 51.18 | 55.89 | 60.60 | 66.14 | 72.87 | 81.58 | 83.34 | 81.94 | 77.33 | 70.69 | 57.50 | 51.31 | 64.53 | |||||||||||||
MIN | 39.77 | 41.89 | 49.48 | 55.95 | 64.60 | 73.65 | 71.52 | 72.52 | 71.32 | 60.18 | 48.46 | 40.63 | 60.82 | |||||||||||||
YRS | 66 | 67 | 65 | 67 | 67 | 69 | 69 | 69 | 69 | 65 | 63 | 66 | 55 |