YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1899 | ----- | z | 52.55 | 55.11 | 60.35 | 59.40 | 66.33 | 71.44 | 70.19 | 72.27 | 62.84 | 59.38 | 54.23 | 62.19 | a | |||||||||||
1900 | 55.95 | 56.00 | 59.85 | 56.48 | 64.76 | 67.90 | 72.95 | 69.35 | 65.35 | 63.47 | 63.50 | 55.81 | 62.61 | |||||||||||||
1901 | 52.67 | a | 60.36 | q | ----- | z | ----- | z | 61.58 | m | ----- | z | ----- | z | 74.72 | k | 66.95 | 65.11 | 60.47 | 55.87 | 60.21 | g | ||||
1902 | 52.98 | 52.70 | 52.34 | c | 57.73 | 61.47 | 66.81 | a | 69.45 | 71.41 | b | 70.63 | 63.93 | a | 56.13 | 53.42 | 60.75 | |||||||||
1903 | 53.50 | a | 49.73 | 55.56 | 58.15 | 64.44 | 67.79 | a | 71.43 | a | 73.05 | 70.12 | 65.76 | 61.30 | b | 53.84 | c | 62.06 | ||||||||
1904 | 53.23 | a | 54.55 | a | 57.05 | ----- | z | 63.73 | a | 71.95 | k | 71.83 | d | 81.56 | e | 77.94 | c | 72.92 | 69.12 | i | 54.81 | 65.29 | c | |||
1905 | 55.47 | 57.18 | 58.87 | 59.23 | 61.69 | 66.62 | 72.05 | 74.21 | 71.00 | 65.53 | 58.37 | 52.43 | a | 62.72 | ||||||||||||
1906 | 52.33 | a | 56.91 | ----- | z | 59.55 | 62.26 | 68.70 | 76.42 | 73.63 | 71.98 | 68.23 | 58.33 | 55.02 | 63.94 | a | ||||||||||
1907 | 51.07 | b | 59.11 | 56.52 | 60.60 | a | 63.53 | 67.70 | 74.55 | 72.08 | a | 69.83 | 66.65 | 59.57 | 55.73 | 63.08 | ||||||||||
1908 | 54.98 | h | 52.91 | 57.15 | a | 62.12 | 59.87 | 65.48 | 73.90 | 74.60 | 71.25 | 61.61 | 58.68 | 51.68 | 62.66 | a | ||||||||||
1909 | 53.39 | 52.89 | 53.82 | 59.93 | 62.73 | 67.75 | 70.82 | 75.13 | 70.62 | 64.18 | 56.28 | 51.15 | 61.56 | |||||||||||||
1910 | 50.11 | 51.38 | 57.76 | 62.22 | 65.98 | a | 66.67 | 73.08 | a | 73.03 | 72.72 | 65.58 | 58.85 | 54.79 | 62.68 | |||||||||||
1911 | ----- | z | ----- | z | ----- | z | 57.83 | 59.94 | n | 66.76 | g | 71.20 | u | 73.82 | l | 69.88 | r | 63.52 | h | 59.19 | c | 51.83 | h | 58.51 | j | |
1912 | 56.27 | p | 54.69 | m | 53.66 | b | 55.56 | f | 62.22 | o | 67.40 | a | 71.84 | 71.00 | 69.86 | b | 62.90 | 60.12 | q | 51.50 | i | 66.11 | f | |||
1913 | 49.42 | 53.04 | 53.82 | 58.98 | 61.45 | 65.19 | a | 71.56 | 74.10 | 73.80 | 65.53 | 58.68 | 52.24 | 61.49 | ||||||||||||
1914 | 53.76 | 55.41 | 59.97 | 60.90 | 61.06 | 66.88 | 70.16 | 70.19 | 69.08 | 65.26 | 62.85 | 51.11 | 62.22 | |||||||||||||
1915 | 51.87 | 53.04 | 57.68 | 58.87 | 61.63 | 68.53 | 72.27 | 74.15 | 66.17 | 64.65 | 58.13 | 52.94 | 61.66 | |||||||||||||
1916 | 50.27 | 58.12 | 60.52 | 60.95 | 62.71 | 66.90 | 70.31 | 72.11 | 68.72 | 60.44 | 56.37 | 50.60 | 61.50 | |||||||||||||
1917 | 49.69 | 53.69 | a | 53.48 | 57.77 | 59.58 | 70.50 | 75.06 | 74.32 | 72.93 | 68.89 | 61.08 | 58.32 | 62.94 | ||||||||||||
1918 | 52.63 | 54.89 | 57.48 | 60.45 | 62.74 | 73.42 | 73.98 | 75.68 | 74.87 | 69.69 | 58.23 | 52.60 | 63.89 | |||||||||||||
1919 | 53.79 | 51.43 | 53.90 | 60.55 | 63.79 | 70.37 | 73.58 | 73.82 | 70.83 | 61.61 | 57.73 | b | 54.73 | 62.18 | ||||||||||||
1920 | 53.69 | 55.45 | 54.42 | 57.12 | 62.77 | 66.87 | 73.26 | 74.57 | a | 69.55 | 61.26 | 57.12 | 52.42 | 61.54 | ||||||||||||
1921 | 51.77 | 53.98 | 57.56 | 57.68 | 58.77 | 66.52 | 73.82 | 73.65 | 70.50 | 66.05 | 60.08 | 57.66 | 62.34 | |||||||||||||
1922 | 49.55 | 52.11 | 52.95 | 55.45 | 63.68 | 69.30 | 72.39 | 75.52 | 75.28 | 65.11 | 55.35 | 55.94 | 61.88 | |||||||||||||
1923 | 54.24 | 53.04 | 55.76 | 58.58 | 66.34 | 66.20 | 71.73 | 72.39 | 71.47 | 63.81 | 60.48 | 53.44 | 62.29 | |||||||||||||
1924 | 51.97 | 57.47 | 54.23 | 57.73 | 65.48 | 70.40 | 71.97 | 72.31 | 71.85 | 61.31 | 58.67 | 51.79 | 62.10 | |||||||||||||
1925 | 51.65 | 56.48 | 56.39 | 58.60 | 64.61 | 68.40 | 75.31 | 73.29 | 69.15 | 62.00 | 57.63 | 55.79 | 62.44 | |||||||||||||
1926 | 52.61 | 57.27 | 60.55 | 63.42 | 65.21 | 69.92 | 72.66 | 74.05 | 68.40 | 65.16 | 63.13 | 51.34 | 63.64 | |||||||||||||
1927 | 52.87 | 55.11 | 54.65 | 58.80 | 63.95 | 67.82 | 75.34 | 73.66 | 69.75 | 65.68 | 61.52 | 52.26 | 62.62 | |||||||||||||
1928 | 54.35 | 53.97 | 58.32 | 58.88 | 65.48 | 67.75 | 73.15 | 72.16 | 72.55 | 63.60 | 58.55 | 52.85 | 62.63 | |||||||||||||
1929 | 50.52 | 50.27 | 54.63 | 57.00 | 65.69 | 68.38 | 74.88 | g | 77.79 | 70.00 | 69.03 | 58.78 | 57.65 | 61.79 | a | |||||||||||
1930 | 52.55 | 56.88 | 58.24 | 62.95 | 60.42 | 66.38 | 73.73 | 74.08 | 68.43 | 65.58 | 59.97 | 51.68 | 62.57 | |||||||||||||
1931 | 52.16 | 54.04 | 57.19 | 62.65 | 66.52 | 69.58 | 75.60 | 75.26 | 71.75 | 65.13 | 54.97 | 50.40 | 62.94 | |||||||||||||
1932 | 48.94 | 53.05 | 55.76 | 57.77 | 61.65 | 65.55 | a | 69.13 | 69.55 | 66.57 | 59.77 | 60.22 | 50.00 | 59.83 | ||||||||||||
1933 | 48.65 | 48.95 | 55.03 | 56.50 | 57.58 | 65.41 | m | 72.32 | 73.57 | b | 66.69 | a | 65.45 | b | 58.34 | e | 52.98 | 59.64 | a | |||||||
1934 | 52.69 | 55.77 | f | 61.65 | 63.62 | 65.71 | 65.24 | a | 73.33 | a | 72.97 | 72.05 | 65.22 | d | 58.22 | 55.19 | e | 64.17 | a | |||||||
1935 | 51.89 | 54.17 | e | 51.94 | e | 60.59 | a | 62.16 | 67.65 | 73.11 | 75.71 | 71.75 | 63.71 | 55.08 | 53.97 | 61.81 | ||||||||||
1936 | 53.17 | k | 53.79 | e | 57.95 | a | 60.57 | 64.52 | 68.90 | a | 75.45 | a | 75.18 | 70.92 | 65.00 | 60.50 | 53.77 | 64.23 | a | |||||||
1937 | 45.56 | 51.89 | 54.85 | d | 59.31 | a | 63.15 | 68.37 | 73.17 | a | 73.88 | e | 73.58 | 67.13 | 59.57 | 56.90 | e | 62.28 | ||||||||
1938 | 54.87 | a | 53.52 | g | 55.44 | 60.02 | 63.33 | b | 67.07 | b | 72.08 | 73.85 | 74.33 | 64.05 | c | 56.54 | d | 57.38 | a | 63.54 | a | |||||
1939 | 52.48 | 48.45 | g | 54.47 | 62.43 | 63.76 | 67.78 | 72.80 | a | 75.15 | a | 74.15 | g | 66.30 | f | 60.19 | f | 58.61 | 63.44 | d | ||||||
1940 | 54.38 | f | 55.59 | 58.54 | e | 61.77 | b | 67.37 | 68.90 | 73.08 | 72.61 | 69.90 | 66.41 | c | 58.04 | f | 58.06 | 65.22 | b | |||||||
1941 | 53.82 | 56.04 | e | 58.22 | d | 57.45 | b | 66.60 | b | 67.00 | c | 73.16 | 72.71 | b | 67.38 | 63.97 | 59.70 | 52.19 | 62.35 | |||||||
1942 | 53.78 | a | 50.71 | 53.81 | 57.73 | 62.24 | b | 66.60 | a | 73.47 | 72.68 | 69.25 | 64.71 | 58.10 | 54.29 | 61.45 | ||||||||||
1943 | 53.26 | 55.48 | 57.26 | 60.20 | 64.98 | c | 66.37 | 72.77 | a | 73.84 | 72.83 | c | 65.37 | a | 59.79 | a | 53.10 | a | 62.94 | |||||||
1944 | 52.15 | a | 51.00 | 54.94 | 56.52 | 63.16 | 64.41 | a | 69.87 | 72.90 | 70.32 | 65.27 | 56.63 | 54.25 | a | 60.95 | ||||||||||
1945 | 50.41 | b | 52.39 | a | 51.48 | a | 56.17 | 60.88 | e | 65.12 | d | 71.96 | d | 75.29 | 73.37 | 67.32 | a | 58.12 | 54.23 | 61.39 | ||||||
1946 | 52.84 | 50.93 | 54.42 | 61.27 | 62.85 | a | 69.67 | a | 73.27 | a | 74.63 | 72.97 | a | 61.94 | 55.07 | b | 53.09 | b | 61.91 | |||||||
1947 | 51.27 | 56.50 | 57.56 | 61.38 | b | 64.93 | a | 67.20 | 72.34 | b | 72.50 | 73.48 | a | 65.45 | 55.62 | 51.98 | 62.52 | |||||||||
1948 | 53.52 | 50.22 | 51.03 | 58.90 | 61.66 | 65.18 | 69.58 | a | 70.06 | 71.15 | 64.40 | 57.83 | f | 49.55 | 60.48 | a | ||||||||||
1949 | 43.47 | 48.21 | 52.00 | 59.97 | 61.87 | a | 68.67 | 70.69 | 71.47 | 72.27 | 62.28 | d | 63.18 | 51.35 | 60.45 | |||||||||||
1950 | 48.35 | 52.57 | 54.66 | 59.47 | 59.32 | 64.55 | 71.65 | a | 69.63 | 67.85 | 66.02 | 60.80 | 59.03 | 61.16 | ||||||||||||
1951 | 52.84 | 52.61 | 56.40 | 60.08 | 62.11 | 66.60 | 72.16 | 71.73 | 71.92 | 65.34 | 58.08 | 51.65 | 61.79 | |||||||||||||
1952 | 47.84 | 51.52 | a | 53.00 | 60.30 | 66.71 | 65.48 | c | 73.27 | a | 73.73 | 74.90 | 67.85 | 55.97 | 51.48 | 61.84 | ||||||||||
1953 | 56.08 | 55.84 | 55.39 | 59.60 | 62.94 | 67.52 | 74.37 | a | 71.88 | b | 71.78 | 67.87 | 62.28 | 56.53 | 63.51 | |||||||||||
1954 | 55.19 | 63.39 | ----- | z | ----- | z | 64.14 | x | 66.62 | a | 75.45 | a | 71.95 | a | 71.33 | 64.18 | 59.87 | 52.13 | 64.46 | c | ||||||
1955 | 49.29 | 51.11 | 56.16 | 56.88 | 61.13 | 66.50 | 70.69 | 75.76 | 74.05 | 63.67 | a | 56.77 | 54.32 | 61.36 | ||||||||||||
1956 | 52.88 | k | 48.97 | 55.39 | 58.00 | 64.68 | 69.48 | b | 72.69 | 70.98 | 75.07 | 64.10 | 59.10 | 54.24 | 62.97 | a | ||||||||||
1957 | 51.26 | 56.41 | 55.45 | 59.10 | 61.58 | a | 71.38 | 74.06 | 74.95 | 71.28 | a | 62.08 | 54.65 | 54.81 | 62.25 | |||||||||||
1958 | 52.65 | 55.85 | a | 52.76 | 60.40 | a | 66.29 | 68.83 | 72.45 | 75.63 | 73.55 | 70.15 | 57.63 | 56.16 | 63.53 | |||||||||||
1959 | 55.23 | 52.11 | 60.60 | 64.55 | 63.42 | 70.10 | 76.71 | 75.79 | 72.30 | 66.63 | h | ----- | z | ----- | z | 65.64 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.01 | 53.83 | 55.89 | 59.51 | 63.13 | 67.64 | 72.77 | 73.44 | 71.16 | 64.95 | 58.71 | 53.89 | 62.13 | |||||||||||||
S.D. | 2.45 | 2.85 | 2.50 | 2.05 | 2.22 | 1.80 | 1.70 | 2.11 | 2.51 | 2.46 | 2.20 | 2.33 | 0.85 | |||||||||||||
SKEW | -1.08 | 0.53 | 0.26 | 0.29 | -0.21 | 0.63 | 0.08 | 0.67 | -0.08 | 0.55 | 0.19 | 0.37 | -0.27 | |||||||||||||
MAX | 56.08 | 63.39 | 61.65 | 64.55 | 67.37 | 73.42 | 76.71 | 81.56 | 77.94 | 72.92 | 63.50 | 59.03 | 63.89 | |||||||||||||
MIN | 43.47 | 48.21 | 51.03 | 55.45 | 57.58 | 64.41 | 69.13 | 69.35 | 65.35 | 59.77 | 54.65 | 49.55 | 59.83 | |||||||||||||
YRS | 54 | 55 | 57 | 57 | 57 | 57 | 58 | 59 | 59 | 58 | 55 | 58 | 43 |