YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1899 | ----- | z | 68.14 | 70.06 | 75.60 | 71.32 | 79.33 | 88.42 | 86.03 | 91.60 | 78.35 | 76.10 | 72.23 | 77.93 | a | |||||||||||
1900 | 70.52 | 74.14 | 75.06 | 70.47 | 79.19 | 81.53 | 87.84 | 82.52 | 82.37 | 80.61 | 82.97 | 76.10 | 78.61 | |||||||||||||
1901 | 67.07 | a | 73.73 | q | ----- | z | ----- | z | 71.06 | m | ----- | z | ----- | z | 90.30 | k | 82.13 | 81.42 | 77.63 | 75.35 | 76.72 | g | ||||
1902 | 68.48 | 67.32 | 65.76 | b | 72.00 | 74.68 | 81.34 | a | 83.84 | 85.55 | 86.77 | 78.50 | a | 71.40 | 68.87 | 75.38 | ||||||||||
1903 | 68.71 | 63.46 | 68.35 | 69.83 | 77.29 | 82.00 | 87.68 | 88.10 | 82.80 | 84.71 | 80.04 | b | 74.25 | c | 77.27 | |||||||||||
1904 | 72.77 | a | 69.79 | 71.03 | ----- | z | 75.70 | a | 82.48 | g | 86.27 | a | 90.35 | 88.83 | 83.29 | 81.87 | 70.84 | 79.07 | b | |||||||
1905 | 69.26 | 66.64 | 68.65 | 70.43 | 73.16 | 80.30 | 87.35 | 89.48 | 88.00 | 84.35 | 74.90 | 69.58 | 76.84 | |||||||||||||
1906 | 68.06 | 68.04 | ----- | z | 72.97 | 74.00 | 84.97 | 92.00 | 88.10 | 89.50 | 87.10 | 75.50 | 68.39 | 78.96 | a | |||||||||||
1907 | 63.19 | 73.43 | 69.68 | 73.50 | 77.00 | 82.93 | 91.03 | 86.90 | 88.03 | 79.94 | 78.43 | 72.48 | 78.05 | |||||||||||||
1908 | 69.22 | h | 65.10 | 72.77 | a | 77.33 | 74.23 | 80.87 | 90.74 | 87.90 | 87.07 | 79.23 | 74.00 | 66.26 | 77.77 | a | ||||||||||
1909 | 65.42 | 64.68 | 65.74 | 75.30 | 75.00 | 81.03 | 86.74 | 91.19 | 87.17 | 81.23 | 72.47 | 61.97 | 75.66 | |||||||||||||
1910 | 63.94 | 66.75 | 70.94 | 78.63 | 80.26 | 80.23 | 88.45 | 88.77 | 89.40 | 81.48 | 73.50 | 72.35 | 77.89 | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | 71.57 | 72.52 | j | 80.68 | b | 87.40 | p | 91.95 | k | 85.90 | j | 81.48 | d | 78.18 | b | 66.73 | e | 75.73 | g | |
1912 | 72.71 | j | 72.71 | e | 63.73 | a | 66.19 | d | 73.70 | k | 80.13 | 85.26 | 85.48 | 87.70 | 77.84 | 82.57 | i | 70.45 | b | 76.61 | c | |||||
1913 | 65.81 | 65.86 | 68.97 | 74.37 | 73.71 | 76.66 | a | 85.19 | 89.90 | 90.63 | 82.13 | 70.47 | 64.90 | 75.72 | ||||||||||||
1914 | 66.26 | 68.71 | 74.06 | 73.97 | 70.74 | 80.43 | 83.03 | 83.26 | 83.43 | 79.58 | 78.50 | 61.90 | 75.32 | |||||||||||||
1915 | 64.29 | 63.50 | 71.48 | 68.57 | 72.90 | 82.37 | 85.42 | 90.39 | 80.17 | 83.13 | 75.83 | 67.45 | 75.46 | |||||||||||||
1916 | 59.10 | 71.93 | 73.68 | 75.63 | 77.03 | 81.70 | 83.10 | 86.61 | 82.33 | 73.71 | 75.90 | 66.42 | 75.60 | |||||||||||||
1917 | 61.29 | 68.26 | a | 69.06 | 71.53 | 69.48 | 87.83 | 89.42 | 89.00 | 91.27 | 86.23 | 80.33 | 80.90 | 78.72 | ||||||||||||
1918 | 68.94 | 68.89 | 70.39 | 73.93 | 74.42 | 87.97 | 89.55 | 89.61 | 90.40 | 84.39 | 73.57 | 68.48 | 78.38 | |||||||||||||
1919 | 73.35 | 63.68 | 67.16 | 74.43 | 73.71 | 87.93 | 87.77 | 88.52 | 85.80 | 77.90 | 74.48 | a | 71.35 | 77.18 | ||||||||||||
1920 | 67.94 | 67.21 | 66.13 | 70.40 | 74.71 | 79.77 | 89.55 | 89.27 | a | 85.07 | 76.97 | 74.07 | 68.42 | 75.79 | ||||||||||||
1921 | 66.71 | 70.68 | 71.13 | 74.23 | 68.23 | 79.07 | 87.81 | 88.39 | 87.07 | 79.74 | 78.37 | 70.71 | 76.84 | |||||||||||||
1922 | 63.26 | 64.21 | 65.71 | 67.90 | 78.26 | 83.90 | 86.81 | 90.84 | 92.80 | 82.16 | 74.00 | 69.35 | 76.60 | |||||||||||||
1923 | 70.58 | 67.64 | 73.61 | 69.57 | 81.45 | 79.73 | 87.58 | 87.68 | 86.97 | 81.13 | 78.67 | 67.94 | 77.71 | |||||||||||||
1924 | 70.68 | 77.21 | 67.06 | 69.13 | 79.13 | 87.13 | 87.16 | 87.94 | 90.50 | 78.03 | 78.37 | 66.65 | 78.25 | |||||||||||||
1925 | 70.16 | 71.86 | 71.39 | 71.43 | 77.00 | 81.63 | 89.90 | 89.32 | 86.20 | 73.68 | 73.30 | 71.45 | 77.28 | |||||||||||||
1926 | 69.58 | 72.18 | 73.74 | 72.67 | 77.26 | 82.27 | 87.55 | 88.84 | 84.20 | 82.55 | 83.53 | 63.90 | 78.19 | |||||||||||||
1927 | 68.03 | 66.00 | 67.13 | 71.80 | 78.45 | 81.07 | 92.61 | 89.10 | 83.93 | 83.10 | 78.30 | 66.42 | 77.16 | |||||||||||||
1928 | 73.03 | 70.79 | 72.90 | 77.70 | 77.32 | 80.37 | 88.58 | 88.03 | 92.33 | 79.55 | 76.53 | 69.81 | 78.91 | |||||||||||||
1929 | 65.35 | 64.86 | 68.81 | 68.80 | 81.55 | 84.27 | 89.67 | g | 93.87 | 83.30 | 85.65 | 82.03 | 78.19 | 77.88 | a | |||||||||||
1930 | 64.55 | 72.68 | 71.16 | 77.20 | 72.35 | 79.53 | 89.77 | 88.45 | 81.97 | 82.65 | 77.27 | 71.42 | 77.42 | |||||||||||||
1931 | 68.03 | 65.39 | 74.55 | 75.83 | 78.68 | 82.57 | 89.35 | 87.39 | 86.03 | 81.00 | 68.70 | 63.68 | 76.77 | |||||||||||||
1932 | 61.29 | 63.97 | 69.74 | 73.87 | 73.77 | 79.47 | 82.61 | 83.42 | 80.30 | 75.06 | 80.33 | 63.61 | 73.95 | |||||||||||||
1933 | 63.84 | 64.04 | 72.06 | 69.23 | 71.03 | 80.12 | m | 84.26 | 86.83 | a | 80.76 | a | 81.87 | 80.87 | 69.23 | 74.91 | a | |||||||||
1934 | 70.71 | 69.04 | 79.13 | 79.17 | 81.39 | 75.97 | a | 88.17 | a | 87.00 | 88.27 | 81.45 | 73.97 | 68.26 | 78.54 | |||||||||||
1935 | 64.13 | 67.64 | 64.71 | 73.07 | 73.97 | 80.87 | 89.29 | 89.00 | 86.27 | 79.19 | 72.50 | 70.58 | 75.93 | |||||||||||||
1936 | 70.87 | 65.52 | 71.68 | 73.77 | 78.52 | 83.57 | 89.48 | 89.81 | 86.30 | 79.29 | 79.30 | 68.35 | 78.04 | |||||||||||||
1937 | 56.81 | 64.54 | 68.87 | 74.07 | 74.52 | 83.07 | 87.77 | 89.13 | 89.13 | 85.29 | 76.33 | 73.20 | a | 76.89 | ||||||||||||
1938 | 72.19 | 66.14 | 66.32 | 73.47 | 77.10 | 78.67 | 86.13 | 87.87 | 92.67 | 79.65 | 77.73 | 72.48 | 77.53 | |||||||||||||
1939 | 65.97 | 62.00 | 66.29 | 76.23 | 77.13 | 82.67 | 87.48 | 90.00 | 88.14 | b | 84.77 | 78.57 | 77.45 | 78.06 | ||||||||||||
1940 | 67.67 | a | 68.55 | 74.06 | 74.30 | 81.84 | 80.93 | 89.84 | 87.03 | 85.20 | 83.42 | 75.53 | 73.06 | 78.45 | ||||||||||||
1941 | 66.39 | 68.36 | 70.06 | 67.73 | 80.30 | a | 80.43 | 89.29 | 86.65 | 82.97 | 77.84 | 77.70 | 66.13 | 76.15 | ||||||||||||
1942 | 70.73 | a | 67.04 | 71.23 | 69.53 | 76.17 | a | 79.14 | a | 89.84 | 87.77 | 85.13 | 80.55 | 77.17 | 72.00 | 77.19 | ||||||||||
1943 | 68.52 | 71.07 | 68.90 | 72.77 | 78.90 | a | 80.73 | 88.17 | a | 87.61 | 91.48 | a | 81.00 | 81.20 | 66.87 | 78.10 | ||||||||||
1944 | 68.39 | 64.79 | 71.74 | 71.07 | 75.65 | 76.97 | 85.00 | 91.26 | 85.43 | 82.23 | 69.33 | 71.73 | a | 76.13 | ||||||||||||
1945 | 66.70 | a | 66.81 | a | 64.97 | 71.87 | 74.46 | e | 76.79 | b | 85.59 | b | 89.52 | 88.50 | 81.26 | 77.67 | 70.13 | 76.19 | ||||||||
1946 | 70.84 | 69.36 | 69.55 | 75.10 | 74.16 | 90.00 | a | 89.03 | 90.81 | 91.66 | a | 79.13 | 71.37 | 68.77 | 78.31 | |||||||||||
1947 | 71.16 | 74.32 | 72.97 | 76.76 | a | 78.23 | 79.93 | 91.65 | 87.61 | 89.63 | 81.68 | 73.17 | 68.52 | 78.80 | ||||||||||||
1948 | 73.61 | 65.93 | 66.26 | 74.83 | 76.81 | 79.03 | 86.17 | a | 86.77 | 89.60 | 78.74 | 79.46 | f | 66.06 | 76.71 | a | ||||||||||
1949 | 55.77 | 61.64 | 65.90 | 74.00 | 74.65 | 82.90 | 84.74 | 87.71 | 88.57 | 78.33 | d | 83.80 | 69.61 | 75.64 | ||||||||||||
1950 | 64.29 | 67.89 | 70.03 | 73.70 | 72.39 | 79.20 | 86.17 | a | 86.32 | 83.13 | 85.52 | 80.90 | 78.77 | 77.36 | ||||||||||||
1951 | 68.26 | 70.32 | 73.06 | 71.10 | 75.16 | 78.20 | 86.97 | 87.35 | 87.80 | 83.06 | 73.83 | 64.87 | 76.67 | |||||||||||||
1952 | 60.00 | 66.36 | a | 65.65 | 75.03 | 83.90 | 79.74 | c | 89.83 | a | 89.45 | 93.73 | 85.84 | 71.47 | 66.48 | 77.29 | ||||||||||
1953 | 74.00 | 78.79 | 72.23 | 74.50 | 80.81 | 84.13 | 89.26 | 86.90 | 87.97 | 86.13 | 79.43 | 76.90 | 80.92 | |||||||||||||
1954 | 72.03 | 83.36 | ----- | z | ----- | z | 76.38 | w | 79.37 | 90.58 | 86.29 | 89.73 | 81.90 | 78.07 | 70.10 | 81.27 | c | |||||||||
1955 | 63.13 | 68.39 | 73.10 | 74.20 | 73.39 | 80.67 | 85.10 | 92.13 | 91.27 | 78.10 | a | 72.27 | 66.42 | 76.51 | ||||||||||||
1956 | 66.45 | k | 63.72 | 74.23 | 69.67 | 78.03 | 85.04 | b | 87.81 | 86.81 | 94.97 | 78.97 | 81.67 | 74.84 | 79.61 | a | ||||||||||
1957 | 60.87 | 67.57 | 68.39 | 71.60 | 71.87 | a | 85.77 | 91.03 | 90.26 | 87.17 | a | 74.10 | 69.93 | 71.84 | 75.87 | |||||||||||
1958 | 70.42 | 68.19 | a | 63.16 | 74.83 | a | 81.03 | 83.17 | 88.32 | 89.26 | 91.83 | 87.81 | 75.37 | 76.39 | 79.15 | |||||||||||
1959 | 72.48 | 65.39 | 78.77 | 77.97 | 74.87 | 85.03 | 92.10 | 89.48 | 85.37 | 84.35 | h | ----- | z | ----- | z | 80.16 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 67.24 | 68.18 | 70.05 | 73.04 | 76.11 | 81.60 | 87.89 | 88.25 | 87.31 | 81.08 | 76.53 | 69.96 | 77.18 | |||||||||||||
S.D. | 4.25 | 4.09 | 3.51 | 2.93 | 3.37 | 2.96 | 2.36 | 2.05 | 3.55 | 3.22 | 3.72 | 4.18 | 1.30 | |||||||||||||
SKEW | -0.63 | 1.27 | 0.23 | -0.11 | 0.05 | 0.72 | -0.24 | -0.29 | -0.09 | -0.17 | -0.08 | 0.42 | 0.13 | |||||||||||||
MAX | 74.00 | 83.36 | 79.13 | 79.17 | 83.90 | 90.00 | 92.61 | 93.87 | 94.97 | 87.81 | 83.80 | 80.90 | 80.92 | |||||||||||||
MIN | 55.77 | 61.64 | 63.16 | 66.19 | 68.23 | 75.97 | 82.61 | 82.52 | 80.17 | 73.68 | 68.70 | 61.90 | 73.95 | |||||||||||||
YRS | 56 | 59 | 57 | 58 | 57 | 58 | 58 | 59 | 60 | 60 | 58 | 60 | 48 |