YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 62.31 | b | 62.31 | k |
1903 | 63.55 | 60.79 | 74.42 | 84.43 | 92.52 | 104.23 | 106.73 | a | 105.52 | 95.47 | 86.10 | 77.17 | 65.87 | 84.73 | ||||||||||||
1904 | 62.13 | 73.57 | a | 78.45 | 87.00 | 94.77 | 104.57 | 105.00 | 101.26 | 95.79 | a | 86.55 | 77.13 | 64.87 | 85.92 | |||||||||||
1905 | 65.40 | a | 65.57 | 71.84 | 82.47 | 91.87 | 106.80 | 111.42 | 109.29 | 104.00 | 92.90 | 73.50 | 64.19 | 86.60 | ||||||||||||
1906 | 66.32 | 73.71 | 78.74 | 86.33 | 95.39 | 106.80 | 109.39 | 103.61 | 103.17 | 92.77 | 77.17 | 66.42 | 88.32 | |||||||||||||
1907 | 65.58 | 74.96 | 77.65 | 90.27 | 93.52 | 101.10 | 109.65 | 107.23 | 103.40 | 89.03 | 76.48 | a | 70.29 | 88.26 | ||||||||||||
1908 | 69.42 | 65.97 | 82.90 | ----- | z | ----- | z | 109.41 | a | 101.43 | a | ----- | z | 103.17 | 97.81 | d | ----- | z | ----- | z | 90.02 | e | ||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 106.43 | 103.68 | ----- | z | 102.63 | 89.19 | 77.73 | 65.90 | 90.93 | f | ||||||
1912 | 75.00 | a | 76.11 | b | 69.67 | d | 78.55 | a | 95.71 | 108.17 | a | 103.45 | 105.55 | 101.23 | 85.84 | 77.10 | 63.16 | 86.63 | ||||||||
1913 | 61.74 | 67.54 | 73.45 | 90.90 | 96.39 | 103.57 | 106.32 | 105.13 | 101.77 | 92.84 | 78.40 | 64.35 | 86.87 | |||||||||||||
1914 | 69.06 | 71.67 | p | 72.83 | y | 86.63 | 95.94 | 104.67 | 106.29 | 109.03 | 105.00 | 89.03 | 79.97 | 61.93 | b | 90.76 | b | |||||||||
1915 | 62.55 | 66.71 | 74.97 | 86.08 | f | 89.58 | 105.43 | 107.10 | 108.32 | 101.52 | a | 96.13 | 78.10 | 68.29 | 87.15 | a | ||||||||||
1916 | 60.87 | a | 75.24 | 82.03 | 89.17 | 95.97 | a | 107.23 | 107.81 | 105.23 | 100.07 | 86.39 | 76.73 | 64.13 | 87.57 | |||||||||||
1917 | 61.58 | 73.50 | 75.52 | 83.77 | 89.48 | 107.30 | 107.61 | 106.42 | 101.64 | b | 95.16 | 82.17 | 74.68 | 88.24 | ||||||||||||
1918 | 66.16 | 71.75 | 78.06 | 85.93 | 92.42 | 107.57 | 106.74 | 102.68 | 102.60 | 91.45 | ----- | z | 62.47 | a | 87.98 | a | ||||||||||
1919 | 65.45 | 65.46 | 74.00 | 88.57 | 95.74 | 105.67 | 103.29 | 101.68 | 97.73 | 80.84 | 72.77 | 66.23 | 84.79 | |||||||||||||
1920 | 62.35 | 68.25 | a | 70.32 | 80.33 | 93.71 | 101.07 | 109.65 | 103.26 | 100.43 | 85.03 | 69.62 | a | 63.19 | 83.94 | |||||||||||
1921 | 65.26 | 71.79 | 81.03 | 83.00 | a | 90.74 | 104.33 | 104.57 | a | 100.96 | f | 99.45 | a | 91.17 | a | 70.87 | 63.97 | a | 84.20 | a | ||||||
1922 | 59.95 | i | 63.61 | 62.03 | 74.80 | 97.17 | a | 107.63 | 107.52 | 106.06 | 102.93 | a | 89.53 | a | 69.77 | 63.52 | d | 85.87 | a | |||||||
1923 | 67.00 | a | 68.54 | 70.55 | 80.00 | 96.57 | c | 102.31 | a | 104.74 | 105.94 | 100.40 | 88.68 | 72.00 | 62.03 | 84.90 | ||||||||||
1924 | 64.32 | f | 75.59 | 73.10 | 82.47 | 103.32 | 108.53 | 108.16 | 110.65 | ----- | z | 89.23 | a | 78.90 | 64.39 | 89.43 | b | |||||||||
1925 | 65.77 | 77.57 | 82.19 | 86.97 | 97.29 | 100.57 | 109.50 | a | 105.19 | 97.90 | 83.06 | 73.30 | 65.70 | a | 87.09 | |||||||||||
1926 | 63.35 | 74.36 | 77.84 | 82.57 | 92.03 | 107.52 | a | 108.81 | 107.95 | i | 100.91 | g | 89.61 | 75.77 | 63.48 | 83.53 | b | |||||||||
1927 | 69.58 | 72.71 | 72.35 | 82.40 | 94.63 | a | 101.90 | 107.10 | a | 101.68 | 93.61 | l | 89.94 | 78.77 | d | 63.13 | 84.93 | a | ||||||||
1928 | 67.77 | 68.69 | 78.48 | 82.83 | 93.84 | 103.07 | 109.03 | 106.27 | i | 103.39 | b | 88.77 | 72.77 | 64.10 | 84.80 | a | ||||||||||
1929 | 61.65 | 65.75 | 74.94 | 81.41 | a | 92.97 | 100.60 | 103.61 | 103.71 | 96.48 | a | 91.13 | 73.77 | 72.32 | 84.86 | |||||||||||
1930 | 62.58 | 75.25 | 72.87 | 87.10 | 85.87 | 99.63 | 104.71 | ----- | z | 98.38 | a | 86.55 | 74.70 | 65.45 | 83.01 | a | ||||||||||
1931 | 65.55 | 66.86 | 76.87 | 84.93 | 93.35 | 99.47 | 107.80 | a | ----- | z | 101.12 | e | 90.19 | 69.37 | 61.55 | 83.37 | a | |||||||||
1932 | 59.55 | 67.93 | 77.68 | 87.30 | 95.58 | 102.23 | 105.16 | 105.87 | 103.63 | 85.81 | 80.63 | 61.48 | 86.07 | |||||||||||||
1933 | 62.68 | 63.46 | 79.48 | 83.40 | 89.90 | 105.27 | 110.29 | 107.48 | 101.60 | 93.29 | 80.63 | 69.48 | 87.25 | |||||||||||||
1934 | 69.97 | 75.86 | 88.09 | i | 93.07 | 101.23 | 100.57 | b | 111.61 | m | ----- | z | 101.17 | 93.74 | 77.03 | 68.48 | 86.79 | c | ||||||||
1935 | 65.55 | 71.00 | 73.16 | 84.46 | f | 90.94 | 108.50 | 108.58 | 102.74 | 99.63 | 90.61 | 72.87 | 67.55 | 86.47 | a | |||||||||||
1936 | 67.74 | 70.48 | 82.32 | 92.30 | 101.42 | 108.77 | 112.17 | g | 106.56 | o | 99.20 | 90.87 | 77.33 | 68.32 | 85.88 | b | ||||||||||
1937 | 55.61 | 69.44 | a | 76.03 | 87.27 | 98.65 | 106.07 | 109.84 | 109.67 | a | 104.90 | 94.42 | 81.70 | 71.03 | 88.72 | |||||||||||
1938 | 69.71 | 71.14 | 76.19 | 88.53 | 91.43 | c | 106.81 | i | 108.10 | 106.57 | a | 104.80 | 91.42 | 77.73 | 69.71 | 86.85 | a | |||||||||
1939 | 66.26 | 62.57 | 81.16 | 91.03 | 98.65 | 107.07 | 113.94 | 106.45 | 97.83 | 89.81 | ----- | z | ----- | z | 91.48 | b | ||||||||||
1940 | 76.30 | k | 73.45 | 82.04 | g | 88.00 | 100.57 | x | 106.00 | e | 107.87 | 105.68 | 99.77 | 87.48 | 72.43 | 66.23 | 89.66 | c | ||||||||
1941 | 64.94 | 69.36 | 71.52 | 76.66 | a | 93.32 | 101.97 | 106.10 | 103.26 | 97.83 | 83.23 | a | 76.40 | 64.94 | 84.13 | |||||||||||
1942 | 66.26 | 66.93 | 75.81 | 84.23 | 95.87 | 106.03 | 110.03 | 104.29 | 101.79 | a | 87.81 | ----- | z | 70.24 | f | 89.91 | b | |||||||||
1943 | 69.39 | 76.04 | ----- | z | ----- | z | 99.23 | 101.90 | 106.48 | 100.87 | 99.13 | 86.84 | 77.97 | 65.15 | e | 88.30 | b | |||||||||
1944 | 64.39 | 65.21 | 72.63 | a | 81.47 | ----- | z | ----- | z | ----- | z | ----- | z | 90.86 | w | 89.23 | e | 71.10 | 66.94 | 72.99 | e | |||||
1945 | 63.94 | 72.82 | 72.55 | 85.50 | 96.03 | 103.33 | 108.29 | 105.68 | 102.70 | 91.33 | a | 77.13 | 64.74 | d | 87.00 | |||||||||||
1946 | 63.04 | d | 72.04 | 81.55 | 93.87 | 96.68 | 109.60 | 108.41 | d | 104.75 | g | 97.67 | c | 81.08 | r | 68.97 | 67.77 | 85.96 | b | |||||||
1947 | 64.29 | 76.57 | 79.35 | 86.63 | 100.03 | a | 105.69 | a | 111.29 | 105.80 | a | 101.88 | m | 90.90 | 70.97 | 63.61 | 86.83 | a | ||||||||
1948 | 69.57 | a | 68.34 | 71.84 | 88.73 | 96.65 | 103.80 | 106.84 | 104.97 | 103.07 | 90.52 | 73.40 | 65.26 | 86.91 | ||||||||||||
1949 | 55.29 | 67.21 | 76.93 | a | 90.40 | 94.68 | 103.47 | 104.77 | 105.29 | 101.03 | 86.03 | 83.77 | 67.19 | 86.34 | ||||||||||||
1950 | 66.29 | 75.11 | 79.90 | 94.52 | i | 94.94 | 103.63 | 106.90 | 108.19 | j | 98.73 | 95.86 | b | 83.33 | 76.55 | b | 88.13 | b | ||||||||
1951 | 66.22 | m | 70.64 | 79.03 | a | 85.48 | e | 96.26 | d | 103.19 | c | 108.29 | 98.09 | t | 92.42 | r | 90.35 | 74.80 | 65.74 | 85.98 | c | |||||
1952 | 65.22 | h | ----- | z | 70.11 | l | 85.80 | j | 98.29 | g | ----- | z | 107.18 | t | 106.35 | k | 100.04 | e | ----- | z | ----- | z | ----- | z | 100.04 | k |
1953 | ----- | z | ----- | z | ----- | z | 84.30 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.75 | r | ----- | z | 84.30 | k | |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 91.32 | c | 101.80 | 100.39 | 97.55 | 98.73 | 91.84 | 75.50 | 69.74 | 90.86 | d | |||||||
1956 | 69.94 | 65.38 | 81.35 | e | 80.22 | l | ----- | z | ----- | z | ----- | z | 102.48 | ----- | z | 89.71 | q | 76.40 | o | ----- | z | 79.79 | h | |||
1957 | ----- | z | ----- | z | ----- | z | 82.83 | 87.97 | 102.77 | 103.14 | b | 101.17 | y | ----- | z | 76.79 | l | 70.00 | ----- | z | 89.34 | g | ||||
1958 | ----- | z | ----- | z | 68.71 | 83.63 | 99.26 | 103.20 | 104.65 | 102.23 | 97.20 | 88.42 | 76.10 | 75.38 | j | 91.49 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 65.12 | 70.24 | 75.94 | 85.40 | 94.80 | 104.59 | 107.03 | 104.98 | 100.69 | 89.68 | 75.73 | 66.04 | 86.43 | |||||||||||||
S.D. | 3.79 | 4.33 | 4.42 | 4.17 | 3.61 | 2.76 | 2.70 | 2.72 | 2.52 | 3.49 | 3.83 | 3.34 | 1.43 | |||||||||||||
SKEW | -0.25 | -0.17 | -0.59 | -0.19 | -0.03 | -0.01 | -0.13 | -0.24 | -0.18 | -0.07 | 0.06 | 1.13 | -0.21 | |||||||||||||
MAX | 75.00 | 77.57 | 82.90 | 93.87 | 103.32 | 109.60 | 113.94 | 110.65 | 105.00 | 97.81 | 83.77 | 76.55 | 88.72 | |||||||||||||
MIN | 55.29 | 60.79 | 62.03 | 74.80 | 85.87 | 99.47 | 100.39 | 97.55 | 95.47 | 80.84 | 68.97 | 61.48 | 83.94 | |||||||||||||
YRS | 43 | 46 | 44 | 44 | 46 | 48 | 47 | 37 | 44 | 48 | 46 | 46 | 21 |