YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 97.60 | u | 102.68 | 97.63 | 87.41 | i | 70.60 | 60.20 | a | 82.78 | h | |||
1914 | 64.10 | 66.52 | a | 76.19 | 85.17 | 94.81 | 101.90 | 102.87 | a | 103.57 | a | 97.10 | 83.97 | 77.23 | 60.74 | 84.51 | ||||||||||
1915 | 62.23 | 66.14 | 73.23 | 81.83 | 85.42 | 101.27 | 101.32 | 104.94 | 89.23 | 83.80 | a | 82.31 | q | 67.35 | 83.34 | a | ||||||||||
1916 | 60.45 | 75.28 | 79.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.89 | i | |||
1917 | ----- | z | ----- | z | ----- | z | 85.17 | r | 84.52 | 103.23 | 101.16 | 101.16 | 96.07 | 90.32 | 76.77 | 73.19 | 90.80 | d | ||||||||
1918 | 65.29 | 70.57 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.93 | j | ||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.44 | v | 75.60 | 66.97 | a | 71.28 | j | |
1921 | 69.35 | ----- | z | 82.84 | 85.90 | 89.55 | 100.90 | 102.58 | 100.32 | 99.00 | 92.00 | 80.83 | 71.45 | 88.61 | a | |||||||||||
1922 | 63.13 | 70.15 | a | 71.10 | j | 86.78 | l | 96.29 | 105.45 | a | 107.58 | 104.61 | 101.63 | 90.61 | ----- | z | ----- | z | 92.43 | d | ||||||
1923 | 73.52 | 71.37 | a | 74.13 | 85.00 | 98.58 | 102.17 | 104.26 | 99.81 | 96.86 | h | 88.10 | 67.72 | a | 64.30 | a | 84.45 | a | ||||||||
1924 | 67.10 | a | 63.70 | s | 66.21 | b | 79.13 | 95.48 | ----- | z | 105.33 | a | 106.06 | ----- | z | ----- | z | ----- | z | 66.32 | l | 86.55 | f | |||
1925 | 66.58 | 77.57 | 80.74 | 85.93 | 98.42 | 100.70 | 108.29 | 100.39 | ----- | z | ----- | z | ----- | z | 68.53 | p | 89.83 | d | ||||||||
1926 | 65.93 | p | 73.61 | 79.71 | 81.30 | 93.26 | 105.20 | 106.42 | 105.19 | 100.37 | 92.48 | 80.30 | 64.97 | 89.35 | a | |||||||||||
1927 | 72.39 | 70.71 | 76.13 | 83.07 | 95.00 | 102.31 | d | 107.81 | 103.19 | 98.61 | l | 96.91 | t | ----- | z | 64.00 | q | 88.83 | d | |||||||
1928 | 70.92 | s | 70.46 | p | 83.64 | t | 87.32 | k | 96.07 | c | 103.33 | c | 108.46 | g | 103.00 | e | 102.65 | j | 90.91 | i | 76.57 | g | 68.22 | h | 100.80 | i |
1929 | 65.81 | j | 64.14 | u | 78.80 | p | 83.64 | h | 96.04 | h | 105.58 | f | 95.14 | x | 104.57 | c | 98.08 | f | 91.91 | h | 78.00 | j | 74.61 | h | 104.57 | k |
1930 | 63.09 | i | 79.89 | i | 78.88 | f | 89.67 | c | 89.67 | a | 106.32 | b | 106.19 | 106.40 | a | 101.43 | 92.86 | j | 77.88 | e | 69.96 | f | 96.79 | e | ||
1931 | 71.46 | c | 70.52 | e | 82.13 | a | 90.30 | c | 101.41 | d | 104.58 | d | 110.55 | b | 103.21 | g | 103.32 | b | ----- | z | 70.46 | d | 65.96 | d | 87.07 | b |
1932 | 62.45 | 72.93 | 84.16 | 88.41 | a | 94.65 | 104.30 | 108.84 | 110.33 | a | 105.33 | 90.97 | 74.63 | 63.40 | a | 88.37 | ||||||||||
1933 | 67.53 | a | 69.28 | c | 83.32 | 84.40 | 89.16 | 109.30 | 111.71 | 106.81 | 106.37 | 98.00 | a | 87.23 | ----- | z | 92.10 | a | ||||||||
1934 | 72.03 | a | 75.61 | 89.94 | 97.34 | a | 103.17 | a | 103.13 | 110.48 | 106.10 | a | 102.27 | 95.97 | 81.97 | 72.71 | 92.56 | |||||||||
1935 | 70.55 | 74.36 | 74.97 | 87.59 | a | 91.61 | 108.60 | 109.77 | 104.73 | a | 102.43 | 91.84 | 77.73 | 69.19 | 88.61 | |||||||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | 101.62 | r | 108.23 | 108.42 | 105.54 | r | 100.27 | 90.23 | ----- | z | 69.52 | 95.33 | g | |||||
1937 | 58.55 | 72.50 | 77.61 | 87.27 | 98.29 | 104.33 | 109.23 | 109.97 | 103.47 | 94.23 | 81.03 | 72.62 | b | 89.09 | ||||||||||||
1938 | 71.77 | 70.93 | 75.32 | 87.83 | a | 94.10 | 104.11 | b | 106.43 | a | 104.29 | 101.17 | 87.81 | 73.63 | 70.48 | 87.32 | ||||||||||
1939 | 65.77 | 62.57 | 79.77 | 90.63 | 98.23 | 105.73 | 108.12 | f | 103.74 | 95.20 | 88.44 | d | 81.10 | 75.45 | 86.06 | a | ||||||||||
1940 | 70.74 | 71.36 | a | 82.53 | a | 87.62 | a | 98.65 | 105.97 | 109.71 | j | 106.16 | 99.93 | 88.84 | 78.17 | 69.39 | 87.21 | a | ||||||||
1941 | 66.90 | 70.22 | a | 72.84 | 76.63 | 93.03 | 101.07 | 106.16 | 101.71 | 97.07 | c | 83.52 | 79.73 | 67.39 | 84.69 | |||||||||||
1942 | 68.68 | 68.79 | 76.06 | 82.00 | 93.33 | d | 100.87 | g | 106.14 | c | 103.40 | a | 101.27 | 88.37 | a | 80.00 | b | 71.16 | 85.38 | a | ||||||
1943 | 66.94 | 76.09 | f | 83.63 | a | 91.48 | a | 96.12 | g | ----- | z | 108.06 | 102.03 | a | 102.66 | a | 90.30 | d | 78.58 | f | 66.27 | a | 88.92 | d | ||
1944 | 65.80 | a | 67.04 | c | 71.08 | r | ----- | z | ----- | z | ----- | z | ----- | z | 105.04 | d | ----- | z | ----- | z | ----- | z | ----- | z | 79.29 | i |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 99.37 | 85.07 | a | 72.57 | 62.37 | a | 79.84 | h | ||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.10 | 64.10 | k | |
1949 | 54.29 | 67.21 | 75.45 | 87.70 | 91.52 | 102.10 | 103.42 | 104.40 | a | 101.50 | 85.57 | a | 84.24 | a | 66.81 | 85.35 | ||||||||||
1950 | 66.55 | 74.89 | 78.16 | 89.47 | 89.89 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.19 | d | 72.81 | j | 77.85 | g | ||||
1951 | 66.54 | e | 69.04 | b | 76.93 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.84 | i |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | 77.19 | e | 81.50 | 89.00 | c | ----- | z | ----- | z | 100.07 | a | 97.83 | f | ----- | z | ----- | z | ----- | z | 86.94 | h | |
1956 | 68.65 | k | 66.68 | a | 81.77 | 84.28 | a | 97.27 | a | 106.00 | 104.84 | 102.55 | 101.80 | 87.39 | 77.07 | 69.81 | 89.04 | a | ||||||||
1957 | 64.71 | 76.21 | 76.58 | 82.80 | 88.77 | 104.50 | 107.90 | 102.97 | 100.77 | 83.61 | 70.47 | 70.74 | 85.84 | |||||||||||||
1958 | 69.10 | 71.43 | 70.13 | 83.57 | 99.55 | 104.10 | 107.55 | 104.26 | 99.37 | 88.61 | 78.07 | 74.87 | 87.55 | |||||||||||||
1959 | 70.97 | 68.86 | 80.06 | 89.47 | 92.35 | 106.53 | 108.42 | 101.32 | 98.23 | 88.94 | 76.73 | 65.97 | 87.32 | |||||||||||||
1960 | 62.06 | 65.97 | 81.58 | 87.40 | 94.65 | 107.97 | 107.97 | 104.10 | 103.00 | 86.13 | 78.73 | 68.42 | 87.33 | |||||||||||||
1961 | 71.06 | 73.68 | 76.84 | 87.43 | 93.71 | 106.83 | 108.68 | 108.87 | 99.13 | 87.81 | 72.60 | 65.39 | 87.67 | |||||||||||||
1962 | 65.42 | 68.64 | 71.90 | 91.23 | 92.13 | 102.73 | 106.32 | 109.00 | 100.57 | 90.48 | 79.87 | 71.26 | 87.46 | |||||||||||||
1963 | 64.74 | 76.93 | 76.87 | 82.07 | 97.45 | 99.90 | 107.94 | 102.06 | 101.37 | 91.90 | 75.27 | 70.48 | 87.25 | |||||||||||||
1964 | 64.48 | 67.62 | 73.03 | 83.03 | 92.87 | 101.60 | 106.06 | 99.77 | 96.60 | ----- | z | ----- | z | ----- | z | 87.23 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 66.57 | 70.76 | 77.88 | 86.01 | 94.17 | 104.20 | 106.83 | 104.04 | 100.15 | 89.15 | 77.28 | 68.16 | 87.40 | |||||||||||||
S.D. | 4.26 | 3.60 | 4.66 | 4.16 | 4.27 | 2.50 | 2.61 | 2.73 | 3.26 | 3.59 | 4.37 | 3.92 | 1.97 | |||||||||||||
SKEW | -0.64 | 0.02 | 0.02 | 0.20 | -0.20 | 0.25 | -0.50 | 0.49 | -1.04 | 0.36 | -0.17 | -0.16 | 0.86 | |||||||||||||
MAX | 73.52 | 77.57 | 89.94 | 97.34 | 103.17 | 109.30 | 111.71 | 110.33 | 106.37 | 98.00 | 87.23 | 75.45 | 92.56 | |||||||||||||
MIN | 54.29 | 62.57 | 66.21 | 76.63 | 84.52 | 99.90 | 101.16 | 99.77 | 89.23 | 83.52 | 67.72 | 60.20 | 84.51 | |||||||||||||
YRS | 34 | 33 | 34 | 33 | 34 | 32 | 32 | 37 | 32 | 29 | 30 | 31 | 15 |