YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.30 | u | 78.21 | a | 68.65 | 73.43 | j | |
1942 | 69.68 | 70.56 | a | 79.55 | 85.68 | b | 94.07 | c | 102.33 | 111.84 | 107.17 | a | 104.20 | 91.10 | 80.17 | 73.77 | 89.18 | |||||||||
1943 | 72.65 | 77.00 | 82.31 | b | 92.13 | 99.00 | 100.30 | 109.87 | 104.71 | 104.00 | 91.19 | 80.23 | 67.52 | 90.08 | ||||||||||||
1944 | 70.00 | a | 69.04 | b | 78.04 | d | 84.77 | 94.90 | a | 100.17 | 107.87 | 109.68 | 101.97 | 92.77 | 72.00 | 69.13 | a | 87.53 | ||||||||
1945 | 67.10 | 72.43 | 72.87 | a | 87.23 | 93.10 | 101.83 | 108.90 | 106.00 | 103.14 | b | 92.65 | 77.43 | 66.94 | 87.47 | |||||||||||
1946 | 69.90 | 74.04 | 77.45 | 94.07 | a | 99.52 | d | 107.56 | e | 108.63 | a | 107.68 | c | 103.70 | 87.24 | f | 72.62 | a | 71.17 | a | 89.67 | a | ||||
1947 | 68.03 | b | 79.21 | ----- | z | 94.06 | l | 101.85 | d | 101.90 | 109.81 | 104.41 | b | 103.80 | j | 91.52 | d | 77.36 | e | 69.24 | b | 89.26 | c | |||
1948 | 71.93 | c | 75.96 | c | 76.14 | c | 91.50 | b | 96.24 | f | 102.66 | a | 109.42 | 108.40 | a | 103.27 | 91.97 | 76.76 | a | 67.77 | 88.71 | a | ||||
1949 | 57.16 | 70.14 | 75.59 | i | 91.50 | 94.84 | 104.23 | 107.52 | 107.65 | 106.25 | f | 89.57 | h | 84.87 | 68.58 | 87.39 | c | |||||||||
1950 | 68.10 | 78.07 | 83.00 | 91.53 | 94.19 | 104.20 | 104.97 | ----- | z | 100.80 | e | 97.13 | 84.87 | 75.89 | c | 89.34 | a | |||||||||
1951 | 70.23 | a | 70.82 | 79.42 | 86.17 | 95.52 | 102.03 | 108.52 | 104.52 | 105.27 | d | 91.45 | 77.30 | 65.65 | 88.07 | |||||||||||
1952 | 64.96 | e | 73.66 | 73.77 | 88.30 | g | 100.81 | 101.37 | 108.03 | 107.65 | 111.89 | u | ----- | z | ----- | z | 62.72 | f | 90.03 | e | ||||||
1953 | 71.48 | 75.11 | ----- | z | ----- | z | ----- | z | 104.17 | 108.52 | 107.17 | b | 105.38 | a | 92.13 | a | 80.24 | a | 68.05 | k | 93.03 | d | ||||
1954 | 69.06 | 81.57 | 78.77 | a | 92.90 | a | 97.62 | b | 101.97 | a | 109.20 | a | 105.73 | a | 103.13 | 92.84 | 82.77 | 68.52 | 90.34 | |||||||
1955 | 62.00 | 69.07 | 78.97 | a | 87.57 | 95.07 | a | 103.90 | a | 104.10 | ----- | z | ----- | z | 96.90 | 79.40 | 71.87 | a | 84.88 | b | ||||||
1956 | 72.71 | 70.45 | ----- | z | ----- | z | 99.26 | l | 106.47 | 107.45 | 109.81 | 108.23 | 88.71 | 77.43 | 75.00 | 90.70 | c | |||||||||
1957 | 67.39 | 77.52 | a | 80.77 | a | 86.23 | 90.87 | 107.17 | 110.37 | a | 105.77 | 103.62 | a | 85.48 | 72.23 | 71.48 | 88.24 | |||||||||
1958 | 70.83 | a | 74.29 | 72.45 | 86.83 | a | 100.53 | a | 103.92 | e | 109.14 | b | 107.37 | a | 103.31 | a | 93.37 | a | 77.67 | 75.70 | a | 89.62 | ||||
1959 | 72.24 | b | 71.11 | 83.29 | c | 92.25 | b | 93.70 | a | 106.62 | a | 110.21 | b | 105.71 | 100.15 | c | 92.26 | 77.32 | b | 66.29 | 89.26 | |||||
1960 | 63.29 | 69.38 | 84.47 | a | 90.73 | 96.93 | a | 108.72 | a | 109.70 | a | 106.84 | 103.03 | 89.26 | 76.60 | 67.16 | f | 90.81 | a | |||||||
1961 | 71.03 | a | 74.68 | 78.90 | 89.00 | 92.71 | 106.20 | 107.48 | 105.55 | 97.97 | 88.65 | 72.37 | 65.16 | 87.47 | ||||||||||||
1962 | 67.39 | 71.43 | 73.77 | 94.03 | 90.65 | 102.50 | 107.42 | 109.74 | 101.97 | 90.61 | 80.60 | 69.84 | 88.33 | |||||||||||||
1963 | 65.13 | a | 79.43 | 78.45 | 82.30 | 96.52 | 98.37 | 107.26 | 104.26 | 101.83 | 90.00 | 75.40 | 69.74 | 87.39 | ||||||||||||
1964 | 65.61 | 69.72 | 76.32 | 83.60 | 92.10 | 101.10 | 107.45 | 104.61 | 99.70 | 94.81 | 71.67 | 68.03 | 86.23 | |||||||||||||
1965 | 68.90 | 72.96 | 75.00 | 83.13 | 91.42 | 96.73 | 106.42 | 106.68 | 96.90 | 94.42 | 76.20 | 64.74 | 86.13 | |||||||||||||
1966 | ----- | z | 67.46 | 80.45 | 90.00 | 97.71 | 103.07 | 106.63 | a | 106.71 | 100.83 | 88.47 | a | 78.44 | e | 70.00 | d | 89.98 | a | |||||||
1967 | 69.54 | e | 75.43 | 79.58 | 76.80 | 93.06 | 99.57 | 107.77 | 107.13 | 97.60 | 93.27 | a | 80.10 | 62.65 | 86.87 | |||||||||||
1968 | 68.00 | 77.72 | 79.61 | 84.70 | 94.74 | 103.50 | 105.29 | 101.94 | 101.70 | 90.45 | 77.63 | 63.65 | 87.41 | |||||||||||||
1969 | 69.97 | 69.11 | 77.19 | 87.03 | 97.61 | 99.17 | 107.52 | 110.29 | 103.03 | 85.55 | 75.37 | 69.52 | 87.61 | |||||||||||||
1970 | 67.13 | 75.07 | 76.29 | 80.93 | 96.39 | 104.03 | 108.77 | 106.32 | 99.43 | 86.71 | 77.47 | 65.10 | 86.97 | |||||||||||||
1971 | 68.87 | 74.00 | 81.32 | 84.60 | 89.84 | 103.40 | 110.10 | 104.70 | a | 100.87 | 83.19 | 74.40 | 63.32 | 86.55 | ||||||||||||
1972 | 66.81 | 77.00 | 88.60 | a | 87.93 | 94.90 | 103.00 | 110.58 | 104.87 | 99.67 | 82.00 | 72.03 | 64.77 | 87.68 | ||||||||||||
1973 | 64.80 | a | 69.56 | a | 71.03 | 84.27 | 99.00 | 106.37 | 108.77 | 106.13 | 100.93 | 90.97 | 75.13 | 70.29 | 87.27 | |||||||||||
1974 | 64.84 | 72.21 | 79.94 | 86.03 | 95.16 | 109.73 | 106.35 | 106.71 | 101.80 | 89.68 | 76.40 | 64.84 | 87.81 | |||||||||||||
1975 | 69.40 | a | 70.89 | 74.61 | 77.07 | 92.77 | 103.27 | 107.87 | 107.97 | 100.93 | 87.90 | 76.30 | 69.61 | 86.55 | ||||||||||||
1976 | 70.48 | 72.59 | 76.13 | 82.27 | 95.97 | 103.37 | 105.35 | 104.65 | ----- | z | 87.74 | 78.47 | 67.73 | a | 85.89 | a | ||||||||||
1977 | 66.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.16 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 68.08 | 73.39 | 78.34 | 86.93 | 95.41 | 103.28 | 108.15 | 106.50 | 101.95 | 90.47 | 77.24 | 68.55 | 87.83 | |||||||||||||
S.D. | 3.28 | 3.55 | 3.82 | 4.53 | 3.08 | 2.88 | 1.72 | 1.86 | 2.44 | 3.49 | 3.34 | 3.46 | 1.17 | |||||||||||||
SKEW | -1.12 | 0.40 | 0.35 | -0.35 | 0.24 | 0.11 | -0.29 | 0.09 | 0.10 | -0.42 | 0.29 | 0.40 | 0.67 | |||||||||||||
MAX | 72.71 | 81.57 | 88.60 | 94.07 | 101.85 | 109.73 | 111.84 | 110.29 | 108.23 | 97.13 | 84.87 | 75.89 | 90.34 | |||||||||||||
MIN | 57.16 | 67.46 | 71.03 | 76.80 | 89.84 | 96.73 | 104.10 | 101.94 | 96.90 | 82.00 | 71.67 | 62.65 | 86.13 | |||||||||||||
YRS | 35 | 35 | 31 | 31 | 32 | 35 | 35 | 33 | 30 | 32 | 35 | 33 | 23 |