YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1970 | ----- | z | 65.86 | 64.00 | 70.86 | a | 86.71 | 95.14 | b | 99.97 | 95.97 | 89.30 | 76.32 | 69.27 | 58.52 | 79.26 | a | |||||||||
1971 | 62.45 | 62.96 | 70.61 | 73.87 | 78.45 | 92.97 | 100.70 | a | 92.42 | 90.90 | 73.23 | 67.50 | 53.87 | 76.66 | ||||||||||||
1972 | 61.32 | 68.17 | 79.00 | 78.28 | a | 84.74 | 93.27 | 101.19 | 94.58 | 89.31 | a | 73.00 | 61.37 | 56.97 | 78.43 | |||||||||||
1973 | 56.26 | 59.00 | 57.13 | 71.77 | 87.32 | 96.33 | 99.10 | 98.16 | 91.47 | 82.77 | 67.20 | 63.71 | 77.52 | |||||||||||||
1974 | 57.94 | 63.61 | 68.32 | 76.30 | 86.23 | 100.30 | 96.65 | 95.84 | 91.43 | 79.29 | 67.40 | 56.84 | 78.34 | |||||||||||||
1975 | 60.71 | 61.25 | 63.65 | 67.43 | 84.52 | 93.03 | 98.03 | 97.55 | 92.17 | 80.19 | 69.67 | 62.48 | 77.56 | |||||||||||||
1976 | 64.00 | 63.69 | 65.35 | 72.77 | 85.26 | 94.97 | 97.10 | a | 96.29 | 86.33 | 76.94 | 71.23 | 63.58 | 78.13 | ||||||||||||
1977 | 58.10 | 68.21 | 64.35 | 78.13 | 77.71 | 96.83 | 99.29 | 96.81 | 90.63 | 81.90 | 72.47 | 64.81 | 79.10 | |||||||||||||
1978 | 57.39 | 59.86 | 69.24 | f | 72.53 | 85.45 | 98.37 | 101.16 | 97.39 | 90.90 | 85.52 | 65.17 | 56.35 | 79.10 | a | |||||||||||
1979 | 51.81 | 62.71 | 64.68 | 77.17 | 84.23 | 96.97 | 101.19 | 96.21 | b | 97.27 | 84.68 | 67.53 | 67.93 | b | 79.36 | |||||||||||
1980 | 59.33 | m | 64.83 | 63.80 | a | 76.20 | 79.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.18 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 58.89 | 63.65 | 66.09 | 74.12 | 83.68 | 95.82 | 99.44 | 96.12 | 90.97 | 79.38 | 67.88 | 60.51 | 78.14 | |||||||||||||
S.D. | 3.69 | 3.01 | 5.71 | 3.42 | 3.38 | 2.42 | 1.71 | 1.65 | 2.76 | 4.45 | 3.13 | 4.58 | 0.88 | |||||||||||||
SKEW | -0.47 | 0.11 | 0.94 | -0.44 | -0.84 | 0.39 | -0.45 | -1.06 | 0.79 | -0.14 | -0.59 | 0.11 | -0.20 | |||||||||||||
MAX | 64.00 | 68.21 | 79.00 | 78.28 | 87.32 | 100.30 | 101.19 | 98.16 | 97.27 | 85.52 | 72.47 | 67.93 | 79.36 | |||||||||||||
MIN | 51.81 | 59.00 | 57.13 | 67.43 | 77.71 | 92.97 | 96.65 | 92.42 | 86.33 | 73.00 | 61.37 | 53.87 | 76.66 | |||||||||||||
YRS | 9 | 11 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 8 |