| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.89 | 35.89 | ||
| 1961 | 40.16 | 45.36 | 47.34 | 51.48 | 58.68 | a | 71.38 | 77.87 | 80.81 | 61.48 | 51.55 | 36.41 | a | 37.06 | 54.97 | |||||||||||
| 1962 | 33.77 | 39.14 | 43.69 | 55.62 | 56.85 | 65.32 | 72.81 | 73.00 | 67.15 | 52.69 | 44.10 | 41.47 | b | 53.80 | ||||||||||||
| 1963 | 24.60 | 44.80 | 44.08 | f | 49.73 | 60.84 | 64.65 | 71.77 | 74.77 | 71.88 | b | 59.15 | k | 45.44 | e | 36.90 | 54.54 | |||||||||
| 1964 | 37.95 | 39.17 | 43.06 | 50.35 | 57.47 | 64.20 | 74.82 | 70.42 | 61.80 | 54.83 | k | 40.80 | b | 34.71 | 52.25 | |||||||||||
| 1965 | 36.50 | 40.89 | 39.36 | c | 53.21 | a | 56.60 | a | 65.35 | 74.40 | 72.90 | 58.77 | 63.57 | q | 49.75 | 39.61 | 53.39 | |||||||||
| 1966 | 40.56 | 40.52 | 46.58 | 53.79 | b | 63.58 | 65.20 | 75.16 | 76.06 | 69.87 | 52.81 | 43.47 | 39.03 | 55.55 | ||||||||||||
| 1967 | 41.53 | 42.54 | 43.37 | 47.62 | 58.37 | 65.95 | 76.85 | 78.92 | 72.20 | 54.31 | 41.72 | 33.66 | 54.75 | |||||||||||||
| 1968 | 36.19 | 43.29 | 47.25 | u | 49.69 | v | 57.81 | 66.62 | 76.31 | 71.37 | 64.40 | j | 52.78 | d | 44.40 | 38.25 | c | 54.11 | ||||||||
| 1969 | 34.66 | 40.09 | 44.58 | 51.48 | 59.53 | 68.53 | 73.48 | 77.10 | 64.67 | 54.16 | 45.82 | 38.24 | 54.36 | |||||||||||||
| 1970 | 39.48 | 43.98 | 43.92 | 46.62 | 59.58 | 70.22 | 76.60 | 77.29 | 58.98 | 50.08 | 43.85 | 37.27 | 53.99 | |||||||||||||
| 1971 | 38.48 | 41.00 | 42.87 | 49.95 | 59.27 | 63.22 | 74.68 | 79.92 | 61.23 | 57.10 | k | ----- | z | ----- | z | 56.74 | ||||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 36.72 | 41.89 | 43.86 | 50.98 | 58.96 | 66.42 | 74.98 | 75.69 | 64.80 | 52.62 | 43.58 | 37.46 | 54.57 | |||||||||||||
| S.D. | 4.71 | 2.22 | 2.30 | 2.75 | 1.99 | 2.57 | 1.84 | 3.48 | 5.15 | 1.47 | 3.50 | 2.22 | 0.65 | |||||||||||||
| SKEW | -1.58 | 0.27 | -0.34 | 0.05 | 1.04 | 0.82 | -0.14 | -0.04 | 0.32 | -0.51 | -0.39 | -0.01 | 0.15 | |||||||||||||
| MAX | 41.53 | 45.36 | 47.34 | 55.62 | 63.58 | 71.38 | 77.87 | 80.81 | 72.20 | 54.31 | 49.75 | 41.47 | 55.55 | |||||||||||||
| MIN | 24.60 | 39.14 | 39.36 | 46.62 | 56.60 | 63.22 | 71.77 | 70.42 | 58.77 | 50.08 | 36.41 | 33.66 | 53.80 | |||||||||||||
| NO YRS | 11 | 11 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 7 | 10 | 11 | 6 | |||||||||||||