| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1963 | 24.63 | 40.25 | 35.63 | 38.17 | 50.13 | 54.00 | 58.29 | 60.13 | 58.70 | 46.21 | 38.18 | 33.31 | 44.80 | |||||||||||||
| 1964 | 26.52 | 30.57 | 32.35 | 37.90 | 44.98 | 53.80 | 62.48 | 58.76 | 50.12 | 46.24 | 32.53 | 28.34 | 42.05 | |||||||||||||
| 1965 | ----- | z | 35.70 | 34.90 | 42.57 | 45.07 | a | 54.60 | 60.52 | 59.39 | 48.00 | 48.48 | 37.33 | 27.16 | 44.88 | |||||||||||
| 1966 | 27.58 | 29.05 | 37.47 | 42.05 | 51.37 | 53.70 | 59.71 | 60.77 | 56.75 | 45.03 | 37.40 | 30.40 | 44.27 | |||||||||||||
| 1967 | 31.37 | 35.61 | 33.69 | 34.50 | 47.02 | 55.45 | 63.79 | 64.63 | 58.10 | 45.56 | 37.83 | 26.50 | 44.50 | |||||||||||||
| 1968 | 27.50 | 38.62 | 38.60 | a | 38.23 | 47.18 | 56.18 | 64.65 | 58.92 | 52.82 | ----- | z | ----- | z | ----- | z | 46.97 | |||||||||
| 1969 | 26.32 | a | 24.41 | a | 32.70 | d | 40.40 | i | ----- | z | 57.09 | a | 61.31 | o | 60.02 | i | ----- | z | 39.15 | 35.57 | 31.24 | 35.21 | ||||
| 1970 | 30.48 | 35.04 | 34.05 | 33.74 | c | 48.69 | 59.60 | a | 63.66 | 62.58 | 47.30 | j | 42.90 | 35.50 | 25.27 | 42.87 | ||||||||||
| 1971 | ----- | z | ----- | z | 33.94 | 37.88 | ----- | z | ----- | z | 70.88 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.91 | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 27.77 | 33.65 | 34.82 | 38.13 | 47.78 | 55.55 | 61.87 | 60.74 | 54.08 | 44.80 | 36.34 | 28.89 | 43.91 | |||||||||||||
| S.D. | 2.38 | 5.27 | 2.10 | 3.11 | 2.43 | 2.03 | 2.39 | 2.16 | 4.45 | 3.00 | 1.98 | 2.87 | 1.26 | |||||||||||||
| SKEW | 0.41 | -0.51 | 0.67 | 0.08 | 0.22 | 0.98 | -0.31 | 0.86 | -0.27 | -0.88 | -1.02 | 0.28 | -1.06 | |||||||||||||
| MAX | 31.37 | 40.25 | 38.60 | 42.57 | 51.37 | 59.60 | 64.65 | 64.63 | 58.70 | 48.48 | 38.18 | 33.31 | 44.80 | |||||||||||||
| MIN | 24.63 | 24.41 | 32.35 | 33.74 | 44.98 | 53.70 | 58.29 | 58.76 | 48.00 | 39.15 | 32.53 | 25.27 | 42.05 | |||||||||||||
| NO YRS | 7 | 8 | 9 | 8 | 7 | 8 | 7 | 7 | 6 | 7 | 7 | 7 | 4 | |||||||||||||