| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.43 | j | 59.39 | 56.33 | 47.97 | 39.35 | 35.58 | 47.72 | ||||||
| 1963 | 23.47 | 40.64 | 37.76 | 39.98 | 48.55 | 53.80 | 57.10 | 60.89 | 61.18 | 49.19 | 39.72 | 31.87 | 45.35 | |||||||||||||
| 1964 | 32.15 | 33.72 | 35.34 | 39.23 | 46.16 | 54.62 | 62.16 | 58.19 | 53.68 | 46.74 | 34.12 | 29.45 | 43.80 | |||||||||||||
| 1965 | 32.02 | 36.95 | 34.81 | 44.05 | 46.87 | 54.47 | 62.55 | 61.73 | 49.65 | 53.32 | 40.85 | 30.60 | 45.65 | |||||||||||||
| 1966 | 32.84 | 32.70 | 37.66 | 41.48 | 50.19 | 53.68 | 59.77 | 61.82 | 57.07 | 47.58 | 39.77 | 34.58 | 45.76 | |||||||||||||
| 1967 | 34.82 | 37.62 | 34.65 | 37.40 | 48.44 | 57.58 | 63.26 | 67.13 | 59.95 | 49.02 | 37.18 | 30.05 | 46.42 | |||||||||||||
| 1968 | 31.63 | 36.69 | 40.71 | 41.03 | 48.63 | 56.38 | 64.19 | 59.95 | 55.77 | 46.06 | 36.83 | 28.11 | 45.50 | |||||||||||||
| 1969 | 22.79 | 29.93 | 36.76 | 41.97 | 51.85 | 59.02 | 59.65 | 58.15 | 55.08 | 42.00 | 38.30 | 32.42 | 43.99 | |||||||||||||
| 1970 | 31.44 | 35.36 | 36.18 | 37.47 | 49.18 | 60.15 | 64.84 | 62.32 | 51.18 | 44.83 | b | 37.75 | 30.32 | 45.08 | ||||||||||||
| 1971 | 33.77 | 33.84 | 33.29 | 42.13 | 49.44 | 58.20 | 64.08 | 66.35 | 50.67 | 43.03 | 37.47 | 29.39 | 45.14 | |||||||||||||
| 1972 | 27.66 | 34.83 | 41.50 | 39.35 | 50.29 | 56.98 | 61.95 | 63.84 | 52.57 | 43.48 | 38.70 | 23.79 | 44.58 | |||||||||||||
| 1973 | 26.82 | 34.61 | 36.98 | 41.38 | 50.89 | 56.90 | 63.85 | 61.81 | 55.57 | 46.77 | 34.37 | 35.66 | 45.47 | |||||||||||||
| 1974 | 25.03 | 35.88 | 38.13 | 42.18 | 46.13 | a | 60.03 | 61.84 | 63.05 | 57.02 | 47.95 | 39.53 | 33.03 | 45.82 | ||||||||||||
| 1975 | 31.58 | 31.48 | 33.79 | 37.12 | 49.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.68 | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 29.69 | 34.94 | 36.73 | 40.37 | 48.93 | 56.82 | 62.10 | 61.89 | 55.06 | 46.77 | 37.99 | 31.14 | 45.21 | |||||||||||||
| S.D. | 4.03 | 2.78 | 2.47 | 2.15 | 1.75 | 2.30 | 2.28 | 2.76 | 3.46 | 3.02 | 2.03 | 3.28 | 0.76 | |||||||||||||
| SKEW | -0.56 | 0.15 | 0.52 | -0.16 | -0.23 | 0.01 | -0.88 | 0.47 | 0.10 | 0.34 | -0.70 | -0.51 | -0.60 | |||||||||||||
| MAX | 34.82 | 40.64 | 41.50 | 44.05 | 51.85 | 60.15 | 64.84 | 67.13 | 61.18 | 53.32 | 40.85 | 35.66 | 46.42 | |||||||||||||
| MIN | 22.79 | 29.93 | 33.29 | 37.12 | 46.13 | 53.68 | 57.10 | 58.15 | 49.65 | 42.00 | 34.12 | 23.79 | 43.80 | |||||||||||||
| NO YRS | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | |||||||||||||