| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1953 | ----- | z | ----- | z | 35.09 | h | 39.92 | 42.45 | 48.00 | 60.76 | d | 57.67 | b | 56.93 | 44.08 | a | 39.33 | 32.10 | 46.81 | |||||||
| 1954 | 30.35 | 32.98 | a | 32.72 | a | 42.77 | 50.31 | 50.40 | 59.13 | d | 53.70 | a | 49.30 | 42.93 | c | 38.62 | a | 26.58 | e | 42.48 | ||||||
| 1955 | 21.81 | 25.33 | a | 31.66 | 35.00 | 45.93 | c | 54.74 | a | 55.53 | 59.11 | 52.59 | c | 46.40 | 33.53 | 29.13 | 40.90 | |||||||||
| 1956 | 29.32 | a | 25.27 | a | 32.68 | 42.38 | 49.89 | 51.78 | 60.89 | 56.77 | 51.98 | 42.39 | 35.52 | 31.00 | 42.49 | |||||||||||
| 1957 | 22.18 | 31.17 | a | 36.82 | a | 41.93 | 49.21 | b | 55.90 | 58.03 | 55.80 | a | 56.00 | 42.13 | 33.40 | a | 32.31 | 42.91 | ||||||||
| 1958 | 29.76 | 34.54 | 31.97 | 40.20 | 52.84 | 54.90 | 62.32 | 62.95 | 52.62 | 48.03 | 38.02 | 35.66 | 45.32 | |||||||||||||
| 1959 | 32.06 | 31.34 | 38.06 | 44.10 | 44.10 | 54.58 | 63.10 | 57.92 | l | 49.80 | e | 46.98 | 37.48 | 26.17 | e | 42.53 | ||||||||||
| 1960 | 28.23 | c | 28.50 | c | 37.06 | 40.65 | 45.63 | 56.60 | 64.77 | 56.47 | 56.25 | 45.94 | 34.32 | 29.56 | 43.67 | |||||||||||
| 1961 | 30.71 | b | 33.84 | 34.98 | 41.72 | 45.92 | a | 58.80 | 60.77 | 62.26 | 50.25 | 44.69 | 33.90 | 28.18 | 43.83 | |||||||||||
| 1962 | 20.87 | 28.44 | d | 33.81 | 44.32 | 44.06 | 52.08 | e | 61.41 | n | 56.66 | 55.57 | 44.88 | e | 38.72 | 32.00 | 41.04 | |||||||||
| 1963 | 28.44 | 38.23 | 36.10 | 36.20 | 50.65 | 51.35 | 55.67 | b | 54.57 | x | 56.53 | 45.73 | 36.05 | 31.93 | b | 42.44 | ||||||||||
| 1964 | 27.17 | a | 25.09 | 31.52 | ----- | z | 46.64 | c | 52.37 | 60.10 | 57.79 | 51.15 | 48.19 | 31.93 | 30.16 | 42.01 | ||||||||||
| 1965 | 30.29 | 31.80 | ----- | z | ----- | z | 48.30 | p | 54.17 | c | 59.84 | 59.02 | d | ----- | z | ----- | z | ----- | z | ----- | z | 47.02 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 27.60 | 30.54 | 34.31 | 40.83 | 47.30 | 53.51 | 60.08 | 58.02 | 53.25 | 45.20 | 35.90 | 30.40 | 43.08 | |||||||||||||
| S.D. | 3.83 | 4.13 | 2.40 | 2.96 | 3.20 | 2.88 | 2.75 | 2.72 | 2.85 | 2.06 | 2.49 | 2.68 | 1.38 | |||||||||||||
| SKEW | -0.81 | 0.14 | 0.26 | -0.84 | 0.20 | -0.07 | -0.21 | 0.51 | 0.02 | -0.08 | -0.05 | 0.10 | 0.05 | |||||||||||||
| MAX | 32.06 | 38.23 | 38.06 | 44.32 | 52.84 | 58.80 | 64.77 | 62.95 | 56.93 | 48.19 | 39.33 | 35.66 | 45.32 | |||||||||||||
| MIN | 20.87 | 25.09 | 31.52 | 35.00 | 42.45 | 48.00 | 55.53 | 53.70 | 49.30 | 42.13 | 31.93 | 26.17 | 40.90 | |||||||||||||
| NO YRS | 12 | 12 | 11 | 11 | 12 | 13 | 12 | 11 | 12 | 12 | 12 | 12 | 7 | |||||||||||||