YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.72 | 47.23 | c | 36.69 | d | 27.88 | b | 41.13 | h | |
1960 | 22.57 | b | 27.09 | b | 37.78 | a | 40.92 | 45.17 | a | 60.91 | c | 68.60 | a | 61.98 | a | 59.46 | b | 44.94 | 33.54 | e | 30.77 | a | 44.48 | |||
1961 | 32.03 | 33.39 | a | 34.42 | a | 40.28 | 46.76 | 63.81 | a | 67.75 | c | 67.06 | d | 51.94 | f | 45.07 | a | 32.46 | d | 28.50 | a | 44.68 | a | |||
1962 | 20.54 | d | 28.19 | a | 30.10 | 45.95 | 45.47 | 59.39 | c | 64.43 | b | 61.94 | 58.79 | d | 46.82 | 37.72 | e | 34.50 | d | 44.49 | ||||||
1963 | 25.55 | b | 39.50 | 33.13 | a | 34.27 | b | 51.40 | e | 53.52 | 60.02 | b | 61.97 | b | 59.10 | 49.23 | c | 36.52 | c | 31.10 | 44.61 | |||||
1964 | 25.77 | a | 25.70 | a | 30.81 | b | 39.39 | b | 46.13 | e | 52.65 | c | 64.91 | b | 60.71 | c | 51.90 | e | 50.05 | 30.79 | b | 29.88 | b | 42.39 | ||
1965 | 27.63 | 31.57 | 35.08 | 42.37 | d | 45.92 | a | 56.00 | 62.83 | d | 60.21 | 50.26 | c | 49.65 | 37.81 | a | 28.77 | e | 44.01 | |||||||
1966 | 27.48 | 26.00 | 34.23 | 43.97 | 53.94 | d | 56.08 | 63.28 | d | 66.28 | a | 56.37 | 44.71 | c | 37.27 | 29.97 | b | 44.96 | ||||||||
1967 | 29.69 | b | 33.09 | a | 34.15 | d | 32.93 | a | 48.13 | d | 55.18 | 67.77 | a | 69.05 | a | 64.50 | n | 45.44 | 38.08 | 20.87 | d | 43.13 | a | |||
1968 | 26.29 | ----- | z | 37.47 | a | 39.27 | 47.44 | 57.92 | 68.63 | 58.48 | 54.48 | b | 45.55 | 34.47 | 29.06 | 45.37 | a | |||||||||
1969 | 28.71 | 25.93 | 29.37 | 41.29 | a | 52.65 | a | 59.37 | k | 65.76 | 64.88 | a | 57.50 | a | 39.97 | a | 36.95 | a | 31.29 | 43.12 | a | |||||
1970 | 28.98 | b | 36.12 | 34.03 | 35.10 | a | 49.09 | b | 59.08 | 66.12 | a | 64.95 | 51.54 | d | 42.63 | 37.33 | a | 23.37 | a | 44.03 | ||||||
1971 | 30.31 | 31.17 | a | 30.29 | 38.50 | 45.60 | 53.32 | 64.16 | 67.90 | 51.23 | 40.02 | 35.36 | b | 23.06 | 42.58 | |||||||||||
1972 | 24.27 | 30.84 | 39.42 | 38.63 | 51.03 | a | 59.57 | 66.21 | 65.21 | 52.67 | 44.74 | 31.73 | 23.74 | b | 44.01 | |||||||||||
1973 | 24.74 | 30.25 | 32.18 | 41.38 | 53.39 | 57.65 | 67.53 | 63.44 | 55.52 | a | 43.52 | a | 35.91 | h | 32.68 | 45.66 | a | |||||||||
1974 | 25.43 | d | 28.43 | 32.55 | b | 37.70 | 48.48 | 62.00 | 64.60 | 64.56 | g | 59.13 | 44.77 | a | 37.44 | m | 26.15 | a | 42.92 | b | ||||||
1975 | 25.93 | h | 26.42 | j | 29.38 | a | 31.69 | c | 43.52 | k | 50.55 | t | 66.33 | a | 61.02 | k | 57.68 | b | 40.42 | f | ----- | z | 27.59 | o | 46.27 | h |
1976 | 28.13 | a | 29.41 | 27.83 | b | 39.00 | p | 50.07 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.86 | h | |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.10 | j | 31.60 | 29.61 | h | 31.60 | k | |
1980 | 28.19 | 35.87 | b | 33.69 | m | 38.75 | 49.85 | g | 51.38 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.55 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.84 | 30.78 | 33.07 | 38.96 | 48.79 | 57.23 | 65.56 | 63.86 | 55.22 | 45.27 | 35.22 | 28.22 | 43.95 | |||||||||||||
S.D. | 2.89 | 4.03 | 3.25 | 3.80 | 2.97 | 3.64 | 2.33 | 3.12 | 3.30 | 2.95 | 2.57 | 3.82 | 0.89 | |||||||||||||
SKEW | -0.36 | 0.56 | 0.29 | -0.27 | 0.40 | 0.08 | -0.65 | 0.00 | -0.08 | -0.14 | -0.51 | -0.41 | -0.89 | |||||||||||||
MAX | 32.03 | 39.50 | 39.42 | 45.95 | 53.94 | 63.81 | 68.63 | 69.05 | 59.46 | 50.05 | 38.08 | 34.50 | 44.96 | |||||||||||||
MIN | 20.54 | 25.70 | 27.83 | 31.69 | 45.17 | 51.38 | 60.02 | 58.48 | 50.26 | 39.97 | 30.79 | 20.87 | 42.39 | |||||||||||||
YRS | 17 | 16 | 17 | 17 | 16 | 15 | 16 | 14 | 15 | 16 | 15 | 16 | 9 |