YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | 21.38 | j | 28.52 | a | 39.55 | b | 43.23 | 52.35 | 53.23 | 46.13 | 39.19 | 25.97 | 15.16 | 38.15 | c | |||||||
1964 | 9.71 | 16.86 | 19.35 | 31.00 | k | 37.23 | 45.62 | a | 55.10 | a | 52.74 | d | 42.63 | 35.77 | 20.57 | 18.42 | 32.18 | a | ||||||||
1965 | 21.55 | 20.57 | 21.55 | 31.90 | 36.23 | 41.97 | 52.06 | 49.74 | 39.03 | 34.55 | 28.40 | 17.71 | 32.94 | |||||||||||||
1966 | 13.48 | 15.36 | 25.03 | a | 29.82 | b | 41.26 | 44.63 | 53.58 | 52.77 | 45.57 | 35.26 | 26.83 | 18.39 | 33.50 | |||||||||||
1967 | 14.48 | 19.64 | 28.60 | a | 26.19 | d | 41.31 | e | 46.03 | 55.71 | 54.29 | 46.60 | 36.29 | 26.80 | 11.52 | 33.96 | ||||||||||
1968 | 11.00 | 24.59 | 25.90 | a | 25.20 | o | 39.60 | u | 45.80 | 51.03 | 48.67 | a | 39.92 | d | 32.15 | e | 22.52 | a | 9.04 | c | 31.06 | b | ||||
1969 | 21.47 | a | 19.04 | a | 19.93 | c | 30.96 | e | 38.74 | d | 44.92 | e | 51.89 | c | 55.36 | f | 43.71 | i | 30.88 | g | 21.58 | d | 18.53 | a | 29.67 | c |
1970 | 14.77 | 22.59 | a | 24.47 | a | 23.97 | 36.81 | d | 47.50 | 53.97 | b | 54.12 | g | 38.32 | h | 28.00 | g | 23.32 | h | 11.77 | e | 29.48 | d | |||
1971 | 15.21 | b | 16.56 | c | 22.06 | 28.56 | e | 35.00 | d | 43.57 | b | 51.87 | a | 54.23 | a | 38.67 | f | 30.11 | d | 20.30 | g | 15.07 | c | 31.22 | b | |
1972 | 15.92 | e | 19.62 | e | 26.96 | h | 29.89 | b | 35.50 | c | 48.11 | b | 52.66 | b | 50.38 | b | 43.14 | h | 37.26 | d | 22.09 | h | 12.79 | c | 33.57 | c |
1973 | 5.17 | g | 20.35 | b | 24.19 | e | 28.44 | c | 37.31 | e | 44.00 | a | 50.32 | c | 50.95 | j | 39.80 | e | 31.27 | i | 21.32 | k | 15.18 | i | 34.92 | e |
1974 | 8.85 | e | 11.09 | f | 24.89 | l | 26.24 | a | 36.14 | i | 46.57 | g | 52.83 | a | 48.59 | d | 41.43 | i | 35.79 | l | 22.95 | i | 14.70 | h | 34.13 | h |
1975 | 12.72 | f | 17.52 | g | 24.35 | e | 25.52 | c | 32.77 | e | 40.30 | c | 52.76 | b | 47.90 | j | 44.35 | j | 29.35 | h | 19.86 | b | 16.04 | h | 32.59 | f |
1976 | 13.16 | f | 22.67 | b | 20.29 | c | 27.10 | a | 38.65 | e | 41.61 | g | 53.00 | a | 46.00 | f | 43.52 | c | 29.22 | h | 21.33 | f | 9.78 | h | 34.20 | f |
1977 | 10.55 | b | 18.93 | a | 17.96 | d | 29.43 | b | 35.71 | c | 47.75 | b | 53.23 | a | 51.04 | e | 44.39 | b | 33.22 | d | 25.20 | e | 21.80 | f | 33.40 | a |
1978 | 19.53 | a | 24.04 | e | 29.12 | f | 32.25 | f | 35.76 | b | 43.31 | d | 49.25 | c | 47.52 | 41.68 | e | 35.96 | c | 28.29 | i | 9.42 | e | 34.05 | c | |
1979 | 6.54 | g | 12.35 | h | 24.47 | a | 27.27 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.47 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.71 | 20.06 | 22.93 | 28.20 | 37.27 | 44.77 | 52.60 | 51.20 | 42.93 | 34.98 | 24.19 | 14.35 | 33.46 | |||||||||||||
S.D. | 4.36 | 2.85 | 3.03 | 2.29 | 2.42 | 2.24 | 1.63 | 2.39 | 2.77 | 2.61 | 3.11 | 3.64 | 0.51 | |||||||||||||
SKEW | 0.33 | 0.03 | 0.04 | -0.21 | 0.17 | -0.23 | -0.08 | -0.11 | -0.08 | -0.35 | -0.15 | -0.15 | -0.12 | |||||||||||||
MAX | 21.55 | 24.59 | 28.60 | 31.90 | 41.31 | 48.11 | 55.71 | 54.29 | 46.60 | 39.19 | 28.40 | 18.53 | 33.96 | |||||||||||||
MIN | 8.85 | 15.36 | 17.96 | 23.97 | 32.77 | 40.30 | 49.25 | 47.52 | 39.03 | 30.11 | 19.86 | 9.04 | 32.94 | |||||||||||||
YRS | 12 | 13 | 13 | 13 | 14 | 14 | 16 | 11 | 10 | 10 | 9 | 11 | 3 |