YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | 39.02 | j | 44.91 | m | 58.47 | b | 61.02 | 71.05 | 67.89 | 63.77 | 55.63 | 40.85 | 31.74 | 56.30 | d | |||||||
1964 | 25.81 | 30.76 | 33.68 | 47.69 | n | 53.37 | 63.07 | a | 72.53 | a | 69.28 | d | 60.48 | 56.00 | 35.37 | 31.42 | 48.34 | a | ||||||||
1965 | 33.81 | 34.71 | 35.97 | 44.53 | 51.63 | 58.35 | 68.60 | 67.29 | 55.98 | 54.32 | 42.60 | 30.76 | 48.21 | |||||||||||||
1966 | 27.13 | 28.05 | 41.75 | a | 48.02 | b | 58.53 | 63.58 | 70.60 | 69.97 | 62.40 | 51.61 | 41.98 | 31.06 | 49.56 | |||||||||||
1967 | 29.21 | 35.25 | 42.98 | a | 41.13 | d | 56.88 | e | 61.08 | 71.69 | 70.53 | 61.63 | 54.26 | 42.65 | 24.71 | 49.34 | ||||||||||
1968 | 26.03 | 37.88 | 41.45 | a | 42.63 | o | 58.55 | u | 65.07 | 68.52 | 63.92 | a | 59.06 | d | 50.88 | f | 37.59 | a | 24.35 | e | 47.09 | c | ||||
1969 | 32.65 | a | 29.80 | a | 34.04 | c | 48.78 | e | 57.52 | d | 61.79 | f | 70.45 | c | 71.92 | g | 61.35 | j | 45.17 | h | 37.31 | d | 32.58 | a | 42.89 | d |
1970 | 30.19 | 37.39 | a | 38.13 | a | 41.15 | 56.56 | e | 64.83 | 71.55 | c | 71.08 | g | 56.98 | j | 45.98 | k | 39.08 | k | 25.46 | f | 48.54 | e | |||
1971 | 29.29 | c | 30.88 | d | 38.32 | 45.42 | f | 51.58 | e | 63.52 | c | 71.52 | a | 69.93 | a | 57.33 | f | 46.19 | e | 34.48 | j | 25.62 | c | 47.43 | c | |
1972 | 30.21 | e | 36.78 | f | 45.91 | i | 47.86 | b | 55.64 | c | 64.83 | d | 71.60 | b | 67.69 | d | 58.84 | h | 47.46 | f | 34.88 | i | 26.18 | c | 52.00 | e |
1973 | 20.17 | g | 31.69 | b | 35.25 | e | 44.15 | d | 55.34 | f | 62.71 | b | 69.18 | c | 68.90 | k | 58.58 | e | 51.32 | n | 39.82 | m | 30.24 | j | 50.26 | f |
1974 | 22.84 | f | 28.62 | h | 41.47 | o | 44.04 | b | 56.86 | i | 68.15 | g | 69.21 | b | 66.91 | d | 61.12 | j | 51.42 | m | 38.36 | l | 29.08 | l | 60.05 | i |
1975 | 28.20 | h | 32.33 | h | 37.26 | h | 39.23 | d | 50.02 | f | 59.15 | c | 69.36 | b | 67.14 | j | 61.61 | k | 48.11 | l | 36.89 | c | 33.10 | k | 51.16 | h |
1976 | 30.30 | i | 36.41 | b | 35.73 | e | 44.03 | a | 56.44 | g | 61.48 | g | 70.28 | b | 65.15 | g | 59.54 | d | 50.06 | m | 40.20 | j | 30.37 | h | 49.20 | g |
1977 | 27.62 | c | 37.19 | a | 35.35 | e | 48.38 | b | 51.27 | c | 66.82 | b | 70.50 | a | 68.54 | e | 61.82 | b | 51.93 | d | 41.90 | f | 37.38 | g | 51.94 | b |
1978 | 31.43 | a | 35.09 | f | 43.06 | f | 45.38 | i | 53.05 | b | 63.63 | d | 69.43 | c | 67.27 | 60.52 | f | 54.96 | c | 40.50 | i | 23.60 | e | 51.91 | e | |
1979 | 19.59 | h | 27.40 | h | 37.17 | a | 44.30 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.17 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.40 | 33.64 | 37.48 | 44.66 | 54.95 | 62.90 | 70.38 | 68.11 | 60.36 | 53.11 | 39.40 | 28.20 | 49.04 | |||||||||||||
S.D. | 2.61 | 3.49 | 3.11 | 3.28 | 2.84 | 2.43 | 1.22 | 1.87 | 2.35 | 3.22 | 2.92 | 3.59 | 0.72 | |||||||||||||
SKEW | 0.16 | -0.20 | 0.57 | -0.17 | -0.09 | -0.45 | 0.01 | -0.78 | -0.40 | -1.32 | -0.06 | -0.05 | -0.63 | |||||||||||||
MAX | 33.81 | 37.88 | 42.98 | 48.78 | 58.53 | 66.82 | 72.53 | 70.53 | 63.77 | 56.00 | 42.65 | 32.58 | 49.56 | |||||||||||||
MIN | 25.81 | 28.05 | 33.68 | 39.23 | 51.27 | 58.35 | 68.52 | 63.92 | 55.98 | 46.19 | 35.37 | 23.60 | 48.21 | |||||||||||||
YRS | 11 | 11 | 12 | 11 | 11 | 13 | 16 | 11 | 9 | 8 | 8 | 10 | 3 |