YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | 26.00 | 35.26 | 43.21 | a | 48.16 | 52.55 | a | 66.48 | 60.77 | 50.67 | 41.48 | 28.93 | 25.29 | 43.53 | a | |||||||||
1952 | 25.03 | 27.76 | 36.13 | 45.03 | 50.65 | 55.13 | 63.06 | 66.53 | a | 56.77 | 41.48 | 31.31 | a | 28.23 | 43.93 | |||||||||||
1953 | 29.87 | 27.14 | 33.13 | 42.77 | 47.10 | 55.03 | 70.39 | 62.90 | 52.07 | 41.39 | 33.27 | 23.83 | a | 43.24 | ||||||||||||
1954 | 26.10 | a | 32.21 | 34.06 | 45.13 | 54.29 | 57.87 | 68.94 | 62.35 | 56.67 | 43.03 | b | 36.53 | 25.37 | a | 45.21 | ||||||||||
1955 | 28.06 | 27.43 | 33.57 | a | 42.30 | 50.07 | a | 56.97 | 65.84 | 68.87 | 56.23 | 44.71 | 32.37 | 29.55 | 44.66 | |||||||||||
1956 | 30.10 | 25.10 | 32.77 | 43.13 | 53.48 | 58.07 | 66.71 | 58.74 | 57.13 | 42.30 | a | 25.60 | 22.90 | 43.00 | ||||||||||||
1957 | 27.90 | 36.71 | 38.00 | 45.33 | 50.48 | 62.76 | a | 65.10 | 65.45 | 54.63 | 45.71 | 32.53 | 25.80 | a | 45.87 | |||||||||||
1958 | 25.71 | 35.07 | 36.55 | 43.87 | 53.45 | 62.40 | 62.50 | a | 69.19 | 58.97 | a | 47.45 | 34.47 | 26.77 | 46.37 | |||||||||||
1959 | 27.52 | 31.79 | 37.35 | 45.10 | 52.41 | i | 66.19 | i | 70.77 | 63.39 | 55.00 | 42.48 | 30.63 | 29.50 | a | 43.35 | b | |||||||||
1960 | 26.16 | 29.03 | 39.65 | 48.10 | 49.81 | 62.33 | 64.87 | 62.90 | 56.87 | 44.23 | 34.70 | 26.00 | b | 45.39 | ||||||||||||
1961 | 21.27 | a | 31.39 | 35.29 | 43.40 | 50.06 | 62.00 | 68.32 | 67.74 | 51.00 | 41.81 | 30.62 | a | 24.16 | 43.92 | |||||||||||
1962 | 25.58 | 32.39 | 30.26 | 45.72 | a | 48.00 | 55.27 | 62.03 | 62.61 | 53.37 | 45.39 | 32.66 | a | 22.13 | 42.95 | |||||||||||
1963 | 20.16 | 35.68 | 31.93 | a | 38.67 | 51.13 | 57.56 | c | 60.47 | a | 66.43 | a | 57.97 | 48.19 | 35.72 | a | 20.65 | 43.71 | ||||||||
1964 | 19.50 | a | 22.67 | e | 32.13 | a | 43.63 | 50.77 | 59.14 | b | 67.43 | a | 67.73 | a | 55.03 | a | 48.20 | a | 30.00 | b | 26.79 | b | 43.59 | |||
1965 | 26.97 | a | 28.60 | c | 32.66 | b | 46.00 | a | 51.14 | b | 55.68 | b | 63.48 | 62.32 | 48.40 | 43.53 | a | 39.29 | b | 30.86 | c | 44.08 | ||||
1966 | 24.97 | b | 28.12 | b | 36.10 | a | 42.55 | a | 53.13 | 58.77 | 64.94 | 65.52 | 56.57 | 43.70 | a | 34.90 | 28.58 | 44.82 | ||||||||
1967 | 26.16 | 29.54 | 39.52 | 38.93 | 49.77 | 56.53 | 69.65 | 69.52 | 60.50 | 45.32 | 37.10 | 27.87 | 45.87 | |||||||||||||
1968 | 24.23 | 36.76 | 36.81 | 42.53 | 50.52 | 58.47 | 67.65 | 61.35 | 55.13 | 43.45 | 34.97 | a | 21.81 | 44.47 | ||||||||||||
1969 | 32.71 | 32.29 | 35.60 | a | 44.55 | a | 53.68 | 59.73 | 66.52 | 68.03 | 59.30 | 43.19 | 31.93 | 26.77 | 46.19 | |||||||||||
1970 | 24.42 | 33.71 | 37.65 | 39.43 | 51.83 | a | 60.27 | 68.00 | 68.45 | 51.03 | 40.77 | 34.00 | 26.55 | 44.68 | ||||||||||||
1971 | 24.06 | 28.82 | 33.03 | 43.60 | 48.06 | 58.03 | 67.32 | 71.35 | 53.77 | 40.68 | 31.96 | b | 27.74 | 44.04 | ||||||||||||
1972 | 23.53 | a | 28.07 | 41.50 | a | 45.37 | 52.72 | b | 60.50 | 62.00 | 64.53 | a | 56.13 | 47.23 | 33.55 | a | 24.35 | 44.96 | ||||||||
1973 | 24.48 | 34.61 | 37.42 | 46.10 | 55.52 | 61.69 | a | 66.94 | 64.58 | 53.03 | 43.65 | 34.13 | 27.03 | 45.76 | ||||||||||||
1974 | 26.90 | 28.68 | 41.52 | 42.73 | 54.55 | 60.31 | a | 67.61 | 62.35 | 58.93 | 48.19 | 33.90 | 26.13 | 45.98 | ||||||||||||
1975 | 24.97 | 28.57 | 36.97 | 42.60 | 50.68 | 60.90 | 68.42 | 62.81 | 58.70 | 45.26 | 32.63 | 29.19 | 45.14 | |||||||||||||
1976 | 26.03 | 36.93 | 36.06 | 42.97 | 54.77 | 59.97 | 68.84 | 61.55 | 60.83 | 45.58 | 34.45 | a | 21.97 | 45.83 | ||||||||||||
1977 | 26.70 | a | 32.11 | 34.26 | 45.17 | 49.94 | 62.53 | 68.74 | 68.10 | 58.97 | 47.13 | 35.23 | 33.71 | 46.88 | ||||||||||||
1978 | 35.13 | 36.64 | 42.94 | 45.90 | 51.94 | 63.30 | 66.58 | 65.42 | 56.87 | 49.06 | 35.93 | a | 25.37 | a | 47.92 | |||||||||||
1979 | 29.10 | 30.86 | 38.81 | 44.76 | a | 55.03 | 59.60 | 65.16 | 64.17 | a | 59.03 | 48.81 | 31.97 | 27.32 | 46.22 | |||||||||||
1980 | 34.87 | a | 37.82 | a | 39.16 | 44.77 | 51.29 | 59.83 | 68.16 | 67.35 | 57.33 | 44.10 | a | 33.41 | a | 30.90 | 47.42 | |||||||||
1981 | 32.13 | 31.93 | 40.74 | 50.53 | 56.84 | 66.03 | 70.90 | 66.68 | 60.90 | 45.71 | 38.53 | 30.26 | 49.27 | |||||||||||||
1982 | 30.20 | a | 34.64 | 40.00 | b | 45.68 | b | 55.43 | a | 59.97 | 66.65 | 68.80 | a | 59.80 | 42.39 | 34.03 | a | 31.16 | 47.40 | |||||||
1983 | 29.67 | a | 39.00 | 42.97 | a | 43.21 | a | 51.50 | a | 57.78 | c | 70.79 | b | 68.00 | 64.86 | a | 52.61 | 40.82 | b | 32.22 | h | 51.02 | a | |||
1984 | 30.33 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.33 | k |
1985 | ----- | z | 32.00 | 41.52 | 51.47 | 59.10 | 66.17 | 73.84 | 67.06 | 59.30 | j | 48.67 | a | 36.50 | b | 30.83 | a | 50.71 | b | |||||||
1986 | 33.35 | 39.14 | 46.61 | 50.32 | b | 59.21 | c | 68.43 | 69.65 | 73.35 | 58.40 | 46.73 | a | 40.50 | d | 30.57 | a | 51.36 | ||||||||
1987 | 30.00 | 36.71 | 40.16 | 49.80 | 60.15 | d | 66.70 | 66.80 | f | 69.84 | 59.90 | 52.00 | a | 41.29 | f | 30.16 | f | 51.70 | c | |||||||
1988 | 30.43 | j | 33.60 | i | 40.24 | b | 47.38 | f | 56.37 | d | 67.21 | a | ----- | z | 69.28 | b | 58.59 | c | 52.38 | g | 41.45 | j | 30.50 | g | 58.34 | g |
1989 | 27.84 | l | 32.65 | k | 45.19 | e | 54.58 | f | 59.12 | e | 66.81 | c | 73.70 | d | 67.96 | d | 59.41 | h | 48.43 | h | ----- | z | ----- | z | 62.56 | g |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.25 | 31.83 | 37.46 | 44.57 | 52.70 | 60.33 | 67.18 | 65.90 | 56.65 | 45.16 | 33.97 | 26.94 | 45.49 | |||||||||||||
S.D. | 3.77 | 4.18 | 3.86 | 2.91 | 3.37 | 3.81 | 3.10 | 3.27 | 3.44 | 3.04 | 3.14 | 3.13 | 1.85 | |||||||||||||
SKEW | 0.18 | -0.03 | 0.30 | 0.41 | 0.57 | 0.34 | -0.04 | -0.05 | -0.31 | 0.56 | 0.01 | -0.06 | 1.16 | |||||||||||||
MAX | 35.13 | 39.14 | 46.61 | 51.47 | 60.15 | 68.43 | 73.84 | 73.35 | 64.86 | 52.61 | 40.82 | 33.71 | 51.36 | |||||||||||||
MIN | 19.50 | 22.67 | 30.26 | 38.67 | 47.10 | 52.55 | 60.47 | 58.74 | 48.40 | 40.68 | 25.60 | 20.65 | 42.95 | |||||||||||||
YRS | 35 | 36 | 38 | 36 | 37 | 37 | 36 | 38 | 36 | 36 | 35 | 34 | 31 |