YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | 54.68 | a | 61.80 | 71.50 | 70.48 | 62.87 | 56.23 | 46.47 | 34.52 | 57.32 | d | |||||||
1966 | 27.34 | 30.43 | 41.66 | 51.30 | 60.79 | 66.32 | 73.42 | 71.40 | 65.58 | 53.66 | 48.03 | 33.06 | 51.92 | |||||||||||||
1967 | 31.45 | 37.73 | 46.65 | 47.73 | 56.27 | 64.13 | 72.40 | 70.32 | 64.48 | 55.48 | 46.40 | 25.24 | 51.53 | |||||||||||||
1968 | 23.31 | 40.03 | 42.50 | 46.25 | 56.69 | 68.15 | 71.94 | 65.85 | a | 63.90 | a | 54.29 | b | 39.13 | 30.55 | 50.22 | ||||||||||
1969 | 38.37 | 34.18 | 36.74 | 49.34 | b | 57.92 | 66.05 | 73.36 | f | 73.00 | d | 65.45 | a | 49.70 | a | 39.87 | 37.56 | 49.83 | a | |||||||
1970 | 30.73 | 38.62 | 39.21 | 43.60 | a | 58.15 | 66.57 | 73.83 | b | 71.47 | 60.93 | 48.16 | 43.68 | 35.00 | 50.83 | |||||||||||
1971 | 32.27 | 36.09 | 43.29 | 46.80 | 53.69 | 66.87 | 74.34 | 70.27 | 62.95 | 47.79 | 40.38 | 31.15 | 50.49 | |||||||||||||
1972 | 35.31 | 38.52 | 49.26 | 50.22 | 56.42 | 66.00 | 73.68 | 70.03 | 63.82 | 53.65 | 36.22 | 31.85 | a | 52.08 | ||||||||||||
1973 | 27.82 | a | 34.39 | 37.00 | 44.95 | 57.37 | 65.33 | 70.82 | 70.06 | 62.35 | 53.27 | 43.67 | 35.23 | 50.19 | ||||||||||||
1974 | 30.13 | 33.21 | 45.84 | 47.98 | 60.00 | 73.85 | 72.27 | 69.60 | 64.30 | 54.65 | 41.07 | 31.97 | b | 52.07 | ||||||||||||
1975 | 31.26 | b | 33.89 | 39.44 | 43.82 | 53.55 | c | 66.27 | 73.02 | 71.23 | 64.32 | b | 54.44 | 40.15 | j | 31.22 | b | 51.13 | a | |||||||
1976 | 32.18 | 39.10 | 39.08 | 48.98 | 58.60 | 67.70 | 71.65 | 69.40 | 62.40 | 50.74 | 41.12 | 32.10 | e | 51.09 | ||||||||||||
1977 | 28.90 | 36.36 | 38.34 | b | 49.03 | 53.58 | e | 68.93 | h | 72.11 | l | 72.57 | i | 65.82 | k | 55.40 | a | 44.57 | 41.15 | a | 43.42 | d | ||||
1978 | 36.17 | a | 36.30 | 43.67 | d | 50.31 | q | 55.45 | 69.05 | 73.66 | 70.56 | 63.95 | 57.65 | 41.43 | c | 27.69 | b | 52.33 | a | |||||||
1979 | 28.61 | 35.45 | f | 41.63 | a | 48.92 | 54.56 | 65.34 | a | 71.73 | 68.50 | a | 67.70 | 56.98 | 37.37 | 33.79 | 52.29 | a | ||||||||
1980 | 33.40 | 38.98 | 39.48 | 46.19 | a | 51.83 | a | 67.37 | 73.27 | 70.48 | 64.98 | 51.06 | 42.29 | a | 38.50 | 51.49 | ||||||||||
1981 | 37.31 | 38.04 | 40.02 | 51.65 | 57.18 | 70.53 | 73.03 | 71.35 | 63.98 | 52.24 | 45.45 | 37.94 | 53.23 | |||||||||||||
1982 | 31.96 | d | 36.91 | 42.12 | a | 49.98 | 56.48 | 64.67 | 71.06 | 70.23 | a | 64.47 | a | 49.77 | 41.05 | 33.29 | 51.00 | |||||||||
1983 | 32.26 | 38.14 | 41.94 | 43.57 | 56.02 | 64.45 | 71.81 | 70.32 | 67.93 | 54.02 | 41.50 | 38.03 | a | 51.67 | ||||||||||||
1984 | 32.43 | a | 34.98 | 43.27 | 47.20 | 62.97 | 66.62 | 71.92 | 69.69 | 65.30 | 47.79 | 42.27 | 33.71 | 51.51 | ||||||||||||
1985 | 31.98 | a | 34.70 | 41.87 | a | 51.70 | 57.79 | 68.55 | 73.44 | 70.37 | a | 60.65 | 53.10 | 41.75 | 33.77 | 51.64 | ||||||||||
1986 | 39.15 | 39.14 | 45.98 | 50.42 | 58.63 | 68.42 | 70.05 | 72.23 | a | 61.18 | 50.27 | 42.23 | 33.16 | 52.57 | ||||||||||||
1987 | 30.79 | 35.32 | 39.45 | i | 52.18 | 55.69 | 67.68 | 69.74 | 68.60 | 63.45 | 57.53 | 40.07 | 31.45 | 52.05 | a | |||||||||||
1988 | 30.47 | 38.95 | 42.21 | 49.12 | 57.06 | 67.73 | 73.60 | 70.37 | 61.60 | 58.71 | 42.37 | 31.63 | 51.98 | |||||||||||||
1989 | 30.16 | 37.04 | 46.90 | 56.34 | a | 60.90 | 67.78 | 74.73 | 69.69 | 65.53 | 52.79 | 41.95 | 33.74 | 53.13 | ||||||||||||
1990 | 31.95 | 33.80 | 44.23 | 51.42 | 56.30 | a | 70.75 | 73.13 | 68.79 | 65.85 | 53.77 | 41.35 | 26.18 | 51.46 | ||||||||||||
1991 | 31.31 | 39.12 | 38.26 | 47.50 | 55.37 | 62.13 | 70.92 | 71.52 | 65.17 | 56.45 | 40.33 | 31.73 | 50.82 | |||||||||||||
1992 | 24.10 | 37.79 | 42.82 | 54.25 | 58.24 | 65.28 | 71.32 | 69.05 | 64.47 | 56.00 | 36.32 | 27.47 | 50.59 | |||||||||||||
1993 | 35.92 | 37.91 | 44.15 | 50.53 | 60.02 | 64.93 | 70.97 | 70.19 | 63.38 | 52.58 | 39.08 | 32.97 | 51.89 | |||||||||||||
1994 | 34.89 | 35.39 | 44.90 | a | 50.55 | 56.71 | 70.98 | 74.05 | 73.89 | 65.66 | a | 52.15 | 39.52 | 36.03 | 52.89 | |||||||||||
1995 | 34.21 | 42.80 | 44.92 | 47.32 | 54.37 | 64.45 | a | 73.00 | a | 73.77 | 66.80 | 55.16 | 47.18 | 37.47 | 53.45 | |||||||||||
1996 | 36.90 | 43.36 | 43.10 | a | 52.15 | 63.53 | 70.77 | 74.97 | 73.11 | 62.19 | a | 53.26 | b | 42.90 | 37.35 | 54.47 | ||||||||||
1997 | 31.74 | 37.20 | 47.26 | 48.22 | 63.44 | 66.60 | 72.81 | 71.89 | 68.43 | a | 53.40 | a | 44.95 | 29.36 | b | 52.94 | ||||||||||
1998 | 37.89 | 36.34 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.11 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.20 | 37.02 | 42.51 | 49.01 | 57.28 | 66.97 | 72.52 | 70.55 | 64.25 | 53.40 | 41.94 | 33.21 | 51.81 | |||||||||||||
S.D. | 3.74 | 2.68 | 3.15 | 3.00 | 2.87 | 2.60 | 1.35 | 1.63 | 1.96 | 2.85 | 2.92 | 3.66 | 1.07 | |||||||||||||
SKEW | -0.23 | 0.08 | 0.03 | 0.10 | 0.54 | 0.41 | -0.18 | -0.16 | 0.16 | -0.31 | 0.14 | -0.12 | 0.53 | |||||||||||||
MAX | 39.15 | 43.36 | 49.26 | 56.34 | 63.53 | 73.85 | 74.97 | 73.89 | 68.43 | 58.71 | 48.03 | 41.15 | 54.47 | |||||||||||||
MIN | 23.31 | 30.43 | 36.74 | 43.57 | 51.83 | 61.80 | 69.74 | 65.85 | 60.65 | 47.79 | 36.22 | 25.24 | 50.19 | |||||||||||||
YRS | 33 | 32 | 31 | 31 | 33 | 32 | 31 | 32 | 32 | 33 | 32 | 33 | 26 |