YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.63 | 24.40 | 31.02 | j | ||
1973 | 27.23 | 36.04 | 39.16 | 45.88 | 58.57 | a | 64.82 | b | 72.37 | 69.02 | a | 58.57 | 49.65 | 40.22 | a | 35.58 | 49.76 | |||||||||
1974 | 28.81 | 36.09 | 39.95 | 45.95 | 54.32 | 68.93 | 71.10 | a | 69.67 | a | 62.98 | b | 49.71 | 38.42 | 33.98 | a | 49.99 | |||||||||
1975 | 28.67 | a | 35.34 | 38.90 | a | 40.54 | b | 54.06 | 62.88 | 74.76 | 65.74 | 61.47 | 50.35 | a | 34.75 | 35.13 | 48.55 | |||||||||
1976 | 31.58 | 35.70 | a | 34.97 | 45.38 | 58.47 | 61.66 | a | 72.71 | 63.65 | 61.17 | 47.37 | 38.87 | 26.50 | 48.17 | |||||||||||
1977 | 17.68 | 33.09 | 35.97 | 50.85 | 51.08 | 70.73 | 72.37 | 73.00 | 61.27 | 50.74 | 39.15 | 35.50 | 49.29 | |||||||||||||
1978 | 32.95 | 36.36 | 45.68 | 46.58 | 53.06 | 63.43 | 71.89 | 68.84 | 58.90 | 52.47 | 35.30 | 26.35 | 49.32 | |||||||||||||
1979 | 19.16 | 35.09 | 41.63 | 46.77 | 57.19 | 65.73 | 73.50 | 69.34 | 64.33 | 53.87 | 33.55 | 33.26 | 49.45 | |||||||||||||
1980 | 30.67 | a | 38.17 | 38.98 | 49.95 | a | 54.98 | 61.23 | 73.31 | 68.79 | 62.18 | 50.32 | 39.65 | 30.78 | b | 49.92 | ||||||||||
1981 | 31.21 | 35.81 | a | 41.35 | a | 49.09 | c | 52.16 | i | 64.81 | i | 72.19 | d | 73.63 | e | 64.54 | f | 46.72 | d | 39.70 | b | 36.60 | e | 47.37 | c | |
1982 | 28.22 | d | ----- | z | 42.20 | c | 47.04 | e | 54.54 | d | 64.83 | c | 70.61 | c | 72.88 | a | 59.78 | 48.47 | b | 31.27 | b | 30.83 | e | 50.06 | a | |
1983 | 34.77 | a | 39.40 | b | 41.97 | b | 42.88 | b | 55.59 | b | 61.09 | c | 68.66 | b | 72.36 | c | 60.56 | d | 51.48 | b | 39.80 | 27.37 | d | 49.66 | ||
1984 | 17.75 | a | 29.39 | f | 41.71 | b | 44.25 | b | 58.15 | e | 60.14 | a | 74.77 | e | 73.65 | 60.41 | h | 45.90 | f | 38.66 | h | 25.02 | j | 52.92 | e | |
1985 | 25.98 | b | 32.04 | c | 36.64 | b | 54.89 | g | 57.16 | l | 71.46 | e | 77.09 | h | 68.94 | o | 53.29 | p | 47.05 | i | 26.96 | f | 15.28 | d | 36.28 | g |
1986 | 30.23 | e | 40.77 | b | 45.86 | i | 48.05 | b | 57.12 | c | 70.57 | 70.26 | f | 77.68 | c | 53.95 | h | 50.24 | d | 39.93 | b | 27.61 | d | 49.13 | c | |
1987 | 28.05 | i | 36.27 | d | 41.75 | g | 53.46 | f | 58.70 | d | 67.95 | b | 69.04 | h | 71.05 | a | 64.88 | 54.53 | 38.38 | a | 30.38 | a | 52.77 | d | ||
1988 | 27.88 | a | 38.59 | 42.65 | 51.82 | 57.48 | a | 68.71 | a | 76.35 | 71.71 | 62.11 | c | 58.07 | b | 38.93 | 27.27 | 51.80 | ||||||||
1989 | 26.55 | 25.58 | b | 43.84 | 52.34 | a | 55.53 | a | 67.53 | a | 76.90 | 68.45 | a | 62.46 | c | 49.50 | a | 37.96 | b | 29.95 | a | 49.72 | ||||
1990 | 33.79 | 33.75 | 43.35 | 54.92 | 54.34 | b | 65.16 | b | 75.35 | a | 72.16 | 67.55 | b | 51.26 | 39.74 | a | 21.76 | 51.09 | ||||||||
1991 | 28.14 | c | 40.14 | 39.57 | a | 46.67 | a | 52.53 | 61.07 | 73.78 | a | 74.10 | b | 64.12 | a | 51.21 | e | 39.50 | b | 31.55 | 50.20 | |||||
1992 | 35.07 | b | 44.14 | a | 49.24 | ----- | z | 63.37 | 68.18 | 71.03 | 72.69 | 62.28 | 53.77 | a | 34.42 | 26.82 | a | 52.82 | a | |||||||
1993 | 21.22 | a | 26.34 | 41.60 | a | 47.41 | b | 60.68 | a | 60.90 | a | 64.47 | a | 67.23 | 63.12 | a | 50.95 | b | 32.08 | 32.34 | 47.36 | |||||
1994 | 34.87 | a | 32.17 | a | 46.24 | 51.05 | 60.03 | 67.60 | 76.55 | 74.82 | 65.34 | a | 50.90 | b | 32.60 | a | 27.53 | a | 51.64 | |||||||
1995 | 35.27 | 42.37 | a | 41.15 | 46.19 | c | 55.08 | 61.78 | 72.27 | 71.03 | a | 64.23 | 50.26 | 46.36 | a | 33.45 | 51.62 | |||||||||
1996 | 33.81 | 35.16 | 44.98 | 49.67 | a | 55.32 | 66.28 | a | 76.34 | 72.69 | 60.78 | 51.16 | b | 40.79 | a | 36.20 | a | 51.93 | ||||||||
1997 | 32.98 | 36.96 | 45.87 | ----- | z | 60.90 | 64.84 | b | 71.70 | a | 72.58 | 64.28 | a | 49.60 | b | 41.55 | 30.68 | 52.00 | a | |||||||
1998 | 38.95 | 37.07 | 43.47 | a | 47.25 | 54.27 | 61.07 | 76.77 | 74.77 | a | 67.05 | 49.73 | a | 42.09 | a | 30.31 | b | 51.90 | ||||||||
1999 | 35.25 | a | 36.62 | d | ----- | z | ----- | z | ----- | z | 66.32 | e | 71.06 | e | 71.48 | e | ----- | z | ----- | z | ----- | z | ----- | z | 56.15 | g |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.56 | 35.96 | 41.71 | 47.75 | 56.48 | 65.19 | 72.95 | 71.27 | 62.70 | 50.93 | 38.11 | 29.90 | 50.08 | |||||||||||||
S.D. | 5.66 | 4.19 | 3.41 | 3.29 | 2.97 | 3.46 | 2.88 | 3.07 | 2.38 | 2.38 | 3.49 | 4.88 | 1.35 | |||||||||||||
SKEW | -0.73 | -0.64 | 0.01 | 0.07 | 0.42 | 0.16 | -0.85 | -0.47 | 0.23 | 1.04 | -0.19 | -0.98 | -0.14 | |||||||||||||
MAX | 38.95 | 44.14 | 49.24 | 54.92 | 63.37 | 71.46 | 76.90 | 77.68 | 67.55 | 58.07 | 46.36 | 36.60 | 51.93 | |||||||||||||
MIN | 17.68 | 25.58 | 34.97 | 40.54 | 51.08 | 60.14 | 64.47 | 63.65 | 58.57 | 46.72 | 31.27 | 15.28 | 47.36 | |||||||||||||
YRS | 26 | 25 | 24 | 22 | 24 | 26 | 24 | 26 | 22 | 24 | 25 | 26 | 18 |