YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | 49.29 | 59.33 | a | 67.41 | b | 70.20 | a | 59.98 | a | 47.85 | 30.72 | a | 16.88 | a | 50.21 | d | ||
1984 | 11.03 | 18.83 | b | 32.81 | e | 40.95 | b | 56.08 | a | 60.07 | 70.00 | b | 68.89 | 58.83 | a | 42.47 | 32.19 | a | 19.68 | a | 42.65 | |||||
1985 | 14.45 | b | 16.67 | a | 32.47 | a | 48.48 | 55.39 | 64.64 | b | 70.45 | c | 68.55 | b | 53.96 | b | 46.41 | b | 31.05 | b | 19.55 | 43.51 | ||||
1986 | 21.86 | b | 30.29 | b | 42.60 | a | 44.16 | b | 51.18 | c | 66.81 | c | 67.59 | b | 68.77 | e | 54.76 | a | 45.90 | 33.80 | c | 24.66 | 46.03 | |||
1987 | 19.42 | 28.36 | 32.65 | 49.21 | a | 53.60 | 63.55 | b | 65.84 | f | 64.42 | 59.90 | a | 49.94 | 33.17 | 21.87 | 43.28 | a | ||||||||
1988 | 17.11 | 25.24 | 32.47 | 46.13 | c | 53.89 | 66.72 | 71.98 | b | 69.02 | d | 57.32 | b | 53.73 | 31.98 | a | 20.58 | 45.51 | ||||||||
1989 | 16.35 | 17.79 | 38.32 | 48.25 | 54.13 | 61.66 | a | 72.91 | c | 66.25 | a | 59.73 | 47.31 | 35.07 | c | 24.90 | 45.22 | |||||||||
1990 | 24.10 | 25.85 | k | 37.68 | a | 49.13 | c | 51.85 | 62.69 | d | 68.35 | a | 66.77 | a | 63.50 | f | 47.72 | a | 33.48 | d | 14.04 | f | 49.09 | c | ||
1991 | 16.46 | e | 28.52 | f | 33.62 | e | 41.87 | c | 52.13 | d | 62.28 | g | 68.45 | a | 67.40 | a | 58.55 | a | 48.89 | 32.19 | c | 20.02 | c | 43.96 | b | |
1992 | 18.56 | 29.91 | 39.97 | 50.65 | c | 56.35 | 60.90 | 65.13 | 67.45 | 59.83 | d | 50.27 | 27.90 | 17.92 | 45.40 | |||||||||||
1993 | 19.55 | 20.16 | 34.61 | 42.92 | 53.98 | 58.50 | 64.83 | d | 63.79 | b | 57.50 | a | 45.19 | 27.78 | 23.63 | a | 42.70 | |||||||||
1994 | 27.52 | 25.21 | 39.55 | 46.43 | 57.15 | 65.95 | 71.84 | 70.15 | 60.75 | 44.60 | 27.58 | 23.85 | 46.71 | |||||||||||||
1995 | 23.31 | 33.66 | 38.60 | 42.83 | 47.76 | 57.63 | 65.90 | 68.66 | 59.70 | 46.13 | 37.88 | a | 28.79 | 45.90 | ||||||||||||
1996 | 23.65 | 28.03 | 37.39 | 44.67 | 54.19 | 64.37 | 70.73 | 70.05 | 57.17 | 45.45 | 34.02 | 25.02 | 46.23 | |||||||||||||
1997 | 21.85 | a | 23.73 | 35.47 | 39.82 | 54.27 | 63.28 | 67.87 | 66.68 | 59.00 | c | 46.53 | a | 32.18 | 20.28 | a | 44.25 | |||||||||
1998 | 26.94 | 27.77 | 34.82 | 42.53 | 51.87 | 56.82 | 71.71 | 68.58 | a | 62.57 | 47.55 | 34.55 | 22.21 | 45.66 | ||||||||||||
1999 | 27.79 | 29.46 | 40.13 | 41.38 | 50.22 | b | 60.26 | a | 69.35 | 65.68 | 56.45 | a | 48.82 | a | 38.28 | 24.68 | 46.04 | |||||||||
2000 | 27.94 | 30.38 | 36.71 | 48.62 | b | 57.17 | b | 63.08 | 71.45 | 71.71 | 58.13 | 46.26 | 24.97 | 24.45 | 46.74 | |||||||||||
2001 | 22.35 | a | 27.09 | 38.65 | 44.77 | 56.75 | c | 64.87 | 69.66 | 68.95 | b | 63.74 | a | 48.42 | 35.42 | 18.90 | 46.63 | |||||||||
2002 | 19.23 | 22.96 | 32.02 | b | 46.98 | c | 55.66 | b | 67.73 | b | 75.63 | 69.00 | a | 58.82 | 43.87 | 29.95 | 19.31 | 45.10 | ||||||||
2003 | 24.23 | 25.06 | a | 37.65 | a | 44.73 | 54.40 | 61.60 | a | 75.27 | 71.00 | 59.92 | 54.40 | a | 29.87 | 25.07 | c | 46.93 | ||||||||
2004 | 19.60 | a | 23.17 | 42.44 | 46.80 | 55.12 | a | 63.52 | a | 69.69 | 68.20 | d | 58.90 | 47.37 | 32.87 | 25.74 | 46.12 | |||||||||
2005 | 28.11 | 29.09 | 37.00 | 44.95 | 53.50 | 59.98 | 73.12 | b | 67.26 | 58.95 | 49.11 | 35.19 | a | 22.84 | 46.59 | |||||||||||
2006 | 25.53 | 28.18 | 33.98 | 47.00 | 57.13 | 67.86 | a | 74.02 | 67.91 | c | 55.70 | 44.69 | 34.78 | 22.40 | a | 46.60 | ||||||||||
2007 | 15.50 | 29.45 | 41.82 | 47.17 | 57.44 | 67.05 | 75.60 | 72.73 | 60.88 | a | 46.52 | i | 36.93 | 16.94 | 47.41 | a | ||||||||||
2008 | 14.26 | 21.57 | a | 30.44 | 39.68 | b | 50.77 | a | 67.34 | k | 72.48 | c | 70.05 | 58.97 | 48.42 | 38.02 | 22.11 | 42.43 | a | |||||||
2009 | 22.00 | 29.39 | 36.40 | 42.85 | 55.31 | 59.02 | 70.39 | 68.21 | 63.07 | 43.13 | 35.15 | 15.00 | l | 47.72 | a | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.10 | 25.89 | 36.55 | 45.11 | 53.95 | 62.72 | 70.45 | 68.38 | 58.96 | 47.32 | 32.85 | 22.09 | 45.53 | |||||||||||||
S.D. | 4.78 | 4.47 | 3.41 | 3.08 | 2.58 | 3.27 | 3.03 | 2.04 | 2.31 | 2.82 | 3.38 | 3.03 | 1.30 | |||||||||||||
SKEW | -0.19 | -0.54 | 0.09 | -0.10 | -0.61 | -0.04 | -0.04 | -0.20 | -0.07 | 0.70 | -0.40 | 0.04 | -1.12 | |||||||||||||
MAX | 28.11 | 33.66 | 42.60 | 50.65 | 57.44 | 67.86 | 75.63 | 72.73 | 63.74 | 54.40 | 38.28 | 28.79 | 46.93 | |||||||||||||
MIN | 11.03 | 16.67 | 30.44 | 39.68 | 47.76 | 56.82 | 64.83 | 63.79 | 53.96 | 42.47 | 24.97 | 16.88 | 42.65 | |||||||||||||
YRS | 26 | 24 | 26 | 26 | 27 | 25 | 26 | 27 | 26 | 26 | 27 | 25 | 20 |