YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | 27.87 | 30.86 | 39.19 | 49.67 | 61.42 | 61.50 | x | 65.84 | 69.13 | 59.13 | 43.65 | 29.50 | 23.03 | 45.39 | a | |||||||||||
1979 | 24.90 | 18.43 | 36.97 | 47.07 | 61.26 | 64.08 | f | 68.39 | 67.00 | g | 61.00 | 46.87 | 35.03 | 16.65 | 41.66 | b | ||||||||||
1980 | 21.06 | 35.59 | 36.87 | a | 50.63 | 58.71 | 62.71 | i | 68.03 | 64.52 | f | 57.00 | 43.81 | 33.33 | 11.61 | 41.66 | b | |||||||||
1981 | 36.23 | 29.79 | 42.87 | 46.60 | 64.48 | 65.58 | f | 64.29 | 63.65 | 54.17 | l | 43.65 | 28.03 | ----- | z | 46.62 | c | |||||||||
1982 | 11.94 | 23.63 | a | 35.42 | 43.50 | 56.10 | 65.41 | h | 66.03 | b | 65.30 | k | 55.83 | 33.81 | ----- | z | 26.27 | a | 39.17 | c | ||||||
1983 | 21.48 | 29.07 | 39.10 | 49.47 | 60.71 | 67.56 | e | 67.65 | 64.08 | g | 51.73 | 40.70 | a | 32.13 | 25.65 | 44.11 | a | |||||||||
1984 | 23.60 | a | 26.04 | a | 44.68 | 48.40 | e | 59.72 | b | 65.93 | c | 65.00 | 64.58 | 60.83 | 44.35 | 25.40 | 24.39 | 46.08 | ||||||||
1985 | 34.74 | 20.14 | 36.87 | 39.84 | e | 57.68 | 64.76 | e | 70.61 | 63.97 | 56.13 | 39.13 | a | 19.97 | 31.97 | 44.65 | ||||||||||
1986 | 28.58 | 30.82 | 34.13 | 40.38 | d | 59.96 | c | 68.25 | b | 69.35 | 64.00 | a | 57.97 | 46.05 | l | 29.17 | a | 31.32 | 46.72 | a | ||||||
1987 | 28.00 | a | 32.61 | 38.39 | 50.88 | e | 59.42 | 63.92 | d | 67.61 | 68.50 | a | 55.05 | h | 44.81 | 31.10 | 22.93 | c | 46.20 | a | ||||||
1988 | 22.45 | 30.11 | a | 39.81 | e | 48.70 | 61.35 | 65.08 | f | 66.65 | 66.43 | h | 58.33 | 40.16 | 26.77 | 24.77 | 41.91 | b | ||||||||
1989 | 10.47 | a | 28.43 | 36.61 | 52.43 | 58.81 | 68.35 | d | 70.81 | 67.32 | 57.48 | i | 40.42 | 20.37 | 30.17 | a | 44.02 | a | ||||||||
1990 | 19.06 | 12.86 | 39.83 | b | 53.81 | d | 63.26 | ----- | z | 71.61 | 68.78 | d | 57.32 | h | 39.80 | a | 17.48 | a | 19.84 | 40.63 | b | |||||
1991 | 20.23 | 29.54 | 36.77 | 49.52 | c | 61.42 | 68.76 | a | 66.13 | 65.17 | a | 58.80 | 41.06 | 28.82 | b | 22.94 | 45.76 | |||||||||
1992 | 25.65 | 24.31 | 34.81 | 46.33 | 57.52 | 67.13 | 67.87 | 63.87 | 48.33 | 39.06 | 31.20 | 19.23 | 43.78 | |||||||||||||
1993 | 21.58 | 30.93 | 38.42 | e | 54.36 | h | 64.76 | b | 68.03 | 71.39 | 67.61 | 55.20 | 44.83 | a | 27.77 | 27.87 | 47.13 | a | ||||||||
1994 | 23.90 | 22.82 | 34.13 | a | 52.07 | 60.90 | 68.07 | 68.81 | 68.74 | 58.14 | a | 39.71 | 21.45 | a | 22.84 | 45.13 | ||||||||||
1995 | 21.59 | b | 28.29 | 30.48 | 52.30 | 61.77 | 67.60 | 67.65 | 66.39 | 61.37 | 45.42 | 28.52 | a | 21.50 | a | 46.07 | ||||||||||
1996 | 14.90 | 23.41 | 39.55 | 49.27 | 63.20 | a | 68.70 | 69.17 | b | 65.16 | 55.67 | 35.03 | 24.83 | a | 23.52 | 44.37 | ||||||||||
1997 | 17.94 | 35.54 | 35.00 | 51.00 | 61.77 | 69.59 | a | 71.39 | 67.03 | 60.47 | 38.23 | 31.53 | 25.71 | c | 47.10 | |||||||||||
1998 | 23.59 | d | 35.74 | a | 42.94 | 55.00 | a | 61.00 | a | 69.03 | a | 68.71 | 63.23 | e | 56.28 | a | 44.97 | a | 28.96 | b | 20.93 | a | 47.53 | |||
1999 | 16.65 | e | 18.07 | a | 36.83 | a | 48.03 | a | 59.18 | c | 68.40 | 67.58 | 65.26 | 56.43 | 41.57 | a | 26.43 | 21.48 | b | 43.83 | ||||||
2000 | 20.00 | 35.90 | 41.45 | 50.69 | a | 59.40 | a | 68.93 | a | 66.03 | a | 63.43 | c | 55.14 | a | 42.94 | 32.27 | 28.39 | 47.05 | |||||||
2001 | 32.26 | 33.26 | a | 37.71 | 49.43 | 56.72 | b | 68.93 | 64.20 | a | 66.45 | 60.10 | a | 37.84 | 29.07 | a | 17.52 | b | 46.12 | |||||||
2002 | 27.77 | 28.36 | 34.10 | 42.17 | 62.55 | 65.34 | a | 70.13 | 65.13 | 56.70 | 48.55 | 39.37 | 25.00 | b | 47.10 | |||||||||||
2003 | 27.68 | 34.25 | 36.33 | a | 51.93 | 59.61 | 65.55 | a | 71.10 | 65.35 | 57.47 | 50.90 | 24.69 | a | 23.53 | a | 47.37 | |||||||||
2004 | 17.84 | 34.93 | a | 35.60 | a | 51.21 | a | 64.23 | a | 69.83 | 72.58 | 73.65 | 54.13 | 42.97 | 30.13 | 26.35 | 47.79 | |||||||||
2005 | 23.58 | 29.43 | 41.39 | 53.60 | 64.65 | 68.57 | 69.87 | 67.13 | 57.13 | 44.35 | 23.77 | d | 30.65 | 47.84 | ||||||||||||
2006 | 18.10 | 29.89 | a | 34.27 | a | 47.17 | 62.39 | 64.73 | 66.65 | 60.97 | 58.87 | 43.42 | 22.00 | a | 25.27 | a | 44.48 | |||||||||
2007 | 20.45 | 26.86 | 25.50 | a | 51.87 | 59.87 | 67.47 | 65.19 | 67.00 | 57.03 | 42.93 | a | 34.40 | 23.19 | 45.15 | |||||||||||
2008 | 18.90 | 25.86 | 39.73 | a | 45.83 | 59.55 | 61.83 | 62.94 | 63.10 | a | 55.83 | 38.35 | 28.07 | 20.84 | 43.40 | |||||||||||
2009 | 19.84 | 25.59 | a | 35.35 | h | 47.80 | 64.23 | a | 65.17 | 70.97 | 63.87 | 58.33 | 48.10 | 25.53 | 21.84 | 46.48 | a | |||||||||
2010 | 26.77 | 34.11 | a | 36.74 | 49.03 | a | 62.68 | 63.48 | a | 64.61 | 64.74 | 59.83 | a | 45.52 | 31.30 | 20.55 | 46.61 | |||||||||
2011 | 25.52 | 26.07 | 35.94 | 49.07 | 61.45 | 64.07 | 66.68 | 62.87 | 57.63 | 45.03 | ----- | z | ----- | z | 49.43 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.80 | 28.28 | 37.22 | 48.93 | 60.93 | 66.96 | 67.99 | 65.73 | 57.23 | 42.48 | 28.07 | 23.68 | 45.86 | |||||||||||||
S.D. | 5.75 | 5.59 | 3.67 | 3.61 | 2.28 | 2.15 | 2.50 | 2.56 | 2.75 | 3.77 | 4.77 | 4.38 | 1.43 | |||||||||||||
SKEW | 0.22 | -0.73 | -0.68 | -0.86 | -0.11 | -0.69 | -0.03 | 0.91 | -1.12 | -0.15 | -0.13 | -0.28 | -0.22 | |||||||||||||
MAX | 36.23 | 35.90 | 44.68 | 55.00 | 64.76 | 69.83 | 72.58 | 73.65 | 61.37 | 50.90 | 39.37 | 31.97 | 47.84 | |||||||||||||
MIN | 10.47 | 12.86 | 25.50 | 39.84 | 56.10 | 61.83 | 62.94 | 60.97 | 48.33 | 33.81 | 17.48 | 11.61 | 43.40 | |||||||||||||
YRS | 34 | 34 | 33 | 33 | 34 | 27 | 34 | 29 | 30 | 33 | 32 | 32 | 20 |