YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.48 | 42.13 | 26.48 | b | 42.03 | i | ||
1978 | 22.71 | 24.86 | 38.61 | 49.47 | 69.23 | 75.10 | 76.23 | 78.38 | b | 70.27 | 57.77 | 41.17 | 24.77 | 52.38 | ||||||||||||
1979 | 15.29 | 20.96 | 37.03 | 49.37 | 59.90 | 73.10 | 79.23 | 75.69 | b | 69.43 | 50.61 | 39.52 | a | 33.35 | 50.29 | |||||||||||
1980 | 24.73 | a | 25.28 | 36.16 | 53.23 | 69.97 | 73.13 | 79.13 | 76.06 | 65.80 | 51.71 | 40.63 | 26.16 | 51.83 | ||||||||||||
1981 | 27.19 | 31.25 | 41.65 | 55.47 | 65.48 | 73.83 | 79.16 | 77.81 | 66.07 | 53.06 | 47.33 | 29.00 | 53.94 | |||||||||||||
1982 | 18.13 | 25.68 | 35.87 | a | 49.07 | 71.07 | a | 69.30 | 80.58 | e | 72.58 | 66.50 | 57.90 | b | 38.17 | 31.94 | 51.40 | |||||||||
1983 | 28.57 | a | 33.50 | 38.06 | 46.83 | 60.93 | b | 77.07 | 83.90 | 82.59 | b | 70.52 | a | 55.55 | b | 40.97 | 18.26 | 53.06 | ||||||||
1984 | 24.41 | b | 37.43 | a | 33.58 | 56.07 | 64.52 | 76.77 | 78.38 | b | 79.60 | a | 65.77 | 61.21 | b | 41.80 | 28.87 | 54.03 | ||||||||
1985 | 21.72 | b | 24.96 | a | 42.27 | a | 55.50 | 67.70 | a | 72.45 | a | 77.28 | b | 74.45 | b | 67.11 | c | 58.65 | 33.07 | c | 19.90 | 51.25 | ||||
1986 | 26.39 | 27.00 | 42.48 | 57.33 | 70.45 | 75.47 | 79.93 | b | 75.33 | a | 66.14 | b | 56.52 | 36.03 | 32.65 | 53.81 | ||||||||||
1987 | 30.10 | 38.39 | 45.65 | 62.63 | 70.43 | a | 78.21 | b | 81.21 | b | 77.35 | 71.21 | a | 50.67 | a | 44.03 | 33.65 | 56.96 | ||||||||
1988 | 23.07 | a | 24.36 | a | 37.77 | 56.14 | a | 74.47 | a | 80.79 | a | 86.86 | b | 79.82 | c | 68.92 | f | 51.07 | c | 39.57 | 28.47 | a | 52.94 | a | ||
1989 | 31.65 | 23.29 | 34.41 | b | 51.03 | a | 67.74 | 71.62 | a | 82.96 | d | 79.07 | d | 72.52 | a | 59.52 | b | 34.45 | a | 19.28 | b | 52.29 | ||||
1990 | 34.03 | 33.43 | 44.48 | 56.62 | a | 61.68 | 73.63 | 78.16 | 77.93 | b | 68.16 | e | 54.45 | b | 45.23 | 28.50 | a | 54.69 | ||||||||
1991 | 21.55 | 34.78 | a | 41.23 | 57.90 | 69.39 | c | 78.30 | 78.08 | e | 80.14 | b | 65.41 | a | 54.19 | 36.50 | 31.03 | 54.04 | ||||||||
1992 | 28.61 | 32.00 | 37.58 | 47.87 | 70.50 | a | 70.93 | a | 70.97 | 73.93 | a | 70.00 | b | 55.61 | c | 36.86 | a | 29.23 | 52.01 | |||||||
1993 | 26.33 | a | 29.00 | 39.94 | 47.23 | 63.63 | a | 70.86 | b | 76.06 | 78.70 | a | 62.83 | a | 54.48 | 36.34 | a | 28.65 | 51.17 | |||||||
1994 | 13.33 | a | 23.14 | 41.19 | 50.03 | a | 66.48 | 75.80 | 77.23 | a | ----- | z | 70.07 | 61.33 | a | 45.97 | a | 35.50 | a | 50.92 | a | |||||
1995 | 26.35 | 26.64 | 40.65 | 45.10 | a | 64.71 | 78.75 | b | 79.70 | a | 82.65 | 67.73 | 55.61 | 31.86 | b | 25.77 | a | 52.13 | ||||||||
1996 | 20.68 | 25.62 | 32.23 | 45.66 | a | 61.97 | 75.83 | 73.13 | 78.55 | 67.13 | 57.90 | a | 33.59 | a | 26.55 | 49.90 | ||||||||||
1997 | 22.77 | 29.86 | 36.23 | 50.73 | 58.26 | 78.33 | 76.94 | 73.65 | 70.10 | a | 58.16 | 37.63 | 34.26 | 52.24 | ||||||||||||
1998 | 27.71 | 40.07 | a | 39.80 | a | 58.73 | 72.77 | 71.40 | 79.48 | 81.90 | 73.62 | a | 60.43 | a | 42.67 | 33.60 | a | 56.85 | ||||||||
1999 | ----- | z | 36.43 | 42.10 | 54.93 | 67.93 | a | 74.93 | 81.65 | 76.35 | 69.80 | 54.65 | 49.30 | 33.23 | 58.30 | a | ||||||||||
2000 | 26.41 | b | 36.83 | 47.57 | a | 50.67 | 68.00 | 72.37 | 78.10 | 78.58 | 69.47 | 62.77 | a | 41.20 | 20.77 | 54.39 | ||||||||||
2001 | 31.67 | a | 25.29 | 37.81 | 54.57 | 68.19 | 76.21 | a | 80.29 | 80.81 | 68.07 | 57.16 | 52.67 | 35.29 | 55.67 | |||||||||||
2002 | 31.13 | 35.68 | 32.84 | 49.75 | b | 60.55 | 76.57 | 83.39 | 77.35 | ----- | z | 49.00 | 37.80 | 32.39 | 51.49 | a | ||||||||||
2003 | 22.94 | 23.57 | ----- | z | 51.70 | 66.29 | 74.33 | 77.87 | 79.84 | 71.10 | 54.81 | 39.60 | 34.13 | 54.20 | a | |||||||||||
2004 | 18.19 | 35.00 | 40.68 | 52.21 | a | 61.84 | 71.77 | 77.10 | ----- | z | 77.00 | 57.97 | 44.33 | 27.87 | 51.27 | a | ||||||||||
2005 | 22.10 | a | 34.11 | 39.32 | 58.57 | 63.23 | a | 80.17 | 83.19 | 79.84 | 77.00 | a | 58.94 | 42.07 | 28.42 | 55.58 | ||||||||||
2006 | 34.29 | 28.86 | 42.16 | 60.73 | 65.07 | a | 76.90 | a | 83.90 | b | 79.10 | 68.37 | 53.00 | 44.43 | 34.77 | 55.96 | ||||||||||
2007 | 28.35 | 21.82 | 44.61 | 53.17 | 72.39 | 79.50 | 80.63 | a | 80.29 | 71.90 | 61.32 | 39.72 | a | 27.23 | a | 55.08 | ||||||||||
2008 | 25.77 | a | 27.10 | 37.19 | 52.13 | 60.61 | 74.03 | 78.73 | a | 79.84 | 72.57 | 57.10 | 40.47 | 22.42 | 52.33 | |||||||||||
2009 | 19.81 | 30.07 | 40.68 | 51.40 | 67.03 | 72.30 | 72.97 | 75.68 | 74.50 | 49.94 | 48.63 | 26.23 | 52.44 | |||||||||||||
2010 | 26.55 | 31.11 | 51.68 | 62.50 | 70.10 | 72.00 | 81.81 | 82.77 | 64.73 | 60.32 | 43.97 | 27.65 | 56.26 | |||||||||||||
2011 | 21.48 | 30.93 | 38.45 | 53.10 | 65.11 | c | 74.07 | 83.10 | b | 80.03 | 68.93 | 61.26 | 45.23 | 33.45 | 54.60 | |||||||||||
2012 | 30.81 | 35.38 | 55.18 | c | 55.21 | a | 71.13 | 78.22 | c | 83.57 | a | 79.58 | 69.43 | 53.35 | 42.43 | 32.58 | 57.24 | |||||||||
2013 | 27.39 | 27.86 | 34.94 | 46.17 | a | 63.84 | 73.29 | b | 78.97 | 77.77 | 72.87 | 54.94 | 40.25 | b | 20.19 | 51.54 | ||||||||||
2014 | 18.17 | b | 20.64 | 33.03 | 47.47 | 65.14 | b | 76.03 | a | 76.46 | g | 74.56 | d | 70.83 | 54.79 | b | 40.75 | r | ----- | z | 51.19 | c | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.01 | 29.52 | 39.86 | 52.87 | 66.43 | 74.96 | 79.44 | 78.25 | 69.51 | 56.19 | 41.02 | 28.72 | 53.51 | |||||||||||||
S.D. | 5.06 | 5.36 | 4.98 | 4.64 | 4.07 | 2.89 | 3.34 | 2.64 | 3.27 | 3.57 | 4.65 | 4.89 | 2.06 | |||||||||||||
SKEW | -0.23 | 0.17 | 1.00 | 0.29 | -0.09 | 0.16 | -0.29 | -0.28 | 0.36 | -0.14 | 0.22 | -0.55 | 0.21 | |||||||||||||
MAX | 34.29 | 40.07 | 55.18 | 62.63 | 74.47 | 80.79 | 86.86 | 82.77 | 77.00 | 62.77 | 52.67 | 35.50 | 57.24 | |||||||||||||
MIN | 13.33 | 20.64 | 32.23 | 45.10 | 58.26 | 69.30 | 70.97 | 72.58 | 62.83 | 49.00 | 31.86 | 18.26 | 49.90 | |||||||||||||
YRS | 36 | 37 | 36 | 37 | 37 | 37 | 36 | 35 | 35 | 38 | 37 | 37 | 30 |