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 | 46.05 | 33.97 | 20.34 | b | 33.45 | i | ||
1978 | 13.48 | 11.75 | 24.50 | 39.70 | 55.10 | 61.43 | 65.00 | 66.27 | c | 59.95 | 47.00 | 31.85 | 17.08 | 41.09 | ||||||||||||
1979 | 6.34 | 7.68 | 26.40 | 38.03 | 48.34 | 59.92 | 66.06 | 64.29 | c | 58.02 | 42.89 | 32.31 | a | 24.91 | b | 39.60 | ||||||||||
1980 | 16.02 | a | 14.29 | 23.81 | 42.60 | 55.82 | 59.50 | 66.40 | 66.02 | 54.81 | a | 42.89 | 33.97 | 18.69 | 41.23 | |||||||||||
1981 | 17.16 | 22.00 | 30.82 | 43.97 | 50.95 | 62.30 | 66.76 | 66.11 | 54.82 | 44.37 | 38.78 | 22.65 | 43.39 | |||||||||||||
1982 | 7.08 | 14.76 | a | 25.43 | a | 37.83 | a | 58.19 | b | 56.20 | 68.04 | e | 61.34 | 56.70 | 48.60 | b | 30.48 | a | 26.23 | 40.91 | ||||||
1983 | 20.53 | b | 26.12 | 30.40 | a | 36.40 | a | 47.88 | b | 63.40 | 71.47 | 69.97 | b | 60.12 | a | 45.59 | b | 34.78 | 11.16 | 43.15 | ||||||
1984 | 13.62 | b | 28.25 | a | 20.85 | a | 43.67 | 51.05 | 64.28 | 65.40 | b | 68.05 | a | 54.55 | 50.86 | c | 34.67 | a | 19.29 | c | 42.88 | |||||
1985 | 13.40 | b | 12.50 | b | 32.75 | a | 44.82 | 55.28 | a | 59.34 | a | 63.95 | b | 62.89 | c | 56.85 | c | 47.89 | 27.25 | d | 13.25 | a | 40.85 | |||
1986 | 17.82 | 15.94 | a | 30.48 | a | 46.03 | 56.13 | 61.50 | 68.09 | b | 63.15 | a | 56.86 | b | 46.69 | 28.72 | 23.55 | b | 42.91 | |||||||
1987 | 22.44 | 27.41 | 35.71 | 47.73 | 56.67 | a | 64.38 | b | 69.12 | c | 66.07 | a | 58.77 | b | 42.19 | d | 36.10 | 27.34 | 46.16 | |||||||
1988 | 13.79 | b | 12.57 | a | 27.31 | 43.45 | a | 59.10 | a | 64.74 | a | 70.90 | b | 67.62 | c | 58.12 | f | 42.68 | c | 33.64 | a | 19.30 | c | 41.37 | a | |
1989 | 22.02 | a | 11.70 | 22.09 | b | 39.95 | a | 53.58 | 59.38 | a | 69.11 | d | 66.96 | d | 59.59 | b | 46.62 | b | 27.81 | a | 11.04 | d | 40.82 | |||
1990 | 24.32 | 20.05 | 32.37 | 44.41 | a | 48.53 | 61.59 | a | 65.42 | 65.14 | b | 56.82 | e | 44.12 | b | 36.38 | 20.17 | b | 43.28 | |||||||
1991 | 13.58 | 22.69 | a | 29.85 | 46.18 | 57.50 | c | 65.00 | 66.68 | f | 67.24 | b | 55.34 | a | 44.61 | 28.15 | 21.98 | 41.10 | a | |||||||
1992 | 20.24 | 22.88 | 26.52 | a | 38.68 | 56.42 | a | 57.76 | a | 60.02 | 60.95 | a | 58.70 | b | 46.36 | c | 31.62 | a | 22.58 | 41.89 | ||||||
1993 | 18.28 | a | 17.21 | 27.27 | 38.08 | 51.85 | a | 59.32 | b | 66.35 | 67.28 | a | 52.47 | a | 44.06 | 29.43 | b | 22.85 | 41.21 | |||||||
1994 | 4.57 | a | 10.50 | a | 30.31 | 39.41 | b | 52.85 | 62.87 | 65.45 | a | ----- | z | 60.08 | 51.15 | a | 37.22 | a | 27.48 | c | 40.17 | a | ||||
1995 | 20.44 | 18.59 | 31.56 | 35.78 | a | 52.47 | a | 65.95 | b | 67.88 | a | 70.45 | 56.32 | 47.60 | 25.94 | c | 18.60 | b | 42.63 | |||||||
1996 | 11.21 | b | 13.09 | 20.31 | 34.17 | a | 49.47 | 63.17 | 61.85 | 66.29 | 57.70 | 47.84 | b | 27.53 | a | 20.35 | 39.42 | |||||||||
1997 | 13.65 | a | 17.96 | 24.53 | 38.63 | 46.65 | 64.75 | 64.95 | 61.87 | 59.00 | a | 47.89 | 31.00 | 27.79 | 41.56 | |||||||||||
1998 | 20.80 | a | 31.76 | a | 31.09 | b | 45.48 | 57.37 | 60.98 | 66.55 | 68.76 | 61.50 | a | 50.45 | a | 36.57 | 24.80 | a | 46.34 | |||||||
1999 | ----- | z | 25.55 | 31.23 | 42.92 | 55.45 | a | 63.62 | 70.35 | 64.74 | 58.75 | 44.81 | 40.47 | a | 24.72 | a | 47.51 | a | ||||||||
2000 | 16.60 | b | 25.43 | 37.12 | a | 39.52 | 55.58 | a | 60.12 | 65.87 | 66.68 | 56.82 | 50.07 | b | 34.83 | 13.37 | 43.50 | |||||||||
2001 | 22.73 | a | 16.38 | 26.48 | 44.58 | 55.97 | 63.84 | a | 67.08 | 68.58 | 57.25 | 46.81 | 42.64 | a | 29.48 | a | 45.15 | |||||||||
2002 | 22.72 | a | 26.36 | 21.61 | 39.43 | b | 48.87 | 63.88 | 70.98 | 66.35 | ----- | z | 41.42 | 30.83 | 25.43 | a | 41.63 | a | ||||||||
2003 | 14.34 | 12.25 | ----- | z | 39.70 | 52.23 | 61.27 | 65.81 | 67.50 | 60.18 | 45.63 | 32.93 | 26.16 | 43.45 | a | |||||||||||
2004 | 11.65 | 22.88 | 31.42 | 41.12 | a | 49.63 | a | 59.40 | 64.74 | ----- | z | 64.55 | 48.76 | 35.92 | 19.27 | a | 40.85 | a | ||||||||
2005 | 13.30 | a | 24.02 | 26.21 | 46.07 | 51.80 | a | 67.87 | 69.52 | 67.87 | a | 64.40 | a | 50.15 | 34.33 | a | 22.48 | a | 44.83 | |||||||
2006 | 27.24 | b | 18.77 | 29.98 | 47.27 | b | 54.18 | a | 63.31 | a | 70.97 | b | 67.06 | 55.95 | 44.11 | 36.52 | a | 27.76 | 45.26 | |||||||
2007 | 20.89 | 12.31 | a | 33.60 | 40.80 | 59.18 | 65.72 | a | 67.20 | a | 67.87 | 60.97 | 51.92 | 33.19 | a | 20.13 | a | 44.48 | ||||||||
2008 | 17.87 | a | 15.02 | 24.15 | 40.40 | a | 48.58 | 61.77 | 67.68 | a | 65.19 | 60.73 | 47.68 | 34.35 | 15.15 | 41.55 | ||||||||||
2009 | 9.03 | 18.41 | 29.03 | 41.03 | 53.26 | 60.12 | 61.45 | 63.81 | 62.12 | 42.17 | a | 40.43 | 19.39 | 41.69 | ||||||||||||
2010 | 18.97 | 19.96 | 38.13 | 48.63 | 57.21 | 61.80 | 70.34 | 71.44 | 54.33 | 48.74 | 35.90 | 20.87 | 45.53 | |||||||||||||
2011 | 14.52 | 21.52 | 27.48 | 41.78 | 53.29 | c | 61.90 | 71.02 | b | 67.74 | 57.97 | 51.21 | 36.72 | 26.89 | 44.34 | |||||||||||
2012 | 22.34 | 26.21 | 44.21 | c | 43.12 | a | 58.03 | 65.06 | c | 71.15 | a | 66.71 | 56.72 | 44.85 | 34.45 | 26.29 | 46.59 | |||||||||
2013 | 19.55 | 17.61 | 24.29 | 36.29 | a | 52.03 | 60.64 | b | 66.82 | 66.42 | 60.98 | 46.82 | a | 33.50 | b | 12.55 | a | 41.46 | ||||||||
2014 | 8.91 | b | 8.88 | 19.94 | 36.62 | 52.90 | b | 64.34 | a | 65.04 | g | 64.61 | d | 58.63 | 46.55 | b | 34.38 | r | ----- | z | 40.15 | c | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.43 | 18.68 | 28.59 | 41.47 | 53.50 | 62.23 | 67.14 | 66.27 | 58.27 | 46.58 | 33.65 | 21.39 | 42.89 | |||||||||||||
S.D. | 5.42 | 6.10 | 5.31 | 3.70 | 3.47 | 2.52 | 2.88 | 2.41 | 2.76 | 2.82 | 3.90 | 5.00 | 2.03 | |||||||||||||
SKEW | -0.27 | 0.15 | 0.63 | 0.08 | -0.19 | -0.12 | -0.39 | -0.30 | 0.28 | 0.08 | 0.03 | -0.48 | 0.25 | |||||||||||||
MAX | 27.24 | 31.76 | 44.21 | 48.63 | 59.18 | 67.87 | 71.47 | 71.44 | 64.55 | 51.92 | 42.64 | 29.48 | 46.59 | |||||||||||||
MIN | 4.57 | 7.68 | 19.94 | 34.17 | 46.65 | 56.20 | 60.02 | 60.95 | 52.47 | 41.42 | 25.94 | 11.04 | 39.42 | |||||||||||||
YRS | 36 | 37 | 36 | 37 | 37 | 37 | 35 | 35 | 35 | 38 | 37 | 37 | 29 |