YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.77 | 27.03 | 29.90 | j | ||
1981 | 31.87 | 28.93 | 32.87 | 36.57 | 47.48 | 49.37 | 57.23 | 58.84 | 46.97 | 37.87 | 31.90 | 22.87 | 40.23 | |||||||||||||
1982 | 17.32 | 22.07 | a | 30.71 | 32.50 | 43.06 | 54.70 | 56.13 | 56.06 | 47.87 | 36.35 | 24.83 | 21.65 | 36.94 | ||||||||||||
1983 | 27.55 | 30.86 | 35.48 | 36.57 | 44.03 | 52.53 | 54.77 | 58.68 | 45.00 | 36.42 | 35.23 | 16.29 | 39.45 | |||||||||||||
1984 | 23.13 | 30.00 | 34.68 | 36.50 | 42.74 | 52.37 | 56.87 | 57.84 | 43.33 | 33.17 | a | 31.10 | 12.41 | b | 37.84 | |||||||||||
1985 | 18.35 | 12.82 | 26.87 | 37.83 | 47.61 | 53.13 | 61.03 | ----- | z | ----- | z | ----- | z | ----- | z | 18.64 | c | 34.54 | d | |||||||
1986 | 22.42 | 23.18 | 34.07 | a | 38.07 | a | 45.50 | c | 56.86 | a | 56.33 | a | 60.77 | 47.83 | 38.13 | 32.76 | a | 27.67 | a | 40.30 | ||||||
1987 | 23.68 | 29.46 | 35.19 | 42.27 | 48.42 | 55.14 | a | 58.74 | 56.48 | 49.33 | 37.48 | 33.23 | 24.63 | a | 41.17 | |||||||||||
1988 | 19.00 | b | 26.66 | 31.90 | 42.23 | 46.19 | 54.00 | 58.13 | 57.35 | 48.20 | 42.48 | 32.93 | 25.28 | b | 40.36 | |||||||||||
1989 | 24.90 | a | 17.93 | a | 31.00 | 40.87 | 46.13 | 56.50 | 58.26 | 57.00 | a | 48.03 | 38.97 | 33.23 | 27.84 | 40.05 | ||||||||||
1990 | 28.80 | a | 22.70 | a | 32.58 | 43.10 | 46.03 | ----- | z | ----- | z | ----- | z | 51.21 | a | 36.87 | 31.04 | c | 16.71 | c | 34.34 | c | ||||
1991 | 18.83 | b | 32.04 | 30.29 | 38.13 | 47.77 | ----- | z | 55.62 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.41 | g | ||||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.26 | 25.15 | 32.33 | 38.60 | 45.91 | 53.84 | 57.50 | 57.88 | 47.53 | 37.53 | 31.90 | 21.91 | 39.54 | |||||||||||||
S.D. | 4.73 | 6.02 | 2.56 | 3.21 | 1.93 | 2.32 | 1.81 | 1.52 | 2.29 | 2.48 | 2.76 | 5.23 | 1.43 | |||||||||||||
SKEW | 0.40 | -0.74 | -0.66 | -0.17 | -0.44 | -0.50 | 0.49 | 0.70 | -0.38 | 0.34 | -1.73 | -0.45 | -0.88 | |||||||||||||
MAX | 31.87 | 32.04 | 35.48 | 43.10 | 48.42 | 56.86 | 61.03 | 60.77 | 51.21 | 42.48 | 35.23 | 27.84 | 41.17 | |||||||||||||
MIN | 17.32 | 12.82 | 26.87 | 32.50 | 42.74 | 49.37 | 54.77 | 56.06 | 43.33 | 33.17 | 24.83 | 12.41 | 36.94 | |||||||||||||
YRS | 11 | 11 | 11 | 11 | 11 | 9 | 9 | 8 | 9 | 9 | 10 | 11 | 8 |