YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.65 | 40.00 | 31.00 | d | ----- | z | ----- | z | ----- | z | 37.22 | i | ||
1984 | 3.08 | r | 12.36 | g | 25.59 | b | 26.93 | 29.86 | c | 39.33 | 45.45 | 42.17 | a | 36.10 | 22.30 | h | 11.04 | f | 14.42 | g | 35.06 | e | ||||
1985 | 25.46 | c | 7.00 | a | 17.23 | 15.10 | a | 29.41 | d | 34.86 | a | 44.10 | 39.58 | 35.52 | a | 19.07 | b | -0.21 | k | 21.55 | t | 26.73 | b | |||
1986 | 17.50 | e | 10.67 | d | 11.82 | c | 19.52 | e | 31.85 | e | 40.17 | 43.32 | 41.53 | a | 36.07 | 32.09 | i | ----- | z | ----- | z | 28.05 | c | |||
1987 | 20.43 | a | 20.79 | 14.29 | 23.25 | n | 32.23 | 40.77 | 43.45 | 39.35 | 36.53 | 30.13 | 19.37 | c | 8.33 | j | 29.73 | b | ||||||||
1988 | 12.29 | c | 19.07 | a | 23.00 | b | 26.43 | 30.67 | d | 38.47 | 45.13 | 42.60 | a | 34.14 | b | 28.87 | a | 15.04 | c | 9.67 | d | 27.11 | ||||
1989 | -11.17 | h | 6.45 | f | 9.55 | k | 28.38 | v | 34.08 | f | 38.43 | 44.03 | b | 44.87 | a | 37.18 | h | 26.30 | a | 10.79 | a | 20.29 | c | 30.79 | f | |
1990 | 4.97 | b | -4.96 | b | 16.39 | c | 24.38 | d | 33.69 | e | 42.45 | a | 44.14 | b | 44.03 | b | 38.24 | a | 22.71 | 3.60 | 7.19 | 23.07 | ||||
1991 | 6.48 | 12.61 | 12.94 | 28.47 | 32.24 | b | 39.10 | 42.87 | a | 38.70 | d | 38.60 | 25.67 | a | 19.00 | 10.65 | 25.61 | |||||||||
1992 | 13.00 | 1.72 | 15.45 | 22.37 | 26.74 | 38.03 | 44.55 | 40.26 | 23.00 | d | 20.29 | 16.76 | a | 4.00 | a | 22.18 | ||||||||||
1993 | 4.72 | b | 14.08 | b | 21.23 | a | 28.93 | 32.93 | c | 38.00 | a | 44.29 | 43.11 | c | 37.18 | b | 30.32 | 17.21 | b | 14.69 | b | 27.22 | ||||
1994 | 13.76 | b | 2.00 | c | 15.62 | b | 27.52 | a | 34.50 | a | 40.23 | 43.35 | 43.71 | 34.00 | d | 26.71 | 8.97 | 11.57 | a | 25.16 | ||||||
1995 | 9.37 | a | 8.92 | b | 4.57 | a | 30.34 | a | 33.77 | a | 41.63 | 45.60 | a | 40.03 | 41.57 | 28.35 | e | 13.00 | c | 17.90 | b | 26.25 | ||||
1996 | -1.56 | d | 9.05 | h | 15.35 | k | 24.93 | 30.48 | 37.00 | b | 43.90 | 40.40 | a | 32.00 | b | 15.27 | a | 12.00 | e | 4.83 | b | 23.93 | b | |||
1997 | 5.92 | e | 27.96 | c | 10.57 | a | 22.68 | h | 33.38 | b | 39.70 | 46.33 | a | 42.00 | 36.93 | a | 19.13 | 19.97 | a | 5.35 | 26.11 | a | ||||
1998 | 11.69 | b | 21.37 | a | 24.81 | 27.31 | a | 31.41 | d | 39.93 | a | 43.29 | 40.00 | b | 33.00 | c | 22.90 | 19.11 | c | 8.03 | b | 26.90 | ||||
1999 | 3.46 | e | -4.69 | b | ----- | z | 25.00 | 29.95 | i | 38.74 | c | 45.26 | d | 43.27 | e | 36.53 | 28.67 | d | 15.52 | a | 4.43 | c | 23.62 | b | ||
2000 | 6.00 | d | 20.50 | c | 26.17 | a | 27.30 | g | 31.16 | 39.07 | b | 41.93 | a | 36.57 | a | 32.62 | a | 25.86 | b | 23.23 | d | 20.48 | f | 28.31 | b | |
2001 | 21.90 | b | 14.36 | 20.73 | a | 24.85 | d | ----- | z | ----- | z | ----- | z | 41.40 | f | 37.86 | h | 20.76 | b | 10.39 | b | 1.16 | f | 18.83 | f | |
2002 | 17.13 | p | ----- | z | 20.00 | w | ----- | z | 26.52 | j | ----- | z | 44.07 | b | 39.93 | d | 37.89 | b | 34.45 | 32.23 | 18.39 | c | 34.49 | f | ||
2003 | 18.03 | a | 27.52 | a | 14.11 | c | 26.38 | f | 30.32 | i | 40.65 | d | 44.78 | h | 39.71 | g | ----- | z | ----- | z | ----- | z | ----- | z | 25.08 | h |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.53 | a | 21.70 | c | 16.52 | 22.25 | i | |
2005 | 12.31 | b | ----- | z | ----- | z | ----- | z | 36.43 | h | ----- | z | ----- | z | ----- | z | ----- | z | 23.62 | g | 7.00 | e | 22.11 | d | 13.81 | i |
2006 | 4.58 | 14.52 | g | 14.43 | j | ----- | z | 33.40 | a | 40.93 | 45.26 | 44.29 | 38.48 | c | 30.75 | c | -1.46 | f | 11.11 | m | 33.96 | e | ||||
2007 | 8.50 | e | 10.57 | e | -4.05 | l | ----- | z | ----- | z | ----- | z | 47.13 | a | 43.93 | c | 39.64 | e | ----- | z | ----- | z | ----- | z | 29.95 | g |
2008 | ----- | z | ----- | z | 16.88 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.70 | a | 12.70 | c | 5.43 | a | 12.95 | i |
2009 | 1.32 | i | 7.00 | b | 11.88 | g | 21.12 | e | 33.21 | g | 38.62 | a | 43.96 | c | 39.74 | ----- | z | 32.04 | d | 13.31 | n | 7.44 | m | 30.41 | f | |
2010 | 9.05 | k | 18.46 | d | 15.50 | i | 22.62 | v | 30.06 | o | 39.38 | a | 41.55 | 39.57 | a | 34.63 | k | 25.55 | k | 18.89 | u | -1.20 | f | 34.74 | h | |
2011 | 6.62 | e | 4.57 | e | 2.67 | y | 22.40 | t | 31.46 | g | 38.00 | a | 40.63 | a | 39.93 | a | 37.42 | k | 25.60 | p | 3.44 | c | ----- | z | 22.20 | f |
2012 | ----- | z | 17.89 | a | 7.81 | 21.80 | o | ----- | z | 37.59 | a | 41.48 | b | 41.07 | c | 37.15 | j | 21.55 | 8.40 | 5.83 | a | 22.70 | d | |||
2013 | 19.58 | 19.36 | 13.45 | b | 11.18 | m | 27.00 | s | 38.43 | b | 43.39 | 42.26 | 35.91 | g | 31.70 | a | 14.88 | e | ----- | z | 27.88 | d | ||||
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 33.46 | e | ----- | z | 42.68 | 43.50 | a | 38.27 | o | 19.55 | i | 22.33 | x | ----- | z | 39.88 | i | |
2015 | 10.87 | p | 12.53 | k | 20.06 | n | ----- | z | ----- | z | 39.93 | 44.40 | a | 40.77 | a | ----- | z | 32.08 | r | ----- | z | ----- | z | 41.70 | i | |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 35.25 | o | 41.14 | b | ----- | z | 45.07 | a | ----- | z | ----- | z | ----- | z | ----- | z | 43.10 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 11.14 | 12.58 | 16.43 | 24.88 | 31.83 | 39.25 | 43.79 | 41.46 | 35.45 | 25.68 | 14.74 | 10.99 | 25.44 | |||||||||||||
S.D. | 7.00 | 9.28 | 6.12 | 4.00 | 1.98 | 1.60 | 1.59 | 2.10 | 3.98 | 5.06 | 6.75 | 6.13 | 1.90 | |||||||||||||
SKEW | 0.35 | -0.26 | 0.01 | -0.97 | -0.93 | -0.42 | -0.20 | -0.04 | -1.45 | -0.23 | 0.44 | 0.48 | -0.76 | |||||||||||||
MAX | 25.46 | 27.96 | 26.17 | 30.34 | 34.50 | 42.45 | 47.13 | 45.07 | 41.57 | 34.45 | 32.23 | 22.11 | 27.22 | |||||||||||||
MIN | -1.56 | -4.96 | 4.57 | 15.10 | 26.74 | 34.86 | 40.63 | 36.57 | 23.00 | 15.27 | 3.44 | 4.00 | 22.18 | |||||||||||||
YRS | 22 | 22 | 18 | 15 | 17 | 26 | 28 | 29 | 20 | 23 | 22 | 17 | 8 |