YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.36 | b | 14.58 | 23.97 | j | |
1984 | 20.97 | 23.52 | 28.71 | 35.55 | a | 48.93 | b | 57.77 | 60.77 | 61.14 | b | 50.97 | 39.61 | 31.17 | 25.42 | 40.38 | ||||||||||
1985 | 20.73 | a | 24.12 | c | 32.07 | b | 41.30 | 49.61 | c | 57.47 | 60.90 | b | 60.87 | 51.30 | 40.81 | 28.53 | 19.45 | 40.60 | ||||||||
1986 | 26.65 | 27.43 | 35.63 | a | 41.37 | 48.58 | 58.67 | 61.97 | 61.10 | 53.93 | 41.68 | 29.10 | 24.80 | a | 42.57 | |||||||||||
1987 | 21.55 | 29.67 | a | 29.52 | b | 38.40 | 49.87 | 57.27 | 60.65 | 60.19 | 51.53 | 40.59 | b | 30.33 | 22.00 | 40.96 | ||||||||||
1988 | 17.71 | 22.66 | 29.26 | 37.70 | 47.26 | 58.43 | 61.00 | 61.81 | 50.87 | 42.35 | 31.73 | 22.90 | 40.31 | |||||||||||||
1989 | 23.10 | a | 19.22 | a | 31.94 | 40.47 | 51.55 | 54.28 | a | 60.84 | 60.71 | 49.43 | 41.30 | a | 29.97 | 16.32 | 39.93 | |||||||||
1990 | 22.36 | c | 23.63 | a | 32.50 | e | 39.38 | a | 46.06 | 61.03 | 60.97 | 59.48 | 55.97 | 39.52 | 32.61 | b | 17.52 | 40.92 | ||||||||
1991 | 19.80 | a | 28.75 | 30.77 | 39.07 | 47.68 | 57.33 | 60.57 | a | 60.52 | 51.00 | c | 44.58 | 30.96 | g | 25.10 | 42.29 | a | ||||||||
1992 | 24.45 | 29.24 | 33.06 | 42.31 | a | 48.52 | 53.97 | 59.81 | 57.81 | 51.63 | c | 41.63 | a | 26.20 | 21.86 | i | 42.60 | a | ||||||||
1993 | 21.03 | 23.89 | 31.87 | 38.07 | 48.71 | 56.41 | c | 63.23 | 61.29 | 49.97 | 38.65 | 25.57 | 22.19 | 40.07 | ||||||||||||
1994 | 20.55 | 21.64 | 31.74 | 40.13 | 51.48 | d | 60.47 | 60.68 | 61.73 | a | 54.10 | 41.58 | 31.21 | b | 27.13 | 41.87 | ||||||||||
1995 | 25.23 | 29.07 | 31.45 | 36.30 | 46.90 | 55.97 | 62.48 | f | 63.26 | 53.79 | b | 40.19 | 31.43 | 26.00 | 39.96 | a | ||||||||||
1996 | 19.00 | 27.28 | 26.65 | 38.57 | 52.74 | 59.83 | 63.35 | 61.45 | 51.33 | 39.45 | 30.47 | 21.65 | 40.98 | |||||||||||||
1997 | 19.90 | 25.00 | 31.13 | 34.64 | e | 47.97 | 56.73 | 61.94 | 61.32 | 55.93 | 42.33 | a | 28.87 | 22.48 | 40.69 | |||||||||||
1998 | 25.29 | 28.96 | 28.48 | 36.47 | 49.45 | 56.83 | 64.48 | 60.52 | 57.87 | 45.06 | 34.20 | 23.61 | 42.60 | |||||||||||||
1999 | 25.26 | 28.61 | 30.20 | p | 38.75 | r | 46.90 | 56.13 | 62.61 | 62.06 | 53.43 | 42.11 | m | 34.50 | d | 24.58 | 43.79 | c | ||||||||
2000 | 24.32 | 29.83 | 34.32 | 41.70 | 52.39 | 59.10 | a | 63.77 | 64.13 | 55.03 | a | 44.55 | 26.77 | 20.06 | 43.00 | |||||||||||
2001 | 21.81 | 26.32 | 31.93 | c | 42.72 | a | 49.20 | a | 57.90 | 63.77 | 61.42 | 53.79 | b | 40.74 | 35.87 | 23.58 | 42.42 | |||||||||
2002 | 23.26 | 23.67 | a | 24.81 | d | 42.90 | 47.11 | c | 63.09 | h | 66.00 | p | 62.00 | r | 55.22 | l | 40.79 | g | 31.17 | g | 24.54 | e | 31.05 | f | ||
2003 | 26.46 | e | 24.21 | 32.47 | a | 40.78 | g | 51.35 | 56.14 | p | 63.43 | x | 64.00 | u | 52.54 | q | 40.20 | u | 31.25 | r | 21.42 | s | 33.62 | h | ||
2004 | 21.80 | p | 20.08 | p | 34.08 | s | 38.08 | r | 50.44 | v | 58.55 | s | 62.80 | u | 57.23 | r | 52.08 | r | 40.33 | s | 30.38 | q | 20.80 | u | ----- | z |
2005 | 20.38 | w | 29.33 | s | 30.43 | x | 39.33 | x | 46.71 | x | 56.17 | x | 62.11 | v | 61.17 | y | 54.50 | v | 41.00 | u | 30.17 | 22.00 | 26.08 | j | ||
2006 | 25.77 | 22.46 | 31.48 | 42.77 | 51.90 | 60.63 | 64.00 | 62.61 | 50.97 | 41.39 | 31.13 | 23.30 | a | 42.37 | ||||||||||||
2007 | 20.03 | 24.25 | 36.30 | a | 38.63 | 48.71 | 55.97 | 61.84 | 63.35 | 56.10 | 44.35 | 30.73 | 23.13 | 41.95 | ||||||||||||
2008 | 20.77 | 24.55 | 31.26 | 36.97 | 48.68 | 58.73 | 62.00 | 59.74 | 51.87 | 42.52 | 30.80 | 22.13 | 40.83 | |||||||||||||
2009 | 22.39 | 28.00 | 31.87 | 38.97 | 49.03 | 58.13 | 62.42 | 60.58 | 51.00 | 38.06 | 32.07 | 17.13 | 40.80 | |||||||||||||
2010 | 20.00 | a | 21.86 | 31.29 | 41.30 | 46.77 | 61.00 | 63.42 | 61.68 | 56.30 | 43.77 | 28.77 | 27.39 | 41.96 | ||||||||||||
2011 | 19.55 | 19.11 | 32.71 | ----- | z | 48.05 | j | 63.13 | o | ----- | z | 66.14 | c | 55.40 | 42.55 | 31.87 | 22.13 | 36.18 | d | |||||||
2012 | 26.58 | 25.79 | 36.19 | 45.10 | 52.45 | 61.07 | 64.39 | 62.32 | 54.33 | 41.42 | ----- | z | ----- | z | 46.96 | b | ||||||||||
2013 | 22.29 | ----- | z | ----- | z | 34.63 | 48.00 | 61.37 | 63.42 | 62.00 | 57.83 | 39.84 | 29.40 | 20.81 | 43.96 | b | ||||||||||
2014 | 20.55 | 23.46 | 29.29 | 38.47 | 48.16 | 57.93 | 62.61 | 61.48 | 56.03 | 44.42 | 28.80 | 26.29 | 41.46 | |||||||||||||
2015 | 24.45 | 26.93 | 35.35 | 40.10 | 48.61 | 59.40 | 63.90 | 61.19 | 58.73 | d | 46.45 | 30.63 | 25.81 | 43.46 | ||||||||||||
2016 | 23.90 | 27.90 | 32.97 | 39.53 | 46.06 | 59.70 | 64.10 | 61.03 | a | ----- | z | ----- | z | ----- | z | ----- | z | 44.40 | d | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.44 | 25.37 | 31.62 | 39.41 | 49.02 | 58.20 | 62.35 | 61.48 | 53.59 | 41.83 | 30.58 | 22.55 | 41.44 | |||||||||||||
S.D. | 2.50 | 3.03 | 2.63 | 2.63 | 1.93 | 2.02 | 1.41 | 1.52 | 2.63 | 2.12 | 2.37 | 3.22 | 1.03 | |||||||||||||
SKEW | 0.17 | -0.25 | -0.38 | 0.01 | 0.48 | -0.20 | -0.08 | 0.68 | 0.26 | 0.31 | -0.01 | -0.74 | 0.33 | |||||||||||||
MAX | 26.65 | 29.83 | 36.30 | 45.10 | 52.74 | 61.37 | 64.48 | 66.14 | 58.73 | 46.45 | 35.87 | 27.39 | 43.46 | |||||||||||||
MIN | 17.71 | 19.11 | 24.81 | 34.63 | 46.06 | 53.97 | 59.81 | 57.81 | 49.43 | 38.06 | 25.57 | 14.58 | 39.93 | |||||||||||||
YRS | 31 | 30 | 29 | 28 | 30 | 28 | 27 | 29 | 28 | 27 | 28 | 29 | 21 |