YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.30 | e | 62.71 | 65.03 | 53.29 | b | 44.46 | c | 38.22 | a | 32.66 | b | 50.95 | e | ||
1987 | 26.68 | a | 32.13 | a | 33.79 | e | 46.74 | a | 50.79 | 59.73 | 61.77 | 62.88 | b | 56.55 | a | 51.48 | 36.71 | a | 28.52 | c | 45.65 | |||||
1988 | 29.00 | 34.10 | 37.71 | c | 42.72 | 50.37 | 60.78 | 65.88 | b | 63.77 | 55.24 | a | 52.62 | a | 36.40 | 27.69 | 46.36 | |||||||||
1989 | 26.53 | 34.15 | b | 41.06 | 48.92 | 52.61 | 58.88 | b | 66.98 | a | 62.37 | a | 58.38 | 47.83 | b | 39.23 | 31.34 | 47.36 | ||||||||
1990 | 26.82 | 26.46 | 37.56 | 45.85 | 49.08 | a | 61.14 | b | 64.93 | a | 61.47 | 59.79 | a | 47.35 | 38.86 | a | 26.58 | f | 47.21 | a | ||||||
1991 | 29.98 | 37.57 | 30.20 | a | 41.10 | 48.15 | d | 54.50 | e | 65.32 | a | 64.28 | a | 58.64 | b | 49.67 | a | 37.76 | a | 32.57 | a | 45.81 | ||||
1992 | 29.16 | 35.48 | a | 37.75 | a | 46.60 | 52.23 | e | 56.43 | a | 63.17 | d | 62.79 | c | 55.18 | b | 47.57 | b | 33.14 | b | 23.52 | 45.25 | ||||
1993 | 30.32 | 31.02 | c | 37.42 | 43.45 | 51.46 | d | 56.43 | b | 61.07 | b | 63.32 | c | 55.83 | 47.04 | c | 34.57 | b | 30.16 | 45.17 | ||||||
1994 | 32.29 | 27.84 | 38.87 | d | 42.73 | 49.48 | c | 61.67 | 64.79 | b | 67.13 | a | 56.57 | c | 40.56 | 28.97 | 29.50 | a | 45.03 | |||||||
1995 | 24.38 | a | 34.79 | 33.95 | b | 36.35 | 43.00 | c | 51.77 | 59.20 | a | 62.56 | f | 55.23 | b | 44.76 | 39.20 | 33.24 | 41.44 | a | ||||||
1996 | 30.42 | a | 37.18 | a | 37.47 | 45.10 | 53.43 | a | 61.55 | 68.63 | 65.42 | a | 55.83 | 46.08 | a | 37.75 | 32.63 | 47.62 | ||||||||
1997 | 29.94 | d | 32.19 | a | 38.77 | a | 41.58 | 54.37 | a | 56.98 | c | 64.15 | e | 64.82 | 61.07 | 46.45 | b | 38.32 | b | 29.32 | a | 46.50 | ||||
1998 | 32.00 | 27.55 | 34.76 | 37.11 | g | 47.03 | 54.38 | a | 65.27 | i | 66.21 | b | 58.90 | 46.05 | 37.32 | 32.00 | j | 44.91 | c | |||||||
1999 | 32.97 | a | 34.24 | a | 37.89 | 37.17 | a | 49.16 | 59.19 | d | 64.53 | a | 63.92 | a | 56.95 | a | 48.85 | a | 42.28 | 31.60 | f | 47.92 | a | |||
2000 | 31.48 | 36.41 | f | 36.33 | b | 45.95 | a | 54.75 | a | 61.45 | b | 65.60 | 65.73 | g | 59.57 | b | 47.53 | a | 30.65 | c | 34.26 | d | 46.76 | b | ||
2001 | 27.90 | 28.89 | 38.56 | 43.20 | b | 55.04 | c | 60.73 | d | 65.75 | e | 64.39 | c | 59.71 | b | 50.03 | b | 41.00 | d | 25.67 | h | 48.66 | a | |||
2002 | 31.17 | e | 33.00 | d | 36.72 | b | 46.38 | b | 50.37 | a | 61.31 | d | 67.59 | c | 63.86 | c | 57.28 | g | 45.68 | a | 39.23 | 28.07 | a | 45.76 | a | |
2003 | 37.31 | 33.21 | 34.67 | e | 40.28 | 52.85 | 59.17 | 68.73 | 66.44 | 59.80 | b | 53.16 | 36.66 | a | 31.82 | 47.84 | ||||||||||
2004 | 30.87 | 27.09 | a | 43.26 | 43.80 | 51.53 | 58.82 | 64.15 | a | 62.73 | 58.10 | 47.09 | c | 36.65 | c | 32.81 | b | 46.41 | ||||||||
2005 | 34.08 | a | 35.12 | 37.86 | b | 43.58 | 52.67 | a | 57.93 | a | 66.38 | a | 62.69 | e | 57.47 | 49.65 | 39.45 | 32.65 | 47.46 | |||||||
2006 | 31.65 | 35.00 | a | 33.85 | 45.26 | a | 55.03 | a | 62.93 | 68.48 | 63.47 | 55.73 | b | 46.85 | 39.91 | a | 30.93 | b | 47.43 | |||||||
2007 | 27.78 | a | 31.91 | a | 41.02 | 44.62 | 53.02 | 60.10 | 67.34 | 65.52 | 58.15 | 48.35 | 42.18 | b | 28.40 | 47.37 | ||||||||||
2008 | 25.95 | 29.89 | a | 37.33 | a | 44.02 | 47.75 | a | 59.26 | a | 66.11 | 65.81 | 57.88 | 48.66 | 42.35 | 29.85 | a | 46.24 | ||||||||
2009 | 33.23 | 31.24 | a | 38.25 | g | 42.32 | 55.15 | 56.95 | b | 67.21 | 63.29 | b | 59.62 | 45.21 | 40.82 | 25.21 | 47.29 | a | ||||||||
2010 | 29.65 | 30.98 | a | 34.72 | b | 41.78 | 47.58 | 58.40 | 67.58 | 64.40 | a | 59.60 | a | 50.27 | 35.92 | 35.26 | 46.35 | |||||||||
2011 | 28.98 | a | 28.25 | 39.21 | 44.88 | 47.77 | 57.57 | a | 66.45 | a | 67.82 | 60.55 | 48.58 | 36.73 | 27.98 | 46.23 | ||||||||||
2012 | 34.29 | 32.93 | a | 36.02 | 45.80 | 51.90 | a | 61.08 | 65.98 | d | 66.03 | 58.88 | 49.70 | a | 41.97 | l | 27.91 | b | 48.23 | a | ||||||
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 |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.19 | 32.09 | 37.07 | 43.61 | 51.02 | 58.87 | 65.40 | 64.39 | 57.79 | 47.84 | 37.70 | 30.27 | 46.47 | |||||||||||||
S.D. | 2.94 | 3.14 | 2.75 | 2.89 | 3.02 | 2.61 | 2.37 | 1.60 | 2.00 | 2.66 | 3.26 | 2.89 | 0.91 | |||||||||||||
SKEW | 0.21 | -0.19 | -0.16 | -0.79 | -0.60 | -0.87 | -0.81 | 0.32 | -0.36 | -0.29 | -0.91 | -0.42 | -0.05 | |||||||||||||
MAX | 37.31 | 37.57 | 43.26 | 48.92 | 55.15 | 62.93 | 68.73 | 67.82 | 61.07 | 53.16 | 42.35 | 35.26 | 47.84 | |||||||||||||
MIN | 24.38 | 26.46 | 30.20 | 36.35 | 43.00 | 51.77 | 59.20 | 61.47 | 53.29 | 40.56 | 28.97 | 23.52 | 45.03 | |||||||||||||
YRS | 26 | 25 | 25 | 25 | 26 | 27 | 26 | 25 | 26 | 27 | 26 | 23 | 17 |