YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1990 | ----- | z | 49.00 | 60.68 | 68.83 | a | 74.16 | b | 83.66 | a | 90.07 | a | 86.73 | 81.21 | b | 68.85 | 54.91 | b | 40.03 | 68.92 | a | |||||
1991 | 45.73 | c | ----- | z | 53.15 | ----- | z | 70.21 | 80.31 | c | 89.95 | a | 87.35 | a | 81.65 | ----- | z | ----- | z | 47.39 | 69.47 | d | ||||
1992 | 45.93 | a | 54.72 | b | 57.71 | 69.57 | 77.27 | 82.67 | a | 87.85 | 89.58 | a | 82.33 | a | 71.37 | a | 52.76 | a | 43.74 | b | 67.96 | |||||
1993 | 45.68 | a | 50.11 | a | 60.68 | c | 67.07 | a | 76.10 | a | 82.03 | 88.05 | a | 88.24 | f | 79.93 | c | 69.02 | a | 51.59 | a | 46.69 | b | 65.18 | a | |
1994 | 49.68 | 47.48 | d | 62.00 | a | 66.83 | c | 75.36 | b | 88.78 | a | 91.88 | a | 91.82 | a | 81.90 | e | 66.07 | b | 49.22 | a | 46.97 | a | 68.17 | ||
1995 | 47.33 | b | 57.76 | a | 57.23 | e | 63.39 | b | 70.40 | 80.86 | b | 90.30 | c | 91.14 | b | ----- | z | 69.38 | b | 60.62 | 49.78 | f | 68.84 | b | ||
1996 | 49.92 | a | 55.90 | c | 60.61 | c | 69.16 | e | 78.54 | e | 87.42 | d | 94.19 | b | 91.88 | a | 80.88 | b | 68.41 | b | 56.98 | d | 48.23 | c | 70.18 | |
1997 | 48.86 | b | 52.58 | c | 62.53 | b | 65.83 | c | 80.79 | b | 84.79 | d | 88.03 | 89.59 | c | 82.09 | b | 68.00 | 56.90 | 46.64 | c | 68.89 | ||||
1998 | 49.60 | a | 49.58 | b | 58.39 | c | 61.20 | 70.08 | 79.30 | b | 91.12 | b | 91.30 | a | 80.14 | a | 66.30 | c | 54.76 | a | 47.11 | 66.57 | ||||
1999 | 50.45 | a | 52.70 | 60.53 | 60.61 | g | 74.66 | c | 83.18 | b | 87.39 | c | 87.40 | e | 81.82 | b | 70.81 | d | 59.26 | e | 49.35 | e | 68.87 | a | ||
2000 | 51.16 | f | 53.73 | c | 58.36 | b | 70.15 | d | 80.82 | c | 87.71 | d | 91.04 | f | 91.09 | c | 81.92 | d | 68.80 | a | 50.60 | d | 50.39 | d | 69.36 | b |
2001 | 46.71 | g | 50.07 | f | 61.71 | e | 64.48 | f | 81.50 | c | 86.00 | g | 90.92 | f | 91.39 | i | 84.17 | d | 72.37 | e | 60.36 | i | 44.87 | h | 74.94 | h |
2002 | ----- | z | 50.55 | i | 57.78 | h | 72.06 | l | 76.57 | h | 88.61 | k | 95.86 | m | 91.45 | c | 83.15 | f | 68.52 | e | 57.35 | f | 47.93 | d | 69.30 | i |
2003 | 54.24 | 52.19 | b | 59.87 | a | 64.78 | e | 77.33 | g | 88.05 | j | 95.22 | f | 89.81 | e | 85.06 | d | 76.20 | c | 52.98 | e | 47.61 | c | 64.75 | c | |
2004 | 47.55 | c | 49.13 | c | 67.06 | d | 69.26 | e | 78.10 | g | 87.46 | d | 91.86 | i | 89.33 | a | 81.34 | a | 68.81 | 54.64 | b | 48.03 | 66.26 | b | ||
2005 | 51.15 | 53.25 | b | 59.64 | c | 64.70 | h | 77.08 | g | 83.80 | c | 94.12 | b | 89.60 | g | 81.02 | e | 70.10 | a | 59.54 | b | 48.30 | a | 66.77 | c | |
2006 | 50.30 | c | 52.04 | e | 55.37 | a | 65.29 | i | 81.25 | a | 90.56 | c | 94.89 | 90.19 | d | 80.86 | i | 69.57 | j | 58.64 | l | 46.81 | e | 70.17 | d | |
2007 | 46.21 | g | 58.10 | w | 63.56 | n | 69.44 | d | 79.82 | a | 87.95 | a | 94.70 | k | 90.64 | f | 84.19 | f | 69.88 | n | 60.88 | i | 44.50 | g | 79.07 | i |
2008 | 45.98 | c | 53.68 | r | 60.34 | f | 66.35 | m | 75.43 | p | 87.18 | s | 94.36 | q | 92.72 | v | 84.17 | o | 72.20 | i | 60.73 | b | 45.95 | k | 53.36 | j |
2009 | 50.84 | l | 50.23 | f | 58.48 | c | 66.72 | c | 83.04 | f | 82.80 | c | 94.45 | b | 89.93 | b | 85.95 | k | 68.12 | c | 59.29 | b | 45.10 | e | 70.61 | d |
2010 | 47.75 | e | 51.73 | h | 57.86 | f | 62.69 | d | 70.43 | h | 87.07 | i | 94.72 | d | 89.66 | c | 83.11 | l | 69.90 | j | 54.24 | g | 50.45 | b | 69.05 | g |
2011 | 47.88 | c | 49.86 | g | 59.75 | i | 65.50 | e | 69.77 | g | 83.59 | g | 90.52 | j | 91.91 | h | 82.87 | d | 70.88 | b | 54.70 | b | 46.19 | e | 61.33 | f |
2012 | 50.15 | 53.67 | 60.39 | c | 69.17 | 80.00 | c | 87.82 | b | 91.16 | f | 92.38 | b | 85.56 | f | 71.16 | b | 60.12 | e | 49.80 | c | 67.47 | b | |||
2013 | 45.06 | g | 51.19 | d | 65.38 | o | 69.78 | g | 78.73 | a | 90.15 | g | 94.82 | i | 89.50 | k | 80.15 | f | 66.41 | o | 59.40 | t | 45.92 | l | 64.96 | j |
2014 | 53.02 | i | 55.89 | e | 63.25 | i | 68.33 | d | 77.55 | l | 87.44 | c | 93.26 | l | 88.10 | g | 85.10 | d | 73.15 | d | 57.46 | e | 50.94 | d | 68.33 | e |
2015 | 51.50 | h | 60.04 | e | 67.05 | c | 69.44 | l | 71.71 | e | 89.36 | i | 87.35 | n | 91.69 | o | 85.60 | j | 72.00 | n | 54.02 | i | 46.28 | m | 66.27 | i |
2016 | 48.10 | g | 55.76 | 64.05 | 67.20 | 73.10 | 91.38 | 92.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.30 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.72 | 52.99 | 60.27 | 66.95 | 76.36 | 85.26 | 91.22 | 90.04 | 82.09 | 69.81 | 55.95 | 47.38 | 68.35 | |||||||||||||
S.D. | 2.31 | 3.23 | 3.39 | 2.61 | 4.06 | 3.53 | 2.83 | 1.66 | 1.54 | 2.41 | 3.59 | 2.50 | 1.32 | |||||||||||||
SKEW | 0.50 | 0.30 | 0.21 | -0.74 | -0.27 | 0.01 | 0.05 | -0.59 | 0.77 | 0.85 | -0.26 | -1.16 | 0.06 | |||||||||||||
MAX | 54.24 | 60.04 | 67.06 | 70.15 | 81.50 | 91.38 | 94.89 | 92.38 | 85.10 | 76.20 | 60.73 | 50.94 | 70.18 | |||||||||||||
MIN | 45.68 | 47.48 | 53.15 | 61.20 | 70.08 | 79.30 | 87.39 | 86.73 | 79.93 | 66.07 | 49.22 | 40.03 | 66.57 | |||||||||||||
YRS | 17 | 19 | 20 | 18 | 18 | 19 | 14 | 17 | 16 | 19 | 18 | 20 | 5 |