YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.38 | a | 82.32 | 68.17 | 56.90 | 73.44 | h | |||
1992 | 52.87 | 64.66 | 65.77 | 75.43 | 82.58 | 80.72 | a | 86.41 | b | 90.10 | 85.27 | 79.97 | b | 66.97 | 54.77 | 73.79 | ||||||||||
1993 | 55.48 | 58.68 | 67.23 | 70.79 | a | 77.53 | a | 86.15 | c | 86.68 | 87.77 | a | 87.93 | b | 77.30 | d | 66.08 | d | 55.04 | d | 73.05 | |||||
1994 | 58.71 | g | 58.96 | c | 70.21 | b | 71.87 | g | 76.11 | d | 85.36 | b | 86.62 | b | 88.04 | e | 83.48 | e | 76.52 | b | 58.00 | e | 53.14 | c | 73.64 | b |
1995 | 57.45 | 61.85 | a | 62.81 | 69.14 | b | 73.06 | 81.31 | a | 87.83 | b | 90.06 | 85.90 | a | 80.43 | a | 72.17 | 60.55 | 73.55 | |||||||
1996 | 57.74 | 63.03 | 68.03 | 73.30 | 78.70 | a | 87.03 | a | 91.55 | 92.76 | b | 83.63 | 76.61 | 65.63 | 60.10 | 74.84 | ||||||||||
1997 | 56.16 | 64.29 | 70.84 | 74.20 | 83.68 | 84.50 | 88.87 | 85.38 | b | 86.87 | 75.57 | c | 64.96 | b | 57.43 | a | 74.40 | |||||||||
1998 | 57.35 | 58.64 | 65.41 | b | 67.82 | b | 67.70 | a | 76.44 | c | ----- | z | 90.83 | g | 84.09 | h | 74.31 | e | 63.33 | 56.10 | 65.24 | c | ||||
1999 | 56.42 | e | 59.04 | b | 61.22 | d | 70.55 | a | 73.85 | e | 82.52 | a | 82.86 | j | 84.00 | g | 83.45 | h | 80.24 | f | 67.28 | e | 62.08 | g | 67.27 | e |
2000 | 59.87 | h | 60.46 | e | 67.77 | e | 73.57 | g | ----- | z | 84.67 | l | 84.32 | i | 86.94 | m | 87.33 | f | 73.24 | j | 61.23 | h | 59.57 | h | 64.11 | j |
2001 | 58.08 | g | 61.45 | f | 70.64 | f | 68.42 | f | 86.80 | f | 87.74 | g | 85.00 | g | 87.23 | i | 82.78 | g | 78.00 | h | 66.81 | d | 56.00 | g | 66.81 | k |
2002 | 55.68 | i | 64.29 | 66.00 | a | 70.78 | c | 77.41 | b | 84.04 | b | 87.90 | 86.23 | a | 86.52 | e | 76.69 | b | 68.40 | 59.32 | 75.23 | a | ||||
2003 | 59.10 | b | 62.74 | a | 68.53 | a | 65.10 | a | 76.57 | a | 83.31 | a | 91.34 | b | 86.29 | 87.00 | 81.77 | 62.03 | 57.90 | 73.48 | ||||||
2004 | 56.33 | a | 60.76 | 75.65 | 76.21 | a | 78.16 | 83.20 | 86.21 | c | 87.89 | c | 87.46 | d | 72.20 | f | 63.57 | 58.03 | b | 73.95 | a | |||||
2005 | 54.19 | 63.36 | 68.48 | 70.40 | 75.29 | 79.29 | b | 91.57 | a | 88.45 | b | 81.04 | b | 77.29 | 68.67 | 59.97 | 73.17 | |||||||||
2006 | 59.87 | 65.50 | b | 59.97 | 67.60 | 78.12 | g | 86.08 | d | 92.68 | f | 84.56 | f | 82.21 | k | 74.21 | g | 64.97 | a | 59.31 | b | 66.18 | e | |||
2007 | 59.29 | 62.00 | a | 72.50 | a | 74.62 | a | 78.70 | d | 84.08 | e | 86.14 | c | 88.50 | e | 82.62 | d | 73.46 | e | 68.42 | f | 56.50 | e | 74.40 | a | |
2008 | 54.45 | 61.93 | a | 67.04 | f | 70.71 | f | 78.22 | h | 85.74 | g | 86.57 | h | 90.24 | f | 85.22 | g | 79.08 | g | 67.83 | 56.59 | b | 60.20 | h | ||
2009 | 60.92 | g | 59.59 | f | 66.83 | b | 72.88 | e | 78.37 | d | 79.95 | k | 87.24 | f | 87.90 | j | 88.91 | g | 74.24 | f | 66.88 | e | 54.84 | f | 71.24 | h |
2010 | 55.07 | a | 61.70 | a | 67.13 | 67.14 | a | 73.72 | b | 82.57 | g | 84.42 | 84.40 | a | 86.89 | b | 76.04 | c | 65.17 | a | 57.40 | a | 70.83 | a | ||
2011 | 56.10 | 61.21 | 62.97 | a | 69.90 | 73.97 | a | 81.11 | b | 86.10 | a | 86.69 | b | 88.47 | 76.90 | 62.53 | 60.53 | a | 72.21 | |||||||
2012 | 61.40 | a | 64.46 | a | 64.74 | 72.13 | 80.52 | 83.89 | c | 88.22 | d | 88.32 | l | 82.67 | i | 74.35 | 65.20 | 56.06 | 71.10 | b | ||||||
2013 | 56.48 | 63.14 | 69.10 | 76.60 | 80.00 | 86.07 | 87.97 | 85.35 | 83.30 | c | 76.33 | a | 68.00 | a | 59.65 | 74.33 | ||||||||||
2014 | 66.26 | 63.93 | a | 70.58 | 74.00 | 81.71 | 86.77 | 87.80 | a | 86.58 | 84.70 | 80.94 | 67.80 | 60.68 | 75.98 | |||||||||||
2015 | 61.16 | 68.14 | 74.26 | 73.70 | 72.48 | 88.03 | 87.68 | 88.13 | 90.03 | 82.81 | 66.57 | 57.87 | 75.91 | |||||||||||||
2016 | 57.74 | 68.24 | 67.68 | 74.47 | 78.13 | 88.03 | 90.35 | 86.74 | 87.80 | 75.94 | 67.30 | 58.29 | 75.06 | |||||||||||||
2017 | 57.10 | 61.96 | 70.45 | 71.30 | 80.39 | 86.67 | 91.13 | 87.71 | 87.47 | 79.10 | 66.03 | 61.52 | 75.07 | |||||||||||||
2018 | 59.81 | 67.21 | 66.61 | 72.93 | 75.77 | 86.57 | 90.13 | 88.77 | a | 84.07 | 78.48 | 68.57 | 58.90 | 74.82 | ||||||||||||
2019 | 59.45 | 55.57 | 62.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.27 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 57.71 | 62.53 | 67.44 | 71.78 | 77.15 | 84.14 | 88.25 | 87.68 | 85.84 | 77.77 | 66.11 | 58.02 | 74.26 | |||||||||||||
S.D. | 2.89 | 3.01 | 3.79 | 3.06 | 3.68 | 2.98 | 2.12 | 1.95 | 2.26 | 2.71 | 2.73 | 2.13 | 1.10 | |||||||||||||
SKEW | 0.98 | -0.05 | 0.10 | -0.38 | -0.46 | -0.83 | 0.25 | 0.71 | -0.33 | 0.41 | -0.79 | -0.38 | -0.10 | |||||||||||||
MAX | 66.26 | 68.24 | 75.65 | 76.60 | 83.68 | 88.03 | 91.57 | 92.76 | 90.03 | 82.81 | 72.17 | 61.52 | 75.98 | |||||||||||||
MIN | 52.87 | 55.57 | 59.97 | 65.10 | 67.70 | 76.44 | 84.42 | 84.40 | 81.04 | 73.46 | 58.00 | 53.14 | 72.21 | |||||||||||||
YRS | 23 | 26 | 26 | 23 | 23 | 22 | 20 | 19 | 20 | 21 | 26 | 24 | 14 |