YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.34 | a | 68.15 | 57.02 | 47.85 | 61.09 | h | |||
1992 | 46.13 | a | 56.24 | 57.39 | 63.45 | 69.08 | 69.00 | a | 72.78 | b | 74.34 | 71.07 | 67.76 | b | 56.37 | 47.52 | a | 62.59 | ||||||||
1993 | 47.25 | a | 51.09 | 58.69 | 60.19 | a | 65.88 | a | 72.13 | c | 72.23 | 73.47 | a | 71.84 | b | 65.85 | d | 54.56 | d | 47.54 | d | 61.73 | ||||
1994 | 49.23 | g | 50.20 | c | 57.88 | b | 60.67 | g | 64.75 | e | 70.34 | b | 71.29 | b | 73.13 | e | 70.34 | e | 64.52 | b | 49.48 | e | 46.41 | c | 61.83 | b |
1995 | 52.58 | 54.43 | a | 54.23 | a | 59.07 | b | 62.73 | 68.86 | a | 74.11 | c | 74.60 | 71.93 | a | 66.78 | a | 60.33 | 53.82 | 62.79 | ||||||
1996 | 50.50 | 55.34 | 57.61 | 61.67 | a | 66.60 | b | 71.88 | a | 75.03 | a | 75.57 | b | 69.62 | 64.76 | 56.50 | 53.11 | 63.18 | ||||||||
1997 | 50.02 | 54.12 | 58.95 | 62.30 | 70.58 | 71.10 | 73.68 | 72.98 | b | 73.80 | 63.73 | c | 56.91 | b | 48.53 | a | 63.06 | |||||||||
1998 | 51.13 | 51.64 | 56.09 | b | 57.64 | b | 59.43 | b | 66.06 | d | ----- | z | 75.08 | g | 71.45 | h | 62.88 | e | 54.97 | 46.24 | 56.23 | c | ||||
1999 | 48.58 | e | 50.94 | b | 52.54 | d | 59.02 | a | 61.56 | e | 68.09 | b | 69.21 | l | 71.27 | g | 70.32 | h | 66.58 | f | 57.72 | e | 50.17 | g | 56.92 | e |
2000 | 52.57 | h | 53.67 | f | 56.92 | e | 61.74 | g | ----- | z | 70.89 | l | 70.68 | i | 73.44 | n | 72.02 | f | 62.73 | k | 51.39 | h | 50.11 | h | 56.92 | k |
2001 | 47.98 | g | 51.89 | f | 59.24 | f | 57.12 | f | 71.14 | f | 72.59 | g | 71.33 | g | 72.66 | i | 69.26 | g | 66.20 | h | 57.02 | d | 50.54 | h | 57.02 | k |
2002 | 47.34 | i | 53.14 | 54.62 | a | 59.67 | c | 64.24 | b | 69.96 | b | 72.81 | 71.33 | a | 71.44 | e | 64.10 | b | 56.98 | 51.45 | 62.70 | a | ||||
2003 | 52.21 | b | 52.35 | a | 58.05 | b | 55.74 | a | 64.30 | a | 69.57 | a | 74.95 | b | 72.89 | 72.77 | 67.77 | 53.48 | 50.55 | 62.05 | ||||||
2004 | 49.27 | a | 52.59 | 62.21 | 63.00 | a | 66.15 | 70.25 | 72.20 | c | 73.87 | d | 73.02 | d | 61.86 | f | 54.28 | 49.72 | b | 62.41 | a | |||||
2005 | 47.53 | 54.82 | 58.42 | 59.50 | 65.00 | 67.39 | b | 75.32 | a | 73.00 | b | 67.98 | b | 64.76 | 57.57 | 52.48 | 61.98 | |||||||||
2006 | 51.37 | 54.37 | b | 51.89 | 58.63 | 65.58 | g | 71.96 | d | 76.58 | f | 71.12 | f | 68.26 | k | 62.88 | g | 55.69 | a | 48.88 | b | 56.11 | e | |||
2007 | 47.42 | 53.06 | a | 59.34 | b | 61.38 | a | 65.80 | d | 69.92 | e | 72.11 | c | 74.30 | f | 69.48 | d | 61.81 | e | 57.12 | f | 48.40 | e | 60.87 | b | |
2008 | 47.87 | 52.18 | a | 55.58 | f | 58.06 | f | 65.72 | h | 71.28 | g | 72.22 | h | 74.34 | f | 71.24 | g | 65.88 | g | 57.40 | 47.48 | c | 51.23 | h | ||
2009 | 50.08 | g | 51.34 | f | 56.00 | b | 60.18 | e | 66.06 | d | 68.11 | k | 71.60 | f | 72.93 | j | 73.63 | g | 62.56 | f | 54.80 | e | 47.24 | f | 59.26 | h |
2010 | 49.57 | a | 54.06 | a | 56.48 | 56.83 | a | 61.86 | b | 69.41 | g | 70.30 | a | 70.05 | a | 72.46 | b | 64.63 | d | 54.88 | a | 51.00 | c | 60.19 | a | |
2011 | 48.15 | 50.38 | 54.80 | a | 59.43 | 62.10 | a | 68.37 | c | 72.02 | a | 71.83 | b | 73.38 | 65.20 | a | 53.67 | 49.35 | a | 60.72 | ||||||
2012 | 50.42 | a | 53.41 | a | 54.79 | 60.65 | 66.42 | 70.46 | d | 72.40 | e | 73.18 | l | 68.57 | i | 64.58 | 56.63 | 49.71 | 59.95 | b | ||||||
2013 | 46.40 | 51.89 | 58.10 | 64.00 | 67.29 | 71.93 | 72.97 | 72.45 | 71.35 | c | 63.25 | a | 57.36 | a | 47.81 | 62.07 | ||||||||||
2014 | 53.81 | 55.48 | a | 60.03 | 62.37 | 68.42 | 71.87 | 74.13 | a | 73.32 | 72.55 | 68.32 | 58.50 | 54.40 | 64.43 | |||||||||||
2015 | 51.52 | 57.88 | 62.26 | 61.67 | 62.61 | 71.98 | 74.39 | 74.52 | 74.62 | 70.15 | 54.67 | 49.60 | 63.82 | |||||||||||||
2016 | 51.89 | 56.81 | 58.66 | 63.17 | 66.32 | 72.68 | 73.90 | 71.94 | 72.13 | 65.00 | 57.98 | 49.02 | 63.29 | |||||||||||||
2017 | 49.24 | 54.21 | 59.02 | 60.20 | 67.00 | 72.72 | 74.98 | 74.08 | 74.48 | 65.40 | 57.78 | 49.65 | 63.23 | |||||||||||||
2018 | 52.24 | 54.64 | 56.06 | 61.23 | 64.73 | 71.57 | 74.82 | 73.43 | a | 70.23 | 66.77 | 57.87 | 51.76 | 62.95 | ||||||||||||
2019 | 52.37 | 49.39 | 54.89 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.22 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.89 | 53.39 | 57.15 | 60.48 | 65.17 | 70.37 | 73.32 | 73.16 | 71.79 | 65.53 | 56.17 | 49.68 | 62.71 | |||||||||||||
S.D. | 2.19 | 2.15 | 2.57 | 2.13 | 2.62 | 1.82 | 1.41 | 1.32 | 1.71 | 2.06 | 2.13 | 2.25 | 0.94 | |||||||||||||
SKEW | -0.09 | 0.07 | -0.02 | -0.33 | -0.15 | -0.65 | -0.31 | -0.48 | -0.30 | 0.41 | -1.02 | 0.52 | -0.25 | |||||||||||||
MAX | 53.81 | 57.88 | 62.26 | 64.00 | 70.58 | 72.72 | 75.32 | 75.57 | 74.62 | 70.15 | 60.33 | 54.40 | 64.43 | |||||||||||||
MIN | 46.13 | 49.39 | 51.89 | 55.74 | 59.43 | 66.06 | 70.30 | 70.05 | 67.98 | 61.81 | 49.48 | 46.24 | 60.72 | |||||||||||||
YRS | 23 | 25 | 26 | 23 | 23 | 22 | 20 | 18 | 20 | 21 | 26 | 24 | 14 |