YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | 74.05 | b | 81.27 | b | 85.25 | a | 84.28 | d | 82.33 | f | 70.84 | 59.67 | 51.40 | a | 72.39 | e | ||
1999 | 54.55 | a | 56.33 | a | 60.94 | 61.86 | a | 74.52 | c | 81.57 | c | 83.97 | b | 84.19 | 81.00 | d | 73.05 | 64.66 | a | 51.00 | a | 68.97 | ||||
2000 | 55.32 | c | 57.33 | 58.89 | d | 70.10 | a | 79.88 | a | 84.71 | a | 87.30 | c | 84.45 | a | 83.10 | 68.58 | a | 51.60 | a | 53.75 | a | 69.59 | |||
2001 | 49.40 | a | 51.62 | b | 59.25 | a | 65.89 | c | 78.29 | b | 84.80 | 84.87 | 84.31 | 82.45 | b | 71.53 | 62.28 | 47.64 | c | 68.53 | ||||||
2002 | 52.07 | h | 54.92 | c | 57.46 | f | 70.58 | 74.74 | 87.25 | 86.26 | 84.90 | 81.40 | a | 68.71 | 60.21 | a | 49.83 | b | 71.88 | b | ||||||
2003 | 56.96 | c | 54.08 | c | 58.74 | 64.64 | a | 76.29 | b | 84.57 | c | 89.22 | a | 84.39 | c | 81.58 | 74.48 | a | 58.03 | a | 52.53 | a | 69.63 | |||
2004 | 52.07 | d | 50.19 | h | 65.47 | a | 65.36 | b | 76.24 | 82.89 | b | 85.24 | b | 83.53 | 79.40 | a | 69.38 | a | 54.95 | 50.33 | g | 71.45 | b | |||
2005 | 53.37 | 53.66 | 58.79 | 66.09 | a | 76.07 | b | 83.75 | 89.13 | a | 82.39 | 81.92 | 71.13 | d | 61.79 | a | 53.83 | a | 69.33 | |||||||
2006 | 52.61 | 56.31 | a | 57.63 | 67.23 | 78.05 | b | 87.12 | b | 86.36 | c | 82.33 | a | 76.75 | b | 69.23 | 62.50 | 49.76 | 68.82 | |||||||
2007 | 47.31 | 54.32 | 61.98 | 67.43 | 76.04 | c | 85.22 | 86.90 | 84.76 | 80.67 | 70.55 | a | 64.72 | 48.73 | a | 69.05 | ||||||||||
2008 | 49.98 | a | 54.24 | 61.00 | a | 66.98 | 72.20 | a | 85.80 | 83.83 | a | 83.69 | 79.82 | 70.64 | c | 61.84 | a | 52.38 | a | 68.54 | ||||||
2009 | 54.55 | 56.32 | 62.19 | 65.23 | 78.11 | 80.75 | 87.87 | a | 86.96 | c | 81.62 | 68.90 | a | 62.13 | 49.53 | a | 69.51 | |||||||||
2010 | 51.39 | 52.18 | 56.47 | 65.11 | l | ----- | z | 84.29 | d | 87.18 | 84.71 | 82.33 | 70.48 | a | 57.23 | 56.15 | a | 68.24 | b | |||||||
2011 | 50.23 | a | 49.66 | 62.55 | 68.90 | a | 72.32 | 84.48 | 85.52 | a | 87.31 | 81.45 | 71.10 | a | 57.82 | 47.15 | a | 68.21 | ||||||||
2012 | 53.94 | 54.29 | 58.76 | 69.03 | a | 76.52 | b | 85.93 | b | 84.19 | 85.48 | a | 79.40 | a | 71.52 | 62.92 | e | 52.57 | a | 69.55 | ||||||
2013 | 47.47 | 49.18 | 63.45 | 67.67 | a | 75.58 | e | 86.58 | d | 84.85 | 84.35 | d | 79.72 | a | 67.98 | 60.91 | a | 51.32 | a | 68.26 | ||||||
2014 | 54.88 | b | 58.57 | 62.18 | a | 66.77 | d | 74.85 | 86.52 | 85.71 | b | 82.60 | b | 80.24 | a | 72.92 | a | 59.89 | b | 52.62 | a | 69.81 | ||||
2015 | 52.93 | a | 59.96 | 63.56 | 66.18 | 70.45 | 85.90 | 84.80 | i | 86.00 | b | 80.23 | b | 71.91 | c | 55.42 | f | 51.21 | c | 68.84 | b | |||||
2016 | 51.02 | 59.44 | e | 62.94 | d | 67.08 | d | 72.20 | a | 85.81 | a | 88.45 | k | 82.93 | b | 78.15 | c | 74.55 | b | 61.82 | b | 55.89 | h | 69.59 | b | |
2017 | 50.70 | d | 57.82 | 65.73 | a | 68.91 | a | 73.58 | f | 87.05 | h | 84.85 | g | 83.55 | a | 79.95 | b | 74.83 | a | 67.34 | b | 54.50 | b | 67.04 | c | |
2018 | 56.39 | 54.88 | c | 60.65 | 70.19 | c | 75.67 | a | 84.54 | b | 85.93 | b | 84.11 | c | 81.81 | a | 67.39 | 57.65 | 51.74 | 69.24 | ||||||
2019 | 50.85 | 50.48 | c | 59.53 | a | 66.75 | 68.08 | 81.18 | 87.60 | 86.12 | a | 80.63 | 69.65 | 61.27 | 51.10 | 67.77 | ||||||||||
2020 | 51.69 | 52.76 | 57.81 | 66.23 | 77.53 | b | 84.22 | 89.05 | 89.94 | 82.15 | 73.70 | a | 62.83 | 50.90 | 69.90 | |||||||||||
2021 | 50.60 | 54.62 | 56.84 | 68.92 | e | 75.45 | c | 86.71 | a | 83.00 | 84.25 | m | 80.17 | 67.93 | a | 63.78 | 54.72 | b | 67.52 | a | ||||||
2022 | 51.47 | 51.17 | a | 59.09 | b | 68.41 | a | 75.34 | 84.83 | 85.45 | 82.91 | b | 80.78 | a | 68.57 | a | 54.55 | b | 51.37 | 67.83 | ||||||
2023 | 49.63 | 50.38 | 57.18 | 65.84 | b | 74.50 | c | 80.22 | 90.85 | 86.53 | a | 82.13 | 73.29 | 62.40 | 54.36 | f | 70.27 | a | ||||||||
2024 | 50.48 | a | 55.17 | 57.13 | a | 61.53 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.26 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.99 | 54.39 | 60.35 | 67.18 | 75.12 | 84.44 | 86.33 | 84.67 | 80.75 | 70.88 | 60.59 | 51.55 | 68.97 | |||||||||||||
S.D. | 2.53 | 2.99 | 2.68 | 2.00 | 2.65 | 2.06 | 1.98 | 1.75 | 1.44 | 2.21 | 3.55 | 2.21 | 0.68 | |||||||||||||
SKEW | 0.16 | 0.04 | 0.39 | -0.40 | -0.75 | -0.66 | 0.49 | 1.11 | -0.83 | 0.27 | -0.67 | -0.03 | -0.38 | |||||||||||||
MAX | 56.96 | 59.96 | 65.73 | 70.58 | 79.88 | 87.25 | 90.85 | 89.94 | 83.10 | 74.83 | 67.34 | 56.15 | 69.90 | |||||||||||||
MIN | 47.31 | 49.18 | 56.47 | 61.86 | 68.08 | 80.22 | 83.00 | 82.33 | 76.75 | 67.39 | 51.60 | 47.15 | 67.77 | |||||||||||||
YRS | 25 | 25 | 25 | 24 | 24 | 25 | 23 | 25 | 25 | 26 | 25 | 23 | 17 |