YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.18 | b | 74.19 | 74.19 | j | |
1980 | 68.10 | 73.24 | 70.35 | 76.75 | b | 71.61 | 85.73 | 91.48 | 89.03 | 85.57 | 83.63 | a | 76.73 | 75.57 | a | 78.98 | ||||||||||
1981 | 71.16 | 75.21 | 70.10 | a | 75.03 | 78.35 | ----- | z | 90.27 | a | 92.10 | 88.63 | 78.19 | 75.93 | 72.50 | a | 78.86 | a | ||||||||
1982 | 66.55 | b | 70.62 | d | 69.36 | c | 74.70 | 75.07 | d | 76.74 | c | 89.17 | b | 91.17 | b | 87.88 | d | 84.63 | a | 72.20 | ----- | z | 78.01 | a | ||
1983 | 71.71 | 68.79 | d | 68.83 | a | 71.48 | a | 79.41 | b | 80.81 | c | 89.42 | 92.70 | a | 91.82 | b | 83.62 | b | 71.93 | a | 67.67 | a | 78.18 | |||
1984 | 72.17 | a | 72.79 | a | 76.13 | a | 74.78 | c | 82.33 | d | 80.32 | b | 90.96 | c | 87.48 | b | 92.00 | e | 77.68 | c | 69.21 | b | 64.00 | g | 79.62 | a |
1985 | 65.48 | b | 67.65 | b | 68.27 | e | 77.46 | d | 74.78 | d | 85.42 | d | 91.22 | d | 88.48 | d | 81.38 | f | 79.90 | b | 67.11 | c | 70.19 | 76.00 | a | |
1986 | 73.81 | d | ----- | z | 71.66 | b | 75.16 | e | 77.67 | d | 82.57 | 86.07 | d | 89.86 | c | 79.32 | b | 78.18 | c | 76.04 | b | 68.83 | b | 78.11 | a | |
1987 | 66.00 | c | 68.11 | a | 69.79 | b | 79.25 | f | 75.83 | b | 79.96 | d | 80.92 | g | 84.00 | e | 86.42 | d | 81.25 | c | ----- | z | 62.93 | c | 74.92 | c |
1988 | 68.07 | d | 75.24 | d | 75.50 | e | 74.55 | j | 78.96 | f | 79.12 | d | 85.78 | d | 85.47 | a | 84.91 | h | 80.00 | f | 71.73 | d | 66.97 | b | 75.98 | d |
1989 | 69.29 | c | 68.39 | j | 74.65 | h | 82.83 | l | 76.32 | c | 80.63 | k | 87.11 | d | 84.36 | c | 89.64 | e | 78.69 | b | 77.18 | b | 72.69 | e | 79.41 | d |
1990 | 69.04 | c | 68.43 | e | 70.21 | b | 73.61 | b | 76.74 | d | 85.48 | e | 89.89 | d | 86.90 | b | 86.44 | c | 83.72 | b | 76.59 | a | 68.24 | b | 77.94 | |
1991 | 69.42 | e | 74.91 | e | 65.04 | d | 73.74 | c | 74.50 | c | 76.74 | c | 81.65 | 85.31 | b | ----- | z | 85.31 | e | 78.15 | d | 67.55 | b | 75.67 | a | |
1992 | 70.76 | b | 71.96 | d | 66.83 | b | ----- | z | 77.54 | c | ----- | z | 86.22 | d | 90.75 | c | 89.93 | a | ----- | z | 75.00 | a | 64.22 | d | 77.02 | c |
1993 | 66.57 | c | 66.38 | b | 73.63 | a | 77.50 | d | 79.00 | f | 83.58 | d | 81.63 | a | 85.30 | d | 86.62 | d | 80.54 | e | 73.85 | c | 69.59 | b | 76.84 | a |
1994 | 73.18 | c | 66.62 | b | ----- | z | 72.83 | 72.79 | c | ----- | z | 84.25 | c | 91.29 | ----- | z | 78.07 | a | 68.03 | 66.35 | 74.82 | c | ||||
1995 | 63.83 | a | 72.07 | 68.37 | a | 72.63 | 70.77 | 79.24 | a | 88.34 | b | 94.42 | g | 90.45 | a | 83.94 | 80.20 | 71.45 | 76.48 | a | ||||||
1996 | ----- | z | 70.26 | b | 73.60 | a | 80.90 | a | 81.89 | d | 85.96 | d | 90.90 | b | 92.70 | k | 86.76 | m | 78.83 | g | 76.29 | b | 70.65 | e | 78.81 | d |
1997 | 67.56 | d | 70.65 | e | 80.42 | e | 76.92 | d | 86.00 | c | 81.77 | 86.40 | a | 90.61 | h | ----- | z | 84.24 | b | 77.80 | j | ----- | z | 79.25 | d | |
1998 | 68.37 | d | 64.64 | 70.73 | e | ----- | z | 74.03 | 80.59 | a | ----- | z | ----- | z | ----- | z | ----- | z | 74.24 | a | ----- | z | 72.10 | f | ||
1999 | 71.57 | c | 70.25 | 69.11 | d | 71.69 | d | 75.57 | a | 81.36 | b | 87.84 | 88.36 | c | 84.62 | a | 90.58 | e | 77.32 | e | 73.77 | e | 78.50 | |||
2000 | 73.24 | b | 71.48 | b | 72.73 | a | 80.11 | c | 81.52 | 85.69 | a | 87.44 | d | 91.66 | b | 88.37 | 75.71 | c | 73.04 | b | 74.07 | c | 79.59 | |||
2001 | 66.11 | d | 67.00 | a | 70.34 | b | 73.15 | c | 81.55 | 86.03 | a | 86.03 | 88.64 | c | 88.27 | 82.12 | g | 74.11 | b | 67.39 | h | 78.12 | b | |||
2002 | 69.00 | 74.69 | b | 71.23 | a | 73.33 | c | 76.25 | c | 81.93 | c | 85.03 | b | 86.41 | i | 89.13 | g | 75.81 | d | 79.14 | b | 67.15 | d | 75.36 | b | |
2003 | 78.89 | d | 70.33 | m | 74.38 | e | 71.19 | d | 77.37 | d | 75.62 | d | 88.55 | b | 92.70 | a | 87.93 | a | 85.46 | g | 72.33 | c | 68.89 | d | 78.79 | b |
2004 | 69.12 | e | 68.40 | d | 78.04 | f | 80.62 | n | 83.53 | n | 79.12 | f | 88.87 | a | 87.34 | b | 88.61 | l | 76.09 | h | 71.33 | f | 69.30 | a | 76.61 | g |
2005 | 67.48 | b | 66.58 | d | 70.77 | a | 78.61 | b | 80.45 | b | 80.63 | 90.52 | 89.53 | a | 87.20 | e | 80.00 | f | 79.11 | c | 72.48 | 78.49 | a | |||
2006 | 70.71 | 74.85 | b | 67.64 | c | 75.76 | a | 78.52 | 89.78 | c | 94.06 | 89.81 | 92.22 | c | 79.52 | j | 80.42 | d | 73.00 | b | 80.62 | a | ||||
2007 | 69.44 | d | 70.81 | b | 77.71 | 74.37 | 78.44 | d | 83.60 | 88.43 | c | 91.38 | j | 85.70 | g | 83.92 | g | 75.33 | 68.60 | a | 76.30 | c | ||||
2008 | 66.41 | b | 70.30 | b | 76.65 | n | 79.72 | a | 78.77 | a | 86.66 | a | 88.00 | e | 90.41 | d | 91.54 | b | 90.12 | f | 82.63 | 68.17 | a | 80.26 | b | |
2009 | 76.13 | 69.36 | 74.00 | a | 75.44 | e | 77.53 | a | 77.97 | 89.06 | 90.06 | 90.80 | 81.42 | 76.93 | 68.29 | 78.92 | ||||||||||
2010 | 71.55 | 69.04 | a | 70.94 | 73.19 | d | 76.68 | 79.23 | 83.87 | a | 88.10 | 87.40 | 75.23 | 72.47 | 68.23 | 76.33 | ||||||||||
2011 | 72.90 | 64.29 | 69.90 | 74.85 | d | 75.68 | 78.30 | 84.81 | 86.87 | 84.23 | 81.10 | 71.93 | b | 67.58 | 76.04 | |||||||||||
2012 | 72.97 | 69.07 | 68.87 | 73.77 | 76.94 | 80.27 | 84.61 | 89.26 | 91.17 | 82.71 | 75.23 | 65.42 | 77.52 | |||||||||||||
2013 | 67.19 | 67.07 | 73.26 | 72.47 | 77.61 | 79.60 | 83.77 | 86.32 | 86.03 | 77.30 | a | 73.30 | 70.32 | 76.19 | ||||||||||||
2014 | 75.35 | 72.68 | 74.58 | 76.73 | 81.10 | 81.67 | 87.68 | 88.68 | 90.38 | a | 84.84 | 78.23 | 69.13 | 80.09 | ||||||||||||
2015 | 72.94 | 76.57 | 79.87 | 76.73 | 71.74 | 83.30 | 83.84 | 89.58 | 90.33 | 84.71 | 74.53 | 68.26 | 79.37 | |||||||||||||
2016 | 66.84 | 80.14 | 73.39 | 76.17 | 72.42 | 84.87 | 88.29 | 89.00 | 85.13 | 83.13 | 79.07 | 69.10 | 78.96 | |||||||||||||
2017 | 65.06 | 68.14 | 77.52 | 78.27 | 75.32 | 83.33 | 87.81 | 88.06 | 85.40 | 86.19 | 78.23 | 76.65 | 79.17 | |||||||||||||
2018 | 75.71 | 70.93 | 71.52 | 76.03 | 73.61 | 80.60 | 90.74 | 90.00 | 85.90 | 80.77 | 76.70 | 69.29 | 78.48 | |||||||||||||
2019 | 68.77 | 62.96 | 69.58 | 74.70 | 70.23 | 79.17 | 85.84 | 89.00 | 86.17 | 83.90 | 77.00 | 66.74 | 76.17 | |||||||||||||
2020 | 70.13 | 71.59 | 66.42 | 72.43 | 80.10 | 80.97 | 87.35 | 91.29 | 93.17 | 87.03 | 76.70 | 71.48 | 79.05 | |||||||||||||
2021 | 70.74 | 70.82 | 68.71 | 74.80 | 74.48 | 82.23 | 87.26 | 88.61 | 87.13 | 78.90 | 79.83 | 64.97 | 77.37 | |||||||||||||
2022 | 70.87 | 72.61 | 73.10 | 75.47 | 74.81 | 84.57 | 84.81 | 89.52 | 88.93 | 79.13 | 70.67 | 66.55 | 77.58 | |||||||||||||
2023 | 63.39 | 64.75 | 63.90 | 71.73 | 69.81 | 74.80 | 88.58 | 87.97 | 81.10 | 82.42 | 76.73 | 71.55 | 74.73 | |||||||||||||
2024 | 67.26 | 64.83 | 66.79 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.04 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 69.79 | 70.16 | 71.46 | 75.11 | 76.64 | 81.70 | 87.47 | 88.81 | 87.89 | 81.59 | 75.37 | 69.46 | 77.96 | |||||||||||||
S.D. | 3.41 | 3.69 | 3.71 | 2.45 | 3.58 | 3.32 | 2.74 | 2.20 | 3.11 | 3.60 | 3.40 | 3.08 | 1.44 | |||||||||||||
SKEW | 0.41 | 0.30 | 0.47 | 0.48 | 0.21 | 0.11 | -0.07 | -0.32 | -0.58 | 0.15 | -0.36 | 0.29 | -0.61 | |||||||||||||
MAX | 78.89 | 80.14 | 80.42 | 80.90 | 86.00 | 89.78 | 94.06 | 92.70 | 93.17 | 90.58 | 82.63 | 76.65 | 80.09 | |||||||||||||
MIN | 63.39 | 62.96 | 63.90 | 71.19 | 69.81 | 74.80 | 81.63 | 84.00 | 79.32 | 75.23 | 67.11 | 62.93 | 74.73 | |||||||||||||
YRS | 44 | 42 | 40 | 38 | 41 | 39 | 42 | 38 | 34 | 33 | 42 | 40 | 20 |