YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | 42.29 | q | 44.70 | i | 47.89 | d | 53.54 | d | 59.64 | f | 70.69 | d | 79.35 | 73.70 | a | 67.50 | b | 61.67 | d | 47.44 | c | 37.39 | m | 62.72 | d | |
1989 | 39.17 | b | 41.15 | a | 49.18 | c | 59.64 | b | 63.93 | a | 72.34 | a | 80.79 | b | 76.27 | a | 68.04 | e | 57.35 | e | 51.64 | b | 41.52 | b | 58.42 | |
1990 | 38.65 | e | 43.05 | f | 51.26 | d | 57.90 | 64.65 | e | 74.21 | b | 78.55 | 76.80 | a | 72.72 | e | 59.03 | a | 49.75 | b | 36.35 | e | 59.99 | a | ||
1991 | 40.93 | c | 47.73 | f | 43.61 | c | 53.00 | e | 59.21 | c | 67.74 | c | 76.93 | b | 76.04 | e | 71.90 | a | 60.97 | b | 50.17 | a | 41.30 | a | 58.34 | a |
1992 | 41.59 | d | 47.96 | d | 50.30 | a | 57.40 | 66.93 | b | 69.48 | c | 78.82 | c | 79.93 | c | 70.96 | c | 60.40 | f | 48.25 | f | 40.80 | f | 62.60 | c | |
1993 | 43.19 | j | 46.05 | h | ----- | z | 54.38 | i | 64.21 | b | 69.82 | b | 74.29 | c | 74.50 | g | 69.17 | f | 59.61 | h | 44.71 | f | 41.12 | e | 62.36 | h |
1994 | 40.32 | c | 41.54 | d | 51.03 | a | 57.31 | a | 63.54 | c | 75.81 | c | 79.93 | a | 83.07 | b | 74.93 | c | 56.15 | e | 42.97 | a | 43.93 | c | 59.21 | |
1995 | 44.69 | e | 50.64 | f | 51.21 | c | 53.96 | d | 59.66 | b | 70.04 | c | 77.23 | 79.55 | 75.28 | l | 58.44 | f | 51.85 | c | 44.45 | b | 59.18 | c | ||
1996 | 41.25 | g | 50.21 | e | 52.12 | f | 59.32 | b | 66.80 | f | 74.68 | b | 85.10 | a | 82.92 | e | 73.28 | e | 61.96 | e | 51.96 | f | 43.14 | b | 66.33 | d |
1997 | 46.36 | c | 45.35 | e | 53.61 | c | 58.52 | c | 72.07 | c | ----- | z | 77.11 | c | 82.74 | d | 77.54 | b | 59.81 | e | 49.89 | b | 43.59 | d | 60.60 | a |
1998 | 42.00 | b | 45.42 | b | 50.69 | b | 51.46 | d | 60.65 | 69.19 | d | 82.56 | d | 83.28 | b | 72.96 | b | 59.07 | b | 48.77 | 44.43 | a | 59.21 | |||
1999 | 44.20 | a | 45.85 | b | 50.36 | c | 53.29 | b | 64.67 | a | 71.70 | 81.39 | 80.29 | c | 74.72 | a | 61.80 | a | 51.14 | a | 46.07 | d | 60.46 | |||
2000 | 43.73 | e | 48.19 | b | 51.79 | b | 59.34 | a | 70.84 | 77.93 | c | 80.90 | b | 82.33 | a | 72.30 | 61.50 | a | 45.75 | b | 45.38 | b | 61.66 | |||
2001 | 42.62 | b | 44.52 | c | 51.59 | b | 54.75 | b | 70.81 | 75.66 | a | 79.52 | 81.55 | b | ----- | z | 60.59 | b | 48.00 | n | 38.58 | e | 60.02 | b | ||
2002 | 42.80 | a | 45.38 | d | 48.74 | 58.82 | b | 64.53 | a | 76.33 | r | 84.07 | a | 78.37 | d | 73.73 | 58.70 | d | 53.74 | c | 42.72 | b | 59.24 | a | ||
2003 | 47.72 | b | 47.04 | 49.96 | h | 55.04 | d | 66.54 | e | 75.83 | a | 85.06 | 82.50 | c | 74.82 | b | 67.34 | b | 47.11 | c | 41.20 | f | 64.90 | b | ||
2004 | 43.52 | b | 43.38 | c | 56.35 | e | 58.81 | d | 66.88 | g | 74.56 | c | 79.83 | a | 75.00 | y | 71.90 | 60.42 | e | 48.63 | c | 45.52 | d | 58.29 | b | |
2005 | 46.70 | a | 48.77 | b | 49.61 | 53.44 | c | 66.59 | b | 72.55 | a | 81.76 | b | 79.59 | d | 69.89 | c | 61.55 | b | 53.10 | 43.17 | a | 60.56 | |||
2006 | 43.03 | b | 46.81 | b | 45.96 | c | 56.38 | d | 68.69 | b | 78.04 | c | 85.14 | b | 81.28 | b | 72.47 | 61.79 | b | 50.31 | d | 43.00 | a | 61.07 | ||
2007 | 40.04 | c | 45.79 | 52.36 | c | 59.43 | 68.04 | c | 73.66 | a | 83.04 | d | 83.74 | d | 74.53 | 59.83 | b | 54.26 | c | 43.21 | c | 61.49 | ||||
2008 | 41.45 | b | 44.82 | a | 49.37 | a | 57.43 | 63.90 | a | 74.87 | 83.80 | a | 82.06 | 73.60 | 60.65 | 54.40 | 42.19 | 60.71 | ||||||||
2009 | 49.65 | 44.68 | 48.48 | 56.20 | 71.26 | 73.07 | a | 82.90 | a | 76.60 | a | 75.23 | 57.83 | a | 50.33 | 42.00 | b | 60.69 | ||||||||
2010 | 45.74 | 48.21 | 47.97 | 53.40 | 62.03 | 73.83 | 85.13 | 79.17 | a | 70.00 | a | 64.17 | a | 49.79 | a | 47.17 | a | 60.55 | ||||||||
2011 | 44.83 | a | 42.54 | 50.17 | a | 56.63 | 61.57 | a | 73.32 | b | 80.87 | a | 82.07 | b | 73.47 | 60.55 | 48.20 | 40.79 | b | 59.58 | ||||||
2012 | 42.90 | 46.48 | 49.61 | 58.67 | 68.39 | 74.73 | 80.62 | b | 85.17 | b | 76.55 | a | 61.71 | 49.77 | 42.60 | a | 61.43 | |||||||||
2013 | 43.13 | a | 43.71 | 53.10 | a | 58.57 | 67.00 | 75.97 | 84.52 | b | 78.94 | 72.28 | a | 56.77 | a | 51.38 | a | 43.60 | a | 60.75 | ||||||
2014 | 45.81 | 48.33 | a | 54.42 | 58.28 | a | 67.31 | b | 75.86 | b | 84.33 | a | 78.13 | a | 74.83 | 63.85 | d | 52.44 | c | 46.67 | d | 62.52 | ||||
2015 | 48.33 | a | 49.67 | a | 56.23 | 57.37 | 64.28 | b | 77.83 | 79.39 | 83.48 | b | 77.24 | a | 67.00 | c | 50.03 | 38.32 | c | 62.43 | ||||||
2016 | 43.90 | 49.74 | b | 53.10 | 59.50 | 66.42 | 81.30 | 82.32 | 82.26 | 71.79 | a | 65.03 | 53.00 | 45.13 | 62.79 | |||||||||||
2017 | 45.32 | 49.71 | 53.80 | a | 57.57 | 66.00 | 76.97 | a | 84.71 | 82.29 | 74.30 | 62.74 | 53.62 | a | 46.52 | 62.80 | ||||||||||
2018 | 46.81 | 44.61 | 51.23 | 61.70 | 66.84 | 75.87 | 84.03 | 84.48 | 74.79 | b | 62.71 | 51.21 | a | 45.61 | 62.49 | |||||||||||
2019 | 45.81 | 40.50 | 50.93 | a | 61.31 | a | 63.67 | d | 75.62 | a | 81.81 | 81.35 | 73.50 | b | 56.80 | a | 51.07 | a | 45.39 | 60.65 | ||||||
2020 | 42.56 | d | 45.43 | a | 50.12 | e | 58.12 | e | 68.07 | d | 73.67 | c | 81.00 | a | 83.06 | 73.66 | a | 61.31 | b | 49.86 | a | 43.42 | 60.86 | |||
2021 | 44.45 | 45.81 | a | 47.73 | a | 60.10 | 67.37 | a | 80.43 | 86.63 | a | 83.20 | a | 75.31 | a | 58.23 | a | 53.77 | d | 43.33 | a | 62.20 | ||||
2022 | 44.70 | a | 46.46 | d | 52.43 | a | 59.60 | 67.75 | c | 78.75 | b | 84.07 | a | 83.76 | b | 77.80 | 64.61 | 47.63 | 41.62 | b | 62.43 | |||||
2023 | 43.35 | 44.19 | b | 47.32 | c | 56.36 | b | 67.77 | 71.54 | b | 85.10 | 80.57 | a | 72.80 | 64.10 | 52.00 | b | 46.53 | a | 60.97 | ||||||
2024 | 42.26 | 47.41 | 49.16 | 54.50 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.28 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.80 | 45.93 | 50.61 | 57.20 | 65.91 | 74.34 | 81.74 | 80.90 | 73.37 | 61.14 | 50.47 | 43.28 | 61.08 | |||||||||||||
S.D. | 2.56 | 2.54 | 2.70 | 2.56 | 3.20 | 3.20 | 2.90 | 2.76 | 2.41 | 2.79 | 2.59 | 2.50 | 1.21 | |||||||||||||
SKEW | 0.11 | -0.24 | -0.06 | -0.48 | -0.18 | 0.01 | -0.48 | -0.77 | -0.42 | 0.27 | -0.70 | -0.75 | -0.35 | |||||||||||||
MAX | 49.65 | 50.21 | 56.35 | 61.70 | 72.07 | 81.30 | 86.63 | 85.17 | 77.80 | 67.34 | 54.40 | 47.17 | 62.80 | |||||||||||||
MIN | 38.65 | 40.50 | 43.61 | 51.46 | 59.21 | 67.74 | 74.29 | 73.70 | 67.50 | 56.15 | 42.97 | 36.35 | 58.42 | |||||||||||||
YRS | 34 | 32 | 34 | 35 | 33 | 34 | 36 | 34 | 33 | 33 | 32 | 33 | 24 |