YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | 65.27 | 75.65 | ----- | z | 81.77 | 75.28 | 66.10 | 55.22 | 51.90 | 67.31 | e | |||||||
1981 | 50.50 | 52.48 | 54.61 | 65.35 | 71.06 | 83.37 | 83.84 | 84.89 | 77.62 | 60.95 | 56.50 | a | 50.32 | a | 65.96 | |||||||||||
1982 | 45.03 | 53.19 | b | 53.10 | a | 59.80 | 70.77 | a | 75.03 | a | 81.95 | 83.00 | 74.43 | a | 62.48 | a | 50.50 | b | 44.65 | 62.83 | ||||||
1983 | 47.48 | 51.48 | b | 55.30 | c | 55.79 | b | 69.45 | 76.13 | g | 80.11 | c | 81.35 | 80.14 | b | 66.71 | 54.98 | g | 48.32 | i | 65.31 | c | ||||
1984 | 48.92 | a | 50.06 | b | 56.82 | 59.18 | 75.00 | 77.60 | 85.77 | a | 84.58 | m | 78.46 | e | 61.48 | b | 50.43 | 42.03 | a | 62.34 | a | |||||
1985 | 44.31 | 48.43 | a | 51.82 | a | 64.95 | a | ----- | z | 79.42 | f | 85.77 | 81.32 | 71.23 | b | 64.57 | a | 50.10 | 45.32 | a | 60.78 | b | ||||
1986 | 50.62 | a | 51.39 | a | 58.98 | b | 65.50 | k | 69.98 | b | 79.97 | 78.77 | a | 84.03 | a | 69.68 | b | 64.10 | a | 56.45 | a | 45.98 | a | 64.54 | a | |
1987 | 44.65 | 51.11 | 55.19 | b | 68.10 | a | 68.14 | b | 80.82 | 79.74 | 82.56 | 76.75 | b | 69.40 | a | 52.52 | 43.85 | 64.40 | ||||||||
1988 | 45.74 | 52.34 | 57.53 | a | 61.36 | b | 68.88 | a | 77.83 | a | 86.02 | b | 82.71 | 76.43 | a | 73.32 | c | 56.41 | c | 46.02 | a | 65.38 | ||||
1989 | 45.65 | a | 48.32 | 60.39 | d | 69.38 | f | 70.92 | 78.90 | a | 86.08 | 80.40 | b | 76.10 | a | 67.65 | n | 56.53 | a | 47.86 | i | 67.03 | c | |||
1990 | ----- | z | 48.89 | a | 59.42 | a | 65.53 | a | 69.32 | a | 80.86 | a | 86.86 | b | 82.53 | a | 78.45 | b | 68.02 | d | 55.37 | 41.62 | c | 66.99 | a | |
1991 | 46.05 | b | 57.94 | a | 50.75 | a | 61.16 | e | 63.25 | c | 74.24 | m | 84.55 | a | 83.11 | c | 79.69 | a | 72.31 | d | 57.63 | c | 47.20 | c | 63.97 | a |
1992 | ----- | z | 56.64 | o | 56.00 | o | 66.11 | c | 74.95 | a | 76.68 | b | 82.47 | b | 85.79 | c | 78.32 | b | 68.23 | e | 54.23 | b | 45.81 | d | 70.29 | c |
1993 | 45.69 | g | 50.67 | d | 60.41 | c | 65.73 | d | 71.98 | e | 77.74 | c | 82.33 | d | 83.16 | i | 78.96 | g | 68.36 | c | 53.60 | d | 47.42 | f | 66.35 | d |
1994 | 50.33 | g | 50.57 | g | ----- | z | 67.61 | h | 70.04 | d | 83.17 | c | 88.74 | f | 86.94 | d | 79.19 | a | 65.94 | 48.59 | a | 45.08 | a | 68.42 | e | |
1995 | 47.25 | c | 60.87 | e | 58.17 | a | 63.35 | d | 68.57 | a | 78.91 | a | 84.73 | 85.68 | a | 81.42 | 71.18 | c | 63.67 | 52.15 | a | 67.99 | ||||
1996 | 53.00 | b | 55.36 | 58.70 | d | 66.03 | 73.80 | f | 81.08 | 89.45 | a | 86.91 | b | 78.02 | c | 65.24 | b | 57.59 | a | 49.22 | a | 67.33 | a | |||
1997 | 47.90 | a | 52.54 | a | 62.40 | b | 63.74 | c | 77.15 | a | 80.28 | a | 83.20 | c | 84.43 | b | 79.00 | b | 65.80 | a | 56.57 | c | 46.15 | a | 66.60 | |
1998 | 49.78 | a | 48.12 | c | 55.16 | 57.77 | j | 63.79 | e | 75.62 | q | 86.48 | f | 88.17 | g | 75.56 | e | 64.31 | 54.28 | a | 46.43 | p | 58.71 | e | ||
1999 | 48.56 | g | 49.54 | d | 55.26 | b | 57.79 | b | 70.33 | b | 79.03 | a | 86.78 | a | 83.02 | 78.92 | 69.61 | c | 56.35 | 48.10 | 66.79 | a | ||||
2000 | ----- | z | 52.47 | 57.59 | d | 67.83 | 73.97 | 81.80 | b | 84.60 | 84.84 | b | 78.19 | a | 66.56 | 52.83 | i | ----- | z | 71.98 | c | |||||
2001 | 45.20 | d | 46.54 | c | 58.92 | 64.39 | l | ----- | z | ----- | z | ----- | z | 87.50 | h | 80.80 | 70.76 | b | 57.00 | 45.35 | 57.80 | e | ||||
2002 | 46.15 | 52.80 | a | 54.86 | c | 65.53 | a | 71.85 | 82.75 | 88.79 | 85.35 | a | 78.77 | 64.93 | a | 55.55 | 46.31 | 66.14 | ||||||||
2003 | 52.68 | 49.41 | 57.23 | a | 57.70 | 72.18 | a | 82.05 | 89.50 | b | 86.24 | 81.53 | 72.27 | a | 50.47 | 45.97 | 66.44 | |||||||||
2004 | 46.32 | 47.41 | 62.39 | 64.91 | a | 73.29 | 81.71 | a | 86.84 | 84.67 | e | 75.07 | h | 63.79 | 50.93 | a | 46.45 | 64.43 | a | |||||||
2005 | 47.88 | a | 50.11 | a | 55.66 | 59.38 | d | 72.58 | 77.38 | a | 88.79 | 84.87 | a | 73.87 | 64.92 | a | 55.97 | a | 48.37 | a | 64.98 | |||||
2006 | 47.68 | 50.81 | a | 50.84 | 60.25 | b | 75.02 | 84.43 | a | 90.12 | a | 83.61 | 76.87 | 64.02 | a | 56.66 | a | 45.00 | 65.44 | |||||||
2007 | 44.00 | a | 51.70 | 61.89 | 66.17 | 73.71 | 82.47 | 88.65 | a | 87.38 | a | 75.57 | 64.77 | a | 57.43 | 43.87 | 66.47 | |||||||||
2008 | 44.35 | 51.21 | c | 57.18 | c | 62.69 | c | 69.77 | c | 82.48 | 87.93 | a | 87.23 | a | 79.95 | 66.95 | 57.40 | 44.15 | 65.94 | |||||||
2009 | 48.79 | 48.93 | 55.44 | 61.90 | 77.60 | 75.92 | 89.27 | 84.15 | 80.48 | 63.32 | 54.07 | 44.02 | 65.32 | |||||||||||||
2010 | 46.60 | 50.41 | 54.79 | 58.92 | 65.88 | b | 80.75 | 88.15 | 84.10 | 78.10 | 66.44 | 52.03 | 48.94 | 64.59 | ||||||||||||
2011 | 46.29 | 46.55 | 55.26 | 62.62 | 65.47 | 77.32 | 84.94 | 85.55 | 79.37 | 66.77 | 50.72 | 43.89 | 63.73 | |||||||||||||
2012 | 48.69 | 50.62 | 55.81 | 63.12 | 73.61 | 80.58 | 84.84 | 88.34 | 81.33 | 67.87 | 56.25 | 47.37 | 66.54 | |||||||||||||
2013 | 42.79 | 48.68 | 60.81 | 66.53 | 72.06 | 83.45 | 89.02 | 84.24 | 78.20 | 62.69 | 54.20 | 45.40 | 65.67 | |||||||||||||
2014 | 51.15 | 55.61 | 59.08 | 65.37 | 73.11 | 82.67 | 88.08 | 83.76 | 80.50 | 69.94 | 56.50 | 48.39 | 67.85 | |||||||||||||
2015 | 48.98 | 57.18 | 61.97 | 63.79 | a | 69.22 | a | 84.52 | 83.06 | 87.61 | 80.30 | 69.92 | 51.00 | 44.21 | 66.81 | |||||||||||
2016 | 46.85 | 54.09 | 59.79 | 64.82 | 69.97 | 85.88 | 88.60 | 86.63 | 76.55 | 67.47 | 56.00 | 47.47 | 67.01 | |||||||||||||
2017 | 45.93 | a | 53.55 | 59.35 | 63.97 | 71.61 | 83.88 | 90.19 | 87.10 | 76.32 | 66.76 | 58.85 | 48.53 | 67.17 | ||||||||||||
2018 | 51.06 | 50.70 | 55.69 | 66.83 | 71.92 | 82.13 | 91.21 | 87.48 | 80.10 | f | 65.66 | c | 55.41 | a | 47.08 | 65.93 | a | |||||||||
2019 | 47.44 | 45.04 | 55.26 | 66.45 | 64.39 | 81.37 | 86.47 | 86.71 | 78.05 | 63.74 | b | 54.53 | 44.55 | a | 64.50 | |||||||||||
2020 | 47.82 | 52.38 | 53.58 | 61.58 | 74.02 | 79.98 | 86.13 | 88.77 | 80.87 | 71.24 | 54.73 | 47.02 | 66.51 | |||||||||||||
2021 | 47.95 | 52.02 | a | 52.85 | h | 64.52 | h | 74.20 | a | 85.95 | 89.60 | 86.26 | 80.70 | 63.58 | a | 59.32 | b | 47.55 | 68.71 | b | ||||||
2022 | 47.00 | 49.20 | a | 58.18 | 64.84 | a | 72.50 | 82.83 | c | 88.37 | 88.53 | 81.93 | 69.56 | 50.02 | a | 45.92 | 66.57 | |||||||||
2023 | 45.15 | 45.69 | a | 50.18 | c | 62.93 | 70.65 | 75.18 | 90.48 | 84.33 | a | 76.80 | 66.37 | 53.60 | 48.95 | 64.19 | ||||||||||
2024 | 48.00 | 49.90 | 54.12 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.67 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.41 | 51.09 | 56.83 | 63.30 | 70.91 | 80.63 | 86.30 | 84.96 | 78.04 | 66.71 | 54.79 | 46.41 | 65.80 | |||||||||||||
S.D. | 2.39 | 3.22 | 3.19 | 3.08 | 3.42 | 2.93 | 3.13 | 2.14 | 2.69 | 3.04 | 3.05 | 2.36 | 1.27 | |||||||||||||
SKEW | 0.47 | 0.73 | -0.12 | -0.61 | -0.44 | -0.24 | -0.60 | -0.12 | -1.03 | 0.30 | 0.08 | 0.41 | -0.42 | |||||||||||||
MAX | 53.00 | 60.87 | 62.40 | 68.10 | 77.60 | 85.95 | 91.21 | 88.77 | 81.93 | 73.32 | 63.67 | 52.15 | 67.99 | |||||||||||||
MIN | 42.79 | 45.04 | 50.18 | 55.79 | 63.25 | 75.03 | 78.77 | 80.40 | 69.68 | 60.95 | 48.59 | 41.63 | 62.83 | |||||||||||||
YRS | 38 | 42 | 41 | 37 | 41 | 39 | 40 | 40 | 41 | 43 | 42 | 39 | 25 |