YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.05 | j | 45.62 | a | 39.15 | d | 42.38 | j |
1979 | 30.79 | g | 47.04 | e | 59.97 | 61.63 | 73.60 | a | 83.90 | a | 91.42 | 87.70 | a | 85.87 | 68.26 | 47.90 | 52.69 | r | 70.73 | b | ||||||
1980 | 42.70 | k | 51.38 | h | 54.03 | b | 68.03 | 71.00 | 74.73 | 88.97 | 84.93 | a | 81.57 | 69.73 | a | 54.83 | a | 47.94 | o | 71.98 | c | |||||
1981 | 47.67 | a | 51.86 | g | 58.00 | d | 64.75 | b | 68.73 | a | 79.03 | a | 88.23 | 94.10 | 81.60 | 64.26 | 56.40 | j | 46.27 | i | 71.82 | c | ||||
1982 | 43.27 | a | 48.33 | d | 54.83 | g | 60.93 | 71.57 | a | 80.68 | b | 86.00 | 90.10 | a | 76.96 | b | 63.04 | e | 49.62 | f | 43.38 | e | 66.43 | b | ||
1983 | 51.48 | d | 52.54 | d | 56.39 | 61.33 | 72.54 | c | 79.35 | d | 87.23 | a | 92.86 | b | 78.54 | b | 68.94 | 53.72 | l | 38.53 | p | 70.12 | b | |||
1984 | 44.40 | p | 50.26 | j | 57.76 | f | 59.14 | b | 69.80 | a | 76.54 | b | 93.46 | c | 93.30 | a | 77.07 | a | 61.27 | a | 50.07 | p | 37.91 | t | 75.80 | e |
1985 | 39.06 | n | 48.27 | m | 54.06 | o | 69.03 | a | 74.90 | a | 86.10 | a | 98.79 | b | 88.48 | 72.87 | 66.57 | c | 35.23 | q | 36.62 | r | 79.54 | e | ||
1986 | 51.71 | n | 52.29 | n | 63.30 | d | 64.66 | a | 75.65 | e | 89.56 | e | 88.77 | e | 96.77 | a | 71.96 | b | 71.42 | e | 52.63 | k | 43.45 | k | 77.76 | d |
1987 | 42.79 | l | 52.20 | h | 59.59 | n | 74.04 | e | 76.50 | a | 86.90 | a | 85.52 | 88.87 | 87.17 | a | 76.78 | d | 56.53 | m | 42.00 | f | 82.25 | e | ||
1988 | 41.23 | 55.28 | 59.26 | 66.10 | 73.42 | 81.60 | 93.19 | 90.77 | 82.13 | 78.87 | 52.30 | 44.10 | 68.19 | |||||||||||||
1989 | 43.87 | 38.68 | 55.10 | 66.80 | 69.10 | 84.60 | 91.52 | 85.52 | 81.77 | 66.55 | 56.82 | b | 48.77 | i | 67.30 | a | ||||||||||
1990 | 47.39 | c | 50.14 | 60.03 | 72.60 | 70.23 | 81.17 | 94.55 | 89.26 | 87.67 | 67.61 | 55.42 | f | 37.60 | a | 68.93 | a | |||||||||
1991 | 43.16 | 59.24 | g | 54.13 | 61.47 | 65.48 | 74.43 | 90.97 | 93.58 | 86.00 | 71.10 | 52.46 | b | 50.13 | h | 69.28 | b | |||||||||
1992 | ----- | z | 58.38 | e | 63.45 | b | ----- | z | 81.65 | 88.21 | a | 87.03 | 92.52 | 82.43 | b | 72.17 | a | 50.86 | b | 42.00 | f | 75.19 | c | |||
1993 | 38.29 | j | 40.47 | i | 60.10 | 60.48 | e | 78.32 | c | 79.10 | 79.06 | 86.60 | a | 84.24 | a | 70.39 | c | 49.71 | f | 50.36 | q | 74.79 | d | |||
1994 | 52.00 | l | 49.05 | h | 64.46 | c | 66.56 | e | 73.41 | d | 81.00 | 96.07 | d | 92.96 | d | 88.04 | g | 68.20 | f | 49.09 | g | 48.64 | q | 79.08 | f | |
1995 | 49.79 | l | 58.35 | k | 57.82 | c | 61.15 | d | 71.73 | e | ----- | z | 90.48 | 88.77 | 86.52 | a | 67.69 | b | 55.44 | e | 52.09 | t | 72.45 | d | ||
1996 | 48.42 | l | 50.57 | a | 59.07 | a | 65.28 | a | 69.96 | c | 82.33 | 96.40 | a | 93.83 | a | 80.67 | c | 69.45 | b | 56.42 | d | 48.30 | d | 70.21 | a | |
1997 | 44.85 | d | 51.04 | 59.79 | c | 62.64 | b | 79.06 | 80.27 | 91.97 | 91.77 | 82.07 | 67.60 | a | 55.88 | e | 48.05 | j | 69.72 | a | ||||||
1998 | 50.56 | m | 52.84 | i | 58.13 | a | 63.55 | a | 66.32 | 78.43 | 96.32 | 94.71 | 86.37 | 66.68 | 53.80 | e | 47.86 | j | 73.81 | c | ||||||
1999 | 50.55 | k | 50.00 | j | 56.42 | 61.40 | 69.43 | a | ----- | z | 93.07 | a | 91.90 | b | 82.77 | 72.94 | 60.77 | 46.75 | g | 73.59 | d | |||||
2000 | 46.50 | k | 53.50 | e | 56.93 | c | 70.07 | b | 73.45 | b | 85.07 | 91.47 | a | 93.50 | c | 79.07 | a | 66.86 | c | 45.50 | b | 43.79 | c | 69.02 | a | |
2001 | 44.87 | a | 49.96 | d | 59.79 | b | 59.57 | 79.67 | a | 79.83 | 88.68 | 94.31 | b | 85.43 | 68.90 | 56.45 | a | 46.19 | j | 69.77 | a | |||||
2002 | 47.63 | l | 53.50 | h | 54.50 | c | 65.86 | a | 72.84 | f | 85.52 | c | 97.84 | 88.06 | 83.64 | b | 64.89 | c | 57.00 | d | 48.00 | j | 74.66 | d | ||
2003 | 50.45 | k | 49.68 | i | 59.47 | a | ----- | z | 71.17 | a | 86.83 | a | 97.97 | a | 93.97 | a | 85.82 | b | 72.22 | d | ----- | z | 48.06 | m | 81.06 | e |
2004 | 44.40 | k | 50.94 | k | 63.77 | 66.93 | 70.54 | c | 81.71 | b | 93.57 | a | 92.00 | a | 79.41 | c | 65.78 | d | 52.18 | b | 48.33 | a | 71.42 | b | ||
2005 | 46.19 | d | 51.11 | 59.87 | 62.40 | 71.71 | 77.33 | 94.48 | 94.61 | 80.57 | 67.29 | 49.93 | a | 43.11 | c | 66.55 | ||||||||||
2006 | 49.93 | a | 48.96 | b | 52.39 | 62.21 | b | 74.79 | b | 82.37 | 98.23 | e | 89.66 | b | 81.82 | b | 66.35 | e | 55.15 | c | 47.69 | e | 67.46 | |||
2007 | 43.28 | f | 49.22 | e | 59.81 | e | 62.24 | i | 78.14 | j | 82.91 | g | 96.59 | d | 91.24 | f | 80.46 | f | 65.36 | f | 55.48 | g | 44.35 | e | 62.49 | h |
2008 | 41.44 | f | 53.17 | f | 53.86 | c | 59.60 | e | 72.36 | f | 78.40 | j | 93.30 | k | 90.90 | k | 82.92 | e | 71.83 | m | 58.61 | g | 42.59 | b | 59.74 | h |
2009 | 43.93 | d | 50.42 | b | 51.97 | b | 62.39 | b | 74.50 | e | 81.56 | c | 94.43 | c | 92.56 | f | 86.43 | g | 62.61 | h | 54.33 | i | 42.29 | n | 65.60 | e |
2010 | 49.36 | i | 52.71 | g | 58.56 | f | 60.30 | c | 65.31 | e | 76.60 | e | 91.00 | b | 90.03 | a | 80.07 | b | 69.74 | h | 51.38 | i | 46.50 | k | 77.22 | f |
2011 | 46.64 | c | 47.56 | c | 53.84 | 58.30 | g | 65.59 | i | 77.00 | e | 87.36 | i | 93.27 | a | 86.59 | c | 66.96 | d | 53.38 | f | 45.89 | m | 67.41 | e | |
2012 | 50.14 | b | 50.48 | f | 57.18 | i | 67.25 | b | 73.14 | c | 77.54 | b | 92.82 | c | 95.89 | c | 87.36 | e | 68.62 | j | 54.76 | m | 47.20 | k | 77.73 | e |
2013 | 43.73 | i | 50.25 | d | 58.07 | c | 64.33 | f | 74.71 | g | 79.68 | b | 97.93 | d | 92.89 | d | 81.54 | d | 64.07 | q | 52.52 | e | 41.07 | d | 69.24 | d |
2014 | 49.18 | c | 44.56 | a | 60.28 | b | 64.14 | a | 74.69 | e | 81.58 | d | 98.11 | c | 92.29 | c | 85.12 | f | 74.86 | j | 50.62 | i | 48.62 | e | 68.16 | c |
2015 | 50.56 | f | 57.07 | a | 63.74 | 65.21 | a | 74.90 | 91.20 | 93.20 | a | 93.67 | a | 80.90 | a | 73.73 | a | 50.89 | b | 46.66 | b | 71.92 | a | |||
2016 | 46.67 | j | 59.45 | i | 58.04 | c | 71.83 | g | 75.03 | 84.70 | 90.31 | b | 92.23 | a | 79.43 | b | 65.82 | c | 60.14 | b | 39.43 | c | 71.68 | c | ||
2017 | 36.73 | e | 53.11 | i | 58.56 | d | 62.36 | b | 74.31 | o | 84.50 | d | 99.07 | p | 96.07 | c | 83.15 | c | 65.56 | d | 58.52 | g | 38.81 | o | 69.56 | e |
2018 | ----- | z | ----- | z | 57.04 | d | 64.64 | h | 77.68 | c | 80.65 | d | 96.10 | a | 92.65 | 79.83 | 67.04 | c | 56.32 | k | 46.85 | r | 78.71 | e | ||
2019 | ----- | z | 42.79 | i | 53.31 | b | 64.48 | g | 74.32 | f | 82.60 | e | 89.96 | f | 93.71 | g | 78.79 | f | 63.35 | e | 55.12 | f | 49.48 | j | 66.42 | i |
2020 | 50.80 | k | 57.11 | j | 58.41 | i | 75.00 | x | 75.05 | i | 84.83 | g | 92.74 | d | 94.46 | e | 85.12 | d | 74.17 | h | 56.38 | i | 49.63 | l | 90.77 | i |
2021 | 50.19 | o | 50.69 | l | 59.53 | l | 70.04 | g | 75.44 | d | 90.60 | 98.84 | 92.16 | 82.11 | b | 70.00 | e | 60.45 | j | 49.10 | j | 84.86 | f | |||
2022 | 49.36 | i | 54.96 | e | 59.79 | b | 58.37 | 68.04 | c | 79.68 | b | 95.11 | d | 97.65 | 87.17 | f | 74.60 | a | 47.29 | b | 43.15 | d | 67.86 | b | ||
2023 | 46.79 | c | 49.04 | a | 48.30 | a | 61.54 | b | 72.96 | c | 83.54 | f | 96.03 | a | 92.20 | u | ----- | z | ----- | z | ----- | z | ----- | z | 62.44 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.72 | 50.41 | 57.91 | 63.99 | 72.85 | 81.91 | 92.79 | 91.97 | 82.13 | 68.59 | 53.19 | 43.83 | 67.40 | |||||||||||||
S.D. | 3.65 | 4.29 | 3.66 | 3.76 | 3.83 | 4.17 | 4.30 | 2.98 | 3.70 | 3.84 | 4.24 | 3.43 | 0.82 | |||||||||||||
SKEW | -0.61 | -0.55 | -0.34 | 0.83 | 0.08 | 0.40 | -0.81 | -0.51 | -0.72 | 0.66 | -0.20 | -0.14 | -0.14 | |||||||||||||
MAX | 51.48 | 58.38 | 64.46 | 74.04 | 81.65 | 91.20 | 98.84 | 97.65 | 87.67 | 78.87 | 60.77 | 48.62 | 68.19 | |||||||||||||
MIN | 36.73 | 38.68 | 48.30 | 58.37 | 65.31 | 74.43 | 79.06 | 84.93 | 71.96 | 61.27 | 45.50 | 37.60 | 66.55 | |||||||||||||
YRS | 17 | 21 | 37 | 35 | 37 | 39 | 41 | 40 | 38 | 35 | 22 | 16 | 3 |