YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.31 | o | 73.33 | 60.33 | a | 49.20 | 36.31 | b | 54.79 | h | ||
1972 | 42.17 | a | 49.28 | 60.70 | a | 64.60 | 72.57 | a | 80.62 | a | 86.55 | 79.65 | 73.37 | 61.08 | f | 40.53 | 39.67 | j | 65.00 | b | ||||||
1973 | 36.61 | 40.86 | ----- | z | 53.87 | 67.23 | a | 78.73 | 82.71 | 83.10 | 73.72 | a | 68.45 | b | 50.00 | f | 42.75 | c | 62.80 | b | ||||||
1974 | 37.10 | 41.64 | 55.97 | 61.24 | e | 76.87 | p | 84.87 | 82.67 | d | 81.23 | 74.48 | a | 63.66 | b | 50.41 | a | 38.10 | 61.03 | a | ||||||
1975 | 36.77 | 38.54 | 46.13 | 55.93 | b | 67.77 | 77.21 | k | 83.81 | 83.19 | 73.41 | c | 67.39 | 51.41 | a | 43.76 | b | 58.92 | a | |||||||
1976 | 41.95 | i | 51.39 | a | 52.87 | a | 60.69 | a | 71.76 | n | 82.04 | b | 85.97 | a | 81.74 | 73.57 | b | 61.90 | a | 53.83 | a | 45.35 | e | 64.93 | b | |
1977 | 36.42 | 47.64 | f | 51.48 | d | 64.24 | a | 70.52 | b | 84.10 | 83.31 | e | 83.03 | 75.41 | c | 67.64 | f | 54.38 | i | 45.85 | d | 66.04 | c | |||
1978 | 39.11 | c | 41.77 | b | 54.41 | b | 63.67 | c | 66.80 | a | 82.31 | a | 88.08 | g | 83.73 | a | 77.63 | 69.00 | b | 49.38 | a | 36.35 | e | 60.38 | a | |
1979 | 33.22 | d | 41.67 | a | 48.60 | a | 59.69 | n | 66.97 | a | 79.41 | a | 87.58 | e | 82.55 | 81.70 | 69.94 | 44.30 | 46.16 | f | 63.59 | b | ||||
1980 | 40.37 | d | 44.78 | f | 48.27 | a | 53.83 | r | 68.07 | a | 84.39 | b | 89.45 | b | 83.26 | 78.33 | 61.71 | j | 53.56 | c | 50.96 | c | 66.30 | c | ||
1981 | 48.35 | 49.21 | 48.13 | 66.04 | b | 67.76 | b | 85.07 | 84.08 | f | 82.57 | a | 76.48 | c | 62.13 | a | 55.83 | a | 46.05 | k | 64.16 | b | ||||
1982 | 37.19 | d | 41.77 | b | 48.87 | a | 56.38 | v | 67.97 | 80.31 | a | 84.97 | a | 81.59 | b | 73.38 | a | 62.93 | a | 48.87 | g | 39.28 | b | 61.82 | b | |
1983 | 40.94 | 41.75 | d | 48.71 | g | 52.86 | b | 66.76 | b | 76.83 | 82.80 | a | 81.29 | 78.48 | c | 64.37 | a | 46.50 | d | 38.50 | c | 61.01 | a | |||
1984 | 39.57 | a | 43.28 | 50.52 | d | 58.07 | 77.50 | e | 78.41 | a | 85.83 | b | 81.45 | 78.12 | d | 49.05 | k | 49.33 | c | 42.19 | 62.21 | a | ||||
1985 | 38.48 | 38.67 | g | 50.10 | a | 62.15 | c | 68.87 | a | 84.17 | 85.40 | a | 86.39 | m | 72.52 | c | 64.44 | f | 48.71 | b | 42.96 | c | 61.48 | c | ||
1986 | 51.07 | d | 47.12 | b | 58.06 | 60.50 | 70.30 | d | 81.82 | b | 83.10 | 84.67 | a | 73.11 | b | 62.58 | g | 49.33 | c | 44.40 | k | 65.91 | b | |||
1987 | 40.58 | 42.57 | 49.92 | g | 64.24 | e | 67.06 | 82.60 | 86.23 | 81.74 | 78.00 | r | 69.00 | d | 48.36 | e | 42.65 | k | 64.71 | c | ||||||
1988 | 34.91 | i | 47.83 | w | 51.41 | b | 60.93 | 68.94 | 79.10 | 83.58 | 78.03 | 71.17 | 66.74 | 47.97 | 40.23 | a | 64.81 | b | ||||||||
1989 | 37.42 | 42.46 | 59.55 | 67.17 | 74.65 | 80.73 | 84.77 | 80.32 | 77.10 | 62.39 | 52.40 | 41.55 | 63.38 | |||||||||||||
1990 | 38.61 | 42.29 | 51.55 | 60.83 | 68.20 | f | 84.88 | f | 81.74 | l | 77.07 | b | 75.24 | a | 64.00 | c | 51.12 | m | 36.10 | b | 55.71 | d | ||||
1991 | 36.32 | 47.82 | 47.97 | 62.70 | 71.39 | 78.70 | 82.84 | 81.68 | 73.71 | f | 66.84 | 45.62 | a | 40.77 | 60.24 | a | ||||||||||
1992 | 39.00 | a | 43.28 | 52.77 | 65.90 | 68.91 | h | 78.37 | 81.77 | 80.06 | 76.53 | 66.97 | 43.10 | 39.03 | a | 60.62 | a | |||||||||
1993 | 40.61 | ----- | z | ----- | z | ----- | z | ----- | z | 80.30 | 86.55 | 80.35 | 75.34 | a | 62.71 | 46.47 | 43.19 | 64.44 | d | |||||||
1994 | 43.13 | a | 45.50 | b | 55.40 | a | 63.18 | b | 70.55 | 84.87 | 87.07 | a | 85.13 | 73.84 | k | 61.48 | 48.29 | b | 43.20 | f | 64.46 | b | ||||
1995 | 39.42 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.42 | 87.45 | 77.47 | 68.29 | 56.57 | 46.13 | 65.82 | e | |||||||
1996 | 42.58 | 50.18 | a | 53.61 | 65.40 | e | 78.72 | b | 84.47 | 87.33 | d | 84.34 | b | 71.48 | a | 71.07 | q | 51.39 | g | 42.42 | 66.05 | b | ||||
1997 | 40.35 | 44.77 | b | 59.07 | a | 58.62 | d | 70.24 | b | 80.36 | b | 86.74 | d | 82.17 | a | 79.00 | a | 64.48 | b | 49.73 | 40.34 | b | 62.99 | |||
1998 | 42.80 | a | 40.40 | c | 50.72 | b | 54.30 | g | 72.55 | b | 81.03 | a | 85.83 | a | 83.11 | d | 81.00 | a | 62.97 | b | 53.04 | e | 46.13 | a | 63.60 | a |
1999 | 47.30 | a | 51.11 | 58.35 | 57.43 | 68.00 | b | 80.62 | a | 82.20 | a | 78.40 | a | 75.80 | 70.77 | 61.56 | e | 45.39 | 64.74 | |||||||
2000 | 46.45 | 50.66 | 51.87 | 64.48 | c | 76.16 | 85.69 | a | 89.68 | 87.00 | 81.07 | 62.90 | b | 43.38 | a | 44.96 | c | 65.36 | ||||||||
2001 | 41.33 | a | 46.21 | 53.14 | c | 63.00 | a | 75.27 | a | 85.39 | b | 87.48 | 83.93 | b | 81.67 | 69.73 | e | 54.39 | b | 42.07 | b | 65.30 | ||||
2002 | 40.64 | f | 45.68 | 53.42 | 67.70 | 74.71 | c | 88.88 | d | 88.42 | 85.52 | d | 74.85 | c | 62.68 | 53.07 | b | 42.77 | 67.06 | a | ||||||
2003 | 50.60 | a | 45.26 | a | 52.47 | a | 63.43 | 74.54 | c | 84.17 | l | 93.33 | a | 85.54 | c | 78.27 | d | 71.93 | a | 51.41 | a | 47.26 | d | 64.91 | a | |
2004 | 43.38 | b | 43.00 | 63.04 | d | 60.24 | a | 74.37 | a | 85.00 | c | 87.34 | b | 83.59 | b | 74.79 | b | 61.21 | b | 46.59 | c | 41.32 | 63.66 | |||
2005 | 44.77 | a | 43.46 | b | 49.42 | 60.10 | 69.97 | 80.19 | c | 89.67 | a | 80.52 | b | 77.20 | 63.90 | 54.24 | a | 42.71 | 63.01 | |||||||
2006 | 44.70 | a | 48.37 | a | 49.90 | 64.18 | b | 75.81 | 85.47 | 85.67 | g | 78.19 | 67.53 | 60.40 | a | 53.38 | a | 40.03 | a | 60.72 | a | |||||
2007 | 36.68 | 43.00 | a | 54.14 | b | ----- | z | 67.04 | d | 81.19 | c | 84.79 | b | 83.81 | 76.52 | c | 65.48 | b | 56.27 | 36.20 | a | 62.28 | a | |||
2008 | 33.26 | 39.21 | 52.13 | 60.86 | b | 68.62 | e | 82.73 | 83.90 | a | 84.67 | d | 77.03 | 66.59 | b | 53.56 | c | 39.89 | d | 61.87 | ||||||
2009 | 41.07 | b | 48.00 | d | 52.10 | b | 59.07 | b | ----- | z | 76.74 | c | 88.14 | b | 86.16 | f | 76.93 | a | 65.26 | l | ----- | z | 32.07 | p | 63.15 | e |
2010 | 36.57 | a | 37.75 | d | 48.93 | d | 60.79 | a | 70.71 | 86.89 | c | 88.68 | c | 82.36 | c | 79.52 | a | 64.39 | c | 46.79 | a | 41.30 | h | 63.94 | a | |
2011 | 35.82 | c | 40.00 | c | 56.77 | a | 61.96 | d | 68.20 | a | 85.67 | f | 88.71 | g | 87.27 | a | 73.00 | e | 61.41 | b | 48.11 | b | 36.54 | c | 56.91 | b |
2012 | 41.86 | c | 41.28 | 56.29 | g | 74.62 | v | 77.00 | c | 91.08 | e | 86.87 | a | 89.27 | a | 82.47 | 71.75 | c | ----- | z | 45.83 | b | 69.71 | c | ||
2013 | 41.41 | d | ----- | z | ----- | z | 63.15 | c | 73.31 | e | ----- | z | 86.79 | b | 81.31 | b | 73.42 | d | 59.21 | c | 48.75 | b | 35.07 | d | 62.49 | c |
2014 | 41.57 | a | 49.26 | e | 54.26 | d | 61.35 | d | 71.65 | e | ----- | z | 85.56 | f | 80.93 | d | 80.54 | b | 66.67 | d | 49.69 | a | 39.50 | c | 59.54 | b |
2015 | 39.90 | a | 47.75 | d | 58.07 | b | 60.33 | 63.37 | a | 82.38 | d | 80.50 | a | 83.53 | a | 78.59 | a | 64.83 | a | 48.11 | b | 36.75 | c | 62.01 | ||
2016 | 35.10 | a | 27.80 | x | ----- | z | ----- | z | 67.46 | c | 86.96 | b | 88.71 | c | 78.10 | a | 75.72 | e | 68.77 | 52.21 | a | 40.81 | 65.98 | c | ||
2017 | 37.77 | e | 46.50 | b | 57.88 | e | 58.38 | a | 67.89 | c | 86.72 | e | 83.75 | g | 82.95 | i | 75.79 | a | 64.25 | g | 57.93 | c | 46.68 | c | 59.50 | c |
2018 | 44.11 | l | 42.95 | f | 51.23 | a | 65.03 | a | 75.33 | a | 86.00 | e | 87.45 | b | 84.68 | c | 80.22 | g | 59.47 | a | 47.83 | 38.28 | b | 66.14 | c | |
2019 | 38.46 | e | 39.37 | a | 51.24 | b | 62.04 | b | 62.04 | c | 79.64 | b | 86.97 | b | 86.82 | c | 77.23 | d | 58.82 | c | 45.76 | a | 39.03 | 60.62 | ||
2020 | 37.80 | a | 43.52 | 52.50 | a | 63.97 | 76.83 | b | 84.00 | 87.68 | 90.27 | a | 78.22 | c | 68.43 | c | 53.44 | c | 39.52 | 64.68 | ||||||
2021 | 37.86 | b | 41.33 | a | 50.93 | c | 63.21 | a | 72.39 | c | 86.07 | b | 85.11 | c | 84.42 | 80.43 | 61.37 | d | 57.00 | c | 43.07 | a | 63.60 | |||
2022 | 41.90 | a | ----- | z | 52.05 | j | 63.89 | c | 74.45 | b | 81.08 | d | 84.78 | d | 80.07 | c | 77.05 | j | 60.11 | d | 46.14 | a | 40.62 | b | 63.67 | c |
2023 | 35.40 | a | 40.05 | f | 46.23 | e | 59.90 | i | 70.69 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.77 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.19 | 44.35 | 52.89 | 61.84 | 70.87 | 82.64 | 85.93 | 82.81 | 76.34 | 64.81 | 50.30 | 41.42 | 63.43 | |||||||||||||
S.D. | 4.05 | 3.74 | 3.96 | 3.25 | 3.89 | 3.25 | 2.54 | 2.89 | 3.14 | 3.62 | 4.35 | 3.59 | 1.46 | |||||||||||||
SKEW | 0.79 | 0.29 | 0.57 | -0.73 | 0.09 | 0.28 | 0.23 | 0.33 | -0.18 | 0.24 | 0.21 | 0.31 | -0.35 | |||||||||||||
MAX | 51.07 | 51.39 | 63.04 | 67.70 | 78.72 | 91.08 | 93.33 | 90.27 | 82.47 | 71.93 | 61.56 | 50.96 | 65.36 | |||||||||||||
MIN | 33.22 | 37.75 | 46.13 | 52.86 | 62.04 | 76.74 | 80.50 | 77.07 | 67.53 | 58.82 | 40.53 | 35.07 | 60.62 | |||||||||||||
YRS | 48 | 41 | 43 | 42 | 45 | 44 | 44 | 48 | 47 | 43 | 45 | 44 | 12 |