YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1977 | ----- | z | 42.86 | 43.90 | 55.87 | 57.52 | 74.67 | 78.16 | 77.42 | 72.00 | 61.03 | 50.94 | l | ----- | z | 62.60 | c | |||||||||
1978 | 44.84 | l | 48.57 | 54.71 | 55.93 | 64.65 | 75.07 | 80.03 | 77.55 | 71.17 | 64.35 | 49.47 | 37.13 | 61.69 | a | |||||||||||
1979 | 38.29 | 41.46 | 49.26 | 52.40 | 62.58 | 70.50 | 77.20 | a | 73.87 | 75.27 | 61.23 | 47.17 | 43.77 | 57.75 | ||||||||||||
1980 | ----- | z | 49.34 | 50.94 | 56.40 | 62.61 | 71.47 | 82.29 | 79.16 | 72.00 | 60.03 | 47.80 | 44.55 | 61.51 | a | |||||||||||
1981 | 44.68 | 45.39 | 50.77 | 60.43 | 66.45 | 78.57 | 84.29 | 82.65 | 76.73 | 59.81 | 50.80 | 44.71 | 62.11 | |||||||||||||
1982 | 42.42 | 49.43 | 52.39 | 58.83 | 66.00 | 73.41 | a | 81.35 | 82.00 | 74.45 | a | 58.32 | 49.21 | a | 42.84 | 60.89 | ||||||||||
1983 | 44.68 | 47.75 | 53.90 | 54.60 | 65.90 | 73.30 | 82.42 | 79.58 | 78.33 | 64.29 | 51.53 | 47.35 | 61.97 | |||||||||||||
1984 | 45.42 | 46.52 | 51.56 | m | 58.74 | c | 70.94 | 76.17 | 82.23 | 81.23 | a | 77.70 | 60.03 | 49.17 | 45.65 | 63.07 | a | |||||||||
1985 | 44.16 | 45.00 | 49.52 | 61.40 | 69.19 | 76.37 | 82.92 | e | 81.45 | 68.73 | ----- | z | 49.57 | b | 42.19 | 60.96 | a | |||||||||
1986 | 46.45 | 49.36 | 55.61 | ----- | z | 67.55 | 77.97 | 80.21 | b | 83.19 | 69.10 | 60.03 | 51.83 | 42.58 | 62.17 | a | ||||||||||
1987 | 40.70 | a | 47.82 | 50.81 | 62.76 | a | ----- | z | 76.10 | 78.90 | a | 81.42 | 73.47 | 66.74 | 51.07 | ----- | z | 62.98 | b | |||||||
1988 | 42.68 | 47.83 | 51.71 | 58.60 | 66.19 | 75.73 | 83.48 | 79.43 | a | 72.00 | 67.90 | a | 51.72 | a | 41.68 | 61.58 | ||||||||||
1989 | 41.97 | 45.68 | 56.10 | 64.63 | 68.97 | 76.70 | 83.23 | 80.80 | a | 74.73 | 63.06 | 52.17 | 42.39 | 62.54 | ||||||||||||
1990 | 41.48 | 43.89 | 53.68 | 61.93 | b | 66.00 | a | 76.86 | a | 83.29 | 80.33 | a | 75.76 | a | 63.19 | 52.13 | 39.29 | 61.49 | ||||||||
1991 | 42.35 | 50.89 | 49.13 | a | 57.73 | 63.77 | 71.90 | 79.68 | 81.71 | 75.97 | 66.87 | 51.77 | 44.84 | 61.38 | ||||||||||||
1992 | 44.45 | 51.86 | 54.00 | 62.50 | 69.90 | 75.57 | 81.32 | 82.42 | 76.10 | 64.94 | 48.77 | 42.68 | 62.88 | |||||||||||||
1993 | 47.42 | 49.14 | 54.35 | 59.27 | 69.16 | 74.40 | 79.80 | a | 79.94 | 72.93 | a | 64.39 | 49.62 | a | 39.79 | b | 61.68 | |||||||||
1994 | 43.06 | 43.48 | a | 54.81 | 60.37 | 66.15 | d | 79.38 | a | 83.13 | 84.40 | a | 77.43 | 61.29 | 45.93 | a | 42.68 | 61.84 | ||||||||
1995 | 46.16 | 51.96 | 53.03 | 58.31 | a | 63.87 | 72.76 | a | 81.73 | a | 85.47 | a | 78.40 | 62.39 | 54.03 | 45.00 | 62.76 | |||||||||
1996 | 44.48 | 52.52 | 54.20 | a | 61.30 | 69.57 | a | 76.37 | 85.97 | 84.29 | 75.45 | a | 64.00 | a | 52.80 | 45.32 | 63.86 | |||||||||
1997 | 47.87 | 47.15 | a | 55.06 | 60.24 | a | 73.19 | 75.30 | 78.90 | b | 84.39 | 78.93 | 62.87 | 51.73 | 41.69 | b | 63.11 | |||||||||
1998 | 43.63 | a | 47.41 | a | 51.52 | 54.59 | a | 63.37 | a | 70.53 | 83.60 | a | 85.00 | a | 75.63 | 60.63 | a | 49.17 | 43.27 | a | 60.70 | |||||
1999 | 45.19 | 47.37 | a | 52.32 | 55.03 | a | 66.10 | 74.27 | 82.39 | 82.23 | 76.76 | a | 62.74 | 51.30 | 43.52 | 61.60 | ||||||||||
2000 | 46.61 | 49.81 | c | 52.63 | a | 61.97 | 70.77 | 79.03 | 82.60 | a | 83.13 | 74.80 | 62.87 | a | ----- | z | 42.70 | a | 64.27 | a | ||||||
2001 | 43.00 | b | 45.57 | 54.66 | b | 56.71 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.87 | 41.68 | c | 49.58 | f | ||
2002 | 41.23 | 45.21 | 49.26 | 61.37 | ----- | z | 77.70 | 85.19 | 80.71 | 76.11 | c | 61.81 | 52.46 | b | 42.63 | a | 61.24 | a | ||||||||
2003 | 48.16 | 49.00 | a | 53.77 | 56.70 | 64.84 | 74.66 | a | 84.90 | 85.10 | 78.72 | a | 70.77 | r | ----- | z | 37.00 | n | 66.21 | c | ||||||
2004 | 41.79 | b | ----- | z | ----- | z | ----- | z | 65.00 | t | 73.20 | 81.24 | b | 80.87 | a | 69.86 | a | 61.52 | b | 47.31 | a | 43.71 | 62.44 | d | ||
2005 | 45.25 | c | 48.33 | a | 50.32 | ----- | z | 65.34 | b | 70.12 | e | 81.85 | d | 80.20 | f | 71.70 | 61.73 | e | 49.50 | d | 39.62 | b | 58.38 | b | ||
2006 | 41.16 | f | 42.11 | a | 44.55 | k | 52.52 | i | ----- | z | 76.55 | h | ----- | z | 78.93 | d | ----- | z | ----- | z | ----- | z | 39.38 | e | 53.47 | i |
2007 | ----- | z | ----- | z | 50.54 | e | ----- | z | 66.42 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.48 | j |
2008 | 41.76 | f | 44.27 | g | 49.50 | e | 56.00 | f | 63.17 | a | 75.85 | c | ----- | z | 81.65 | e | ----- | z | 53.29 | x | 52.79 | f | 45.50 | u | 67.54 | h |
2009 | ----- | z | ----- | z | ----- | z | 57.80 | t | 71.71 | j | 72.60 | y | 87.00 | v | ----- | z | 85.09 | s | 58.40 | a | 50.53 | 40.87 | a | 49.93 | i | |
2010 | 46.00 | a | 48.75 | 49.94 | 52.17 | g | 61.73 | i | 71.50 | 81.65 | 78.87 | 72.67 | 61.55 | 47.20 | 44.87 | 60.30 | b | |||||||||
2011 | 41.20 | a | 42.29 | 51.00 | b | 57.38 | a | 60.58 | 70.67 | 78.55 | 82.74 | 74.17 | 61.16 | 47.03 | 38.74 | 58.79 | ||||||||||
2012 | 42.29 | 44.34 | 48.87 | 56.10 | 67.74 | 74.60 | 79.90 | 82.52 | 75.97 | 61.55 | 51.10 | 43.16 | 60.68 | |||||||||||||
2013 | 40.10 | 42.93 | 53.50 | a | 58.93 | 68.67 | j | 76.47 | m | 82.40 | u | 78.25 | s | 72.91 | s | 56.80 | p | 51.59 | m | 42.50 | s | 48.86 | h | |||
2014 | 47.92 | r | 50.00 | m | 55.82 | t | 58.54 | q | 62.12 | w | 77.12 | m | 84.39 | m | ----- | z | 78.00 | x | 62.50 | w | 47.69 | q | 44.47 | p | ----- | z |
2015 | 43.73 | t | 50.92 | o | 59.90 | u | 55.67 | r | 61.55 | t | ----- | z | ----- | z | ----- | z | 77.08 | r | 67.77 | r | 47.55 | s | 38.08 | r | ----- | z |
2016 | 40.91 | t | 49.88 | u | 53.20 | u | 62.00 | x | 62.86 | q | 78.85 | q | 83.71 | x | 78.67 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | 48.00 | y | ----- | z | ----- | z | 70.50 | i | 78.11 | b | 86.58 | 85.10 | 73.70 | 63.61 | 55.97 | 44.94 | 69.71 | e | ||||||
2018 | 47.81 | 48.68 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.81 | k | |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.90 | 47.00 | 51.99 | 58.66 | 66.16 | 74.81 | 81.84 | 81.50 | 74.59 | 62.40 | 50.51 | 42.66 | 61.53 | |||||||||||||
S.D. | 2.50 | 3.01 | 2.59 | 2.94 | 3.35 | 2.62 | 2.29 | 2.58 | 2.78 | 2.32 | 2.44 | 2.28 | 1.47 | |||||||||||||
SKEW | -0.09 | -0.10 | -0.76 | -0.04 | -0.25 | -0.19 | 0.01 | -0.67 | -0.38 | 0.49 | 0.28 | -0.42 | -1.04 | |||||||||||||
MAX | 48.16 | 52.52 | 56.10 | 64.63 | 73.19 | 79.38 | 86.58 | 85.47 | 78.93 | 67.90 | 55.97 | 47.35 | 63.86 | |||||||||||||
MIN | 38.29 | 41.46 | 43.90 | 52.40 | 57.52 | 70.12 | 77.20 | 73.87 | 68.73 | 58.32 | 45.93 | 37.13 | 57.75 | |||||||||||||
YRS | 31 | 33 | 33 | 29 | 29 | 33 | 32 | 33 | 32 | 31 | 31 | 32 | 18 |