YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | 79.17 | ----- | z | 96.31 | a | ----- | z | 94.90 | 87.70 | 78.42 | 64.36 | b | 55.78 | d | 79.52 | e | ||||
1983 | 56.72 | b | 63.74 | a | 70.20 | a | 70.90 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.55 | i |
1984 | ----- | z | ----- | z | ----- | z | 76.45 | a | 91.42 | 91.40 | 94.57 | a | 88.74 | 87.07 | 69.84 | 65.07 | 50.74 | 79.48 | c | |||||||
1985 | 51.39 | 59.64 | 66.63 | a | 78.17 | 84.52 | 94.90 | a | 96.77 | a | 92.97 | 85.67 | 73.81 | 65.97 | a | 58.58 | 75.75 | |||||||||
1986 | 62.58 | 66.29 | 71.77 | 80.43 | g | 86.19 | 91.87 | 90.81 | 92.62 | b | ----- | z | 73.67 | g | 59.87 | 49.73 | a | 74.64 | c | |||||||
1987 | 54.48 | d | 59.43 | 65.41 | b | 76.23 | 81.48 | 93.13 | 94.47 | a | 90.19 | 85.07 | 79.87 | 62.13 | 50.84 | 74.40 | ||||||||||
1988 | 52.19 | 62.57 | a | 68.03 | 76.60 | 85.32 | 93.90 | 93.58 | 89.29 | 85.63 | 81.19 | 68.33 | 53.16 | 75.82 | ||||||||||||
1989 | 55.42 | 64.11 | 75.61 | 85.50 | 91.16 | 97.50 | 96.26 | 90.71 | 88.87 | 78.74 | 68.47 | 55.19 | 78.96 | |||||||||||||
1990 | 56.65 | 61.18 | 68.74 | 79.63 | 85.58 | 100.47 | 92.10 | a | 89.03 | 84.87 | 78.68 | 64.70 | 53.65 | 76.27 | ||||||||||||
1991 | 54.74 | 63.57 | 66.26 | 78.87 | 87.29 | 94.00 | 91.13 | 90.13 | 83.20 | 80.29 | 61.87 | 52.63 | a | 75.33 | ||||||||||||
1992 | 50.23 | 60.28 | 69.16 | 80.70 | 80.65 | 92.87 | 96.16 | 93.65 | 90.57 | 80.81 | 60.93 | 50.42 | 75.53 | |||||||||||||
1993 | 57.10 | 61.54 | 70.42 | 79.53 | 86.90 | 96.53 | 97.32 | 91.13 | 87.83 | 76.61 | 64.80 | 56.29 | 77.17 | |||||||||||||
1994 | 59.06 | 62.57 | 71.16 | 78.87 | 86.90 | 101.45 | a | 99.32 | 97.13 | 88.83 | 76.55 | 62.20 | 57.52 | 78.46 | ||||||||||||
1995 | 56.19 | 67.61 | 70.90 | 75.30 | 84.52 | 93.93 | 97.42 | 96.26 | 87.07 | 81.90 | 71.30 | 60.39 | 78.57 | |||||||||||||
1996 | 62.06 | 67.86 | 69.48 | 79.07 | 94.19 | 97.60 | 95.90 | b | 91.90 | 84.63 | 75.87 | 67.03 | a | 59.06 | 78.72 | |||||||||||
1997 | 54.10 | 59.11 | 72.52 | 73.17 | 87.97 | 94.17 | 95.52 | 94.16 | 88.50 | 75.94 | 64.20 | 49.26 | 75.72 | |||||||||||||
1998 | 58.71 | 58.57 | 66.06 | 71.10 | 86.74 | 95.37 | 95.07 | a | 93.68 | 92.33 | 75.77 | ----- | z | 57.96 | e | 77.40 | a | |||||||||
1999 | 61.03 | 66.96 | 70.29 | c | 74.63 | 84.53 | a | ----- | z | 91.68 | 92.00 | j | 86.77 | 80.10 | b | 72.48 | a | 54.34 | b | 74.28 | b | |||||
2000 | 63.30 | d | 67.52 | b | 68.46 | c | 81.07 | 92.45 | b | 93.75 | b | 97.11 | d | 93.45 | b | 92.97 | a | 75.79 | g | 57.80 | 58.39 | 78.75 | a | |||
2001 | 51.60 | a | 61.71 | 67.38 | b | 78.93 | a | 89.29 | 96.97 | 97.58 | 93.39 | 90.60 | 81.43 | a | 60.44 | e | 56.45 | 77.15 | ||||||||
2002 | 58.26 | 60.11 | 69.87 | a | 83.70 | 88.77 | 99.70 | 94.77 | 96.85 | d | 87.97 | 75.65 | 63.34 | a | 53.79 | b | 77.73 | |||||||||
2003 | 63.29 | c | 61.59 | a | 68.50 | a | 78.62 | d | 89.30 | a | 94.14 | b | 100.73 | a | 96.26 | d | 90.58 | d | 81.93 | b | 65.82 | b | 59.81 | e | 79.21 | |
2004 | 55.81 | 59.24 | 71.00 | 74.10 | 87.13 | 95.30 | 94.84 | 89.90 | 85.33 | 74.74 | 60.00 | 54.71 | 75.18 | |||||||||||||
2005 | 59.10 | 56.78 | a | 65.26 | 74.86 | a | 85.45 | 95.59 | c | 99.23 | a | 90.00 | k | 89.07 | o | ----- | z | ----- | z | ----- | z | 76.61 | e | |||
2006 | ----- | z | ----- | z | ----- | z | ----- | z | 89.65 | 95.47 | 93.74 | 87.36 | f | 80.41 | c | 72.31 | b | ----- | z | ----- | z | 86.31 | g | |||
2007 | 46.85 | k | 62.79 | 70.94 | 76.14 | b | ----- | z | 90.83 | x | ----- | z | 94.19 | e | 87.43 | 79.90 | a | 68.23 | 54.87 | a | 74.31 | d | ||||
2008 | 53.37 | a | 65.66 | 70.71 | 77.60 | 84.58 | 97.17 | 90.13 | 89.71 | 83.17 | 77.97 | a | 67.34 | a | 58.67 | a | 76.34 | |||||||||
2009 | 61.47 | a | 66.18 | 70.94 | 76.53 | 87.90 | 90.59 | c | 96.45 | 94.32 | 86.07 | a | 74.45 | 66.43 | 51.81 | 76.93 | ||||||||||
2010 | 52.71 | 57.43 | 65.68 | 74.90 | a | 85.55 | 97.40 | 92.93 | a | 93.33 | a | 90.33 | 80.00 | 66.04 | b | 62.93 | a | 76.60 | ||||||||
2011 | 57.06 | 60.04 | a | 76.65 | 81.03 | a | 84.74 | 99.00 | 97.52 | 97.65 | 88.63 | 78.84 | 64.47 | 47.19 | 77.73 | |||||||||||
2012 | 61.19 | 61.76 | 71.16 | 81.43 | 86.82 | i | 97.83 | 93.69 | b | 95.84 | 88.23 | 82.42 | 70.00 | ----- | z | 80.36 | b | |||||||||
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | 73.83 | m | 80.15 | d | 83.52 | b | 99.73 | d | 97.04 | f | 87.57 | x | 87.61 | b | 81.37 | a | 66.41 | h | 63.05 | i | 86.48 | g |
2015 | 59.95 | k | 67.30 | h | 65.62 | w | ----- | z | ----- | z | 96.20 | j | 95.90 | j | 96.17 | b | 91.90 | 80.66 | b | 66.77 | 58.03 | 78.71 | g | |||
2016 | 55.00 | a | 68.10 | 75.58 | 77.55 | a | 84.19 | 97.66 | a | 101.74 | 91.19 | 87.83 | 84.42 | 67.27 | 58.68 | 79.10 | ||||||||||
2017 | 57.23 | 67.31 | b | 76.71 | 81.55 | a | 87.07 | c | 99.14 | a | 97.55 | b | 93.45 | b | 90.97 | 82.29 | 76.55 | a | 61.45 | 80.94 | ||||||
2018 | 61.07 | a | 66.70 | a | 70.93 | a | 82.69 | a | 89.12 | w | 101.86 | p | 97.56 | m | 96.25 | k | 94.44 | l | 78.05 | k | 64.85 | q | ----- | z | 70.35 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 57.10 | 62.84 | 70.08 | 78.25 | 86.83 | 95.96 | 95.54 | 93.07 | 87.64 | 78.48 | 65.47 | 55.41 | 77.16 | |||||||||||||
S.D. | 3.76 | 3.40 | 3.11 | 3.17 | 3.05 | 2.73 | 2.86 | 2.63 | 2.84 | 3.35 | 4.04 | 3.94 | 1.66 | |||||||||||||
SKEW | 0.03 | 0.09 | 0.49 | 0.02 | 0.37 | 0.05 | 0.06 | -0.01 | -0.27 | -0.60 | 0.50 | -0.18 | 0.38 | |||||||||||||
MAX | 63.30 | 68.10 | 76.71 | 85.50 | 94.19 | 101.45 | 101.74 | 97.65 | 92.97 | 84.42 | 76.55 | 62.93 | 80.94 | |||||||||||||
MIN | 50.23 | 56.78 | 65.26 | 71.10 | 80.65 | 90.59 | 90.13 | 88.74 | 80.41 | 69.84 | 57.80 | 47.19 | 74.40 | |||||||||||||
YRS | 30 | 31 | 31 | 32 | 30 | 31 | 30 | 30 | 32 | 31 | 30 | 30 | 22 |