YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.31 | b | 55.04 | e | 50.37 | a | 57.57 | i |
1981 | 48.47 | a | 52.89 | 55.23 | a | 71.80 | ----- | z | 90.62 | a | 91.83 | b | 88.79 | c | 81.79 | f | 64.93 | a | 54.34 | a | 45.27 | e | 66.42 | b | ||
1982 | 40.47 | a | 40.29 | 54.59 | i | 65.55 | h | 73.71 | c | ----- | z | 90.23 | 87.87 | 81.71 | b | 64.48 | 49.00 | 40.83 | a | 63.18 | c | |||||
1983 | 40.93 | a | 49.14 | 53.47 | a | 58.89 | b | 73.50 | c | 84.31 | a | 89.14 | b | 89.10 | b | 83.48 | a | 69.00 | 52.50 | 41.58 | 65.42 | |||||
1984 | 37.72 | b | 47.45 | 57.37 | a | 63.80 | 84.16 | 86.52 | a | 93.00 | c | 88.23 | 83.38 | d | 61.64 | i | 52.00 | b | 40.79 | c | 66.76 | a | ||||
1985 | 38.07 | b | 44.54 | 56.43 | c | 69.70 | 78.04 | c | 90.89 | b | 92.93 | c | 91.67 | a | 76.46 | d | 66.00 | a | 50.96 | c | 42.75 | c | 66.54 | |||
1986 | 47.20 | a | 52.64 | 63.35 | 67.93 | c | 76.93 | b | 89.23 | 89.07 | c | 90.45 | i | 74.73 | d | 64.52 | b | 51.39 | b | 41.26 | d | 65.30 | a | |||
1987 | 36.43 | c | 44.78 | a | 52.71 | 69.77 | d | 74.39 | c | 88.64 | b | 90.31 | b | 86.07 | b | 81.00 | a | 70.23 | 47.66 | a | 35.79 | b | 64.81 | |||
1988 | 32.24 | b | 46.59 | 58.71 | c | 65.36 | b | 75.61 | 88.41 | a | 92.83 | b | 87.07 | a | 79.86 | a | 73.42 | 52.67 | 41.97 | b | 66.23 | |||||
1989 | 34.52 | 44.30 | a | 64.66 | b | 73.79 | a | 80.83 | a | 88.14 | a | 93.53 | a | 88.28 | b | 82.69 | a | 70.28 | f | 56.31 | a | 44.83 | b | 68.35 | a | |
1990 | 38.68 | 47.00 | 59.47 | a | 69.36 | b | 75.77 | a | 92.88 | f | 91.10 | a | 87.21 | b | 80.59 | c | 66.33 | a | 48.07 | b | 33.11 | c | 63.33 | a | ||
1991 | 28.77 | a | 45.00 | 52.73 | a | 64.37 | 75.33 | a | 84.80 | 91.27 | a | 87.44 | f | 81.57 | b | 70.07 | c | 52.89 | b | 30.97 | a | 61.62 | a | |||
1992 | 33.37 | a | 46.79 | a | 56.78 | d | 72.89 | c | 75.29 | c | 85.11 | b | 90.04 | d | 88.93 | d | 80.75 | b | 71.81 | d | 46.81 | c | 28.77 | e | 64.78 | |
1993 | 40.44 | d | 45.24 | c | 58.72 | b | 69.96 | d | 76.75 | c | 86.50 | b | 92.62 | b | 86.88 | e | 80.60 | e | 64.00 | f | 50.43 | b | 41.62 | e | 66.34 | a |
1994 | 46.18 | c | 43.91 | f | 60.97 | a | 67.07 | b | 76.50 | a | 91.33 | 94.26 | 91.00 | b | 82.52 | a | 66.03 | a | 48.11 | b | 40.17 | a | 69.47 | a | ||
1995 | 41.00 | a | 55.68 | 57.50 | c | 64.79 | a | 72.21 | c | 83.00 | b | 90.52 | b | 90.55 | 86.73 | s | 70.48 | d | 58.41 | a | 47.45 | b | 66.51 | a | ||
1996 | 44.86 | b | 53.00 | 59.58 | 66.60 | e | 81.73 | a | 89.50 | b | 94.06 | 90.16 | 79.43 | b | 66.57 | a | 51.27 | 42.61 | 68.28 | |||||||
1997 | 38.32 | 44.69 | b | 64.86 | b | 60.83 | 78.27 | a | 86.39 | b | 90.20 | a | 86.30 | a | 80.33 | c | 66.27 | a | 52.11 | b | 39.14 | b | 65.64 | |||
1998 | 46.18 | c | 44.08 | b | 55.97 | a | 65.53 | 77.16 | 85.52 | a | 96.74 | 95.03 | 80.52 | a | 64.13 | a | 50.33 | 42.86 | c | 67.00 | ||||||
1999 | 46.50 | c | 52.11 | a | 62.55 | b | 64.12 | e | 75.27 | a | 84.61 | b | 88.44 | d | 86.00 | a | 81.18 | b | 75.64 | c | 57.93 | 41.48 | 67.99 | |||
2000 | 45.52 | b | 49.90 | 56.74 | d | 71.69 | d | 84.61 | c | 90.54 | b | 94.04 | c | 90.69 | e | 83.61 | b | 67.47 | a | 43.19 | c | 44.57 | a | 68.55 | ||
2001 | 39.61 | c | 46.27 | b | 59.30 | a | 67.29 | b | 79.31 | b | 90.41 | a | 91.41 | d | 92.94 | m | 86.43 | 73.97 | 56.89 | b | 40.59 | d | 66.50 | a | ||
2002 | 42.41 | b | 49.12 | b | 58.39 | 73.76 | a | 81.65 | 92.48 | a | 95.52 | 93.23 | a | 78.28 | a | 65.43 | a | 50.83 | 40.70 | a | 68.48 | |||||
2003 | 48.07 | a | 46.00 | a | 57.00 | b | 64.93 | c | 78.00 | 87.55 | a | 97.50 | a | 92.47 | a | 85.32 | b | 73.93 | d | 49.79 | b | 43.71 | c | 68.69 | ||
2004 | 39.37 | a | 42.22 | b | 64.83 | b | 64.87 | 79.19 | 88.41 | a | 91.77 | 88.17 | a | 78.67 | c | 67.33 | d | 48.72 | a | 41.53 | a | 66.26 | ||||
2005 | 46.00 | a | 47.88 | b | ----- | z | 63.62 | q | 78.25 | c | 85.04 | b | 95.63 | a | 87.39 | 80.43 | b | 70.81 | 56.60 | 44.61 | 69.26 | b | ||||
2006 | 44.97 | 50.70 | a | 54.60 | a | 69.76 | e | 82.55 | 93.90 | 94.07 | a | 87.66 | b | 78.31 | a | 62.25 | g | 54.28 | e | 40.52 | 68.30 | a | ||||
2007 | 37.84 | 49.74 | a | 59.81 | d | 68.42 | d | 77.68 | 90.33 | c | 94.26 | d | 90.60 | a | 81.65 | g | 69.31 | b | ----- | z | ----- | z | 70.89 | c | ||
2008 | 38.21 | b | 44.48 | d | 59.41 | b | 70.46 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.14 | h |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | 60.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.54 | b | ----- | z | ----- | z | ----- | z | 72.62 | j | |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.05 | i | 72.70 | d | 56.83 | ----- | z | 64.77 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.80 | 47.50 | 58.59 | 67.61 | 77.80 | 88.09 | 92.46 | 89.14 | 81.06 | 68.73 | 51.98 | 41.10 | 66.82 | |||||||||||||
S.D. | 5.12 | 3.68 | 3.47 | 3.80 | 3.24 | 2.84 | 2.38 | 2.38 | 2.66 | 3.42 | 3.71 | 4.60 | 1.44 | |||||||||||||
SKEW | -0.35 | 0.35 | 0.21 | -0.26 | 0.48 | 0.09 | 0.27 | 0.73 | -0.19 | 0.43 | -0.11 | -0.92 | -0.01 | |||||||||||||
MAX | 48.47 | 55.68 | 64.86 | 73.79 | 84.61 | 93.90 | 97.50 | 95.03 | 86.43 | 75.64 | 58.41 | 50.37 | 68.69 | |||||||||||||
MIN | 28.77 | 40.29 | 52.71 | 58.89 | 72.21 | 83.00 | 88.44 | 86.00 | 74.73 | 64.13 | 43.19 | 28.77 | 64.78 | |||||||||||||
YRS | 28 | 27 | 27 | 26 | 26 | 25 | 27 | 24 | 25 | 25 | 28 | 27 | 13 |