YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | 70.26 | 80.23 | 82.97 | 82.45 | 72.20 | 62.13 | 55.93 | 47.87 | 69.26 | d | ||||||||
1977 | 41.68 | 50.96 | 51.19 | 64.17 | 65.74 | 82.53 | 83.35 | 82.68 | 77.23 | 67.30 | a | 55.40 | 49.48 | 64.31 | ||||||||||||
1978 | 42.52 | 43.32 | 53.94 | 58.10 | a | 68.32 | 82.43 | 86.35 | 83.77 | 73.63 | 68.10 | 48.43 | 40.10 | 62.42 | ||||||||||||
1979 | 35.48 | 44.21 | 47.48 | 60.67 | 68.29 | 79.70 | 86.73 | a | 80.32 | ----- | z | 68.90 | 46.60 | 47.84 | 60.57 | a | ||||||||||
1980 | 41.97 | 47.66 | 47.06 | 59.80 | 63.68 | 81.27 | 84.65 | 82.19 | 77.47 | 64.03 | 54.93 | b | 52.94 | 63.14 | ||||||||||||
1981 | 48.39 | 49.71 | 50.03 | 63.60 | 68.68 | 83.59 | a | 82.90 | 81.29 | 73.90 | 59.71 | 56.45 | a | 50.45 | 64.06 | |||||||||||
1982 | 42.30 | a | 45.50 | 48.80 | a | 59.20 | 67.45 | 77.97 | 81.39 | 77.45 | 73.40 | 60.87 | 47.30 | 42.90 | a | 60.38 | ||||||||||
1983 | 45.45 | 45.79 | 48.39 | 53.21 | a | 68.97 | a | 79.07 | 81.84 | 77.87 | 77.50 | 63.32 | 50.17 | 45.93 | a | 61.46 | ||||||||||
1984 | 45.10 | ----- | z | 53.37 | a | 58.52 | a | 77.97 | 79.66 | a | 79.90 | a | 77.00 | 76.00 | 55.81 | 49.93 | a | 39.26 | 62.95 | a | ||||||
1985 | 39.00 | 41.04 | 47.35 | 61.67 | 68.81 | 82.17 | 84.16 | 83.58 | 70.10 | 62.48 | 46.63 | 46.23 | 61.10 | |||||||||||||
1986 | 50.58 | 46.36 | 54.45 | 57.53 | 70.06 | 81.17 | 81.77 | 82.35 | 69.00 | 58.77 | 50.13 | 42.65 | 62.07 | |||||||||||||
1987 | 41.87 | 42.82 | 45.06 | 61.83 | 66.42 | 80.50 | 80.77 | 78.23 | 74.30 | 66.80 | a | 46.73 | 38.90 | 60.35 | ||||||||||||
1988 | 40.74 | 47.66 | 50.97 | 56.80 | 67.45 | 78.27 | 85.61 | 78.84 | 73.73 | 69.71 | 50.63 | 41.06 | 61.79 | |||||||||||||
1989 | 38.71 | 42.93 | 57.23 | ----- | z | 70.94 | 80.33 | 86.55 | 80.29 | 75.83 | 54.69 | b | ----- | z | 47.06 | 63.46 | b | |||||||||
1990 | 42.19 | 42.74 | a | 54.33 | d | 61.41 | c | 68.43 | a | 84.33 | 83.19 | 79.84 | 74.50 | 65.65 | 53.37 | 37.53 | a | 62.29 | ||||||||
1991 | 41.32 | 51.75 | 45.52 | 58.52 | a | 68.81 | 78.17 | 84.81 | 82.06 | 74.13 | 68.55 | 50.27 | 41.74 | 62.14 | ||||||||||||
1992 | 42.10 | a | 46.10 | 49.48 | 65.24 | a | 68.55 | 78.10 | 81.13 | 81.06 | 75.30 | 67.13 | 47.20 | 38.26 | 61.64 | |||||||||||
1993 | 40.94 | 41.57 | 52.84 | 61.20 | 70.42 | 78.70 | 84.90 | 81.27 | a | 75.50 | 62.03 | 49.20 | 44.29 | 61.90 | ||||||||||||
1994 | 47.00 | 41.79 | 54.90 | 58.76 | a | 69.77 | i | 85.27 | 87.42 | 85.19 | 77.60 | 61.77 | 47.57 | 43.87 | 62.83 | a | ||||||||||
1995 | 39.52 | 52.61 | 51.93 | a | 56.07 | 62.68 | 75.67 | 84.77 | 85.10 | 77.53 | 67.87 | 60.10 | a | 47.45 | 63.44 | |||||||||||
1996 | 47.45 | 49.97 | 55.06 | 62.87 | 76.16 | 85.53 | 86.48 | 84.06 | 73.87 | 62.97 | 52.44 | e | ----- | z | 66.99 | a | ||||||||||
1997 | 42.23 | a | 46.81 | a | ----- | z | ----- | z | ----- | z | 79.90 | a | 86.38 | b | 83.13 | a | 75.14 | a | ----- | z | ----- | z | ----- | z | 68.93 | f |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.79 | g | 54.75 | f | 46.48 | d | 46.48 | k |
1999 | 50.35 | e | 52.19 | g | 60.00 | h | 55.57 | i | 68.64 | c | 81.93 | c | 81.00 | d | 78.70 | d | 74.37 | c | 70.22 | d | 62.08 | d | 46.81 | e | 68.23 | c |
2000 | 49.27 | e | 50.21 | e | 51.92 | e | 68.85 | d | 78.19 | e | 83.19 | c | 87.29 | c | 82.61 | c | 78.86 | b | 61.00 | e | 45.81 | d | 50.96 | g | 67.02 | a |
2001 | 42.70 | d | 45.96 | d | 53.85 | e | 62.75 | f | 77.79 | c | 86.19 | d | 83.46 | g | 81.86 | b | 81.68 | b | 70.64 | f | 54.73 | h | 43.96 | d | 64.25 | d |
2002 | 46.28 | f | 51.88 | b | 55.33 | g | 68.24 | e | 76.04 | e | 87.74 | c | 90.26 | d | 87.89 | c | 75.69 | d | 63.14 | b | 54.92 | e | 41.93 | b | 69.77 | b |
2003 | 53.24 | b | 45.72 | c | 53.04 | d | 60.22 | g | 75.84 | f | 84.70 | c | 90.93 | c | 83.78 | d | 80.59 | c | 72.97 | b | 50.75 | f | 45.42 | e | 67.82 | c |
2004 | 44.00 | d | 41.85 | c | 61.47 | a | 60.60 | e | 74.93 | c | 84.28 | a | 86.07 | a | 82.50 | a | 76.85 | c | 60.92 | e | 49.08 | d | 46.15 | d | 64.06 | |
2005 | 44.97 | b | 45.29 | 52.92 | e | 62.52 | e | 73.97 | a | 79.24 | a | 90.73 | a | 81.80 | a | 78.59 | c | 67.50 | e | 58.71 | b | 50.17 | a | 65.53 | ||
2006 | 48.61 | c | 52.00 | a | 48.42 | g | 65.33 | c | 78.30 | d | 88.17 | a | 87.74 | 82.79 | b | 75.21 | a | 62.69 | b | 58.82 | b | 46.24 | b | 67.81 | a | |
2007 | 43.72 | b | 49.04 | d | 59.63 | d | 66.85 | d | 76.32 | c | 87.56 | c | 90.21 | b | 84.83 | a | 79.55 | a | 69.27 | a | 62.37 | 44.45 | 67.82 | |||
2008 | 40.36 | c | 44.86 | 58.26 | 64.21 | b | 69.43 | a | 86.14 | b | 88.24 | b | 85.93 | c | 78.86 | a | 67.55 | b | 55.42 | f | 40.07 | d | 65.81 | a | ||
2009 | 48.87 | a | 47.55 | f | 56.32 | c | 60.73 | d | 73.04 | f | 71.87 | o | 85.75 | c | 84.09 | h | 78.43 | g | 59.50 | u | 57.00 | n | 36.32 | f | 62.92 | h |
2010 | 43.32 | f | 41.62 | g | 51.52 | h | 57.04 | f | 65.35 | e | 80.46 | f | 85.44 | f | 82.19 | o | 80.71 | m | 62.58 | l | 47.11 | l | 46.36 | f | 65.35 | k |
2011 | 44.36 | c | 43.14 | f | 53.77 | 59.86 | p | ----- | z | ----- | z | ----- | z | ----- | z | 75.20 | e | 65.76 | b | 51.17 | 42.84 | 55.52 | f | |||
2012 | 51.10 | 46.46 | a | 57.03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.53 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.18 | 46.49 | 52.59 | 61.35 | 70.57 | 81.99 | 85.20 | 81.96 | 75.73 | 64.50 | 52.23 | 44.53 | 62.77 | |||||||||||||
S.D. | 4.15 | 3.47 | 4.08 | 3.73 | 4.48 | 3.28 | 3.05 | 2.57 | 2.77 | 4.30 | 4.96 | 3.84 | 1.87 | |||||||||||||
SKEW | 0.32 | 0.21 | 0.06 | 0.11 | 0.41 | 0.24 | 0.17 | -0.06 | -0.13 | -0.31 | 0.60 | 0.04 | 1.10 | |||||||||||||
MAX | 53.24 | 52.61 | 61.47 | 68.85 | 78.30 | 88.17 | 90.93 | 87.89 | 81.68 | 72.97 | 62.37 | 52.94 | 67.82 | |||||||||||||
MIN | 35.48 | 41.04 | 45.06 | 53.21 | 62.68 | 75.67 | 79.90 | 77.00 | 69.00 | 54.69 | 45.81 | 37.53 | 60.35 | |||||||||||||
YRS | 33 | 30 | 30 | 27 | 30 | 32 | 32 | 32 | 32 | 31 | 28 | 31 | 18 |