YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.88 | 47.77 | a | 32.88 | a | 33.52 | 42.51 | h | ||
1980 | 19.68 | 30.83 | 36.35 | 45.31 | a | 50.27 | a | 51.95 | 60.56 | 56.97 | 53.52 | a | 44.68 | 38.93 | 35.71 | 43.73 | ||||||||||
1981 | 34.27 | 34.74 | a | 40.08 | a | 42.18 | 48.93 | a | 53.92 | 58.12 | a | 63.05 | 53.34 | a | 43.66 | 37.98 | 30.48 | a | 45.06 | |||||||
1982 | 29.58 | 32.82 | 38.29 | 40.03 | 47.78 | a | 58.87 | 60.26 | 60.20 | a | 53.65 | c | 43.43 | c | 33.09 | a | 28.26 | b | 43.85 | |||||||
1983 | 34.53 | a | 37.29 | 42.28 | a | 42.72 | 51.65 | a | 54.43 | a | 57.52 | a | 62.13 | 50.05 | 42.98 | 39.29 | b | 20.95 | 44.65 | |||||||
1984 | 31.18 | a | 35.36 | 40.64 | b | 40.58 | 46.18 | a | 52.80 | 60.63 | 60.58 | 52.34 | a | 41.77 | 35.57 | 24.92 | a | 43.55 | ||||||||
1985 | 25.45 | a | 27.36 | 36.42 | a | 44.33 | 51.10 | b | 55.77 | 64.68 | 57.95 | a | 50.20 | 44.07 | b | 24.93 | c | 18.70 | a | 41.75 | ||||||
1986 | 30.21 | 32.07 | a | 43.00 | 42.52 | a | 50.32 | 61.58 | 57.19 | 64.60 | 50.83 | 46.95 | 38.86 | a | 27.92 | a | 45.51 | |||||||||
1987 | 26.77 | 35.19 | a | 39.10 | 46.97 | 52.17 | b | 58.79 | b | 60.63 | 59.19 | 55.97 | 46.08 | 39.74 | a | 27.27 | a | 45.65 | ||||||||
1988 | 27.58 | a | 34.80 | a | 38.70 | a | 45.55 | 49.50 | 55.22 | a | 61.27 | a | 59.66 | 53.72 | 51.03 | 38.50 | 30.15 | a | 45.47 | |||||||
1989 | 33.90 | a | 23.46 | 36.32 | 46.75 | 49.28 | a | 58.25 | 59.19 | 59.19 | b | 54.95 | 44.11 | 40.55 | 32.17 | b | 44.84 | |||||||||
1990 | 34.56 | 32.21 | b | 40.05 | 46.85 | 48.97 | b | 56.80 | 63.71 | 62.39 | 58.00 | c | 42.87 | a | 39.09 | c | 25.75 | a | 45.94 | |||||||
1991 | 30.21 | 40.11 | a | 36.42 | a | 42.48 | a | 47.55 | c | 51.19 | d | 61.85 | e | 63.90 | a | 56.17 | c | 44.28 | a | 37.76 | c | 32.68 | a | 45.38 | ||
1992 | 34.22 | b | 39.14 | 43.07 | a | 46.31 | a | 54.00 | a | 61.43 | b | 61.29 | b | 61.90 | b | 52.79 | d | 47.12 | b | 36.26 | a | 26.61 | 47.01 | |||
1993 | 22.20 | a | 26.62 | 37.73 | 43.38 | 55.56 | 56.03 | a | 54.90 | f | 59.35 | a | 52.58 | d | 47.37 | e | 28.36 | a | 30.87 | a | 41.82 | a | ||||
1994 | 36.77 | 31.81 | d | 40.81 | b | 46.29 | a | 51.85 | d | 55.19 | a | 63.06 | g | 60.57 | c | 57.61 | c | 43.54 | c | 33.18 | 30.30 | a | 44.36 | a | ||
1995 | ----- | z | 39.17 | d | 38.87 | a | 41.67 | c | 51.40 | 55.54 | c | 60.82 | a | ----- | z | 56.55 | a | 43.88 | c | 41.04 | b | 30.97 | 45.99 | b | ||
1996 | 32.03 | ----- | z | 38.55 | c | 43.84 | b | 46.12 | b | 54.63 | 63.85 | 60.67 | a | 50.81 | a | 45.06 | 35.38 | e | 28.09 | b | 45.37 | a | ||||
1997 | 29.08 | 33.07 | a | 39.16 | 42.03 | 53.05 | a | 54.55 | a | 60.79 | 64.88 | f | 55.66 | b | 44.84 | b | 38.52 | a | 31.82 | a | 43.87 | a | ||||
1998 | 31.84 | b | 35.96 | a | 39.43 | b | 44.34 | a | 49.88 | a | 55.79 | b | 66.32 | a | 63.15 | 58.06 | c | 44.24 | 39.83 | d | 30.50 | a | 46.61 | |||
1999 | 35.27 | 33.79 | 38.32 | 41.64 | a | 46.79 | 54.97 | 59.92 | 63.61 | 52.25 | b | 44.42 | 41.04 | b | 35.46 | c | 45.62 | |||||||||
2000 | 28.05 | 31.95 | a | 37.72 | a | 46.12 | 50.23 | 55.97 | a | 59.25 | a | 59.37 | 53.07 | c | 44.16 | c | 31.72 | 28.52 | 43.84 | |||||||
2001 | 28.73 | a | 31.52 | a | 39.44 | 41.79 | a | 52.13 | 54.38 | 60.59 | d | 62.07 | d | 56.86 | a | 44.64 | b | 38.28 | a | 31.42 | a | 45.15 | ||||
2002 | 31.57 | a | 34.69 | a | 35.48 | 42.86 | b | 49.02 | a | 59.02 | 63.58 | 59.73 | c | 53.85 | 42.33 | b | 36.58 | 33.47 | 45.18 | |||||||
2003 | 34.65 | a | 35.16 | c | 41.47 | 43.62 | ----- | z | 58.26 | a | 64.93 | a | 62.89 | c | 55.62 | f | 52.76 | b | 36.24 | c | ----- | z | 47.78 | c | ||
2004 | 31.30 | c | ----- | z | 43.38 | c | 46.02 | d | 52.14 | j | ----- | z | ----- | z | ----- | z | ----- | z | 48.09 | c | 37.28 | e | 34.56 | g | 41.21 | g |
2005 | 31.73 | a | ----- | z | 37.30 | u | 43.83 | 52.73 | 53.82 | 63.65 | a | 63.36 | b | 53.79 | a | 49.09 | h | 39.54 | c | 31.94 | d | 48.27 | c | |||
2006 | 44.26 | d | 36.12 | d | 43.81 | b | 46.19 | d | 52.31 | b | 58.43 | b | 63.87 | 60.77 | a | 55.02 | d | 43.95 | a | 41.67 | d | 33.08 | f | 49.67 | a | |
2007 | 29.03 | a | 37.38 | d | 44.09 | d | 43.75 | f | 51.50 | b | 55.43 | a | 66.03 | 60.38 | b | 52.78 | e | 45.10 | g | 36.34 | h | 29.82 | i | 49.58 | d | |
2008 | 26.48 | g | 36.60 | e | 36.56 | f | 40.80 | b | 52.52 | d | 54.05 | 61.37 | 61.17 | a | 54.88 | a | 44.65 | d | 44.50 | u | 31.32 | n | 50.76 | d | ||
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.52 | 42.45 | a | 37.20 | c | 26.30 | a | 41.12 | h | |
2010 | 34.41 | b | 37.75 | b | 38.03 | b | 41.19 | c | 42.73 | r | 52.50 | c | 61.93 | d | 58.55 | u | 55.57 | b | 50.91 | i | 35.03 | a | 30.60 | a | 43.00 | c |
2011 | 29.72 | b | 30.83 | a | 34.47 | a | 38.87 | 46.35 | a | 53.28 | 59.76 | 65.30 | a | 59.57 | 43.50 | 35.32 | 29.39 | 43.86 | ||||||||
2012 | 29.52 | 31.59 | 35.82 | 43.65 | 47.03 | a | 55.03 | 65.03 | a | 68.87 | 56.14 | s | ----- | z | ----- | z | ----- | z | 47.07 | d | ||||||
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.08 | 33.77 | 39.24 | 43.57 | 50.21 | 55.74 | 61.68 | 61.53 | 54.48 | 45.02 | 36.76 | 29.45 | 44.88 | |||||||||||||
S.D. | 4.56 | 3.81 | 2.63 | 2.24 | 2.48 | 2.55 | 2.47 | 2.48 | 2.50 | 2.47 | 3.74 | 3.86 | 1.23 | |||||||||||||
SKEW | 0.09 | -0.69 | 0.25 | -0.09 | -0.02 | 0.57 | 0.16 | 0.76 | 0.10 | 1.52 | -1.34 | -0.91 | -0.62 | |||||||||||||
MAX | 44.26 | 40.11 | 44.09 | 46.97 | 55.56 | 61.58 | 66.32 | 68.87 | 59.57 | 52.76 | 41.67 | 35.71 | 47.01 | |||||||||||||
MIN | 19.68 | 23.46 | 34.47 | 38.87 | 46.12 | 51.19 | 57.19 | 56.97 | 50.05 | 41.77 | 24.93 | 18.70 | 41.75 | |||||||||||||
YRS | 30 | 29 | 30 | 31 | 29 | 31 | 29 | 28 | 31 | 30 | 31 | 28 | 19 |