YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.32 | 60.65 | 58.77 | 52.30 | a | 40.63 | ----- | z | 54.13 | g | ||||
1980 | ----- | z | 47.03 | 45.47 | a | 47.67 | 51.23 | 52.30 | 58.74 | 60.26 | ----- | z | 50.17 | a | 40.63 | 39.90 | 49.34 | b | ||||||||
1981 | 40.94 | 42.29 | 44.61 | 50.20 | 54.00 | 58.17 | 60.10 | 61.61 | 58.30 | 48.06 | 43.97 | 39.71 | 50.16 | |||||||||||||
1982 | 40.55 | 44.67 | a | 45.06 | 46.20 | 54.65 | 56.17 | 54.73 | a | ----- | z | 57.93 | a | 47.48 | 43.30 | 36.10 | a | 47.89 | a | |||||||
1983 | 41.26 | 44.14 | 47.81 | 44.87 | 50.81 | 55.90 | 56.55 | 63.57 | a | 62.57 | 54.97 | 46.34 | a | 43.77 | 51.05 | |||||||||||
1984 | 40.94 | 38.55 | 41.90 | 46.23 | 50.77 | 55.60 | 64.45 | 60.68 | 62.97 | 50.39 | ----- | z | 40.71 | 50.29 | a | |||||||||||
1985 | 40.06 | ----- | z | 40.58 | 46.53 | 51.84 | 54.23 | 58.73 | a | 56.29 | 55.33 | 52.39 | 43.60 | 39.39 | 49.00 | a | ||||||||||
1986 | 43.06 | 44.96 | 46.35 | 46.03 | a | 48.65 | 55.83 | 57.77 | 58.23 | a | 50.20 | 48.93 | a | 42.47 | 38.41 | b | 48.41 | |||||||||
1987 | 36.20 | a | 40.96 | 42.93 | a | 48.37 | 54.42 | 56.63 | 57.29 | 59.16 | 58.57 | 57.34 | b | 45.00 | 35.74 | 49.39 | ||||||||||
1988 | 39.06 | 40.79 | 42.84 | 46.72 | a | 49.83 | a | 52.83 | 59.97 | 60.77 | 56.54 | b | 55.26 | 42.75 | b | 39.84 | 48.93 | |||||||||
1989 | 35.68 | 41.39 | 44.39 | 51.20 | 50.90 | b | 55.93 | 58.10 | 60.61 | 54.63 | 52.19 | 44.63 | 35.58 | 48.77 | ||||||||||||
1990 | 38.06 | 38.04 | 44.68 | 52.50 | 53.03 | 57.20 | 60.35 | 61.35 | 57.73 | 51.03 | 41.63 | 35.74 | 49.28 | |||||||||||||
1991 | 40.19 | 41.61 | 43.19 | 47.20 | 49.97 | a | 55.07 | a | 61.00 | 59.06 | 59.03 | 52.16 | 42.17 | 36.23 | a | 48.91 | ||||||||||
1992 | 37.67 | a | 45.45 | 48.39 | 52.50 | 60.00 | 56.80 | 61.84 | 63.26 | 56.25 | b | 52.68 | 41.24 | a | 36.30 | a | 51.03 | |||||||||
1993 | 43.48 | 44.89 | 46.55 | 47.93 | 54.00 | 56.40 | 59.58 | 58.32 | 56.60 | 52.42 | 44.60 | ----- | z | 51.34 | a | |||||||||||
1994 | 38.10 | 43.07 | 48.06 | 50.90 | a | 53.58 | 57.40 | 60.29 | 62.52 | 57.70 | 51.33 | a | 37.80 | 38.65 | 49.95 | |||||||||||
1995 | 45.61 | 49.75 | 48.74 | 47.00 | 53.23 | 56.60 | 59.03 | 60.06 | 59.33 | 52.65 | 45.90 | 40.74 | 51.55 | |||||||||||||
1996 | 40.55 | 46.59 | 45.83 | a | 48.60 | 53.42 | 56.57 | 60.42 | 61.68 | 60.00 | 50.06 | 44.87 | 41.90 | a | 50.87 | |||||||||||
1997 | 44.90 | 39.00 | 44.35 | 46.90 | 55.57 | a | 59.89 | b | 58.90 | 62.00 | a | 61.90 | 51.97 | 46.38 | a | 38.13 | 50.82 | |||||||||
1998 | 41.48 | 44.79 | 45.77 | 44.83 | 51.10 | a | 53.72 | a | 59.71 | 60.52 | 58.97 | 47.58 | 40.57 | 33.77 | 48.57 | |||||||||||
1999 | 36.58 | 37.32 | 40.74 | 42.90 | 49.19 | 51.62 | a | 56.00 | a | 56.74 | 56.53 | 47.32 | 41.07 | 33.90 | 45.83 | |||||||||||
2000 | 38.48 | 43.41 | 41.68 | 45.60 | 50.10 | 54.47 | 54.58 | 58.59 | b | 55.21 | a | 52.07 | a | 36.87 | 36.10 | a | 47.26 | |||||||||
2001 | 34.77 | a | 38.07 | 46.61 | 44.60 | 53.10 | a | 54.10 | 57.10 | 57.68 | 54.13 | 49.19 | 43.52 | a | 33.10 | 47.16 | ||||||||||
2002 | 35.35 | 37.19 | a | 41.10 | 48.54 | b | 50.03 | 55.40 | 58.97 | 57.58 | 56.61 | b | 50.96 | e | 44.69 | d | 39.23 | 47.97 | ||||||||
2003 | 41.23 | a | 43.93 | 44.53 | a | 44.70 | 50.52 | 57.72 | a | 60.00 | a | 60.29 | 59.13 | 52.00 | l | 43.90 | 36.23 | 49.29 | a | |||||||
2004 | 37.67 | a | 38.69 | 47.77 | 47.10 | 51.29 | 55.93 | 58.90 | 58.00 | 55.90 | 51.33 | a | 42.07 | 39.74 | 48.70 | |||||||||||
2005 | 41.55 | b | 44.04 | 47.03 | 45.72 | a | 51.45 | 55.00 | a | 59.37 | d | 60.21 | c | 52.86 | a | 50.60 | f | 43.37 | 40.03 | b | 49.15 | a | ||||
2006 | 36.50 | a | 39.85 | b | 40.47 | a | 50.33 | 55.41 | b | 59.12 | d | 64.69 | b | 61.07 | d | 56.70 | 49.39 | 44.40 | e | 35.87 | a | 49.48 | ||||
2007 | 31.76 | f | 39.35 | b | 44.63 | a | 47.50 | b | 52.21 | b | 53.04 | b | 59.52 | 62.52 | 55.65 | d | 51.50 | c | 47.23 | 38.07 | b | 50.11 | a | |||
2008 | 40.52 | 39.96 | c | 43.39 | 47.80 | 52.90 | a | 56.53 | 61.55 | 62.17 | a | 58.97 | 50.14 | b | 47.24 | a | 40.70 | a | 50.15 | |||||||
2009 | 41.19 | 40.54 | 42.87 | 47.63 | 53.97 | b | 56.14 | a | 59.73 | a | 59.67 | a | 59.39 | b | 48.87 | 41.59 | a | 38.71 | 49.19 | |||||||
2010 | 39.03 | a | 42.59 | a | 43.52 | 45.62 | a | 48.26 | 55.39 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.80 | g | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.68 | 42.10 | 44.58 | 47.43 | 52.24 | 55.74 | 59.24 | 60.17 | 57.48 | 51.11 | 43.15 | 38.01 | 49.25 | |||||||||||||
S.D. | 2.77 | 3.19 | 2.41 | 2.33 | 2.44 | 1.90 | 2.25 | 1.89 | 2.74 | 2.34 | 2.50 | 2.59 | 1.42 | |||||||||||||
SKEW | 0.14 | 0.30 | -0.04 | 0.56 | 0.89 | -0.16 | 0.23 | -0.23 | -0.26 | 0.50 | -0.51 | 0.01 | -0.44 | |||||||||||||
MAX | 45.61 | 49.75 | 48.74 | 52.50 | 60.00 | 59.89 | 64.69 | 63.57 | 62.97 | 57.34 | 47.24 | 43.77 | 51.55 | |||||||||||||
MIN | 34.77 | 37.19 | 40.47 | 42.90 | 48.26 | 51.62 | 54.58 | 56.29 | 50.20 | 47.32 | 36.87 | 33.10 | 45.83 | |||||||||||||
YRS | 29 | 30 | 31 | 31 | 31 | 30 | 31 | 30 | 30 | 29 | 30 | 29 | 22 |