YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.57 | a | 61.13 | 48.52 | 37.40 | 27.00 | 48.12 | g | ||||
1976 | 30.97 | 36.69 | 37.55 | 44.03 | 53.48 | 61.17 | 68.03 | 65.10 | a | 59.37 | 47.52 | 37.93 | 31.26 | 47.76 | ||||||||||||
1977 | 32.42 | 34.82 | 34.39 | 45.10 | 46.32 | 60.55 | h | 68.48 | 68.50 | a | 62.66 | a | 50.81 | 39.93 | 35.74 | 47.20 | a | |||||||||
1978 | 33.06 | 35.11 | 41.20 | a | 42.77 | 50.97 | 61.57 | 65.21 | b | 64.97 | 59.83 | 54.10 | 41.07 | 29.87 | 48.31 | |||||||||||
1979 | 29.55 | 31.96 | 38.52 | 44.47 | 52.00 | 61.40 | 67.23 | 61.81 | 62.08 | d | 51.37 | a | 35.40 | 32.61 | 47.37 | |||||||||||
1980 | 35.69 | b | 37.52 | 37.90 | 44.23 | ----- | z | 58.87 | 65.16 | 65.45 | 59.37 | 48.19 | 37.90 | 36.58 | 47.90 | a | ||||||||||
1981 | 36.03 | 36.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.16 | j | ||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | 31.74 | 35.10 | 37.13 | a | 45.52 | a | 55.58 | 64.13 | 68.10 | 64.45 | 60.83 | 47.35 | 31.09 | g | ----- | z | 50.99 | b | ||||||||
2001 | ----- | z | ----- | z | 44.17 | h | 48.03 | 61.39 | 68.00 | b | 71.10 | a | 69.10 | 66.03 | 56.71 | 46.73 | 33.81 | 57.88 | c | |||||||
2002 | 36.10 | 38.14 | 40.42 | 52.73 | 57.29 | 69.23 | 72.52 | 70.61 | 64.93 | 52.13 | 44.10 | 35.10 | 52.78 | |||||||||||||
2003 | 40.71 | 38.63 | a | 41.93 | a | 46.43 | 57.87 | 67.33 | 73.10 | a | 71.23 | 64.60 | 57.42 | 41.83 | a | 35.77 | 53.07 | |||||||||
2004 | 37.23 | 35.03 | 48.26 | 48.13 | 59.52 | 66.37 | k | 69.93 | a | ----- | z | ----- | z | 45.00 | v | 39.47 | 31.30 | a | 46.11 | d | ||||||
2005 | 36.30 | a | 40.00 | 39.71 | 44.33 | 52.97 | 61.23 | 67.94 | 67.00 | a | 61.70 | 51.23 | 39.10 | 30.79 | b | 49.36 | ||||||||||
2006 | 31.26 | 33.82 | 38.63 | a | 45.70 | 54.55 | 65.47 | 70.87 | 67.97 | 58.76 | a | 48.90 | 39.45 | a | 30.84 | 48.85 | ||||||||||
2007 | 29.93 | b | 35.50 | 41.13 | 46.70 | 55.77 | 62.37 | 71.55 | 70.39 | 64.37 | 51.39 | 42.90 | 31.53 | a | 50.29 | |||||||||||
2008 | 33.03 | 34.69 | 38.10 | 43.37 | 50.28 | b | 62.14 | a | 69.43 | a | 68.26 | 61.18 | b | 49.10 | a | 41.13 | 32.86 | c | 48.63 | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.86 | 35.95 | 39.61 | 45.83 | 54.46 | 63.58 | 69.19 | 67.24 | 61.92 | 51.05 | 40.31 | 32.50 | 49.60 | |||||||||||||
S.D. | 3.21 | 2.10 | 3.30 | 2.56 | 4.10 | 3.24 | 2.47 | 2.70 | 2.31 | 3.19 | 2.95 | 2.68 | 2.07 | |||||||||||||
SKEW | 0.50 | 0.19 | 1.19 | 1.41 | -0.18 | 0.48 | -0.10 | -0.28 | 0.36 | 0.78 | 0.52 | -0.18 | 0.80 | |||||||||||||
MAX | 40.71 | 40.00 | 48.26 | 52.73 | 61.39 | 69.23 | 73.10 | 71.23 | 66.03 | 57.42 | 46.73 | 36.58 | 53.07 | |||||||||||||
MIN | 29.55 | 31.96 | 34.39 | 42.77 | 46.32 | 58.87 | 65.16 | 61.81 | 58.76 | 47.35 | 35.40 | 27.00 | 47.37 | |||||||||||||
YRS | 14 | 14 | 13 | 14 | 13 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 9 |