YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.08 | e | 74.16 | 70.45 | b | 65.13 | 57.08 | f | 40.23 | 37.61 | 59.11 | f | ||||
1973 | 35.52 | 43.46 | 41.41 | b | 48.32 | b | 59.23 | 69.73 | 74.23 | a | 73.70 | a | 63.07 | 50.17 | a | 41.74 | c | 37.94 | 53.21 | |||||||
1974 | 39.52 | b | 37.68 | 44.74 | 47.59 | h | 54.13 | 63.67 | 70.45 | 70.79 | g | 67.87 | 59.55 | 44.03 | a | 34.52 | 51.62 | b | ||||||||
1975 | 36.10 | 36.81 | a | 40.67 | a | 41.40 | 50.77 | ----- | z | 71.73 | a | 68.52 | f | 64.67 | f | 51.26 | d | 41.39 | b | 37.52 | 45.29 | c | ||||
1976 | 35.87 | a | 44.45 | 41.80 | a | 45.31 | d | 55.58 | e | 59.79 | f | 71.41 | d | 65.92 | e | 65.53 | 54.50 | a | 46.73 | 37.77 | 51.35 | a | ||||
1977 | 38.43 | a | 39.26 | a | 40.06 | 46.67 | 50.61 | c | 63.00 | a | 71.00 | c | 73.90 | 65.61 | b | 59.06 | 45.07 | 42.65 | 52.94 | |||||||
1978 | 41.65 | 43.86 | 48.35 | ----- | z | 55.23 | 63.27 | 72.68 | 69.32 | 64.90 | 59.10 | 46.03 | 37.26 | 54.69 | a | |||||||||||
1979 | 37.10 | 38.43 | 43.35 | 47.60 | 57.68 | 64.43 | 70.84 | 68.43 | a | 66.53 | 52.42 | 38.40 | 37.45 | 51.89 | ||||||||||||
1980 | 41.17 | a | 44.34 | 43.00 | 47.30 | 52.35 | 59.73 | 73.06 | 71.90 | 62.77 | 54.35 | 43.10 | 41.42 | 52.88 | ||||||||||||
1981 | 42.68 | 41.86 | 44.52 | 49.79 | b | 56.06 | 67.48 | a | 74.94 | 74.57 | a | 66.53 | 52.00 | 45.28 | a | 39.90 | 54.63 | |||||||||
1982 | 40.06 | 51.54 | 44.80 | a | 48.93 | 55.07 | a | 57.06 | m | 69.52 | f | 73.43 | h | 66.07 | 50.65 | 44.97 | 39.58 | 49.07 | c | |||||||
1983 | 39.00 | a | 42.54 | 46.39 | c | 46.67 | 54.90 | 60.04 | c | 71.85 | k | 71.19 | e | 68.96 | f | 58.07 | a | 44.43 | 43.84 | 50.71 | b | |||||
1984 | 41.19 | 38.64 | a | 43.39 | c | 49.07 | c | 59.87 | 64.29 | f | 76.26 | h | 72.93 | d | 69.53 | 52.81 | 42.61 | b | 41.55 | b | 51.16 | b | ||||
1985 | 39.77 | a | 40.41 | a | 44.32 | 53.31 | a | 57.55 | 65.31 | a | ----- | z | 71.88 | n | 59.28 | e | 57.00 | d | 43.07 | a | 38.18 | c | 49.82 | b | ||
1986 | 44.23 | 43.85 | b | 49.62 | e | 51.04 | f | 56.55 | 65.36 | e | 70.93 | c | 75.95 | k | 61.00 | 52.10 | j | 46.50 | f | 39.61 | c | 53.89 | d | |||
1987 | 37.69 | b | 46.67 | p | 44.00 | i | 54.19 | d | ----- | z | 66.23 | d | 68.08 | s | 74.78 | m | 66.23 | h | 61.54 | g | 45.66 | a | 37.19 | 48.19 | g | |
1988 | 40.00 | m | 43.48 | h | 42.45 | k | ----- | z | 55.40 | p | 62.69 | d | 73.93 | d | 72.17 | a | 62.18 | b | 59.32 | i | 41.54 | f | 37.52 | 61.70 | g | |
1989 | 36.90 | a | 40.21 | 45.13 | 53.73 | 55.52 | 62.57 | 72.13 | 71.03 | 72.53 | 55.00 | 43.93 | 37.26 | 53.83 | ||||||||||||
1990 | 36.38 | b | 37.29 | 44.61 | 52.60 | 55.55 | 64.87 | 74.65 | 70.52 | 68.33 | 55.29 | 45.10 | 34.30 | a | 53.29 | |||||||||||
1991 | 38.32 | 43.39 | 41.00 | 46.53 | 51.87 | 59.77 | 67.87 | 72.35 | 65.40 | 56.74 | 45.20 | 42.71 | 52.60 | |||||||||||||
1992 | 40.77 | 46.07 | 47.81 | 53.20 | 59.61 | 64.27 | 72.52 | 73.55 | 67.13 | 55.65 | 40.83 | 37.00 | b | 54.87 | ||||||||||||
1993 | 45.52 | 43.68 | 47.29 | 50.87 | 59.48 | 63.43 | b | 67.61 | 72.84 | 64.60 | 56.00 | a | 43.77 | 37.35 | 54.37 | |||||||||||
1994 | 37.29 | 39.79 | 49.42 | 51.20 | 54.54 | g | 69.23 | 71.94 | 76.74 | 68.17 | 54.94 | 41.67 | 41.35 | 54.70 | a | |||||||||||
1995 | 41.45 | 46.00 | 47.26 | 47.97 | 53.87 | 60.50 | 75.16 | 78.03 | 72.53 | 55.26 | 51.07 | 40.94 | 55.84 | |||||||||||||
1996 | 38.65 | 45.52 | 44.00 | 50.37 | 57.52 | 64.40 | 73.32 | 76.23 | 67.57 | 55.71 | 45.80 | 38.26 | 54.78 | |||||||||||||
1997 | 41.61 | 39.89 | 48.48 | 51.93 | 63.97 | a | 63.57 | 71.52 | 74.90 | 71.63 | 56.39 | 45.27 | 36.52 | 55.47 | ||||||||||||
1998 | 39.77 | 41.21 | 43.97 | 46.10 | 53.61 | 61.83 | f | 74.68 | 78.03 | 70.27 | 53.61 | 44.38 | a | 37.07 | d | 52.97 | a | |||||||||
1999 | 39.03 | 41.21 | 41.87 | 47.13 | 56.77 | 64.47 | 74.27 | e | 72.94 | 70.43 | 58.23 | 46.97 | 37.10 | 54.20 | ||||||||||||
2000 | 36.10 | 39.10 | 47.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.83 | i | |||
2001 | ----- | z | ----- | z | 47.78 | h | 49.43 | g | 59.97 | b | 67.22 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.97 | k |
2002 | ----- | z | ----- | z | ----- | z | 49.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.21 | l | 49.27 | k | |
2003 | 42.60 | k | 43.00 | e | 45.60 | k | 47.57 | i | 57.05 | k | 62.82 | h | 76.52 | h | 77.60 | k | 70.26 | g | 61.09 | h | 44.00 | i | 36.48 | j | 43.00 | k |
2004 | 40.38 | j | 41.10 | h | 53.46 | g | 53.67 | i | 59.87 | 65.47 | 75.26 | 75.32 | 68.83 | 55.42 | 46.10 | 40.97 | 60.90 | d | ||||||||
2005 | 44.00 | 47.93 | 47.00 | 48.93 | a | 57.97 | ----- | z | 77.03 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.81 | f | |||||
2006 | 37.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.74 | k | |
2007 | ----- | z | ----- | z | 48.97 | 52.03 | 57.23 | 65.50 | 77.81 | 80.10 | 71.33 | 56.03 | 48.63 | 36.84 | 59.45 | b | ||||||||||
2008 | 39.87 | 43.34 | 46.84 | 52.40 | 55.94 | 69.50 | 78.39 | 78.68 | 72.57 | 56.06 | 48.47 | ----- | z | 58.37 | a | |||||||||||
2009 | 42.42 | 43.18 | 46.81 | 50.83 | 62.19 | 67.17 | 80.23 | 76.00 | ----- | z | 53.80 | a | 46.23 | 37.68 | 55.14 | a | ||||||||||
2010 | 42.94 | 45.64 | 47.06 | 50.30 | 55.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.24 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.65 | 42.37 | 45.20 | 49.45 | 56.51 | 64.55 | 73.35 | 73.53 | 67.05 | 55.18 | 44.54 | 38.61 | 53.91 | |||||||||||||
S.D. | 2.66 | 3.34 | 2.73 | 2.96 | 3.13 | 2.76 | 2.89 | 3.34 | 3.56 | 2.49 | 2.65 | 2.33 | 1.15 | |||||||||||||
SKEW | 0.31 | 0.45 | -0.19 | -0.47 | 0.18 | 0.06 | 0.27 | -0.07 | -0.18 | -0.21 | -0.01 | 0.49 | -0.02 | |||||||||||||
MAX | 45.52 | 51.54 | 49.62 | 54.19 | 63.97 | 69.73 | 80.23 | 80.10 | 72.57 | 59.55 | 51.07 | 43.84 | 55.84 | |||||||||||||
MIN | 35.52 | 36.81 | 40.06 | 41.40 | 50.61 | 59.73 | 67.61 | 65.92 | 59.28 | 50.17 | 38.40 | 34.30 | 51.89 | |||||||||||||
YRS | 32 | 31 | 31 | 29 | 31 | 27 | 28 | 26 | 28 | 28 | 30 | 31 | 14 |