YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.65 | 30.65 | k | |
1966 | 26.35 | 30.14 | 36.58 | 43.57 | 53.94 | 58.30 | 65.45 | 66.81 | 55.52 | a | 45.70 | d | 34.63 | 26.81 | e | 45.32 | ||||||||||
1967 | ----- | z | 29.92 | d | 37.42 | 35.81 | c | 52.30 | a | 56.07 | c | 67.79 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.30 | g | |
1968 | ----- | z | 40.85 | b | 39.52 | 43.97 | 52.84 | 61.57 | 68.32 | 63.77 | 55.53 | 46.48 | 36.77 | 23.55 | 48.47 | a | ||||||||||
1969 | 34.61 | 31.86 | 35.48 | 42.97 | 54.76 | b | 58.60 | 67.00 | 66.84 | 57.33 | 42.13 | a | 36.80 | 29.90 | 46.52 | |||||||||||
1970 | 28.47 | a | 37.04 | a | 37.71 | 38.34 | a | 51.48 | b | 61.57 | b | 69.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.27 | e | ||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | 46.80 | 52.08 | f | 67.43 | 64.74 | 64.87 | 57.67 | 52.10 | 36.17 | 24.90 | 51.83 | d | ||||||||
1979 | 30.71 | 31.18 | 39.68 | 45.43 | 52.97 | 63.57 | 67.48 | 63.87 | 59.57 | 46.53 | a | 31.33 | 28.55 | 46.74 | ||||||||||||
1980 | 33.65 | 35.66 | 34.06 | 44.88 | n | 51.10 | 57.97 | a | 66.39 | 65.32 | 55.97 | 44.74 | 31.32 | b | 32.23 | 46.22 | a | |||||||||
1981 | 32.61 | 34.79 | 40.45 | 44.93 | 57.41 | b | 67.37 | 71.52 | 68.47 | a | 63.83 | 45.74 | 41.38 | a | 32.23 | 50.06 | ||||||||||
1982 | 29.87 | a | 33.25 | 39.45 | 43.90 | 56.06 | 61.93 | 66.29 | 69.29 | 61.90 | a | 45.16 | 34.47 | 30.74 | 47.69 | |||||||||||
1983 | 33.68 | 39.19 | a | 41.90 | 42.69 | a | 51.61 | 62.60 | 68.06 | 67.84 | 61.23 | 52.26 | 35.30 | 32.47 | a | 49.07 | ||||||||||
1984 | 33.87 | 31.86 | 39.00 | g | 45.37 | 61.23 | 63.33 | 72.48 | 70.00 | 64.60 | 44.39 | 36.40 | 31.39 | 50.45 | a | |||||||||||
1985 | 29.94 | 31.21 | 36.19 | 44.40 | 51.32 | 65.50 | 71.42 | 64.26 | 53.50 | 47.03 | 34.50 | 32.77 | a | 46.84 | ||||||||||||
1986 | 34.13 | 39.68 | 44.35 | 46.07 | 55.00 | 67.27 | 63.93 | a | 69.52 | 52.37 | 44.65 | 37.86 | a | 29.52 | 48.69 | |||||||||||
1987 | 28.93 | a | 34.18 | 36.71 | 47.67 | 54.71 | 63.93 | a | 64.03 | 67.48 | 59.97 | 57.97 | 40.53 | 24.76 | b | 48.41 | ||||||||||
1988 | 26.74 | 33.07 | 36.58 | 45.17 | 49.97 | a | 62.40 | 69.19 | 65.33 | a | 57.00 | 54.00 | 37.37 | 29.06 | 47.16 | |||||||||||
1989 | 26.63 | d | 32.46 | 42.67 | a | 53.57 | 54.40 | a | 62.67 | 70.66 | b | 63.72 | b | 55.70 | 45.83 | a | 37.55 | a | 30.29 | 48.01 | ||||||
1990 | 28.61 | 32.59 | a | 41.48 | 49.57 | 54.74 | 62.77 | 71.16 | 66.90 | 62.37 | 48.13 | 37.76 | a | 23.13 | 48.27 | |||||||||||
1991 | 28.86 | b | 36.39 | 37.48 | 44.86 | a | 49.74 | 60.70 | 69.42 | 67.66 | b | 62.93 | 51.74 | 38.57 | 31.53 | a | 48.32 | |||||||||
1992 | 29.00 | b | 38.36 | a | 42.32 | 47.93 | 58.13 | 61.27 | 67.77 | a | 69.06 | 60.03 | a | 51.68 | 33.50 | 28.53 | a | 48.97 | ||||||||
1993 | 31.21 | c | 35.11 | 42.32 | 44.97 | 56.74 | 60.07 | a | 65.23 | a | 67.03 | 56.33 | 49.06 | 33.77 | 28.45 | 47.53 | ||||||||||
1994 | 31.58 | 32.11 | 45.45 | 48.03 | 54.94 | 66.72 | a | 72.45 | 71.35 | 60.23 | 47.00 | 31.20 | 31.48 | 49.38 | ||||||||||||
1995 | 37.03 | 40.18 | 41.06 | 45.27 | 51.06 | 59.30 | 67.97 | 69.58 | 61.07 | 48.10 | 41.07 | 33.03 | 49.56 | |||||||||||||
1996 | 30.77 | 38.69 | 40.53 | a | 48.37 | 55.00 | a | 63.47 | 73.58 | 69.68 | 59.23 | 47.19 | 40.03 | 33.77 | 50.03 | |||||||||||
1997 | 35.00 | 36.32 | 40.26 | 45.33 | 60.77 | 65.18 | b | 66.29 | 69.58 | 63.07 | a | 47.39 | 38.90 | 31.23 | 49.94 | |||||||||||
1998 | 32.32 | 36.21 | 39.39 | 42.17 | 49.61 | 58.07 | 69.55 | 71.35 | 61.77 | 46.84 | 37.45 | a | 31.23 | 48.00 | ||||||||||||
1999 | 33.58 | 34.57 | 39.13 | 42.80 | 55.06 | 62.53 | 69.74 | 67.35 | 61.70 | 49.87 | 40.03 | 32.65 | 49.09 | |||||||||||||
2000 | 34.81 | 39.03 | 41.23 | 50.23 | 59.90 | 67.93 | 70.23 | 71.13 | 60.40 | 51.10 | 33.73 | 31.74 | 50.96 | |||||||||||||
2001 | 32.45 | 35.21 | 43.10 | 45.77 | 60.71 | 65.10 | 70.10 | b | 71.74 | 63.03 | a | 52.07 | a | 41.64 | b | 31.42 | 51.03 | |||||||||
2002 | 30.26 | 34.04 | 36.94 | 48.73 | 55.84 | 66.27 | 74.39 | 67.32 | 62.50 | 48.00 | 39.87 | 31.61 | 49.65 | |||||||||||||
2003 | 37.29 | 37.39 | 42.06 | 45.70 | 56.58 | 66.31 | a | 73.65 | 72.00 | 64.52 | a | 54.90 | 35.97 | 32.94 | 51.61 | |||||||||||
2004 | 30.55 | 35.31 | 46.08 | e | 49.00 | 56.03 | 64.57 | 71.48 | 69.16 | 60.10 | 50.35 | 38.83 | 33.42 | 50.41 | ||||||||||||
2005 | 38.27 | a | 38.56 | c | 39.28 | b | 43.37 | 56.13 | 61.80 | 71.50 | e | 70.13 | 57.13 | 50.73 | e | 41.30 | c | 30.75 | c | 49.91 | ||||||
2006 | 31.77 | a | 35.88 | b | 37.90 | a | 47.34 | a | 60.86 | b | 69.96 | g | 78.11 | c | 69.07 | d | 62.07 | 49.97 | a | 42.28 | e | ----- | z | 51.53 | b | |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.14 | x | ----- | z |
2008 | 30.85 | r | 35.44 | k | 39.73 | p | 42.92 | r | 50.90 | 61.43 | 70.65 | 70.39 | 60.20 | 48.16 | 42.34 | a | 30.26 | 54.29 | d | |||||||
2009 | 32.19 | 33.22 | a | 38.16 | 43.70 | 59.61 | 62.40 | 73.87 | 64.97 | 61.90 | 45.87 | 37.07 | 27.29 | 48.35 | ||||||||||||
2010 | 31.23 | 35.71 | 38.68 | 41.40 | 48.94 | 64.17 | a | 72.48 | 66.71 | 58.57 | 50.74 | 36.03 | 35.06 | 48.31 | ||||||||||||
2011 | 30.42 | 30.39 | 38.42 | 44.70 | 49.55 | 61.45 | a | 69.61 | 65.74 | 61.03 | 48.77 | 32.73 | 28.16 | 46.75 | ||||||||||||
2012 | 29.52 | 34.31 | 37.50 | a | 47.50 | 56.87 | 64.77 | 69.48 | 72.58 | 63.87 | 49.61 | 39.73 | 32.16 | 49.83 | ||||||||||||
2013 | 27.30 | a | 31.36 | 43.26 | 48.10 | 55.35 | 66.27 | 73.84 | 66.94 | 62.20 | 43.68 | 37.97 | 29.58 | 48.82 | ||||||||||||
2014 | 33.77 | 35.18 | 40.84 | 46.13 | 56.77 | 65.97 | 76.44 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.73 | e | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.57 | 34.94 | 39.78 | 45.43 | 54.77 | 63.01 | 69.88 | 68.02 | 59.95 | 48.57 | 37.21 | 30.24 | 48.73 | |||||||||||||
S.D. | 2.98 | 2.98 | 2.79 | 3.17 | 3.46 | 2.96 | 3.31 | 2.48 | 3.11 | 3.35 | 3.13 | 2.81 | 1.46 | |||||||||||||
SKEW | 0.25 | 0.17 | 0.26 | -0.43 | 0.16 | -0.29 | 0.21 | -0.07 | -0.60 | 0.55 | -0.22 | -0.94 | -0.18 | |||||||||||||
MAX | 38.27 | 40.85 | 46.08 | 53.57 | 61.23 | 67.93 | 78.11 | 72.58 | 64.60 | 57.97 | 42.34 | 35.06 | 51.61 | |||||||||||||
MIN | 26.35 | 29.92 | 34.06 | 35.81 | 48.94 | 56.07 | 63.93 | 63.72 | 52.37 | 42.13 | 31.20 | 23.13 | 45.32 | |||||||||||||
YRS | 37 | 39 | 38 | 39 | 40 | 40 | 40 | 38 | 38 | 38 | 38 | 38 | 32 |