YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.38 | d | 22.27 | e | 27.83 | j |
1979 | 18.31 | e | 26.84 | f | 36.33 | k | 38.67 | c | 50.37 | a | 60.77 | 68.17 | b | 64.36 | f | 63.87 | k | 45.52 | j | 33.50 | j | 33.47 | p | 47.26 | g | |
1980 | 24.78 | m | 35.35 | f | 28.80 | i | 42.41 | h | ----- | z | 54.05 | j | 68.17 | j | 61.50 | g | ----- | z | ----- | z | ----- | z | 35.25 | u | ----- | z |
1981 | 35.08 | r | 31.92 | j | 33.12 | j | 45.85 | j | 45.33 | p | ----- | z | 66.58 | l | 71.76 | j | 62.53 | l | 43.57 | i | 40.59 | m | 29.60 | p | ----- | z |
1982 | 22.21 | n | 24.43 | h | 29.03 | n | 35.98 | j | 45.75 | m | 56.74 | i | 63.07 | j | 67.64 | i | 54.48 | j | 42.21 | l | 29.77 | j | 25.88 | k | ----- | z |
1983 | 33.10 | j | 30.07 | h | 34.64 | j | 34.40 | i | 46.80 | k | 55.84 | h | 62.25 | k | 65.66 | i | 55.33 | d | 49.55 | k | 34.02 | j | 19.84 | o | 55.33 | k |
1984 | 27.07 | j | 27.83 | e | 32.60 | 35.84 | b | 45.48 | b | 52.00 | 68.36 | b | 67.89 | 55.43 | a | 38.27 | a | 29.23 | d | 23.25 | a | 43.29 | a | |||
1985 | 25.71 | b | 23.45 | 30.22 | a | 44.96 | b | 52.72 | a | 63.77 | b | 72.89 | 64.90 | a | 48.80 | 44.97 | b | 25.31 | d | 29.96 | h | 45.24 | a | |||
1986 | 36.07 | c | 33.22 | c | 42.02 | 40.77 | 50.21 | 64.88 | 65.19 | 74.11 | d | 49.38 | b | 48.35 | 36.26 | c | 31.97 | 47.70 | ||||||||
1987 | 25.00 | c | 30.09 | 33.67 | a | 47.09 | a | 51.87 | 59.27 | 61.73 | a | 65.03 | 63.31 | c | 53.71 | 36.87 | d | 26.43 | k | 47.97 | a | |||||
1988 | 27.68 | k | 33.23 | i | 34.21 | j | 45.71 | i | 51.64 | j | 60.86 | h | 68.20 | f | 66.77 | a | 57.45 | 55.39 | c | 30.60 | e | 27.27 | a | 47.50 | g | |
1989 | 26.39 | d | 21.82 | 34.14 | b | 45.63 | c | 47.81 | 61.10 | 70.82 | 63.19 | 59.02 | c | 45.64 | b | 35.33 | 32.95 | 45.32 | ||||||||
1990 | 30.05 | a | 26.76 | a | 36.55 | 46.31 | a | 46.11 | h | 57.61 | c | 67.95 | 67.60 | a | 64.80 | 48.86 | f | 36.35 | 21.06 | m | 48.22 | c | ||||
1991 | 28.12 | j | 39.16 | i | 31.21 | j | 38.84 | h | 44.03 | l | 53.05 | j | 68.20 | i | 71.33 | j | 60.33 | f | 49.44 | f | 33.66 | b | 31.77 | a | 32.71 | j |
1992 | 32.70 | c | 34.54 | b | 40.55 | b | 46.59 | b | 59.02 | a | 60.16 | e | 63.68 | c | 69.16 | 58.64 | b | 51.75 | c | 31.65 | 25.45 | 47.82 | ||||
1993 | 25.27 | a | 27.13 | b | 37.69 | 37.68 | 53.37 | a | 52.43 | c | 56.65 | a | 60.88 | c | 58.83 | d | 48.10 | b | 32.00 | b | 29.74 | 43.31 | ||||
1994 | 32.24 | b | 26.61 | a | 40.54 | e | 44.35 | c | 53.71 | 60.98 | c | 72.16 | b | 70.82 | 63.09 | a | 45.10 | b | 25.21 | a | 28.17 | b | 46.92 | |||
1995 | 29.82 | c | 39.12 | c | 34.04 | c | 39.21 | b | 48.31 | 53.31 | f | 65.84 | b | 66.94 | 60.82 | b | 47.12 | a | 39.88 | d | 31.21 | c | 45.67 | a | ||
1996 | 27.66 | b | 32.48 | a | 36.59 | b | 42.84 | b | 47.23 | a | 60.35 | 71.85 | a | 69.76 | b | 56.17 | 47.28 | d | 36.88 | b | 28.70 | a | 46.48 | |||
1997 | 28.00 | b | 29.46 | a | 36.38 | a | 37.67 | a | 54.41 | b | 57.45 | 67.16 | 69.62 | b | 63.60 | d | 49.67 | d | 39.97 | 32.21 | c | 47.13 | ||||
1998 | 32.26 | d | 30.31 | a | 36.25 | a | 40.28 | 46.26 | d | 53.08 | d | 73.85 | d | 72.76 | ----- | z | 42.67 | a | 37.55 | a | 25.31 | b | 44.60 | a | ||
1999 | 26.98 | b | 26.00 | m | 33.17 | g | 35.47 | l | 46.31 | o | 55.15 | m | 67.44 | v | 64.88 | s | 57.58 | q | 51.27 | t | 45.85 | t | ----- | z | 26.98 | k |
2000 | 26.32 | t | 26.00 | v | 30.63 | p | 45.71 | p | 46.00 | l | 62.44 | m | 70.10 | p | 72.53 | n | 59.39 | p | 42.45 | t | 28.69 | q | 31.62 | w | ----- | z |
2001 | 28.75 | s | 26.73 | m | 36.95 | t | 41.44 | n | 56.67 | p | 55.70 | o | 63.89 | q | 74.26 | l | 64.60 | o | 47.75 | k | 33.45 | s | 25.53 | o | ----- | z |
2002 | 24.21 | l | 29.81 | j | ----- | z | 42.29 | k | 46.68 | l | 62.06 | n | ----- | z | 62.71 | j | 57.31 | n | 44.19 | j | 39.27 | o | 30.71 | l | ----- | z |
2003 | 35.71 | l | 27.93 | n | 34.38 | n | 36.38 | j | 50.78 | o | 60.14 | l | 72.00 | r | 67.35 | r | 53.95 | k | 49.09 | t | 23.59 | n | 25.53 | n | ----- | z |
2004 | 24.46 | q | 22.54 | q | ----- | z | ----- | z | 41.79 | l | 51.40 | o | 64.03 | n | 63.42 | m | 56.50 | d | 45.84 | f | 32.44 | e | 31.92 | g | 44.47 | j |
2005 | 31.56 | d | 32.45 | g | 35.83 | e | 40.96 | f | 49.56 | e | 56.57 | g | 73.12 | g | 72.35 | h | 59.75 | j | 49.67 | m | 36.11 | g | 26.88 | j | 38.98 | i |
2006 | 28.36 | j | 28.07 | e | 29.10 | f | 39.45 | k | 53.43 | h | 61.47 | k | 74.88 | e | 68.97 | l | 60.32 | e | 45.03 | m | 33.96 | f | 26.37 | h | 54.42 | i |
2007 | 25.13 | h | 30.48 | e | 39.15 | d | ----- | z | 55.00 | h | 61.89 | g | ----- | z | 69.17 | j | 58.67 | i | ----- | z | 35.98 | h | 20.75 | i | 34.81 | j |
2008 | 22.36 | j | 28.33 | f | 28.07 | j | 34.43 | i | 48.52 | g | 58.07 | h | 70.80 | i | 68.85 | g | ----- | z | ----- | z | 39.25 | h | 24.12 | j | ----- | z |
2009 | 28.47 | 28.17 | b | ----- | z | 37.78 | 51.85 | 53.98 | b | 68.66 | ----- | z | 66.12 | j | 40.67 | h | ----- | z | 22.05 | 41.57 | e | |||||
2010 | 29.45 | 28.59 | 31.60 | ----- | z | 39.02 | h | 54.27 | 66.18 | 63.73 | ----- | z | 49.48 | ----- | z | ----- | z | 46.18 | e | |||||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.82 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.82 | k | |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.23 | c | 25.23 | k |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 51.63 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.58 | 29.30 | 36.11 | 41.71 | 50.81 | 58.14 | 68.21 | 67.54 | 58.22 | 47.68 | 33.68 | 27.84 | 46.38 | |||||||||||||
S.D. | 4.03 | 4.08 | 3.35 | 3.86 | 3.59 | 4.14 | 4.62 | 3.64 | 4.66 | 4.41 | 4.40 | 3.76 | 1.59 | |||||||||||||
SKEW | -0.58 | 0.49 | 0.07 | 0.05 | 0.50 | -0.11 | -0.74 | 0.02 | -0.59 | -0.23 | -0.51 | -0.16 | -1.08 | |||||||||||||
MAX | 36.07 | 39.12 | 42.02 | 47.09 | 59.02 | 64.88 | 74.88 | 74.11 | 64.80 | 55.39 | 39.97 | 32.95 | 47.82 | |||||||||||||
MIN | 18.31 | 21.82 | 30.22 | 35.84 | 45.48 | 52.00 | 56.65 | 60.88 | 48.80 | 38.27 | 25.21 | 22.05 | 43.31 | |||||||||||||
YRS | 17 | 17 | 16 | 15 | 15 | 15 | 18 | 15 | 16 | 14 | 17 | 15 | 7 |