YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.89 | l | ----- | z | ----- | z | ----- | z | ----- | z | 30.91 | i | ----- | z |
1989 | 27.61 | 30.62 | b | 39.14 | b | 47.03 | 58.17 | a | 58.77 | 64.00 | 49.42 | 49.03 | 40.50 | a | 35.22 | g | 28.29 | c | 44.78 | a | ||||||
1990 | 32.16 | 32.59 | a | 38.89 | c | 44.60 | 51.74 | 60.55 | a | 65.86 | b | 64.03 | 55.67 | 42.90 | 32.20 | 21.33 | a | 45.21 | ||||||||
1991 | 26.67 | d | 36.14 | 33.52 | 39.23 | 44.87 | 55.13 | 62.26 | 62.32 | 55.60 | 43.70 | d | 34.77 | 27.46 | c | 43.47 | ||||||||||
1992 | 29.45 | b | 38.59 | 42.81 | 51.40 | 52.85 | d | 54.80 | 59.61 | 60.84 | 50.50 | 45.84 | 35.70 | 26.93 | b | 45.78 | ||||||||||
1993 | 31.94 | 33.73 | f | 39.97 | ----- | z | 43.46 | c | 53.32 | b | 58.62 | b | 58.58 | 51.03 | 42.29 | 29.47 | 27.04 | c | 43.57 | b | ||||||
1994 | 28.13 | 28.68 | 38.68 | 42.27 | 48.94 | 59.00 | n | 64.55 | 63.10 | 53.57 | 40.48 | 26.90 | ----- | z | 43.53 | b | ||||||||||
1995 | 30.40 | a | 35.39 | 36.94 | 38.67 | 45.41 | b | 53.23 | 56.16 | f | 60.74 | 53.43 | 44.13 | 37.17 | 31.52 | 42.46 | a | |||||||||
1996 | 28.03 | 37.14 | 37.84 | 45.40 | 51.10 | 56.10 | ----- | z | 61.39 | 51.43 | 38.76 | j | 34.07 | 28.29 | 43.08 | b | ||||||||||
1997 | 29.61 | 30.21 | 34.48 | 38.37 | 52.00 | 55.60 | 57.30 | h | 60.55 | 56.70 | 38.77 | 33.00 | 29.32 | 41.69 | a | |||||||||||
1998 | 30.73 | a | 33.43 | 37.06 | 39.43 | 46.13 | 52.24 | a | 62.81 | 63.68 | 52.97 | 41.45 | 30.41 | h | 23.41 | d | 43.94 | a | ||||||||
1999 | 27.26 | 29.64 | 33.33 | m | 35.70 | 45.03 | b | 52.31 | a | 60.94 | 57.71 | 51.90 | 38.83 | a | 29.85 | c | 24.19 | 41.22 | a | |||||||
2000 | 26.30 | a | 30.72 | 33.90 | b | 40.03 | 50.48 | j | 54.67 | 55.00 | 57.52 | 48.14 | a | 39.36 | i | 21.83 | 22.03 | 39.01 | b | |||||||
2001 | 30.10 | a | 32.82 | 40.16 | 43.53 | 55.61 | 56.71 | m | 62.19 | 62.42 | 55.20 | 43.93 | a | 36.93 | 23.06 | 44.18 | a | |||||||||
2002 | 25.52 | 30.18 | 31.22 | d | 45.37 | 48.68 | 57.76 | e | 64.52 | 57.81 | 52.97 | 41.42 | ----- | z | 24.32 | 43.61 | a | |||||||||
2003 | 31.32 | 30.63 | a | 34.47 | a | 36.93 | a | 48.50 | a | ----- | z | 62.33 | a | 61.68 | 52.37 | ----- | z | 26.35 | d | ----- | z | 42.73 | c | |||
2004 | 23.10 | 24.00 | a | 37.27 | a | 39.14 | a | 44.00 | ----- | z | 59.45 | 55.90 | 46.97 | 40.42 | 27.90 | a | 25.30 | h | 39.81 | b | ||||||
2005 | 28.50 | a | 32.19 | a | 31.29 | 34.38 | a | 46.52 | b | ----- | z | 61.81 | j | 57.87 | a | 46.45 | a | 40.52 | 31.07 | c | 21.35 | e | 37.01 | b | ||
2006 | 23.00 | e | 26.81 | a | 27.80 | a | 36.37 | 49.15 | e | 53.62 | d | 60.97 | 54.60 | a | 46.62 | a | 35.71 | c | 24.89 | c | 19.14 | c | 38.22 | |||
2007 | 18.42 | 23.36 | 31.42 | 37.08 | d | ----- | z | 49.84 | e | 57.81 | 55.71 | c | 59.62 | f | 44.45 | b | 33.87 | ----- | z | 39.11 | c | |||||
2008 | 21.00 | n | 24.89 | a | 30.93 | c | 34.21 | b | 43.62 | b | 43.54 | b | 63.17 | a | ----- | z | 56.00 | 43.52 | 37.62 | a | 25.07 | b | 40.26 | b | ||
2009 | 31.10 | a | 29.82 | ----- | z | 39.04 | c | 55.13 | 58.50 | 67.77 | 61.68 | 59.23 | 43.26 | 35.23 | 28.45 | b | 46.29 | a | ||||||||
2010 | 30.90 | b | 33.63 | a | 35.78 | m | 40.47 | k | 48.00 | 59.83 | 67.70 | a | 65.26 | 58.57 | 52.48 | 34.97 | 34.10 | 48.54 | b | |||||||
2011 | 29.94 | 31.08 | c | 38.83 | a | 42.67 | 44.67 | y | 58.47 | 66.10 | 67.94 | 60.52 | a | 48.35 | 35.63 | 29.32 | 46.26 | a | ||||||||
2012 | 31.81 | 34.34 | 37.10 | 46.55 | a | 56.94 | 62.64 | p | 66.52 | j | 69.38 | o | 62.03 | 49.17 | a | 39.23 | 30.71 | 43.10 | c | |||||||
2013 | 30.41 | b | 31.00 | d | 41.65 | 46.10 | a | 53.87 | 63.27 | 71.94 | 65.77 | 59.04 | d | 44.97 | a | 38.24 | e | 29.19 | 47.95 | |||||||
2014 | 32.81 | 36.56 | a | 41.30 | a | 47.76 | e | 52.68 | 63.33 | 70.52 | 62.74 | 60.58 | d | 50.47 | n | 39.03 | 34.29 | c | 49.24 | a | ||||||
2015 | 35.65 | e | 37.91 | e | 43.97 | a | 43.07 | 50.74 | 64.17 | 63.71 | g | 68.84 | 62.58 | f | 55.29 | 35.11 | b | 27.81 | 46.26 | b | ||||||
2016 | 30.91 | h | 37.08 | e | 38.52 | d | 47.03 | 52.87 | h | 63.92 | f | 66.87 | p | 66.10 | 60.35 | j | 51.00 | n | 37.50 | h | 31.00 | u | 47.18 | h | ||
2017 | 32.57 | q | 41.94 | j | 41.85 | e | 44.03 | 50.96 | h | 60.12 | v | ----- | z | 66.94 | n | 58.88 | d | 46.25 | s | 39.95 | j | 33.23 | r | 48.25 | i | |
2018 | 35.86 | i | 32.73 | f | 38.84 | f | 47.25 | f | 54.50 | m | 59.92 | f | 70.80 | p | 65.38 | j | 55.46 | b | 46.48 | j | 36.25 | v | ----- | z | 55.46 | k |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.88 | 31.83 | 36.96 | 41.68 | 49.71 | 56.14 | 63.24 | 60.93 | 54.11 | 43.58 | 32.96 | 26.81 | 44.13 | |||||||||||||
S.D. | 3.59 | 4.12 | 4.17 | 4.58 | 4.36 | 4.88 | 4.17 | 4.40 | 4.49 | 4.45 | 4.73 | 4.02 | 3.67 | |||||||||||||
SKEW | -0.97 | -0.30 | -0.39 | 0.12 | 0.24 | -0.44 | 0.23 | -0.46 | -0.07 | 0.93 | -0.71 | 0.01 | -0.82 | |||||||||||||
MAX | 35.65 | 38.59 | 43.97 | 51.40 | 58.17 | 64.17 | 71.94 | 68.84 | 62.03 | 55.29 | 39.23 | 34.29 | 47.95 | |||||||||||||
MIN | 18.42 | 23.36 | 27.80 | 34.21 | 43.46 | 43.54 | 55.00 | 49.42 | 46.45 | 35.71 | 21.83 | 19.14 | 38.22 | |||||||||||||
YRS | 26 | 27 | 26 | 27 | 24 | 21 | 21 | 26 | 27 | 23 | 24 | 23 | 5 |