YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1991 | ----- | z | ----- | z | 35.15 | ----- | z | ----- | z | 60.97 | 68.24 | 68.52 | 60.27 | 52.53 | 33.45 | 26.76 | 50.73 | d | ||||||||
1992 | 22.67 | a | 32.36 | a | 40.83 | a | 50.47 | 56.11 | 61.27 | 65.65 | 66.15 | 60.22 | 52.68 | a | 31.82 | 22.15 | 46.86 | |||||||||
1993 | 28.05 | a | 30.36 | 40.40 | a | 45.75 | 55.03 | 61.09 | a | 67.18 | a | 65.70 | a | 58.08 | 47.94 | 32.48 | 27.11 | 46.60 | ||||||||
1994 | 28.96 | d | 26.85 | a | 42.53 | b | 46.12 | 55.26 | b | 66.67 | 69.27 | a | 69.90 | 61.58 | 46.68 | 33.04 | b | 32.05 | b | 48.24 | ||||||
1995 | 26.19 | 38.06 | a | 39.80 | a | 42.82 | 49.95 | 59.57 | 67.55 | 70.23 | 60.87 | 49.97 | a | 41.42 | 31.77 | 48.18 | ||||||||||
1996 | 27.28 | a | 35.62 | 40.33 | a | 48.22 | a | 58.95 | a | 67.32 | 71.47 | 69.10 | 58.05 | a | 49.55 | b | 37.98 | a | 28.15 | 49.34 | ||||||
1997 | 25.95 | 30.77 | 41.89 | 44.11 | b | 56.32 | a | 62.79 | a | 68.00 | a | 67.21 | 62.43 | 48.47 | 37.45 | 26.79 | 47.68 | |||||||||
1998 | 29.06 | 29.86 | 38.80 | a | 43.95 | b | 54.57 | b | 60.83 | 70.69 | 68.82 | a | 64.03 | 48.91 | b | 38.63 | 31.10 | 48.27 | ||||||||
1999 | 32.69 | 36.55 | 43.29 | 44.02 | 53.08 | e | 60.19 | a | 68.95 | 65.97 | 59.07 | 52.40 | 43.82 | 29.74 | 49.15 | |||||||||||
2000 | 30.86 | b | 36.41 | a | 39.52 | a | 51.22 | 58.90 | b | 66.58 | 71.58 | 70.63 | 63.21 | b | 49.74 | b | 31.84 | a | 30.23 | 50.06 | ||||||
2001 | 26.77 | a | 31.12 | 40.27 | 48.28 | 60.15 | a | 66.28 | 71.63 | 67.55 | 64.75 | 51.77 | a | 40.92 | 26.10 | 49.63 | ||||||||||
2002 | 26.73 | 30.74 | a | 38.17 | b | 52.09 | a | 57.45 | 69.88 | a | 72.90 | 69.64 | b | 61.20 | b | 47.97 | 37.90 | 28.69 | b | 49.45 | ||||||
2003 | 34.63 | a | 32.46 | a | 39.52 | b | 46.53 | 58.12 | b | 64.35 | 74.89 | 70.37 | 61.75 | b | 56.07 | d | 38.35 | c | 30.21 | b | 50.60 | |||||
2004 | 27.81 | b | 28.62 | 46.37 | a | 47.38 | e | 56.82 | a | 65.21 | a | 68.92 | 66.02 | b | 58.81 | a | 48.42 | a | 37.67 | a | 30.98 | 48.59 | ||||
2005 | 32.78 | a | 35.16 | 38.44 | 47.93 | b | 56.50 | 61.98 | 72.45 | 67.77 | 61.37 | 51.34 | 39.45 | 28.98 | 49.51 | |||||||||||
2006 | 31.13 | 34.14 | 37.83 | a | 49.28 | 58.60 | 67.65 | 71.42 | 67.89 | 56.82 | 47.98 | 41.36 | b | 29.08 | 49.43 | |||||||||||
2007 | 27.90 | a | 34.11 | a | 44.03 | 47.93 | 55.55 | 66.90 | 72.82 | 70.23 | 61.63 | 51.42 | 42.38 | 25.53 | a | 50.04 | ||||||||||
2008 | 21.56 | 29.12 | a | 39.89 | 46.47 | 54.74 | b | 63.87 | d | 68.87 | 69.15 | 60.22 | 50.50 | 39.34 | b | 26.55 | a | 47.52 | ||||||||
2009 | 26.37 | 32.21 | 40.02 | b | 45.45 | 57.25 | a | 60.78 | 70.15 | 67.02 | 59.36 | a | 43.19 | 38.80 | 18.32 | 46.58 | ||||||||||
2010 | 22.69 | b | 26.70 | 35.82 | 45.79 | a | 53.32 | 64.62 | b | 70.10 | 66.43 | d | 62.03 | 51.35 | a | 33.17 | 30.38 | b | 46.87 | |||||||
2011 | 22.32 | a | ----- | z | 40.40 | a | 45.77 | 50.37 | 62.85 | 71.24 | b | 70.31 | 61.63 | 48.44 | 25.77 | ----- | z | 49.91 | b | |||||||
2012 | 29.00 | 39.02 | a | ----- | z | 51.82 | k | 55.27 | ----- | z | 69.47 | a | 69.32 | a | 62.10 | f | 50.12 | c | 39.12 | m | ----- | z | 52.03 | f | ||
2013 | 19.82 | a | 26.84 | 36.82 | 43.52 | 53.85 | 66.36 | a | 71.03 | m | 67.90 | 61.67 | 46.37 | 39.62 | j | 24.13 | 44.73 | b | ||||||||
2014 | 28.42 | 34.48 | 38.50 | 46.42 | 53.95 | 65.02 | 71.53 | 66.27 | 63.91 | a | 52.53 | 37.95 | 31.69 | 49.22 | ||||||||||||
2015 | 29.77 | 38.20 | 41.32 | 46.22 | 52.95 | 61.38 | 67.90 | 66.34 | 63.75 | r | 53.48 | 37.97 | 28.35 | d | 47.63 | a | ||||||||||
2016 | 22.66 | 21.34 | ----- | z | 42.85 | m | 50.39 | q | 67.25 | 68.60 | 65.40 | f | 59.56 | n | 51.90 | 42.85 | c | 29.81 | w | 45.77 | f | |||||
2017 | 27.35 | u | 40.94 | c | 37.39 | l | 44.79 | p | ----- | z | 62.83 | d | 63.27 | 65.50 | n | 58.00 | j | 50.66 | o | 42.56 | v | 33.50 | y | 55.68 | i | |
2018 | 30.21 | l | 33.18 | i | 37.65 | n | 47.04 | q | 54.65 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.28 | 32.48 | 40.00 | 46.77 | 55.54 | 64.02 | 69.80 | 68.18 | 61.00 | 50.07 | 37.33 | 28.04 | 48.59 | |||||||||||||
S.D. | 3.76 | 4.58 | 2.52 | 2.43 | 2.58 | 2.83 | 2.49 | 1.65 | 2.02 | 2.68 | 4.31 | 3.32 | 1.24 | |||||||||||||
SKEW | -0.13 | -0.28 | 0.39 | 0.48 | -0.34 | 0.16 | -0.43 | -0.02 | -0.14 | -0.26 | -0.79 | -1.21 | -0.29 | |||||||||||||
MAX | 34.63 | 40.94 | 46.37 | 52.09 | 60.15 | 69.88 | 74.89 | 70.63 | 64.75 | 56.07 | 43.82 | 32.05 | 50.60 | |||||||||||||
MIN | 19.82 | 21.34 | 35.15 | 42.82 | 49.95 | 59.57 | 63.27 | 65.70 | 56.82 | 43.19 | 25.77 | 18.32 | 46.58 | |||||||||||||
YRS | 25 | 25 | 24 | 23 | 24 | 26 | 26 | 25 | 23 | 26 | 24 | 23 | 20 |