YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.20 | 41.90 | 28.67 | 16.16 | 32.98 | h | ||||
1989 | 19.90 | 23.86 | 32.03 | 39.10 | 44.74 | 50.77 | 53.65 | 51.94 | 47.10 | 37.00 | 29.33 | 22.39 | 37.65 | |||||||||||||
1990 | 19.06 | 19.43 | 28.00 | 34.43 | 40.58 | 54.45 | a | 52.55 | 49.58 | 48.70 | 37.68 | 26.70 | 18.45 | 35.80 | ||||||||||||
1991 | 20.55 | 25.79 | 23.65 | 31.80 | 40.48 | 48.10 | 52.20 | a | 52.29 | 47.30 | 39.16 | 27.23 | 22.39 | 35.91 | ||||||||||||
1992 | 16.90 | 24.28 | 28.23 | 37.77 | 42.00 | 48.47 | 52.45 | 51.58 | 48.43 | 40.23 | 18.77 | 18.48 | 35.63 | |||||||||||||
1993 | 23.17 | a | 22.59 | a | 28.19 | 32.67 | 40.90 | 49.70 | 54.16 | 52.10 | a | 46.10 | 36.39 | 26.53 | 20.71 | 36.10 | ||||||||||
1994 | 21.97 | a | 21.75 | 28.71 | 32.83 | 40.23 | 54.18 | b | 51.77 | 53.03 | 46.03 | 33.77 | 23.00 | 21.34 | b | 35.72 | ||||||||||
1995 | 19.07 | c | 25.43 | 24.68 | 27.40 | 36.34 | b | 44.00 | 51.71 | 52.30 | a | 45.97 | a | 35.32 | 32.00 | a | 24.03 | 34.85 | ||||||||
1996 | 22.52 | b | 27.92 | c | 26.74 | 33.76 | a | 47.10 | 53.87 | 55.68 | 53.45 | 44.97 | a | 37.63 | a | 29.03 | 20.30 | a | 37.75 | |||||||
1997 | 19.59 | b | 22.04 | a | 29.35 | 30.03 | 43.58 | 49.77 | 53.40 | a | 52.61 | 49.27 | ----- | z | 27.52 | a | 16.68 | 35.80 | a | |||||||
1998 | 23.00 | 19.93 | 25.00 | 27.90 | 38.90 | ----- | z | 53.17 | b | 53.23 | a | 48.90 | 36.23 | 29.10 | ----- | z | 35.54 | b | ||||||||
1999 | 22.94 | 22.11 | 26.16 | 28.23 | 38.68 | 47.03 | 52.74 | 51.32 | 45.27 | 37.45 | ----- | z | 15.42 | 35.21 | a | |||||||||||
2000 | 24.41 | b | 25.81 | b | 25.10 | 31.31 | a | 41.81 | ----- | z | 53.55 | 53.16 | ----- | z | 37.29 | c | 20.53 | 23.16 | 33.61 | b | ||||||
2001 | 16.42 | 21.89 | a | 27.00 | b | 31.77 | ----- | z | 49.57 | 53.32 | c | 51.81 | 48.07 | 39.90 | 27.14 | a | 17.10 | b | 34.91 | a | ||||||
2002 | 18.67 | j | 19.19 | a | 22.86 | c | 39.03 | 40.73 | a | 51.97 | a | 52.77 | 55.07 | a | 45.71 | f | ----- | z | 27.59 | a | 19.93 | b | 36.57 | c | ||
2003 | 26.65 | 21.79 | ----- | z | 31.50 | 41.81 | 50.37 | 57.45 | 52.97 | 47.90 | 41.94 | 28.00 | 21.77 | 38.38 | a | |||||||||||
2004 | ----- | z | 19.10 | 31.87 | 33.20 | 45.06 | 50.27 | 54.58 | 51.68 | 45.97 | 35.97 | 27.37 | 21.74 | 37.89 | a | |||||||||||
2005 | 26.42 | 25.36 | 27.03 | 32.47 | 43.45 | 48.70 | 56.89 | d | 50.93 | a | 46.77 | 36.97 | a | 28.93 | 23.13 | a | 37.25 | |||||||||
2006 | 18.96 | c | 22.18 | 22.37 | a | 32.19 | c | 44.77 | 50.47 | 51.84 | 48.79 | c | 39.14 | a | 32.79 | g | 24.73 | 14.33 | a | 33.61 | a | |||||
2007 | 9.55 | 19.11 | 30.95 | i | 35.14 | a | 43.16 | 53.53 | 55.45 | 55.75 | c | 49.00 | 37.65 | 32.57 | 18.77 | 37.24 | a | |||||||||
2008 | 15.35 | 23.07 | 26.45 | 32.00 | a | 39.39 | 51.87 | 53.94 | 53.10 | 45.90 | 37.31 | b | 27.80 | 21.10 | a | 35.61 | ||||||||||
2009 | 22.23 | 23.46 | 27.67 | a | ----- | z | 42.55 | 46.78 | c | 54.94 | 50.83 | a | 43.50 | 31.84 | ----- | z | 16.29 | 36.01 | b | |||||||
2010 | 17.60 | a | 17.52 | a | 21.74 | 30.87 | 36.89 | d | 49.29 | b | 53.31 | b | 50.27 | a | 49.19 | n | 36.97 | a | 23.45 | a | 25.26 | 33.01 | a | |||
2011 | 16.37 | a | 14.43 | ----- | z | 32.14 | b | 35.55 | b | 49.17 | 52.13 | a | 52.23 | r | 44.07 | a | 33.00 | b | 24.00 | 15.06 | 31.59 | b | ||||
2012 | 19.04 | e | 17.93 | n | 24.76 | j | 33.37 | 40.90 | a | 51.31 | d | 51.66 | b | 50.45 | b | 43.81 | i | 29.24 | j | ----- | z | ----- | z | 41.12 | f | |
2013 | 11.71 | ----- | z | ----- | z | ----- | z | ----- | z | 50.63 | 49.48 | b | 48.71 | 43.67 | 31.00 | 23.27 | 14.26 | 34.09 | d | |||||||
2014 | 21.73 | p | 24.22 | a | 24.22 | h | 28.63 | ----- | z | 51.30 | 51.52 | b | ----- | z | ----- | z | 37.19 | 23.42 | k | 13.40 | p | 38.57 | g | |||
2015 | 17.55 | 22.32 | 24.83 | b | 28.00 | d | 33.59 | b | 47.60 | 48.81 | 49.58 | 45.30 | ----- | z | ----- | z | ----- | z | 35.29 | c | ||||||
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.44 | u | 52.86 | x | 44.71 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.10 | b | 26.10 | k |
2018 | 23.52 | 26.21 | 27.08 | f | 36.21 | a | 44.87 | a | 54.43 | 55.16 | 53.48 | 49.90 | 36.47 | a | 25.23 | 21.16 | f | 40.55 | b | |||||||
2019 | 20.67 | a | 20.43 | 27.77 | 34.76 | a | 37.03 | 44.37 | 54.26 | 56.94 | 47.87 | 31.97 | 26.44 | e | 22.52 | 35.42 | ||||||||||
2020 | 21.06 | 22.59 | b | 29.55 | 35.37 | 45.48 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.81 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.86 | 22.28 | 26.74 | 32.64 | 41.13 | 50.07 | 53.26 | 52.11 | 46.41 | 36.73 | 26.60 | 19.88 | 36.15 | |||||||||||||
S.D. | 3.98 | 2.96 | 2.73 | 3.15 | 3.35 | 2.76 | 1.91 | 1.96 | 2.35 | 2.82 | 3.19 | 3.42 | 0.96 | |||||||||||||
SKEW | -0.61 | -0.46 | 0.05 | 0.29 | -0.37 | -0.29 | -0.02 | 0.38 | -1.05 | -0.23 | -0.51 | -0.10 | 0.68 | |||||||||||||
MAX | 26.65 | 27.92 | 32.03 | 39.10 | 47.10 | 54.45 | 57.45 | 56.94 | 49.90 | 41.94 | 32.57 | 26.10 | 37.75 | |||||||||||||
MIN | 9.55 | 14.43 | 21.74 | 27.40 | 33.59 | 44.00 | 48.81 | 48.71 | 39.14 | 31.00 | 18.77 | 14.26 | 34.85 | |||||||||||||
YRS | 27 | 28 | 23 | 28 | 27 | 27 | 29 | 27 | 25 | 25 | 25 | 26 | 11 |