YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.24 | f | ----- | z |
1994 | 16.17 | g | 13.14 | g | 24.07 | a | 24.56 | u | 32.96 | d | 43.96 | b | 47.17 | a | 47.81 | d | 36.59 | a | 26.75 | g | 12.56 | c | 14.11 | d | 32.40 | d |
1995 | 16.14 | b | 18.29 | 19.48 | 22.69 | a | 29.64 | c | 35.57 | 41.90 | a | 44.32 | 39.83 | 29.19 | e | 28.18 | b | 18.55 | b | 28.65 | ||||||
1996 | 21.77 | a | 19.14 | a | 19.76 | b | 25.27 | 34.81 | 39.93 | 47.00 | a | 45.41 | b | 36.57 | 26.77 | 22.41 | a | 21.18 | c | 30.00 | ||||||
1997 | 16.30 | d | 15.12 | c | 24.80 | a | 26.70 | 36.77 | 41.67 | 42.13 | a | 45.57 | a | ----- | z | 26.56 | d | 22.38 | a | 10.11 | d | 28.01 | a | |||
1998 | 19.21 | b | 13.22 | a | 20.00 | b | 20.57 | b | 27.13 | 36.10 | a | 45.30 | a | 44.03 | b | ----- | z | 26.85 | e | 22.30 | c | 12.74 | d | 26.13 | a | |
1999 | 18.10 | a | 13.08 | c | 21.94 | 22.07 | 32.48 | 37.83 | 45.00 | c | 40.00 | a | 36.23 | 28.57 | a | 23.57 | b | 16.40 | a | 27.94 | ||||||
2000 | 21.23 | a | 18.21 | a | 19.67 | a | 28.40 | 36.52 | 41.00 | a | 45.22 | v | 45.20 | a | 36.30 | 28.40 | a | 16.07 | a | 20.70 | a | 28.34 | a | |||
2001 | 10.73 | a | 14.00 | a | 20.88 | w | 22.86 | b | 36.00 | 44.17 | 45.52 | 47.68 | 40.00 | 31.97 | a | 23.26 | c | 15.42 | e | 30.15 | a | |||||
2002 | 13.44 | f | 17.24 | c | 17.26 | 26.07 | 32.73 | a | 40.77 | 47.84 | 44.03 | 37.40 | 26.67 | a | 23.07 | a | 15.17 | a | 29.84 | a | ||||||
2003 | 20.87 | a | 16.11 | 21.68 | 23.34 | a | 32.68 | 40.60 | 48.84 | 46.47 | a | 40.23 | 33.45 | 18.76 | a | 14.57 | a | 29.80 | ||||||||
2004 | 12.57 | a | 13.38 | 24.48 | 27.70 | 33.69 | b | 40.23 | 47.68 | 44.55 | 36.59 | a | 25.13 | a | 18.83 | a | 16.00 | a | 28.40 | |||||||
2005 | 14.57 | a | 16.96 | a | 20.23 | 22.93 | 33.19 | 37.60 | 49.19 | 44.93 | a | 34.10 | 30.08 | e | 25.23 | d | 18.76 | f | 29.91 | a | ||||||
2006 | 15.10 | b | 14.50 | 13.03 | 24.07 | c | 33.34 | b | 42.52 | a | 49.00 | a | 43.15 | d | 36.76 | e | 27.62 | g | 28.26 | k | 16.95 | i | 30.16 | c | ||
2007 | 10.43 | j | 19.23 | f | 22.13 | h | 29.08 | e | 34.32 | 42.67 | c | 50.65 | 50.12 | e | 38.68 | b | 28.18 | i | 24.33 | f | 16.57 | h | 40.92 | f | ||
2008 | 12.22 | h | 14.19 | h | 20.90 | k | 26.08 | d | 32.93 | c | 41.62 | a | 48.69 | b | 49.53 | n | 37.25 | f | 28.68 | i | 25.28 | e | 16.04 | g | 34.92 | g |
2009 | 15.73 | a | 17.23 | f | 18.90 | k | 25.20 | e | 38.10 | a | 38.53 | 47.87 | a | 44.14 | c | 41.37 | c | 26.40 | f | 21.92 | e | 13.20 | k | 34.11 | d | |
2010 | 15.77 | i | 17.83 | e | 16.60 | k | 21.04 | g | 28.77 | e | 42.11 | c | 46.30 | a | 43.07 | d | 38.84 | e | 33.62 | g | 21.52 | g | 22.64 | f | 36.15 | f |
2011 | 15.47 | l | 11.30 | e | 22.46 | e | 26.50 | d | 29.86 | b | 39.77 | 45.77 | a | 45.39 | c | 40.50 | b | 31.26 | 21.48 | g | 14.70 | a | 30.75 | b | ||
2012 | 22.17 | a | 16.96 | b | 24.45 | 28.37 | 36.97 | 42.90 | a | 48.28 | b | 49.18 | c | 43.79 | f | 32.23 | a | 26.28 | a | 18.00 | b | 31.43 | a | |||
2013 | 11.93 | a | 18.07 | 26.39 | 30.00 | 36.29 | 42.86 | a | 53.00 | 45.32 | 42.48 | a | 24.42 | s | 25.03 | 15.71 | 31.55 | a | ||||||||
2014 | 22.48 | 24.86 | 25.32 | 30.03 | 33.67 | d | 44.03 | 52.93 | a | 50.97 | 47.70 | 35.26 | 26.17 | 22.84 | 34.69 | |||||||||||
2015 | 21.42 | 25.68 | 25.81 | 26.93 | 33.35 | 47.17 | 46.61 | 49.61 | 43.70 | 34.58 | 17.30 | 15.81 | 32.33 | |||||||||||||
2016 | 14.16 | 19.10 | 26.19 | 29.50 | 34.06 | 45.87 | 50.06 | 48.13 | 39.27 | 34.42 | 24.89 | b | 23.30 | k | 33.24 | a | ||||||||||
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.17 | x | 52.06 | 48.22 | m | 38.10 | a | 27.07 | a | 30.63 | 19.74 | 33.52 | g | |||
2018 | 21.97 | a | 14.61 | 17.97 | 30.72 | a | 35.58 | 43.21 | p | 52.17 | y | 48.58 | 41.73 | 28.86 | c | 22.60 | 19.05 | i | 29.18 | c | ||||||
2019 | 18.74 | 13.14 | g | 22.69 | r | 30.80 | 31.62 | b | 43.67 | f | ----- | z | ----- | z | ----- | z | 14.56 | v | ----- | z | 16.96 | f | 27.05 | i | ||
2020 | 21.77 | e | 22.17 | k | 25.00 | q | ----- | z | 30.50 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.20 | u | 21.77 | k |
2021 | 20.82 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 17.85 | 16.88 | 21.84 | 26.34 | 33.50 | 41.28 | 47.77 | 45.99 | 39.19 | 29.85 | 22.70 | 16.57 | 30.26 | |||||||||||||
S.D. | 3.83 | 3.64 | 3.57 | 3.01 | 2.68 | 2.91 | 2.90 | 2.65 | 3.11 | 3.18 | 4.18 | 3.25 | 2.44 | |||||||||||||
SKEW | -0.34 | 0.94 | -0.66 | -0.17 | -0.51 | -0.13 | -0.08 | 0.05 | 0.89 | 0.33 | -0.56 | 0.18 | 0.90 | |||||||||||||
MAX | 22.48 | 25.68 | 26.39 | 30.80 | 38.10 | 47.17 | 53.00 | 50.97 | 47.70 | 35.26 | 30.63 | 22.84 | 34.69 | |||||||||||||
MIN | 10.73 | 11.30 | 13.03 | 20.57 | 27.13 | 35.57 | 41.90 | 40.00 | 34.10 | 25.13 | 12.56 | 10.11 | 27.94 | |||||||||||||
YRS | 20 | 20 | 19 | 23 | 25 | 23 | 23 | 23 | 21 | 18 | 21 | 17 | 7 |