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 | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9.50 | i | ----- | z |
2004 | 11.33 | d | 11.50 | a | 23.78 | h | 31.96 | b | 41.32 | 49.15 | d | 56.32 | 53.14 | b | 46.04 | b | 33.85 | d | 21.07 | c | 17.00 | e | 33.88 | a | ||
2005 | 15.16 | f | 17.74 | e | 20.13 | 30.37 | 39.14 | b | 49.31 | a | 56.80 | f | 54.10 | 46.13 | 33.65 | 22.53 | 9.23 | a | 32.23 | b | ||||||
2006 | 15.48 | 9.14 | 18.70 | a | 28.03 | 38.41 | b | 52.28 | a | 59.77 | a | 57.00 | 41.30 | 31.41 | b | 19.30 | c | 9.86 | b | 31.72 | ||||||
2007 | -3.60 | a | 8.96 | 29.03 | 29.73 | 43.03 | 50.45 | h | 59.47 | a | 58.97 | a | 47.53 | 32.20 | a | 18.17 | 3.52 | 29.73 | a | |||||||
2008 | 4.19 | 14.75 | a | 21.77 | 25.24 | a | 37.38 | b | 47.33 | 57.06 | 56.97 | 43.90 | 31.81 | 23.17 | 4.94 | 30.71 | ||||||||||
2009 | 13.84 | 14.61 | 19.32 | 28.89 | b | 42.32 | 50.10 | 55.39 | 52.79 | b | 46.97 | 28.23 | 21.50 | 6.79 | b | 31.73 | ||||||||||
2010 | 12.63 | a | 11.89 | 23.65 | 30.93 | 36.65 | 52.27 | 57.45 | 57.10 | 44.47 | 33.39 | 18.73 | 13.00 | 32.68 | ||||||||||||
2011 | 7.32 | 6.82 | 23.00 | 29.83 | 35.90 | 49.47 | 59.10 | 57.39 | 43.37 | 30.48 | 17.00 | 7.26 | 30.58 | |||||||||||||
2012 | 10.68 | 12.21 | 24.26 | 34.43 | 39.48 | 53.37 | 58.55 | 53.61 | 45.47 | 30.16 | 20.93 | 9.61 | 32.73 | |||||||||||||
2013 | 7.16 | 10.61 | 17.26 | 25.17 | 37.74 | 49.70 | 57.71 | 55.65 | 51.10 | 31.39 | 20.70 | 7.13 | 30.94 | |||||||||||||
2014 | 8.26 | 6.82 | 20.65 | 31.13 | 39.68 | 49.70 | 57.35 | 54.45 | 46.63 | 33.61 | 14.57 | 10.00 | 31.07 | |||||||||||||
2015 | 10.87 | 17.25 | 23.29 | 31.17 | 41.06 | 54.97 | 54.74 | 53.77 | 45.97 | 37.42 | 19.53 | 9.87 | 33.33 | |||||||||||||
2016 | 10.48 | 16.79 | 22.26 | 30.27 | 38.58 | 52.47 | 55.81 | 51.19 | 44.40 | 32.10 | 23.30 | 5.74 | 31.95 | |||||||||||||
2017 | 9.52 | 19.68 | 25.10 | 31.33 | 38.32 | 49.10 | 57.32 | 53.32 | 46.23 | 29.58 | 22.27 | 8.65 | 32.53 | |||||||||||||
2018 | 8.84 | 9.32 | 19.90 | 26.17 | 45.03 | 51.17 | 58.06 | 52.74 | 46.53 | 31.16 | 18.50 | 10.68 | 31.51 | |||||||||||||
2019 | 7.97 | 7.50 | 18.61 | 30.93 | 34.74 | 47.10 | 57.39 | 56.77 | 48.87 | 24.29 | 16.87 | 15.23 | 30.52 | |||||||||||||
2020 | 14.03 | 10.31 | 24.84 | 24.60 | 41.03 | 50.50 | 57.94 | 57.10 | 42.43 | 25.45 | 20.10 | 10.32 | 31.55 | |||||||||||||
2021 | 15.48 | 10.86 | 22.16 | 26.97 | 43.71 | 52.70 | 58.10 | 54.61 | 47.50 | 32.35 | 22.30 | 12.32 | 33.26 | |||||||||||||
2022 | 5.55 | 8.39 | 19.00 | 25.97 | 37.81 | 51.60 | 59.71 | 58.39 | 47.03 | 30.61 | 14.37 | 6.61 | 30.42 | |||||||||||||
2023 | 6.45 | 3.36 | 18.03 | 25.57 | 44.23 | 51.73 | 56.58 | 55.10 | 44.70 | 30.13 | 18.37 | 14.71 | 30.75 | |||||||||||||
2024 | 7.90 | 18.79 | 19.97 | 27.96 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.55 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 9.22 | 11.78 | 21.55 | 28.93 | 39.78 | 50.74 | 57.57 | 55.21 | 45.83 | 31.16 | 19.66 | 9.62 | 31.65 | |||||||||||||
S.D. | 4.40 | 4.44 | 2.94 | 2.79 | 2.86 | 2.03 | 1.41 | 2.15 | 2.22 | 2.91 | 2.63 | 3.53 | 0.97 | |||||||||||||
SKEW | -0.99 | 0.22 | 0.70 | -0.07 | 0.23 | 0.08 | -0.19 | 0.03 | 0.13 | -0.51 | -0.50 | 0.37 | 0.39 | |||||||||||||
MAX | 15.48 | 19.68 | 29.03 | 34.43 | 45.03 | 54.97 | 59.77 | 58.97 | 51.10 | 37.42 | 23.30 | 17.00 | 33.33 | |||||||||||||
MIN | -3.60 | 3.36 | 17.26 | 24.60 | 34.74 | 47.10 | 54.74 | 51.19 | 41.30 | 24.29 | 14.37 | 3.52 | 30.42 | |||||||||||||
YRS | 20 | 21 | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 17 |