YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 81.67 | y | 73.31 | a | 59.52 | 34.00 | 12.23 | 44.76 | h | |||
2001 | 25.90 | 15.18 | 32.84 | 52.57 | 70.26 | 76.87 | 84.39 | 85.29 | 71.43 | 56.65 | 51.77 | 28.90 | 54.34 | |||||||||||||
2002 | 27.23 | 36.89 | 30.00 | 50.93 | 64.06 | 81.67 | 84.74 | 79.29 | 76.53 | 46.87 | 39.10 | 30.48 | 53.98 | |||||||||||||
2003 | 20.35 | 22.36 | 38.13 | 58.47 | 66.33 | a | 75.60 | 83.06 | 85.94 | 72.50 | 63.06 | 34.23 | 28.65 | 54.06 | ||||||||||||
2004 | 15.65 | 24.86 | 42.84 | 59.67 | 63.90 | 72.67 | 79.58 | 75.00 | 73.40 | 59.36 | i | 45.07 | 29.94 | 52.96 | a | |||||||||||
2005 | 17.26 | 30.14 | 39.65 | 61.80 | 64.23 | 77.33 | 82.45 | 79.29 | 75.10 | 59.94 | 41.93 | 23.77 | 54.41 | |||||||||||||
2006 | 31.26 | 23.25 | 34.87 | 60.27 | 67.65 | 78.90 | 88.61 | 82.57 | a | 67.70 | 53.53 | a | 42.57 | 34.81 | 55.50 | |||||||||||
2007 | 23.73 | a | 16.00 | 40.26 | 50.67 | 71.13 | 78.80 | 84.45 | 77.48 | 72.87 | 59.68 | 40.90 | 20.77 | 53.06 | ||||||||||||
2008 | 17.07 | a | 19.38 | 34.42 | 51.10 | 66.42 | 74.57 | 83.52 | 83.10 | 73.10 | 56.71 | 39.97 | 17.06 | 51.37 | ||||||||||||
2009 | 13.55 | 21.07 | 30.94 | 51.13 | 67.45 | 73.90 | 77.35 | 77.48 | 74.90 | 46.81 | 47.27 | 17.77 | 49.97 | |||||||||||||
2010 | 15.71 | 17.46 | 40.84 | 62.97 | 66.26 | 76.60 | 83.29 | 83.77 | 67.10 | 62.06 | 39.53 | 17.52 | 52.76 | |||||||||||||
2011 | 12.87 | 20.71 | 28.52 | 50.67 | 63.81 | 74.70 | 85.58 | 81.45 | 72.37 | 62.13 | 43.77 | 33.58 | 52.51 | |||||||||||||
2012 | 29.97 | 31.83 | 52.06 | 58.27 | 71.35 | 79.90 | 87.74 | 81.10 | 75.43 | 54.19 | 39.80 | 22.10 | 56.98 | |||||||||||||
2013 | 22.68 | 19.89 | 26.13 | 39.97 | 66.16 | 75.53 | 81.65 | 82.03 | 76.00 | 52.90 | 38.20 | 16.06 | 49.77 | |||||||||||||
2014 | 18.13 | 16.18 | 34.32 | 50.57 | 66.29 | 76.23 | 78.74 | 79.00 | 72.60 | 60.10 | 30.23 | 27.29 | 50.81 | |||||||||||||
2015 | 25.13 | 16.82 | 43.39 | 60.47 | 65.81 | 78.20 | 83.06 | 81.74 | 78.00 | 61.42 | 46.80 | 29.48 | 55.86 | |||||||||||||
2016 | 21.84 | 31.07 | 48.26 | 55.67 | 72.23 | 80.97 | 82.42 | 82.48 | 73.23 | 59.10 | 51.10 | 22.90 | 56.77 | |||||||||||||
2017 | 20.87 | 34.21 | 38.77 | 57.40 | 67.97 | 80.43 | 85.00 | 77.29 | 72.87 | 60.58 | 37.87 | 25.84 | 54.93 | |||||||||||||
2018 | 20.68 | 18.57 | 34.81 | 43.73 | 77.48 | 80.87 | 81.48 | 79.10 | 71.10 | 49.84 | 30.63 | 29.32 | 51.47 | |||||||||||||
2019 | 15.19 | 8.25 | 29.23 | 51.60 | 61.81 | 77.73 | 82.29 | 76.94 | 72.10 | 49.29 | 34.90 | 24.35 | 48.64 | |||||||||||||
2020 | 21.16 | 25.28 | 40.00 | 50.43 | 64.77 | 82.00 | 84.13 | 81.97 | 70.00 | 50.45 | 45.73 | 32.84 | 54.06 | |||||||||||||
2021 | 27.52 | 15.64 | 48.45 | 52.70 | 69.29 | 86.63 | 86.26 | 84.45 | 76.83 | 61.29 | 42.07 | 26.29 | 56.45 | |||||||||||||
2022 | 17.16 | 20.21 | 35.87 | 44.33 | 65.94 | 81.30 | 84.58 | 82.10 | 76.60 | 60.29 | 36.10 | 26.07 | p | 54.95 | a | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.95 | 22.06 | 37.48 | 53.43 | 67.30 | 78.25 | 83.38 | 80.86 | 73.26 | 56.65 | 40.59 | 25.09 | 53.38 | |||||||||||||
S.D. | 5.27 | 7.10 | 6.83 | 6.09 | 3.53 | 3.30 | 2.67 | 2.92 | 2.75 | 5.26 | 5.81 | 6.20 | 2.44 | |||||||||||||
SKEW | 0.33 | 0.46 | 0.38 | -0.34 | 1.10 | 0.49 | -0.30 | -0.17 | -0.44 | -0.64 | 0.10 | -0.37 | -0.31 | |||||||||||||
MAX | 31.26 | 36.89 | 52.06 | 62.97 | 77.48 | 86.63 | 88.61 | 85.94 | 78.00 | 63.06 | 51.77 | 34.81 | 56.98 | |||||||||||||
MIN | 12.87 | 8.25 | 26.13 | 39.97 | 61.81 | 72.67 | 77.35 | 75.00 | 67.10 | 46.81 | 30.23 | 12.23 | 48.64 | |||||||||||||
YRS | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 23 | 22 | 20 |