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 | 57.17 | y | 46.38 | a | 38.48 | 19.33 | -4.52 | 24.92 | h | |||
2001 | 8.61 | -4.18 | 16.26 | 33.37 | 47.77 | 56.50 | 61.65 | 59.90 | 48.77 | 35.06 | 32.31 | a | 15.06 | 34.26 | ||||||||||||
2002 | 10.23 | 15.25 | 9.10 | 29.77 | 38.94 | 58.47 | 62.65 | 57.52 | 51.73 | 31.23 | 21.67 | 13.52 | 33.34 | |||||||||||||
2003 | 2.55 | 0.61 | 13.29 | 32.93 | 43.73 | a | 54.67 | 59.77 | 60.94 | 46.33 | 37.42 | 18.80 | 14.52 | 32.13 | ||||||||||||
2004 | -2.13 | 7.34 | 22.81 | 30.77 | 41.65 | 51.57 | 58.26 | 51.90 | 51.30 | 37.77 | i | 26.70 | 12.48 | 32.06 | a | |||||||||||
2005 | -1.19 | 11.86 | 17.35 | 35.27 | 43.52 | 59.63 | 61.48 | 57.87 | 52.37 | 38.35 | 26.10 | 12.03 | 34.55 | |||||||||||||
2006 | 18.48 | 4.11 | 20.87 | 38.07 | 47.68 | 57.07 | 63.71 | 59.27 | a | 47.23 | 33.32 | 21.87 | 15.52 | 35.60 | ||||||||||||
2007 | 5.37 | a | -0.29 | 22.84 | 31.20 | 48.58 | 59.07 | 63.58 | 57.45 | 49.73 | 40.45 | 23.53 | 3.19 | 33.73 | ||||||||||||
2008 | -1.32 | -1.10 | 15.68 | 28.93 | 41.29 | 54.67 | 59.81 | 59.26 | 49.40 | 37.00 | 24.03 | -1.90 | 30.48 | |||||||||||||
2009 | -6.45 | 2.75 | 13.19 | 31.03 | 42.13 | 54.50 | 57.00 | 56.13 | 53.43 | 34.45 | 29.87 | 5.16 | 31.10 | |||||||||||||
2010 | 1.65 | 2.04 | 25.16 | 38.83 | 46.97 | 56.00 | 61.90 | 61.61 | 47.47 | 39.55 | 21.87 | 3.13 | 33.85 | |||||||||||||
2011 | -4.00 | 3.79 | 11.35 | 34.00 | 44.13 | 55.93 | 65.55 | 60.03 | 48.13 | 40.26 | 23.07 | 15.97 | 33.18 | |||||||||||||
2012 | 10.84 | 11.72 | 29.16 | 36.00 | 48.29 | 57.67 | 65.26 | 56.00 | 44.87 | 34.84 | 22.67 | 8.13 | 35.45 | |||||||||||||
2013 | 3.58 | 2.14 | 7.35 | 22.60 | 44.13 | 56.57 | 61.13 | 58.94 | 53.10 | 36.74 | 20.10 | -2.52 | 30.32 | |||||||||||||
2014 | -4.84 | -3.68 | 14.13 | 27.90 | 44.55 | 57.27 | 59.00 | 59.84 | 49.40 | 37.39 | 13.93 | 13.81 | 30.72 | |||||||||||||
2015 | 8.97 | -3.36 | 21.77 | 33.37 | 43.26 | 57.17 | 60.65 | 57.19 | 53.10 | 39.16 | 27.37 | 17.65 | 34.69 | |||||||||||||
2016 | 7.00 | 15.48 | 26.35 | 32.53 | 46.71 | 57.07 | 60.26 | 58.77 | 51.30 | 37.90 | 31.90 | 8.48 | 36.15 | |||||||||||||
2017 | 8.13 | 16.00 | 17.19 | 32.60 | 44.26 | 55.37 | 59.42 | 55.61 | 50.33 | 36.61 | 19.77 | 9.19 | 33.71 | |||||||||||||
2018 | 3.32 | -2.14 | 19.84 | 23.43 | 49.81 | 60.47 | 61.29 | 57.19 | 48.47 | 31.10 | 16.33 | 15.00 | 32.01 | |||||||||||||
2019 | -0.71 | -9.25 | 11.55 | 33.67 | 41.94 | 56.43 | 61.94 | 57.61 | 52.30 | 33.84 | 20.47 | 9.97 | 30.81 | |||||||||||||
2020 | 5.77 | 7.93 | 20.77 | 29.20 | 43.55 | 58.90 | 63.32 | 60.19 | 47.27 | 29.71 | 23.80 | 14.35 | 33.73 | |||||||||||||
2021 | 13.52 | -0.64 | 24.10 | 29.93 | 43.13 | 57.70 | 62.55 | 59.29 | 51.47 | 41.65 | 25.70 | 10.52 | 34.91 | |||||||||||||
2022 | -6.23 | -3.39 | 17.48 | 28.20 | 46.55 | 58.63 | 62.19 | 58.90 | 49.93 | 35.90 | 20.63 | 10.53 | p | 33.53 | a | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.69 | 3.32 | 18.07 | 31.53 | 44.66 | 56.88 | 61.47 | 58.25 | 49.73 | 36.38 | 23.12 | 9.49 | 33.24 | |||||||||||||
S.D. | 6.69 | 7.15 | 5.82 | 4.02 | 2.78 | 2.01 | 2.14 | 2.14 | 2.44 | 3.19 | 4.56 | 6.47 | 1.83 | |||||||||||||
SKEW | 0.26 | 0.42 | -0.01 | -0.38 | 0.07 | -0.56 | -0.03 | -1.07 | -0.18 | -0.44 | 0.29 | -0.85 | -0.25 | |||||||||||||
MAX | 18.48 | 16.00 | 29.16 | 38.83 | 49.81 | 60.47 | 65.55 | 61.61 | 53.43 | 41.65 | 32.31 | 17.65 | 36.15 | |||||||||||||
MIN | -6.45 | -9.25 | 7.35 | 22.60 | 38.94 | 51.57 | 57.00 | 51.90 | 44.87 | 29.71 | 13.93 | -4.52 | 30.32 | |||||||||||||
YRS | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 23 | 22 | 20 |