YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | 29.33 | 49.00 | 47.20 | 58.77 | 54.42 | 48.00 | 39.13 | 21.77 | 14.93 | a | 40.28 | c | ||||||||
1983 | 8.30 | a | 18.50 | 25.84 | 29.50 | 39.90 | 53.45 | a | 62.58 | 61.81 | 51.17 | 38.81 | 28.23 | -4.10 | a | 34.50 | ||||||||||
1984 | 0.42 | 18.97 | 15.32 | 34.53 | 41.42 | 56.73 | 57.32 | 60.45 | 44.77 | 42.32 | 24.27 | 8.35 | 33.74 | |||||||||||||
1985 | -0.29 | 5.07 | 24.35 | 37.43 | 48.10 | 49.27 | 55.42 | 54.10 | 48.00 | 35.48 | 16.77 | -5.53 | a | 30.68 | ||||||||||||
1986 | 4.45 | 3.43 | 22.23 | 37.70 | 46.65 | ----- | z | 62.13 | 54.03 | 49.50 | 37.87 | 20.33 | 13.73 | a | 32.00 | a | ||||||||||
1987 | 9.94 | 18.68 | 27.03 | 37.53 | 49.13 | 56.70 | 63.19 | 57.94 | 50.00 | 32.71 | ----- | z | 17.55 | 38.22 | a | |||||||||||
1988 | -1.39 | 0.03 | 21.58 | 32.37 | 49.16 | 57.40 | 61.32 | 61.26 | 50.10 | 32.29 | 26.27 | 7.81 | 33.18 | |||||||||||||
1989 | 7.37 | a | -2.79 | 15.00 | 31.62 | a | 44.52 | 52.73 | 60.97 | 57.97 | 47.93 | 37.06 | 19.33 | -1.03 | 30.89 | |||||||||||
1990 | 14.68 | 7.00 | 23.58 | 34.70 | 42.65 | 56.10 | 58.81 | 57.90 | 51.20 | 36.06 | 26.90 | 7.58 | 34.76 | |||||||||||||
1991 | 0.68 | 9.18 | 21.77 | 36.23 | 50.71 | 59.00 | 59.19 | 58.94 | 48.63 | 34.74 | 16.50 | 10.81 | 33.87 | |||||||||||||
1992 | 11.13 | 18.90 | 22.55 | 31.87 | 45.61 | 51.33 | 53.61 | 52.68 | 44.52 | a | 34.00 | a | 24.90 | 9.97 | 33.42 | |||||||||||
1993 | -0.03 | 4.61 | 15.55 | 30.30 | 45.71 | 51.00 | 58.39 | 57.03 | 41.50 | 31.63 | a | 21.47 | 11.45 | 30.72 | ||||||||||||
1994 | -11.35 | -0.73 | b | 21.94 | 31.93 | a | 44.94 | 55.13 | 56.94 | 54.94 | 51.93 | 40.26 | 26.86 | a | 14.32 | 32.26 | ||||||||||
1995 | 6.06 | 3.11 | a | 22.17 | a | 29.20 | 43.65 | 58.73 | 60.52 | b | ----- | z | ----- | z | 37.29 | 15.97 | a | 3.68 | 28.04 | b | ||||||
1996 | -7.68 | 0.97 | 8.07 | b | 26.57 | b | 41.54 | c | 54.79 | b | 55.66 | b | 55.47 | a | 48.62 | a | 34.83 | a | 16.17 | 1.37 | d | 28.03 | ||||
1997 | -3.00 | a | 7.15 | a | 17.84 | 29.07 | a | 39.52 | 55.59 | a | 58.39 | 54.71 | 48.68 | b | 36.23 | a | 19.90 | a | 18.07 | a | 31.84 | |||||
1998 | 8.40 | a | 21.68 | c | 22.46 | c | 35.62 | a | 49.07 | a | 52.21 | a | 58.62 | b | 57.65 | 50.07 | 38.37 | a | 27.00 | 11.26 | 36.03 | |||||
1999 | -4.00 | a | 14.96 | 20.16 | 35.52 | a | 48.26 | 55.17 | 62.00 | a | 55.79 | b | 45.33 | 32.73 | a | 27.67 | 13.27 | a | 33.91 | |||||||
2000 | -0.90 | 10.31 | 27.06 | 31.17 | 47.61 | 51.97 | 58.53 | a | 56.94 | 44.57 | 38.19 | 24.28 | a | -4.10 | 32.14 | |||||||||||
2001 | 3.77 | -4.32 | 13.71 | ----- | z | 46.52 | 55.13 | 57.94 | 57.47 | a | 45.80 | 33.61 | 32.97 | 17.27 | a | 32.71 | a | |||||||||
2002 | 12.28 | b | 13.74 | a | 12.00 | 31.83 | 38.90 | 57.37 | 63.19 | 56.87 | 50.50 | 32.29 | 21.60 | 14.26 | 33.74 | |||||||||||
2003 | 1.87 | -0.38 | b | 15.67 | a | 32.46 | b | 43.71 | 53.47 | 57.45 | 57.97 | a | 47.59 | c | 34.87 | a | 21.34 | a | 13.13 | a | 31.60 | |||||
2004 | -1.86 | c | 5.39 | a | 20.81 | 32.03 | 41.39 | c | 50.46 | b | 55.97 | b | 50.47 | a | 52.38 | a | 36.79 | b | 26.17 | 10.38 | b | 31.70 | ||||
2005 | 2.71 | 11.64 | 15.33 | a | 34.90 | a | 42.61 | ----- | z | 59.52 | 55.37 | a | 49.00 | 38.18 | c | 22.93 | 10.83 | a | 31.18 | a | ||||||
2006 | 17.53 | a | 5.44 | a | 20.57 | a | 36.50 | b | 47.57 | a | 54.90 | 60.84 | 57.42 | 44.57 | 30.65 | 26.07 | 19.03 | a | 35.09 | |||||||
2007 | 8.10 | -0.61 | 22.48 | 30.93 | a | 47.45 | 56.77 | 59.29 | 57.13 | 47.67 | 41.52 | 23.00 | 3.03 | a | 33.06 | |||||||||||
2008 | 0.48 | -1.07 | 8.97 | 29.97 | 40.42 | 53.80 | 56.84 | 54.35 | 48.40 | 34.84 | 23.52 | a | -2.48 | 29.00 | ||||||||||||
2009 | -12.55 | 5.11 | 16.93 | a | 31.26 | c | 42.42 | 51.87 | 53.00 | 54.42 | 49.90 | 33.48 | 29.17 | 7.03 | 30.17 | |||||||||||
2010 | 0.81 | 1.71 | 23.90 | 37.60 | 46.00 | 54.80 | 61.45 | 60.97 | 44.63 | 35.84 | 23.37 | 4.71 | 32.98 | |||||||||||||
2011 | -1.48 | 3.07 | 13.32 | 31.10 | 43.68 | 53.53 | 62.77 | 57.39 | 46.83 | 37.90 | 26.20 | 14.13 | 32.37 | |||||||||||||
2012 | 7.58 | 14.90 | 33.00 | 33.93 | 48.06 | 55.47 | 62.77 | a | 54.55 | 42.97 | 32.06 | 23.40 | 12.74 | 35.12 | ||||||||||||
2013 | 2.90 | 3.39 | 10.06 | 27.30 | 43.90 | 54.90 | 58.48 | 56.03 | 48.13 | 36.42 | 18.40 | -2.48 | 29.79 | |||||||||||||
2014 | -10.26 | -9.61 | 7.52 | 27.23 | 45.32 | 57.07 | 57.74 | 58.16 | 46.77 | 34.19 | 11.97 | 16.45 | 28.55 | |||||||||||||
2015 | 3.35 | -6.21 | 18.26 | 32.90 | 44.87 | 54.83 | 59.03 | 55.77 | 53.90 | 36.35 | 29.13 | 23.84 | 33.84 | |||||||||||||
2016 | 3.74 | 9.07 | 27.61 | 33.73 | 45.06 | 56.37 | 59.97 | 59.61 | 52.57 | 38.13 | 30.23 | 10.13 | 35.52 | |||||||||||||
2017 | 8.29 | 15.32 | 18.84 | 34.57 | 43.76 | f | 54.27 | 58.84 | 53.74 | 50.73 | 37.94 | 19.97 | 6.03 | 32.59 | a | |||||||||||
2018 | -1.13 | -2.54 | b | 16.48 | 20.75 | b | 50.10 | 58.73 | 58.52 | 58.00 | 51.20 | 33.52 | 19.37 | 16.16 | 31.60 | |||||||||||
2019 | 4.13 | -2.89 | 10.39 | 32.17 | 41.74 | 52.10 | a | 61.06 | 55.32 | 51.03 | 35.10 | 18.77 | 7.83 | a | 30.56 | |||||||||||
2020 | 10.45 | 2.04 | b | 23.57 | a | 29.67 | 44.81 | 54.30 | 61.45 | 55.97 | 43.73 | 30.71 | 25.00 | 12.33 | a | 32.84 | ||||||||||
2021 | 10.00 | b | -0.89 | 24.03 | 32.33 | 43.74 | 58.10 | 57.03 | 55.68 | 46.69 | a | 42.81 | 23.07 | a | 10.86 | c | 33.62 | |||||||||
2022 | -6.39 | -3.14 | f | 17.15 | d | 30.59 | m | 45.06 | 53.90 | 59.67 | a | 57.52 | 46.07 | a | 34.85 | d | 23.58 | d | 6.39 | 33.78 | b | |||||
2023 | 13.54 | c | 4.89 | 14.27 | e | 32.04 | e | 45.61 | 57.56 | e | 54.94 | 54.65 | 53.47 | 40.29 | 23.59 | h | 23.12 | g | 37.12 | b | ||||||
2024 | 13.96 | d | 20.08 | d | 23.36 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.02 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.21 | 6.01 | 19.01 | 32.19 | 45.03 | 54.60 | 59.05 | 56.56 | 48.27 | 36.01 | 23.09 | 9.29 | 32.46 | |||||||||||||
S.D. | 7.15 | 8.00 | 5.86 | 3.47 | 3.04 | 2.66 | 2.54 | 2.36 | 2.98 | 3.04 | 4.45 | 7.00 | 2.04 | |||||||||||||
SKEW | -0.21 | 0.35 | -0.08 | -0.70 | -0.11 | -0.55 | -0.30 | 0.11 | -0.19 | 0.28 | -0.21 | -0.46 | -0.35 | |||||||||||||
MAX | 17.53 | 21.68 | 33.00 | 37.70 | 50.71 | 59.00 | 63.19 | 61.81 | 53.90 | 42.81 | 32.97 | 23.84 | 36.03 | |||||||||||||
MIN | -12.55 | -9.61 | 7.52 | 20.75 | 38.90 | 47.20 | 53.00 | 50.47 | 41.50 | 30.65 | 11.97 | -5.53 | 28.03 | |||||||||||||
YRS | 42 | 41 | 41 | 40 | 41 | 40 | 42 | 41 | 41 | 42 | 40 | 41 | 33 |