YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.55 | a | 33.03 | 25.79 | b | 17.55 | b | 30.48 | h | |
1985 | 11.87 | 13.43 | 24.61 | 35.04 | c | 44.28 | b | 51.87 | 56.83 | b | 54.21 | b | 44.03 | 33.57 | c | 16.90 | 12.55 | 33.26 | ||||||||
1986 | 25.08 | f | 19.78 | a | 30.62 | b | 34.00 | b | 39.33 | a | 53.83 | a | 54.39 | c | 53.13 | a | 44.21 | a | ----- | z | 24.86 | b | 16.14 | b | 37.03 | b |
1987 | 15.58 | e | 21.65 | b | 23.63 | a | 30.46 | b | 43.28 | b | 50.78 | c | 54.45 | b | 53.26 | 42.62 | a | 34.31 | b | 25.17 | 13.85 | d | 34.09 | |||
1988 | ----- | z | ----- | z | 24.12 | f | 30.92 | d | 42.82 | c | 53.07 | 56.14 | b | 55.50 | e | 44.21 | a | 36.33 | a | 26.21 | a | 17.90 | 40.34 | c | ||
1989 | 19.23 | ----- | z | ----- | z | ----- | z | 44.68 | 51.13 | 58.68 | 55.81 | 47.50 | 36.35 | 28.07 | 15.57 | a | 39.67 | c | ||||||||
1990 | 24.35 | 21.14 | 27.26 | 35.23 | 41.13 | a | 53.93 | 56.32 | 55.53 | a | 53.13 | 36.82 | c | 28.80 | 11.90 | 37.13 | ||||||||||
1991 | 15.33 | a | 25.89 | a | 28.52 | 34.10 | 45.16 | 52.40 | 56.61 | 55.03 | 46.10 | 35.23 | 23.13 | 21.35 | 36.57 | |||||||||||
1992 | 20.94 | 27.00 | 30.55 | 39.20 | 44.57 | a | 50.90 | 54.71 | 53.32 | 48.87 | 37.84 | 22.83 | 14.16 | 37.07 | ||||||||||||
1993 | 14.48 | 17.39 | 29.42 | 34.33 | 43.61 | 50.73 | 55.32 | 54.90 | a | 44.80 | 34.81 | 20.18 | b | 21.53 | a | 35.13 | ||||||||||
1994 | 20.32 | 17.18 | 29.45 | 33.97 | 47.87 | 55.57 | 55.13 | 57.10 | 49.52 | a | 38.48 | 24.73 | 21.68 | 37.58 | ||||||||||||
1995 | 20.39 | 23.50 | 27.77 | 31.70 | 37.20 | a | 46.66 | a | 52.85 | e | 56.85 | d | 45.17 | a | 32.61 | 27.10 | a | 18.47 | a | 35.02 | ||||||
1996 | 9.87 | a | 18.34 | 20.55 | 33.23 | 42.39 | 49.73 | 54.90 | 52.03 | a | 45.45 | a | 37.74 | 25.73 | 22.03 | a | 34.33 | |||||||||
1997 | 16.94 | 20.46 | 28.38 | g | 30.10 | a | 43.67 | a | 53.83 | 57.97 | b | 57.45 | b | 50.59 | c | 37.45 | b | 24.90 | 19.33 | d | 37.52 | a | ||||
1998 | 22.03 | 23.43 | 25.00 | a | 33.57 | 45.29 | 48.86 | a | 59.83 | a | 57.23 | 51.62 | a | 38.26 | 32.59 | a | 17.53 | a | 37.94 | |||||||
1999 | 22.63 | d | 25.00 | a | 28.00 | k | ----- | z | 43.11 | d | 51.07 | b | 60.00 | b | 57.53 | a | 45.13 | 35.87 | 31.97 | 24.00 | a | 39.63 | b | |||
2000 | 21.94 | 25.69 | 28.63 | a | 36.04 | b | 45.61 | 52.33 | 59.19 | 59.32 | 47.57 | 37.13 | 19.83 | 16.87 | 37.51 | |||||||||||
2001 | 19.26 | 18.43 | 28.52 | 36.34 | a | 44.29 | 53.07 | a | 60.55 | 57.42 | 48.79 | a | 34.90 | 27.90 | 19.03 | 37.38 | ||||||||||
2002 | 18.58 | 19.29 | 20.23 | 36.30 | 40.29 | 55.23 | 60.57 | a | 55.45 | 48.67 | 31.68 | 27.80 | 22.03 | 36.34 | ||||||||||||
2003 | 24.57 | a | 19.54 | 30.39 | 36.77 | 43.84 | 49.60 | 60.63 | a | 58.80 | a | 44.93 | 39.84 | 26.03 | 20.40 | a | 37.94 | |||||||||
2004 | 19.23 | a | 20.34 | 31.61 | 35.24 | a | 45.94 | 50.59 | a | 55.67 | a | 53.52 | 48.65 | d | 37.77 | 27.62 | a | 23.06 | 37.44 | |||||||
2005 | 21.80 | a | 24.67 | a | 28.10 | 34.40 | 44.19 | 51.46 | b | 59.81 | 55.45 | 50.10 | a | 36.83 | b | 29.30 | 19.13 | 37.94 | ||||||||
2006 | 24.57 | a | 18.93 | 26.10 | 36.63 | 46.00 | 55.43 | 60.37 | a | 58.10 | 44.13 | 36.26 | 28.27 | 21.35 | 38.01 | |||||||||||
2007 | 12.06 | 18.21 | 32.45 | 33.77 | 44.52 | 53.03 | 60.45 | 59.65 | 49.24 | a | 38.32 | 27.93 | 16.68 | 37.19 | ||||||||||||
2008 | 16.58 | 21.14 | 26.03 | a | 33.37 | 44.00 | 53.13 | 59.42 | 56.68 | 47.37 | 37.68 | 29.70 | 13.74 | 36.57 | ||||||||||||
2009 | 20.77 | 24.96 | 28.65 | 34.57 | 47.45 | 51.87 | 56.90 | a | 55.84 | 49.00 | 32.10 | b | 28.38 | a | 12.00 | 36.87 | ||||||||||
2010 | 17.94 | 16.00 | 27.76 | b | 34.90 | 41.39 | 54.93 | 58.42 | 59.23 | 49.03 | 40.16 | 26.33 | 22.48 | 37.38 | ||||||||||||
2011 | 18.19 | 14.39 | 28.90 | 35.87 | 41.39 | 52.97 | 61.29 | 59.83 | a | 48.87 | 37.74 | 28.97 | 17.39 | 37.15 | ||||||||||||
2012 | 24.27 | a | 19.17 | 33.87 | 39.87 | 45.90 | a | 57.63 | 61.52 | 57.69 | b | ----- | z | 35.68 | 29.53 | 19.77 | 38.63 | a | ||||||||
2013 | 16.10 | 18.36 | 24.10 | 29.23 | 44.19 | 54.23 | 58.81 | 57.55 | 51.97 | 34.45 | 27.79 | a | 16.39 | 36.10 | ||||||||||||
2014 | 18.87 | 15.68 | 26.37 | a | 35.80 | 45.16 | 52.23 | 58.52 | 55.68 | 49.77 | 38.97 | 24.60 | 19.19 | 36.74 | ||||||||||||
2015 | 21.03 | 22.29 | 30.55 | 36.47 | 42.19 | 55.50 | 57.45 | 56.16 | 51.73 | h | 43.94 | 26.90 | 19.53 | a | 37.46 | a | ||||||||||
2016 | 19.35 | 26.55 | 30.21 | c | 35.86 | a | 42.61 | 58.33 | c | 59.40 | a | 55.55 | 49.30 | 41.74 | 32.03 | 15.06 | 38.83 | |||||||||
2017 | 17.67 | a | 27.44 | a | 33.06 | 36.07 | 43.39 | 54.47 | 60.17 | b | 56.06 | 50.41 | a | 36.39 | 31.07 | 20.90 | a | 38.93 | ||||||||
2018 | 20.71 | 16.54 | 28.29 | 33.70 | 48.73 | a | 56.62 | a | 60.39 | 56.53 | a | 51.48 | a | 36.13 | a | 24.90 | a | 19.00 | 37.75 | |||||||
2019 | 19.84 | 16.18 | 25.83 | a | 37.21 | a | 40.00 | a | 52.53 | 59.87 | 59.71 | 52.41 | a | 30.87 | 24.13 | 22.45 | 36.75 | |||||||||
2020 | 21.71 | 17.28 | 30.80 | a | 32.97 | 47.39 | 56.86 | a | 59.03 | 58.68 | 48.78 | c | 32.75 | c | 28.76 | a | 23.06 | 38.17 | ||||||||
2021 | 20.03 | 13.36 | 26.58 | 31.33 | 40.12 | w | 55.82 | b | 60.58 | 57.90 | 49.93 | 37.27 | a | 29.63 | 23.31 | b | 36.89 | a | ||||||||
2022 | 17.52 | 13.75 | 25.42 | 31.57 | 42.58 | 54.96 | b | 60.71 | 59.97 | 50.60 | 38.45 | 22.10 | 15.71 | 36.11 | ||||||||||||
2023 | 16.77 | 15.86 | 22.13 | 32.73 | 44.52 | 52.07 | 57.55 | 56.77 | 47.50 | 35.03 | a | 26.17 | 23.71 | 35.90 | ||||||||||||
2024 | 14.03 | 24.34 | 26.19 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.52 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.88 | 20.07 | 27.73 | 34.40 | 43.79 | 53.06 | 58.24 | 56.57 | 48.08 | 36.43 | 26.62 | 18.70 | 36.81 | |||||||||||||
S.D. | 3.55 | 4.07 | 3.24 | 2.38 | 2.39 | 2.50 | 2.32 | 2.03 | 2.70 | 2.72 | 3.34 | 3.43 | 1.33 | |||||||||||||
SKEW | -0.51 | 0.18 | -0.40 | -0.09 | -0.40 | -0.09 | -0.55 | -0.19 | -0.19 | 0.22 | -0.68 | -0.32 | -0.90 | |||||||||||||
MAX | 24.57 | 27.44 | 33.87 | 39.87 | 48.73 | 58.33 | 61.52 | 59.97 | 53.13 | 43.94 | 32.59 | 24.00 | 38.93 | |||||||||||||
MIN | 9.87 | 13.36 | 20.23 | 29.23 | 37.20 | 46.66 | 52.85 | 52.03 | 42.62 | 30.87 | 16.90 | 11.90 | 33.26 | |||||||||||||
YRS | 38 | 38 | 36 | 37 | 38 | 39 | 39 | 39 | 38 | 39 | 40 | 40 | 31 |