YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.73 | e | 31.47 | 24.39 | 31.19 | i | ||
1983 | 22.58 | g | 26.81 | a | 34.13 | 34.77 | 41.00 | t | 54.30 | c | 61.77 | a | 64.19 | 56.17 | 46.15 | r | 30.30 | 24.58 | 43.00 | c | ||||||
1984 | 20.58 | 23.07 | 30.32 | 37.75 | j | 54.22 | h | 56.11 | c | 62.15 | k | 57.52 | b | 54.56 | c | 31.43 | x | 30.25 | n | 21.70 | d | 37.69 | e | |||
1985 | 23.87 | 25.04 | 34.03 | b | 36.40 | 44.45 | 50.93 | 57.23 | 55.67 | a | ----- | z | 39.32 | ----- | z | 17.42 | 38.44 | b | ||||||||
1986 | 20.16 | 25.39 | 30.71 | 37.41 | a | 41.26 | 53.57 | 56.81 | 57.87 | 47.00 | 36.23 | 28.47 | 23.26 | 38.18 | ||||||||||||
1987 | 16.26 | 26.00 | 26.81 | 33.93 | 45.06 | 49.80 | 53.48 | 55.97 | 45.23 | 37.74 | 27.40 | 19.69 | b | 36.45 | ||||||||||||
1988 | 18.13 | 24.28 | 24.97 | a | 35.03 | a | 42.03 | 54.07 | 58.94 | 59.77 | 46.20 | 38.58 | 26.27 | 16.32 | 37.05 | |||||||||||
1989 | 17.39 | 23.26 | a | 29.58 | 36.53 | 43.26 | 50.90 | 58.61 | 56.10 | 46.73 | 35.20 | a | 22.53 | 15.19 | 36.27 | |||||||||||
1990 | 15.10 | 22.11 | a | 31.19 | 39.00 | 41.71 | 52.27 | 59.45 | 55.35 | 53.17 | 34.52 | 27.67 | 16.35 | 37.32 | ||||||||||||
1991 | 20.61 | 24.32 | 28.52 | 33.33 | 40.00 | 50.27 | 59.26 | 58.48 | 50.00 | 34.52 | 27.07 | b | 24.26 | 37.55 | ||||||||||||
1992 | 20.32 | 26.69 | 30.55 | 36.23 | 46.03 | 47.93 | 55.19 | 55.74 | 46.10 | 36.58 | 23.50 | 20.26 | 37.09 | |||||||||||||
1993 | 26.93 | a | 27.04 | a | 27.80 | a | ----- | z | 43.17 | a | 49.73 | 57.06 | 58.13 | 44.97 | 33.55 | 23.20 | 16.10 | 37.06 | a | |||||||
1994 | 17.45 | 21.54 | 30.48 | 37.17 | 45.39 | 52.93 | 57.74 | 59.42 | 47.97 | 35.32 | 26.28 | a | 22.81 | 37.87 | ||||||||||||
1995 | 23.87 | 26.68 | 30.61 | 33.20 | 42.52 | 49.03 | 54.32 | 60.81 | 50.67 | 32.68 | 27.34 | a | 20.00 | 37.64 | ||||||||||||
1996 | 18.10 | 26.30 | b | 26.17 | a | 35.83 | 41.42 | 53.70 | 61.10 | 58.16 | 46.97 | a | 37.58 | 27.67 | 21.13 | 37.84 | ||||||||||
1997 | 19.35 | 25.25 | 28.87 | 35.50 | 45.45 | 50.50 | 57.77 | 58.87 | 54.20 | 35.93 | a | 25.83 | 20.03 | 38.13 | ||||||||||||
1998 | 20.61 | 23.96 | a | 29.23 | 31.97 | 38.81 | 46.70 | 61.21 | g | 59.73 | a | 52.37 | 38.97 | a | 28.66 | a | 20.17 | b | 35.56 | a | ||||||
1999 | 22.42 | 21.46 | 29.63 | d | 35.53 | 44.03 | 49.73 | 60.61 | 58.68 | 49.57 | 34.43 | a | 27.30 | 18.32 | 37.64 | |||||||||||
2000 | 20.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.22 | l | 40.83 | a | ----- | z | 19.42 | s | 30.53 | j | |
2001 | 21.16 | 25.78 | a | 30.52 | 35.37 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.21 | h | |||
2002 | ----- | z | 18.75 | x | 22.90 | j | 36.79 | f | 40.88 | g | 51.74 | c | 58.26 | d | 53.83 | g | 49.10 | j | 35.52 | j | 25.24 | i | 18.75 | g | 55.00 | j |
2003 | 20.52 | h | 23.24 | k | 28.12 | f | 33.58 | f | 41.87 | h | 50.50 | d | 58.13 | h | 57.04 | g | 45.95 | j | 37.84 | f | 26.46 | f | 17.97 | a | 34.23 | j |
2004 | 20.40 | k | 20.42 | j | 33.08 | f | 36.32 | h | 40.39 | h | 48.76 | e | 55.87 | a | 53.88 | g | 44.39 | g | 37.50 | i | 30.05 | j | 20.09 | i | 52.31 | j |
2005 | 25.30 | k | 29.29 | k | 29.24 | f | 33.30 | j | 43.76 | f | 48.12 | d | 55.23 | i | 57.04 | d | 49.96 | f | 39.35 | h | 24.61 | g | 16.32 | l | 52.58 | j |
2006 | 18.00 | j | 18.50 | j | 27.95 | l | 36.90 | i | 42.64 | f | 52.00 | j | 60.29 | g | 59.61 | c | 44.73 | d | 35.65 | k | 24.92 | e | 16.06 | n | 43.09 | i |
2007 | 17.11 | l | 23.05 | i | 27.81 | j | 34.95 | i | 43.20 | f | 50.13 | g | 58.65 | e | 57.80 | k | 49.61 | l | 33.16 | l | 25.50 | j | 23.05 | k | 58.65 | k |
2008 | 16.33 | j | 22.83 | k | 25.11 | m | 30.39 | l | 41.57 | j | 48.42 | d | 59.16 | 57.48 | 48.50 | ----- | z | 27.93 | c | 22.83 | h | 48.30 | g | |||
2009 | 22.00 | 21.74 | a | 31.58 | e | 35.77 | 47.61 | h | 52.23 | 59.68 | 54.96 | f | 48.90 | 35.13 | 29.27 | o | 17.03 | b | 36.01 | c | ||||||
2010 | 21.68 | 24.47 | i | 28.26 | 35.58 | d | 39.67 | j | 52.37 | 59.97 | 59.61 | m | 50.56 | c | 41.42 | 22.63 | c | 23.97 | a | 37.38 | c | |||||
2011 | 17.45 | 15.81 | a | 28.70 | a | 35.57 | 39.90 | 49.50 | 60.39 | 60.87 | 47.97 | 36.84 | 25.07 | 19.23 | 36.44 | |||||||||||
2012 | 18.94 | 21.96 | c | 27.45 | 37.37 | 44.17 | a | 53.13 | 60.74 | 57.32 | 48.57 | 33.81 | 23.77 | 17.57 | a | 37.07 | ||||||||||
2013 | 10.64 | c | 17.40 | h | 29.42 | 35.03 | 42.42 | e | 52.57 | 61.10 | 58.71 | 51.30 | 32.81 | 26.83 | 18.03 | 38.08 | a | |||||||||
2014 | 17.13 | 25.89 | 28.23 | 35.50 | 42.58 | 51.67 | 62.75 | s | 56.06 | 52.83 | a | 38.81 | 23.63 | 23.77 | 36.01 | a | ||||||||||
2015 | 21.81 | 24.88 | t | ----- | z | 36.80 | 44.26 | 58.27 | 61.61 | 58.74 | 52.77 | 45.04 | f | 27.80 | 23.74 | d | 42.87 | c | ||||||||
2016 | 21.10 | 23.93 | 29.87 | a | 38.03 | 44.00 | 57.60 | 60.35 | 57.55 | 51.90 | 40.06 | 30.57 | 22.36 | q | 41.36 | a | ||||||||||
2017 | 25.87 | 29.39 | 33.29 | c | 41.73 | 46.90 | 54.37 | 62.45 | 60.16 | 51.97 | 38.06 | 31.77 | 18.87 | 41.24 | ||||||||||||
2018 | 18.58 | 26.25 | 30.81 | 40.20 | 46.65 | 55.41 | a | 61.81 | 59.63 | a | 51.31 | a | 42.67 | a | 24.87 | 20.61 | 39.90 | |||||||||
2019 | 21.93 | a | 22.68 | 34.45 | 37.86 | b | 41.84 | 52.70 | 60.90 | b | 59.68 | 53.17 | 34.97 | 27.77 | 23.52 | 39.29 | ||||||||||
2020 | 23.37 | a | 24.29 | a | 34.32 | 38.93 | 46.35 | 54.57 | 61.90 | 60.10 | 48.37 | 41.71 | c | 29.40 | 19.42 | e | 40.23 | |||||||||
2021 | 27.71 | x | 19.12 | t | 29.13 | 37.20 | 45.91 | i | 62.28 | e | 63.68 | 60.09 | i | 53.33 | 37.94 | 27.54 | b | 22.97 | 41.76 | d | ||||||
2022 | 17.38 | r | 16.46 | b | 29.60 | a | 36.23 | 45.68 | 57.60 | 63.71 | 62.48 | 53.72 | a | 40.90 | 22.30 | 23.30 | a | 41.09 | a | |||||||
2023 | 22.61 | 20.68 | 29.97 | b | 34.97 | 46.48 | 50.80 | 63.52 | 62.10 | 50.60 | 38.16 | 25.97 | 21.87 | 38.98 | ||||||||||||
2024 | 20.93 | b | 26.68 | a | 31.52 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.38 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.21 | 24.02 | 30.02 | 36.26 | 43.55 | 52.30 | 59.49 | 58.69 | 50.07 | 37.19 | 26.68 | 20.42 | 38.01 | |||||||||||||
S.D. | 3.20 | 2.98 | 2.28 | 2.02 | 2.23 | 3.28 | 2.59 | 2.09 | 3.09 | 2.74 | 2.56 | 2.82 | 1.36 | |||||||||||||
SKEW | -0.53 | -1.04 | 0.21 | 0.50 | -0.29 | 0.84 | -0.43 | 0.48 | -0.05 | 0.20 | 0.05 | -0.10 | 0.88 | |||||||||||||
MAX | 26.93 | 29.39 | 34.45 | 41.73 | 46.90 | 62.28 | 63.71 | 64.19 | 56.17 | 42.67 | 31.77 | 24.58 | 41.24 | |||||||||||||
MIN | 10.64 | 15.81 | 24.97 | 31.97 | 38.81 | 46.70 | 53.48 | 55.35 | 44.73 | 32.68 | 22.30 | 15.19 | 36.27 | |||||||||||||
YRS | 32 | 30 | 33 | 31 | 27 | 37 | 33 | 32 | 33 | 31 | 32 | 33 | 19 |