YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.64 | b | 38.97 | a | 29.34 | a | 22.39 | 35.34 | h | |
1990 | 21.07 | d | 25.87 | e | 34.29 | 40.43 | g | 42.61 | 51.53 | 59.03 | b | 53.40 | a | 50.70 | c | 40.17 | b | 30.07 | b | 13.25 | c | 38.36 | a | |||
1991 | 22.67 | d | 28.46 | d | 29.54 | e | 35.72 | a | 42.87 | a | 51.43 | 61.00 | 58.77 | a | 57.18 | m | 43.86 | b | 32.15 | c | 26.37 | d | 39.35 | a | ||
1992 | 23.43 | h | 33.52 | d | 36.64 | c | 42.24 | a | 48.97 | a | 53.72 | a | 60.10 | 61.93 | b | 51.89 | c | 44.48 | d | 29.18 | b | 20.71 | g | 46.27 | b | |
1993 | 27.96 | h | 30.48 | e | 35.73 | a | 38.73 | 45.74 | 53.34 | a | 56.23 | a | 56.97 | 49.19 | c | 40.86 | b | 27.38 | d | 23.19 | d | 41.62 | a | |||
1994 | 23.23 | e | 25.86 | f | 35.68 | c | 40.85 | c | 47.53 | a | 57.10 | 61.03 | 61.47 | a | 51.04 | b | 38.46 | g | 24.36 | e | 25.48 | f | 44.70 | c | ||
1995 | 30.42 | g | 32.91 | e | 33.67 | d | 35.58 | d | 43.94 | 50.83 | a | 58.26 | 60.21 | b | 52.00 | c | 38.84 | f | 32.64 | b | 24.28 | b | 42.43 | b | ||
1996 | 20.21 | g | 30.54 | e | 31.63 | d | 38.74 | c | 49.10 | a | 54.43 | 64.39 | c | 61.62 | b | 51.27 | h | 40.00 | e | 32.27 | d | 27.26 | 43.00 | b | ||
1997 | 23.70 | a | 28.50 | d | 31.29 | c | 35.88 | e | 50.60 | a | 55.31 | a | 58.33 | a | 59.35 | e | 56.69 | d | 38.77 | a | 32.25 | b | 24.94 | 41.30 | ||
1998 | 25.84 | 29.75 | d | 32.54 | e | 35.14 | a | 41.25 | c | 49.41 | a | 60.48 | 60.50 | k | 54.30 | c | 37.75 | o | 28.96 | e | 23.03 | b | 38.07 | b | ||
1999 | 24.93 | p | 27.12 | d | 29.71 | c | 34.20 | e | 44.50 | e | 53.37 | c | 61.47 | l | 56.60 | f | 52.32 | e | 42.86 | i | 30.18 | h | 21.85 | d | 37.58 | e |
2000 | 28.88 | o | 31.32 | g | 33.00 | b | 40.70 | c | 48.15 | d | 56.07 | c | 55.04 | g | 58.81 | d | 50.15 | c | 42.46 | c | 25.39 | b | 25.22 | d | 42.22 | c |
2001 | 26.07 | b | 28.00 | a | 34.83 | b | 38.56 | c | 48.93 | d | 51.09 | g | 58.50 | e | 59.88 | g | 47.86 | a | 47.00 | d | 37.27 | h | 24.26 | h | 41.22 | d |
2002 | 26.16 | f | 28.38 | d | 31.71 | c | 43.55 | j | 49.09 | i | 59.61 | g | 65.10 | k | 59.36 | q | 57.26 | c | 43.32 | c | 34.74 | g | 27.08 | g | 40.17 | h |
2003 | 32.48 | d | 34.00 | e | 36.84 | f | 40.79 | f | 51.12 | e | 60.96 | g | 66.21 | g | 60.80 | f | 52.97 | 44.34 | b | 29.28 | a | 24.68 | c | 38.41 | e | |
2004 | 24.31 | b | 27.11 | a | 38.65 | 42.20 | 47.45 | 53.80 | 59.00 | a | 55.19 | 49.14 | a | 40.22 | h | 30.72 | a | 26.32 | c | 41.26 | a | |||||
2005 | 32.00 | a | 33.00 | 34.83 | b | 39.00 | 47.29 | 56.60 | 63.35 | 59.42 | 51.55 | a | 44.29 | 34.63 | 25.23 | 43.43 | ||||||||||
2006 | 24.68 | 25.14 | f | 27.90 | 40.10 | 50.94 | 56.63 | 64.52 | 56.52 | 49.50 | 40.32 | 30.00 | 23.06 | 42.20 | a | |||||||||||
2007 | 19.45 | 25.57 | 34.52 | b | 40.97 | 46.84 | 54.10 | 63.52 | 60.19 | 51.93 | 39.23 | 32.40 | 22.68 | 40.95 | ||||||||||||
2008 | 22.65 | 27.38 | 31.94 | 35.77 | 43.94 | 53.10 | 62.94 | 60.52 | 51.87 | 40.19 | 35.47 | 21.45 | 40.60 | |||||||||||||
2009 | 26.23 | 28.68 | 30.23 | 39.75 | j | 52.10 | 51.90 | 61.52 | 56.94 | 52.60 | 37.90 | 31.21 | a | 20.61 | 40.90 | a | ||||||||||
2010 | 26.32 | 30.46 | 31.74 | 35.83 | 41.94 | 54.83 | 62.90 | 56.74 | 49.43 | 44.87 | 28.47 | 30.40 | a | 41.16 | ||||||||||||
2011 | 25.00 | 23.00 | 31.81 | 37.00 | 42.81 | 51.37 | 58.87 | a | 57.61 | 52.90 | 40.90 | 27.00 | 22.43 | a | 39.22 | |||||||||||
2012 | 22.08 | r | 28.55 | i | 32.58 | 40.17 | 48.29 | 53.73 | 59.84 | 63.50 | a | 54.10 | 43.13 | 32.17 | 26.06 | 45.36 | b | |||||||||
2013 | 22.39 | 24.54 | 35.42 | 39.53 | 47.84 | 56.47 | 64.29 | 57.16 | 53.83 | 37.97 | 32.33 | 22.03 | a | 41.15 | ||||||||||||
2014 | 27.06 | 27.75 | 35.03 | 40.27 | 47.94 | 55.93 | 63.71 | 58.94 | 55.30 | 43.74 | 31.57 | 29.23 | 43.04 | |||||||||||||
2015 | 29.35 | 33.46 | 37.63 | a | 38.53 | 47.23 | 57.23 | 60.73 | a | 61.77 | 55.40 | 48.29 | 29.63 | 23.77 | 43.59 | |||||||||||
2016 | 26.97 | 29.93 | 35.61 | 41.10 | 48.00 | 59.27 | 59.74 | 57.97 | 50.97 | 44.06 | 33.67 | 24.55 | 42.65 | |||||||||||||
2017 | 28.10 | 33.14 | 36.71 | 40.28 | a | 47.17 | a | 55.87 | 64.74 | 61.00 | 52.80 | 39.87 | 33.83 | 26.29 | 43.32 | |||||||||||
2018 | 29.23 | 25.96 | 33.23 | 41.03 | 48.58 | 57.50 | 65.03 | 60.61 | 51.57 | 43.42 | 31.20 | 27.42 | 42.90 | |||||||||||||
2019 | 28.16 | 24.57 | 35.58 | 42.83 | 43.74 | 55.40 | 58.90 | 58.26 | 52.37 | 35.48 | 31.60 | 27.35 | 41.19 | |||||||||||||
2020 | 26.00 | 27.25 | a | 33.77 | 40.40 | 48.90 | 53.24 | a | 57.67 | a | 58.00 | 51.93 | a | 42.57 | a | 32.53 | 22.68 | 41.25 | ||||||||
2021 | 26.13 | 25.93 | 30.29 | 39.80 | 47.03 | 58.97 | 65.43 | a | 59.39 | 52.10 | 38.19 | 35.37 | 26.32 | 42.08 | ||||||||||||
2022 | 24.48 | 24.96 | 32.45 | b | 37.66 | a | 45.19 | 56.77 | d | 63.03 | a | 64.26 | 56.10 | 42.94 | 28.47 | 25.74 | 41.84 | |||||||||
2023 | 28.57 | a | 24.67 | a | 29.71 | 37.53 | 47.32 | 52.97 | 61.26 | 60.77 | 52.00 | a | 41.77 | 31.17 | 27.39 | 41.26 | ||||||||||
2024 | 26.68 | 31.10 | 32.97 | 37.50 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.25 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.88 | 28.58 | 33.32 | 38.88 | 46.84 | 54.59 | 61.28 | 59.22 | 52.25 | 41.78 | 30.83 | 24.43 | 41.82 | |||||||||||||
S.D. | 3.05 | 3.10 | 2.54 | 2.36 | 2.78 | 2.42 | 2.55 | 2.43 | 2.22 | 2.90 | 2.64 | 3.13 | 1.19 | |||||||||||||
SKEW | 0.16 | 0.22 | -0.02 | -0.33 | -0.29 | -0.08 | -0.01 | -0.13 | 0.40 | 0.06 | -0.45 | -1.20 | -0.17 | |||||||||||||
MAX | 32.48 | 34.00 | 38.65 | 42.83 | 52.10 | 59.27 | 65.43 | 64.26 | 57.26 | 48.29 | 35.47 | 30.40 | 43.59 | |||||||||||||
MIN | 19.45 | 23.00 | 27.90 | 34.20 | 41.25 | 49.41 | 56.23 | 53.40 | 47.86 | 35.48 | 24.36 | 13.25 | 39.22 | |||||||||||||
YRS | 27 | 31 | 34 | 30 | 33 | 31 | 30 | 29 | 33 | 30 | 32 | 31 | 17 |