YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1990 | ----- | z | ----- | z | 29.50 | a | 41.55 | a | 42.32 | 50.07 | 61.00 | 56.97 | 48.79 | b | 34.07 | d | 27.17 | 14.55 | k | 43.49 | c | |||||
1991 | 12.53 | n | 26.62 | g | 23.80 | k | 33.23 | d | 40.96 | g | 45.71 | f | 54.29 | g | 54.04 | g | 43.83 | l | 33.27 | e | 25.15 | j | 19.43 | j | 33.25 | j |
1992 | 22.04 | f | 27.95 | i | 29.30 | h | 37.28 | e | 44.83 | g | 53.28 | e | 53.00 | e | 50.46 | g | 42.55 | h | 32.38 | g | 26.05 | j | 17.45 | k | 47.85 | i |
1993 | 12.38 | j | 19.65 | h | 30.30 | h | 36.29 | f | 46.61 | h | 46.62 | d | 48.92 | g | 47.32 | i | 39.42 | f | ----- | z | 16.82 | h | 23.05 | i | 46.62 | k |
1994 | 26.14 | j | 20.70 | h | 28.71 | g | ----- | z | 45.00 | e | 48.46 | f | 55.91 | h | 52.96 | f | 43.17 | g | 33.22 | h | 22.48 | i | 17.82 | i | 45.00 | k |
1995 | 25.70 | k | 26.52 | g | 29.68 | i | 33.59 | h | 42.83 | g | 50.36 | p | 55.04 | f | 46.83 | g | 42.78 | g | 30.35 | k | 30.23 | h | 18.69 | o | ----- | z |
1996 | 24.29 | j | 21.65 | i | 30.08 | e | 34.78 | g | 42.64 | f | 47.67 | i | 49.60 | p | 48.33 | j | 38.91 | h | 32.00 | f | 27.30 | j | 23.94 | m | 30.08 | k |
1997 | 19.32 | i | 23.10 | g | 27.46 | g | 32.69 | d | 42.70 | h | 47.50 | h | 50.43 | j | 48.77 | i | 44.67 | i | 30.04 | f | 25.80 | j | 20.62 | j | 32.69 | k |
1998 | 27.00 | l | 27.35 | h | 28.72 | f | 34.92 | e | 44.63 | l | 46.36 | h | 56.68 | i | 49.05 | j | 43.23 | h | 26.54 | e | 23.68 | k | 14.50 | i | 30.73 | j |
1999 | 19.30 | k | 20.68 | i | 21.78 | h | 26.30 | g | 35.92 | g | 43.78 | g | 46.48 | f | 46.45 | i | 31.41 | h | 22.53 | n | 18.92 | r | ----- | z | ----- | z |
2000 | 17.07 | q | 19.67 | h | 27.95 | i | 36.91 | h | 44.91 | h | 48.88 | f | 54.46 | g | 50.24 | f | 38.32 | k | 30.70 | h | 20.25 | j | 20.83 | m | ----- | z |
2001 | 14.95 | l | 16.30 | h | 26.67 | g | 30.71 | i | 39.55 | i | 45.23 | h | 51.73 | i | 49.83 | g | 39.43 | i | 27.11 | d | 28.14 | h | 23.94 | m | 27.11 | k |
2002 | 22.95 | k | 16.33 | j | 25.08 | f | 32.68 | h | 43.38 | g | 51.71 | f | 55.29 | j | 48.17 | m | 39.84 | k | 30.72 | f | 19.25 | j | 24.89 | l | ----- | z |
2003 | 27.65 | k | 22.52 | g | 30.10 | k | 36.32 | e | 40.20 | k | 53.17 | g | 61.23 | i | 54.86 | j | 41.24 | i | 34.76 | f | 19.14 | i | 23.16 | l | 36.32 | k |
2004 | 19.33 | m | 23.65 | i | 28.43 | h | 34.41 | h | 42.10 | k | 48.50 | h | 53.65 | k | 52.21 | l | 40.95 | j | 32.75 | k | 24.21 | k | 19.22 | m | ----- | z |
2005 | 19.06 | m | 14.42 | i | 27.30 | h | 33.70 | g | 44.00 | i | 45.67 | i | 52.84 | l | 49.91 | i | 35.36 | p | 30.10 | j | 21.00 | j | 13.47 | n | ----- | z |
2006 | 22.83 | m | 15.50 | j | 26.65 | h | 31.15 | j | 38.24 | j | 47.71 | i | 52.83 | m | 44.55 | k | 34.08 | q | 27.32 | l | 25.35 | m | 12.00 | r | ----- | z |
2007 | 12.23 | i | 24.00 | i | 26.90 | j | 30.90 | i | 43.90 | k | 51.31 | q | 61.06 | n | 51.59 | i | 41.67 | r | 33.91 | i | 24.18 | m | 23.88 | o | ----- | z |
2008 | 17.41 | n | 22.71 | o | 25.82 | i | 26.83 | g | 42.48 | j | 48.35 | m | 55.33 | m | 53.05 | l | 40.29 | m | 32.57 | j | 29.82 | m | 18.65 | k | ----- | z |
2009 | 22.58 | l | 23.27 | f | 26.15 | e | 33.37 | 41.26 | l | 54.22 | c | 53.68 | c | 54.40 | a | 45.32 | b | 34.67 | d | 24.96 | b | 16.10 | 38.10 | c | ||
2010 | 28.50 | a | 29.25 | 30.52 | 34.33 | 41.77 | 51.20 | 54.61 | 53.26 | 43.83 | 39.65 | 27.57 | 23.71 | 38.18 | ||||||||||||
2011 | 21.03 | 24.39 | 33.35 | 33.43 | 40.52 | 48.53 | 54.42 | 55.26 | 47.40 | 38.23 | 27.87 | 14.77 | 36.60 | |||||||||||||
2012 | 22.23 | 24.66 | 32.26 | 37.10 | 43.45 | 49.93 | a | 60.16 | 54.48 | 44.40 | 32.74 | 30.63 | 26.74 | 38.23 | ||||||||||||
2013 | 6.94 | 26.43 | 28.94 | 36.87 | 45.77 | 52.67 | 59.97 | 57.29 | 51.00 | 33.12 | n | 20.00 | v | 11.74 | 37.76 | b | ||||||||||
2014 | 22.77 | 28.83 | p | ----- | z | ----- | z | 45.06 | 52.23 | 59.29 | 56.45 | 47.13 | 36.29 | 24.50 | 28.13 | 41.32 | c | |||||||||
2015 | 24.35 | 29.25 | 29.84 | 32.67 | 47.29 | 57.60 | 58.71 | 54.52 | 44.30 | 39.94 | 26.83 | 26.19 | 39.29 | |||||||||||||
2016 | 23.23 | 26.00 | 33.29 | 38.20 | 46.81 | 51.40 | 57.16 | f | 53.14 | b | 46.14 | w | 38.60 | a | 28.86 | a | 11.26 | 35.08 | b | |||||||
2017 | 9.45 | 25.54 | 35.04 | e | 35.47 | 43.59 | b | 53.52 | a | 59.17 | a | 56.32 | 47.30 | 33.35 | 32.93 | c | 19.45 | 37.59 | ||||||||
2018 | 26.94 | 26.39 | 29.48 | d | 38.13 | 51.10 | 52.79 | b | 57.67 | m | 53.81 | 43.57 | 36.26 | 22.28 | a | 25.35 | 36.92 | a | ||||||||
2019 | 24.00 | 27.57 | 28.10 | 40.60 | 46.26 | 52.30 | 57.42 | 57.39 | 48.30 | 29.13 | 22.83 | 28.55 | 38.54 | |||||||||||||
2020 | 28.48 | 24.24 | 29.48 | 35.17 | 44.71 | 52.90 | 56.97 | 56.74 | 45.83 | 34.68 | 27.63 | 19.35 | 38.02 | |||||||||||||
2021 | 26.13 | 24.29 | 26.71 | 33.93 | 45.29 | 57.87 | 63.03 | 56.42 | 44.57 | 39.61 | 31.07 | 25.84 | 39.56 | |||||||||||||
2022 | 21.42 | 18.79 | 31.55 | 32.17 | 43.45 | 51.87 | 60.48 | 61.13 | 50.23 | 36.55 | 22.83 | 22.90 | 37.78 | |||||||||||||
2023 | 26.03 | 20.54 | b | 28.84 | 34.90 | 49.61 | 53.33 | 60.39 | 58.74 | 48.10 | 39.29 | 28.77 | 28.87 | 39.78 | ||||||||||||
2024 | 23.81 | 29.90 | 31.32 | 38.32 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.34 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.35 | 25.52 | 30.26 | 35.62 | 45.13 | 52.35 | 58.15 | 56.02 | 46.67 | 35.00 | 27.12 | 21.93 | 38.36 | |||||||||||||
S.D. | 6.21 | 3.14 | 2.35 | 2.62 | 2.75 | 2.73 | 3.02 | 2.12 | 2.35 | 4.16 | 3.16 | 6.09 | 0.98 | |||||||||||||
SKEW | -1.58 | -0.61 | 0.23 | 0.72 | 0.49 | 0.15 | -0.39 | 0.66 | 0.31 | -0.70 | 0.03 | -0.56 | -0.08 | |||||||||||||
MAX | 28.50 | 29.90 | 35.04 | 41.55 | 51.10 | 57.87 | 63.03 | 61.13 | 51.00 | 39.94 | 32.93 | 28.87 | 39.78 | |||||||||||||
MIN | 6.94 | 18.79 | 26.15 | 32.17 | 40.52 | 46.62 | 53.00 | 53.14 | 43.57 | 26.54 | 22.28 | 11.26 | 36.60 | |||||||||||||
YRS | 15 | 14 | 17 | 20 | 16 | 18 | 15 | 16 | 15 | 18 | 15 | 15 | 10 |