YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.35 | 26.30 | 15.84 | 26.50 | i | |||
1989 | 15.90 | 12.50 | 26.57 | a | 35.52 | a | 46.47 | a | 51.47 | 57.90 | 57.32 | 47.80 | 35.42 | 24.21 | a | 11.03 | 35.18 | |||||||||
1990 | 14.94 | 18.57 | 25.42 | 35.77 | 42.23 | a | 54.60 | 57.48 | 55.13 | 51.40 | 35.52 | 26.57 | 11.00 | 35.72 | ||||||||||||
1991 | 15.23 | 20.32 | 27.13 | a | 33.10 | 45.13 | 54.80 | 57.06 | 56.71 | 47.43 | 33.23 | 21.07 | 20.16 | 35.95 | ||||||||||||
1992 | 17.97 | 22.79 | 28.74 | 37.57 | 45.48 | 50.28 | a | 56.68 | 54.68 | 47.00 | 35.29 | 21.03 | 16.61 | 36.18 | ||||||||||||
1993 | 16.48 | 17.93 | 26.16 | 33.69 | a | 44.90 | 53.07 | a | 58.77 | a | 57.26 | 45.00 | 33.35 | 19.40 | 18.77 | 35.40 | ||||||||||
1994 | 17.14 | b | 16.75 | 28.23 | 34.20 | 48.16 | 55.70 | 56.48 | 58.81 | 48.80 | 37.23 | 25.47 | 20.74 | 37.31 | ||||||||||||
1995 | 18.71 | 23.00 | 26.68 | 31.52 | a | 41.71 | 52.07 | a | 55.74 | 58.87 | 48.31 | a | 32.90 | 24.77 | 18.90 | 36.10 | ||||||||||
1996 | 11.20 | a | 17.55 | 20.58 | 33.62 | a | 48.54 | g | 55.90 | a | 58.81 | 56.71 | 46.50 | 35.43 | a | 26.47 | 16.61 | 34.49 | a | |||||||
1997 | 15.39 | 20.04 | 27.74 | 29.79 | a | 43.42 | 53.40 | 58.81 | 57.30 | a | 51.43 | 38.00 | d | 23.27 | 19.42 | 36.50 | ||||||||||
1998 | 19.65 | 23.64 | 24.90 | 31.76 | a | 44.90 | a | 50.50 | 59.42 | 55.65 | 52.10 | 38.32 | 28.38 | a | 16.06 | 37.11 | ||||||||||
1999 | 19.06 | 20.82 | 26.66 | b | 32.52 | a | 42.52 | b | 51.80 | 59.26 | 57.58 | 46.60 | 33.45 | 24.97 | a | 17.42 | 36.05 | |||||||||
2000 | 15.93 | a | 22.00 | a | 29.03 | a | 33.00 | a | 43.77 | 53.30 | c | 58.17 | a | 57.13 | a | 47.79 | b | 36.42 | 19.30 | 15.23 | 35.92 | |||||
2001 | 12.50 | a | 18.71 | 27.48 | 33.66 | a | 44.06 | 53.37 | 59.77 | 55.39 | 46.50 | 33.35 | 27.30 | 15.93 | a | 35.67 | ||||||||||
2002 | 15.42 | 15.14 | 19.73 | a | 35.00 | a | 42.45 | 58.83 | 58.60 | a | 58.19 | 49.38 | a | 33.20 | a | 23.48 | a | 18.26 | 35.64 | |||||||
2003 | 20.03 | 17.54 | 27.16 | 35.90 | 43.87 | 49.90 | 60.48 | 57.10 | k | 45.04 | c | 37.48 | 24.10 | 17.48 | 34.45 | a | ||||||||||
2004 | 18.10 | 15.83 | 28.81 | 35.41 | a | 43.87 | 52.27 | 56.91 | h | 52.37 | a | 47.73 | 35.84 | 26.10 | 17.83 | a | 34.01 | a | ||||||||
2005 | 20.19 | 22.36 | 25.32 | 32.57 | 43.55 | 51.00 | 55.90 | 54.71 | 50.24 | a | 35.58 | 24.28 | a | 14.10 | 35.82 | |||||||||||
2006 | 17.00 | 13.68 | 24.80 | a | 35.52 | c | 46.57 | c | 55.34 | a | 60.03 | 59.55 | 45.83 | a | 37.13 | a | 30.42 | d | 21.93 | a | 37.32 | |||||
2007 | 10.42 | 16.11 | a | 29.73 | a | 31.07 | b | 43.48 | 51.37 | 56.35 | 58.97 | 49.59 | a | 35.27 | a | 22.55 | a | 13.79 | c | 34.89 | ||||||
2008 | 12.76 | b | 16.28 | 24.45 | 30.79 | a | 41.43 | a | 52.45 | a | 57.53 | a | 58.16 | 49.90 | 39.23 | 31.23 | 23.23 | 36.45 | ||||||||
2009 | 24.45 | 27.54 | 30.60 | a | 36.90 | 47.90 | 53.97 | 58.79 | c | 55.54 | g | 47.03 | 33.32 | 29.77 | 16.23 | 36.95 | a | |||||||||
2010 | 18.19 | 20.43 | 29.39 | 38.00 | 44.65 | 58.07 | a | 60.74 | 58.00 | b | 51.03 | 37.90 | 24.27 | 23.39 | 38.67 | |||||||||||
2011 | 17.39 | 17.07 | 29.13 | 36.93 | 42.65 | 55.86 | a | 62.19 | d | 61.00 | a | 47.83 | 37.23 | a | 28.57 | 17.55 | 37.78 | |||||||||
2012 | 23.77 | a | 22.86 | 31.43 | a | 41.18 | b | 45.39 | 57.76 | e | 59.90 | 56.93 | d | 47.38 | a | 35.45 | 27.53 | 19.47 | a | 39.09 | ||||||
2013 | 16.00 | 19.57 | 26.52 | 30.37 | 44.75 | c | 57.07 | c | 56.44 | d | 57.48 | d | 53.09 | g | 36.74 | 29.87 | 24.39 | 36.29 | a | |||||||
2014 | 23.26 | 26.36 | 30.52 | 37.67 | 46.16 | 56.10 | 60.13 | 57.16 | 53.17 | 40.74 | 28.57 | 26.81 | 40.55 | |||||||||||||
2015 | 26.48 | 27.96 | 32.23 | 38.83 | 46.52 | 55.57 | 59.55 | 57.94 | 53.80 | 45.23 | 35.47 | m | 24.40 | u | 44.41 | b | ||||||||||
2016 | 26.58 | 29.41 | 32.19 | 37.93 | 44.06 | 55.83 | 59.06 | 57.48 | 51.27 | 40.65 | 32.43 | 21.97 | 40.74 | |||||||||||||
2017 | 25.84 | 31.79 | 35.68 | 40.33 | 43.81 | 55.07 | 59.10 | 56.13 | 51.33 | 39.03 | 33.50 | 24.39 | 41.33 | |||||||||||||
2018 | 23.10 | 25.96 | 32.90 | 35.67 | 50.97 | 57.57 | 59.68 | 56.90 | 51.27 | 40.77 | 29.37 | 25.35 | 40.79 | |||||||||||||
2019 | 27.41 | b | 24.25 | 30.42 | 38.50 | 44.00 | 52.50 | 58.45 | 57.94 | 55.80 | 34.13 | 29.47 | 26.61 | 39.96 | ||||||||||||
2020 | 26.55 | 25.97 | 33.61 | 35.80 | 47.97 | 56.33 | 59.00 | 56.77 | 47.50 | 35.90 | 32.90 | 25.61 | 40.33 | |||||||||||||
2021 | 26.26 | 14.29 | 25.10 | 30.40 | 45.13 | 53.87 | 59.87 | 58.42 | 52.40 | 38.55 | 27.87 | 20.23 | 37.70 | |||||||||||||
2022 | 15.19 | 13.04 | 23.84 | 34.50 | 45.32 | 56.60 | 61.65 | 57.52 | 50.13 | 36.35 | 20.90 | 13.35 | 35.70 | |||||||||||||
2023 | 15.58 | 15.07 | 21.55 | 29.33 | 45.71 | 51.33 | 57.87 | 57.81 | 49.73 | 35.39 | 24.53 | 19.13 | 35.25 | |||||||||||||
2024 | 14.61 | 22.17 | 25.77 | 30.93 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.85 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.74 | 20.42 | 27.67 | 34.69 | 44.79 | 54.14 | 58.70 | 57.21 | 49.24 | 36.57 | 26.29 | 18.99 | 37.28 | |||||||||||||
S.D. | 4.76 | 4.89 | 3.55 | 3.05 | 2.03 | 2.44 | 1.58 | 1.60 | 2.60 | 2.66 | 3.74 | 4.21 | 2.01 | |||||||||||||
SKEW | 0.40 | 0.38 | -0.05 | 0.10 | 0.83 | 0.04 | -0.04 | -0.61 | 0.43 | 0.98 | 0.01 | 0.14 | 0.79 | |||||||||||||
MAX | 27.41 | 31.79 | 35.68 | 41.18 | 50.97 | 58.83 | 62.19 | 61.00 | 55.80 | 45.23 | 33.50 | 26.81 | 41.33 | |||||||||||||
MIN | 10.42 | 12.50 | 19.73 | 29.33 | 41.43 | 49.90 | 55.74 | 52.37 | 45.00 | 32.90 | 19.30 | 11.00 | 34.89 | |||||||||||||
YRS | 36 | 36 | 36 | 35 | 34 | 35 | 34 | 33 | 34 | 36 | 35 | 35 | 29 |