YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | 24.14 | 26.84 | 35.90 | 49.71 | 63.10 | 64.58 | 62.39 | 57.37 | 40.48 | 27.80 | 26.26 | 43.51 | a | |||||||||||
1981 | 24.87 | 24.79 | 33.77 | 45.03 | 51.48 | 60.63 | 64.19 | 60.97 | 53.70 | 45.29 | 33.77 | 25.10 | 43.63 | |||||||||||||
1982 | 22.00 | b | 22.29 | 31.87 | a | 40.43 | 49.73 | a | 57.90 | 64.06 | 62.73 | e | 55.37 | 38.77 | 30.93 | 22.65 | e | 41.56 | ||||||||
1983 | 19.47 | a | 27.11 | 31.32 | 33.33 | 45.04 | c | 55.67 | 62.39 | 60.96 | d | 56.00 | a | 46.65 | 35.66 | a | 16.73 | a | 40.86 | |||||||
1984 | 20.69 | b | 23.75 | a | 26.90 | a | 36.57 | b | 50.63 | a | 61.40 | 61.23 | 60.85 | e | 49.73 | 41.43 | a | 32.48 | e | 28.50 | e | 41.18 | ||||
1985 | 19.40 | a | 20.20 | c | 35.07 | a | 43.70 | 49.26 | 59.40 | 59.61 | c | 61.69 | b | 54.33 | 42.97 | 29.70 | 16.52 | d | 40.99 | |||||||
1986 | 20.87 | 25.92 | d | 33.57 | a | 43.37 | 49.03 | 59.27 | 62.28 | b | 61.15 | d | 55.57 | 43.50 | a | 30.77 | 24.58 | 42.49 | ||||||||
1987 | 20.60 | a | 28.00 | 27.14 | j | 36.37 | 51.80 | a | 59.43 | 61.90 | 61.60 | a | 54.59 | a | 44.16 | 32.28 | a | 22.89 | c | 43.06 | a | |||||
1988 | 20.43 | a | 24.72 | 29.23 | 38.70 | 48.63 | a | 57.93 | 62.19 | 61.42 | 53.40 | 44.20 | a | 33.41 | a | 22.13 | 41.37 | |||||||||
1989 | 24.13 | 24.25 | 33.58 | 43.10 | a | 54.23 | 57.90 | 61.29 | 61.39 | 50.93 | 39.81 | 28.76 | e | 16.52 | 41.32 | |||||||||||
1990 | 23.35 | 23.89 | 33.19 | 41.60 | 48.06 | 62.50 | 60.57 | a | 58.97 | 55.89 | b | 40.37 | a | 31.52 | a | 19.53 | a | 41.62 | ||||||||
1991 | 21.74 | 27.36 | 32.97 | 38.83 | 51.86 | b | 59.70 | 62.31 | b | 60.68 | c | 52.70 | c | 41.35 | 29.90 | 26.94 | 42.20 | |||||||||
1992 | 24.87 | 31.04 | a | 33.26 | 42.77 | 50.24 | b | 57.71 | b | 61.48 | 60.21 | b | 52.48 | c | 41.62 | b | 27.17 | 24.27 | a | 42.26 | ||||||
1993 | 23.83 | a | 24.96 | b | 31.34 | b | 38.21 | a | 48.97 | 58.57 | b | 66.13 | 61.55 | 51.18 | b | 38.10 | a | 26.03 | 22.57 | a | 40.95 | |||||
1994 | 19.10 | a | 20.56 | a | 33.84 | 38.93 | 51.74 | 61.70 | 62.70 | a | 61.42 | 53.07 | a | 41.90 | 33.27 | 26.20 | a | 42.04 | ||||||||
1995 | 25.65 | 29.04 | 31.77 | 38.27 | 50.19 | 58.00 | 61.10 | 62.00 | 54.73 | 39.97 | 31.34 | a | 29.67 | m | 43.82 | a | ||||||||||
1996 | 22.10 | k | 28.65 | c | 26.90 | 39.37 | 56.23 | 62.20 | 65.74 | 63.32 | 54.36 | b | 39.13 | a | 30.82 | b | 22.83 | b | 44.50 | a | ||||||
1997 | 22.97 | a | 25.00 | 29.65 | 36.48 | a | 50.63 | a | 58.21 | a | 61.66 | b | 60.48 | 56.90 | 42.64 | c | 28.67 | 21.50 | c | 41.23 | ||||||
1998 | 24.13 | a | 27.93 | a | 28.94 | 35.73 | 50.13 | 59.00 | 63.84 | 62.00 | 58.17 | 47.67 | a | 35.57 | 24.31 | b | 43.12 | |||||||||
1999 | 26.93 | b | 28.57 | 33.07 | a | 39.70 | 47.79 | c | 59.52 | a | 62.81 | 61.74 | 52.69 | d | 39.97 | a | 31.53 | 21.86 | b | 42.18 | ||||||
2000 | 21.74 | 28.38 | 32.30 | a | 41.03 | 52.48 | 61.00 | 62.52 | 61.23 | 52.80 | 47.07 | b | 27.43 | 20.82 | c | 42.40 | ||||||||||
2001 | 22.58 | 27.68 | 33.84 | 41.77 | 50.71 | 58.90 | 64.10 | 61.10 | 53.40 | 38.68 | 34.00 | b | 25.16 | 42.66 | ||||||||||||
2002 | 22.83 | b | 22.04 | 26.65 | 45.07 | 49.26 | 60.93 | 62.65 | 63.55 | 52.93 | 44.71 | 29.23 | 24.83 | a | 42.06 | |||||||||||
2003 | 22.77 | a | 25.29 | 30.87 | 38.28 | a | 51.35 | 58.07 | a | 61.52 | 62.71 | 50.93 | b | 45.77 | a | 33.34 | a | 21.38 | b | 41.86 | ||||||
2004 | 23.58 | 24.24 | 40.16 | 42.21 | a | 52.20 | a | 58.00 | 61.35 | 59.39 | 52.50 | 46.55 | 33.77 | 24.35 | 43.19 | |||||||||||
2005 | 27.19 | 30.21 | 31.48 | 38.60 | 50.13 | a | 58.37 | 61.39 | 61.35 | 55.63 | 43.97 | 28.48 | a | 19.71 | 42.21 | |||||||||||
2006 | 23.33 | a | 22.46 | 33.19 | 42.27 | 52.16 | 59.80 | 62.35 | 62.87 | 51.40 | 40.58 | 29.33 | 23.87 | a | 41.97 | |||||||||||
2007 | 19.52 | 23.15 | b | 34.00 | 35.50 | 49.45 | 57.07 | c | 59.87 | 62.06 | 57.00 | a | 42.13 | 28.70 | 24.53 | a | 41.08 | |||||||||
2008 | 18.00 | 23.33 | b | 31.58 | 35.47 | 49.03 | 60.60 | 61.68 | 60.58 | 50.50 | 40.55 | 29.07 | 22.32 | 40.23 | ||||||||||||
2009 | 22.23 | 26.75 | 31.71 | 36.70 | 50.35 | 59.93 | 63.90 | 61.61 | 50.93 | 39.26 | 29.67 | 19.16 | 41.02 | |||||||||||||
2010 | 19.90 | 23.07 | 29.19 | 39.43 | b | 48.26 | 60.83 | 62.81 | 60.26 | 56.83 | 41.87 | 26.13 | 24.77 | 41.11 | ||||||||||||
2011 | 16.90 | 18.54 | 31.48 | 40.20 | 48.35 | 61.23 | 65.65 | 66.26 | 53.57 | 41.71 | 29.43 | 24.39 | 41.48 | |||||||||||||
2012 | 22.29 | 26.34 | 35.71 | 43.53 | 51.55 | 61.20 | 63.06 | 64.06 | 53.13 | 40.03 | 30.67 | 23.97 | 42.96 | |||||||||||||
2013 | 23.26 | 22.57 | 29.29 | 34.70 | 48.61 | 60.93 | 61.90 | 60.81 | 55.80 | 38.90 | 26.90 | 21.48 | 40.43 | |||||||||||||
2014 | 18.16 | 22.93 | 26.32 | 37.07 | 47.03 | 61.45 | a | 62.13 | 61.32 | 57.77 | 43.55 | 27.20 | 25.68 | 40.88 | ||||||||||||
2015 | 22.58 | 25.32 | 31.16 | 39.40 | 47.94 | 59.17 | 63.26 | 60.06 | 56.80 | 46.48 | 29.03 | 24.10 | 42.11 | |||||||||||||
2016 | 22.81 | 24.00 | 32.29 | 39.57 | 46.00 | 58.47 | 64.71 | 59.90 | 56.10 | 43.16 | 34.33 | 21.65 | 41.92 | |||||||||||||
2017 | 23.68 | 28.11 | 33.29 | 40.30 | 44.97 | 58.53 | 61.16 | 60.65 | 52.23 | 41.58 | 32.30 | 20.45 | 41.44 | |||||||||||||
2018 | 14.55 | 20.54 | 31.84 | 34.30 | 50.94 | 61.47 | 62.71 | 60.52 | 53.67 | 44.19 | 25.33 | 21.29 | 40.11 | |||||||||||||
2019 | 20.52 | 21.43 | 29.58 | 38.13 | 47.26 | 56.03 | a | 62.03 | 62.48 | 59.30 | 37.58 | 26.70 | 24.29 | 40.44 | ||||||||||||
2020 | 22.42 | 22.28 | 36.94 | 36.50 | 48.45 | 58.33 | 64.97 | 62.48 | 48.07 | 36.10 | 32.60 | 18.61 | 40.65 | |||||||||||||
2021 | 20.84 | 18.93 | 28.58 | 39.23 | 51.26 | 61.57 | 62.19 | 60.87 | 54.33 | 40.68 | 28.93 | 25.03 | 41.04 | |||||||||||||
2022 | 14.81 | 15.61 | 25.10 | 38.63 | 49.90 | 61.80 | 65.06 | 63.52 | 55.53 | 42.65 | 28.03 | 23.35 | 40.33 | |||||||||||||
2023 | 22.10 | 23.00 | 30.39 | 36.67 | 52.00 | 58.00 | 64.58 | 65.35 | 56.70 | 41.74 | 30.13 | 23.94 | 42.05 | |||||||||||||
2024 | 19.23 | 27.62 | 31.32 | 38.86 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.06 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.69 | 24.58 | 31.48 | 39.11 | 49.89 | 59.58 | 62.72 | 61.65 | 54.11 | 42.03 | 30.28 | 22.81 | 41.62 | |||||||||||||
S.D. | 2.75 | 3.26 | 2.97 | 2.94 | 2.20 | 1.75 | 1.55 | 1.43 | 2.47 | 2.74 | 2.66 | 2.74 | 0.86 | |||||||||||||
SKEW | -0.54 | -0.32 | 0.13 | 0.21 | 0.11 | -0.05 | 0.37 | 1.06 | -0.15 | 0.20 | 0.19 | -0.59 | 0.28 | |||||||||||||
MAX | 27.19 | 31.04 | 40.16 | 45.07 | 56.23 | 63.10 | 66.13 | 66.26 | 59.30 | 47.67 | 35.66 | 28.50 | 43.63 | |||||||||||||
MIN | 14.55 | 15.61 | 25.10 | 33.33 | 44.97 | 55.67 | 59.61 | 58.97 | 48.07 | 36.10 | 25.33 | 16.52 | 40.11 | |||||||||||||
YRS | 43 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 40 |