YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | 39.55 | a | ----- | z | 54.80 | 61.65 | 61.55 | 55.06 | c | 40.93 | a | 30.81 | c | 24.26 | d | 46.08 | d | |||
1983 | 25.96 | c | 27.28 | c | 30.36 | b | 32.57 | a | 44.62 | a | 53.88 | a | 62.21 | 62.81 | 56.79 | a | 46.76 | 32.52 | c | 23.85 | e | 41.63 | ||||
1984 | 19.95 | b | 23.19 | e | 30.07 | b | 35.79 | b | 52.32 | a | 55.40 | 64.00 | 60.52 | 55.43 | 36.21 | 32.16 | a | 26.03 | a | 40.92 | ||||||
1985 | 21.08 | e | 22.06 | b | 31.61 | c | 41.65 | c | 48.08 | a | 58.43 | 62.55 | 62.40 | b | 50.47 | a | 44.80 | c | 30.45 | h | 24.54 | c | 42.51 | a | ||
1986 | 30.24 | f | 29.29 | d | 35.46 | c | 40.79 | d | 47.64 | c | 57.48 | c | 59.85 | 61.63 | 49.69 | c | 42.80 | c | 33.36 | e | 28.11 | d | 44.19 | a | ||
1987 | 22.37 | h | 26.81 | d | 28.09 | c | 39.62 | e | 45.98 | 57.67 | a | 60.65 | 59.45 | b | 53.25 | b | 47.03 | b | 31.54 | e | 21.52 | h | 45.01 | b | ||
1988 | 18.02 | d | 25.27 | c | 30.13 | a | 41.07 | 47.77 | a | 58.23 | 62.02 | 60.11 | 52.60 | a | 49.60 | 31.72 | 24.93 | d | 41.79 | |||||||
1989 | 19.59 | i | 25.61 | 38.13 | 44.68 | 50.27 | 56.67 | 64.38 | a | 59.10 | a | 55.15 | c | 43.35 | 36.97 | 25.84 | b | 45.47 | a | |||||||
1990 | 20.29 | j | 23.09 | a | 32.44 | 41.48 | a | 47.00 | 60.47 | 60.98 | 58.06 | 55.55 | 44.10 | 34.17 | 18.31 | 43.24 | a | |||||||||
1991 | 19.23 | 29.07 | 27.50 | 36.83 | 47.18 | 54.88 | 60.66 | 60.71 | 54.10 | 46.92 | 29.28 | a | 24.89 | 40.94 | ||||||||||||
1992 | 20.60 | a | 26.45 | 33.39 | 43.95 | 48.68 | 54.58 | 58.68 | 57.94 | 53.82 | 46.66 | 27.67 | 20.21 | 41.05 | ||||||||||||
1993 | 22.66 | 24.54 | 33.00 | 38.08 | 48.23 | 55.20 | 61.44 | 58.90 | 52.55 | 43.13 | 30.05 | b | 25.98 | 41.15 | ||||||||||||
1994 | 24.63 | a | 22.23 | 36.05 | a | 40.37 | 49.58 | 60.47 | 62.89 | 62.67 | a | 54.83 | a | 41.87 | 27.97 | 26.66 | 42.52 | |||||||||
1995 | 21.10 | 31.91 | 33.44 | 36.37 | 44.47 | 53.57 | a | 61.15 | 63.39 | 54.97 | 44.94 | 36.90 | 29.13 | 42.61 | ||||||||||||
1996 | 22.03 | 29.68 | a | 32.31 | 41.43 | 52.95 | 61.15 | 65.05 | 61.89 | 51.93 | 42.44 | 33.35 | 23.56 | 43.15 | ||||||||||||
1997 | 21.69 | 24.70 | a | 34.16 | 36.55 | a | 48.71 | 56.15 | 61.42 | 60.13 | 56.15 | 43.80 | a | 32.85 | 24.52 | a | 41.74 | |||||||||
1998 | 24.18 | 22.16 | 30.52 | 35.25 | 48.50 | 54.05 | 63.79 | 61.37 | 57.82 | 42.03 | 34.02 | 27.75 | a | 41.79 | ||||||||||||
1999 | 27.61 | 30.11 | a | 38.30 | a | 35.88 | a | 45.90 | 55.03 | 61.15 | 58.97 | a | 52.27 | 47.05 | 39.37 | 26.31 | 43.16 | |||||||||
2000 | 26.13 | 28.53 | 31.29 | 42.63 | 52.26 | 60.52 | 64.76 | 63.12 | a | 56.57 | a | 43.32 | 25.72 | 25.34 | 43.35 | |||||||||||
2001 | 21.69 | 24.64 | 32.18 | 40.18 | 51.32 | 59.58 | 63.97 | 61.02 | 57.53 | 47.48 | 35.65 | 23.47 | 43.23 | |||||||||||||
2002 | 22.15 | a | 24.25 | 29.79 | 44.40 | 51.06 | 63.15 | 66.18 | 63.68 | 54.75 | 41.66 | 32.90 | 22.06 | 43.00 | ||||||||||||
2003 | 30.13 | 25.45 | 30.58 | 40.02 | 51.29 | 58.48 | 68.65 | 63.32 | 54.50 | 48.89 | 31.12 | 26.61 | 44.09 | |||||||||||||
2004 | 21.55 | 21.33 | 37.44 | 40.55 | 49.61 | 58.40 | 62.26 | 60.18 | 52.42 | 42.16 | 32.55 | 26.44 | 42.07 | |||||||||||||
2005 | 26.89 | 26.59 | 30.74 | 38.27 | 50.10 | 56.23 | 66.66 | 61.61 | 55.37 | 45.90 | 36.60 | 26.63 | 43.47 | |||||||||||||
2006 | 24.81 | 27.02 | 30.27 | 42.48 | 51.92 | 61.12 | 64.81 | 61.02 | 50.27 | 43.68 | 37.25 | 26.55 | 43.43 | |||||||||||||
2007 | 21.69 | 28.50 | 36.29 | 41.90 | 48.98 | 59.98 | 64.94 | 64.19 | 55.67 | 45.26 | 39.10 | 21.74 | 44.02 | |||||||||||||
2008 | 15.16 | 22.83 | 29.95 | 37.77 | 47.11 | 57.23 | 63.18 | 62.78 | a | 55.25 | 46.06 | 37.15 | 24.37 | 41.57 | ||||||||||||
2009 | 24.69 | 26.02 | 33.76 | 38.67 | 52.53 | 54.42 | 64.23 | 61.69 | 55.03 | 40.40 | 37.15 | 17.42 | 42.17 | |||||||||||||
2010 | 21.50 | 20.57 | 28.37 | 38.57 | 46.84 | 59.42 | 64.55 | 60.74 | 57.53 | 46.92 | 30.67 | 29.79 | 42.12 | |||||||||||||
2011 | 19.52 | 20.12 | 34.23 | a | 40.43 | 44.32 | 58.00 | 65.35 | 64.81 | 56.10 | 44.98 | 32.57 | 24.10 | 42.04 | ||||||||||||
2012 | 26.52 | 22.72 | 33.69 | 43.95 | 50.98 | ----- | z | 65.16 | 63.26 | 57.88 | 46.79 | 37.20 | 23.23 | 42.85 | a | |||||||||||
2013 | 18.15 | 19.11 | 31.65 | 39.60 | 49.29 | 62.18 | 65.02 | 62.31 | 56.33 | 41.55 | 34.38 | 22.11 | 41.81 | |||||||||||||
2014 | 25.92 | 28.80 | 34.32 | 40.48 | 47.52 | 57.98 | 64.89 | 59.66 | 57.50 | 47.10 | 35.52 | 27.27 | 43.91 | |||||||||||||
2015 | 27.13 | 31.84 | 37.39 | 40.95 | 45.60 | 59.28 | 61.00 | 62.42 | 58.02 | 48.95 | 33.60 | 23.27 | 44.12 | |||||||||||||
2016 | 21.08 | 28.09 | 36.02 | 40.13 | 46.90 | 62.38 | 64.74 | 59.52 | 55.45 | a | 48.73 | 37.82 | 25.85 | 43.89 | ||||||||||||
2017 | 22.94 | 30.09 | 37.06 | 41.17 | 47.68 | 61.07 | 64.45 | 60.19 | 55.65 | 46.55 | 40.43 | 31.77 | 44.92 | |||||||||||||
2018 | 28.56 | 26.88 | 33.18 | 44.10 | 52.39 | 61.62 | 65.81 | 63.52 | 58.77 | 44.16 | 32.92 | 24.02 | 44.66 | |||||||||||||
2019 | 20.37 | 19.38 | 31.68 | 40.03 | 43.37 | 56.27 | 64.50 | 64.87 | 57.78 | 42.06 | 35.23 | 25.08 | 41.72 | |||||||||||||
2020 | 20.76 | 24.66 | 33.90 | 42.42 | 52.89 | 59.65 | 64.61 | 66.10 | 57.30 | 49.76 | 36.45 | 25.19 | 44.47 | |||||||||||||
2021 | 22.69 | 23.14 | 30.55 | 41.43 | 50.27 | 61.47 | 65.37 | 63.11 | 59.08 | 43.42 | 40.03 | 28.11 | 44.06 | |||||||||||||
2022 | 24.32 | 22.82 | 31.23 | 41.62 | 50.68 | 60.25 | 65.32 | 62.50 | 59.05 | 44.90 | 30.15 | 24.74 | 43.13 | |||||||||||||
2023 | 19.21 | 20.96 | 24.71 | 36.33 | 50.32 | a | 55.02 | 67.90 | 64.53 | 56.82 | 48.26 | 35.82 | 28.55 | 42.37 | ||||||||||||
2024 | 23.40 | 26.84 | 32.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.65 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.78 | 25.35 | 32.57 | 40.00 | 48.86 | 58.09 | 63.64 | 61.71 | 55.31 | 44.84 | 33.97 | 25.09 | 42.74 | |||||||||||||
S.D. | 3.23 | 3.36 | 3.03 | 2.73 | 2.58 | 2.72 | 2.18 | 1.95 | 2.36 | 2.87 | 3.47 | 2.81 | 1.14 | |||||||||||||
SKEW | 0.15 | 0.05 | -0.05 | -0.49 | -0.20 | -0.01 | -0.11 | 0.03 | -0.57 | -0.45 | -0.18 | -0.43 | 0.13 | |||||||||||||
MAX | 30.13 | 31.91 | 38.30 | 44.68 | 52.95 | 63.15 | 68.65 | 66.10 | 59.08 | 49.76 | 40.43 | 31.77 | 44.92 | |||||||||||||
MIN | 15.16 | 19.11 | 24.71 | 32.57 | 43.37 | 53.57 | 58.68 | 57.94 | 49.69 | 36.21 | 25.72 | 17.42 | 40.92 | |||||||||||||
YRS | 38 | 42 | 42 | 42 | 41 | 41 | 42 | 42 | 42 | 42 | 41 | 41 | 35 |