YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.24 | b | 61.00 | a | 52.89 | c | 41.77 | a | 28.43 | 24.74 | 45.68 | f | ||
1980 | 28.77 | 31.07 | a | 32.10 | 37.97 | a | 49.07 | c | 62.67 | 67.23 | e | 63.84 | 58.63 | 41.48 | 30.48 | a | 26.58 | 44.16 | ||||||||
1981 | 29.00 | 30.36 | 35.39 | 46.63 | 53.03 | 61.43 | 65.37 | a | 61.10 | a | 56.70 | 46.47 | a | ----- | z | 28.55 | 46.73 | a | ||||||||
1982 | 24.60 | a | 29.28 | c | 35.65 | 45.04 | b | 50.90 | 58.66 | a | 63.87 | a | 64.35 | 56.90 | 42.47 | a | 33.17 | 28.00 | 44.41 | |||||||
1983 | 26.13 | a | 31.27 | b | 36.84 | 39.17 | a | 45.39 | 54.75 | b | 65.19 | 63.74 | 60.23 | 50.23 | 37.73 | 22.93 | a | 44.47 | ||||||||
1984 | 25.94 | 23.86 | a | 33.65 | 39.76 | a | 55.43 | a | 61.63 | 63.71 | 64.06 | 54.03 | 45.19 | d | 33.90 | a | 32.32 | 44.46 | ||||||||
1985 | 24.81 | 27.67 | a | 36.58 | 43.03 | 52.58 | 58.80 | 61.42 | 62.20 | a | 54.93 | b | 44.61 | 33.20 | 20.33 | a | 43.35 | |||||||||
1986 | 26.16 | 33.75 | 37.84 | 48.07 | b | 51.38 | g | 61.34 | a | 62.81 | 61.83 | b | 54.67 | 44.52 | 32.50 | 26.87 | 44.58 | a | ||||||||
1987 | 24.22 | h | 29.96 | 32.16 | 40.55 | a | 51.32 | 59.07 | 64.87 | 64.13 | 54.27 | 47.71 | 27.52 | i | 25.16 | 46.92 | b | |||||||||
1988 | 23.79 | b | 30.17 | 31.35 | 40.17 | a | 50.42 | 60.50 | f | 64.29 | 64.10 | 54.03 | 47.39 | 33.10 | 23.81 | 42.06 | a | |||||||||
1989 | 25.74 | 31.81 | b | 37.00 | 44.90 | 55.55 | 62.34 | a | 66.77 | a | 63.94 | 56.61 | b | 43.57 | a | 33.62 | a | 19.23 | a | 45.09 | ||||||
1990 | 20.67 | a | 25.55 | h | 34.23 | i | 46.80 | 52.45 | b | 66.23 | 65.45 | 61.32 | 59.30 | 43.47 | a | 37.15 | d | 25.08 | g | 50.32 | c | |||||
1991 | 26.83 | b | 33.36 | 35.00 | b | 40.53 | 51.74 | 58.60 | 64.16 | 62.35 | 55.50 | 44.04 | h | 30.44 | c | 29.21 | c | 44.34 | a | |||||||
1992 | 26.73 | a | 30.48 | 34.84 | 41.28 | a | 52.00 | a | 56.17 | 62.48 | 62.07 | a | 55.93 | 45.40 | a | 27.93 | 28.50 | a | 43.65 | |||||||
1993 | 33.25 | c | 30.81 | a | 37.40 | a | 42.93 | b | 51.65 | 61.40 | 66.74 | 63.29 | 54.43 | 43.10 | b | 30.43 | b | 25.90 | b | 45.11 | ||||||
1994 | 23.10 | b | 27.25 | d | 37.58 | 43.50 | 53.19 | 63.10 | 65.40 | a | 66.61 | 56.93 | a | 44.81 | 36.25 | b | 29.82 | c | 45.63 | |||||||
1995 | 27.31 | b | 35.23 | b | 39.53 | a | 41.13 | 55.16 | 59.90 | 64.19 | 66.00 | 58.13 | 44.50 | a | 36.54 | b | 29.83 | b | 46.45 | |||||||
1996 | 25.33 | d | 33.71 | a | 32.83 | b | 41.58 | d | 56.27 | a | 63.17 | a | 67.03 | 64.33 | a | 55.10 | 45.56 | d | 33.70 | 25.17 | h | 47.15 | a | |||
1997 | 27.72 | b | 30.64 | 37.48 | 41.72 | a | 55.23 | a | 59.93 | 65.52 | 64.45 | 60.43 | 43.42 | 33.92 | f | 25.29 | g | 48.66 | b | |||||||
1998 | 27.58 | 30.85 | b | 34.13 | 38.03 | a | 52.39 | 60.17 | 66.55 | 62.71 | 59.50 | 48.19 | 36.07 | 25.23 | a | 45.12 | ||||||||||
1999 | 28.00 | a | 31.56 | a | 37.30 | a | 41.64 | b | 54.06 | 60.80 | 67.26 | 64.77 | 58.33 | 41.23 | 33.90 | 25.37 | a | 45.35 | ||||||||
2000 | 27.40 | a | 31.86 | a | 35.77 | a | 45.03 | 56.67 | a | 63.40 | 66.90 | 62.39 | 55.68 | b | 43.13 | a | 26.30 | 21.27 | a | 44.65 | ||||||
2001 | 20.84 | 28.11 | 35.83 | a | 41.19 | c | 53.45 | b | 62.69 | a | 63.76 | b | 65.90 | 57.39 | b | 46.27 | a | 39.24 | a | 25.62 | b | 45.02 | ||||
2002 | 26.54 | e | 27.19 | a | 33.73 | e | 50.07 | 53.26 | 65.48 | a | 65.58 | 66.10 | 57.73 | 46.00 | 31.03 | 27.67 | a | 45.86 | ||||||||
2003 | 27.04 | c | 32.29 | 35.66 | b | 45.10 | a | 53.07 | a | 62.79 | a | 65.77 | 64.90 | 58.43 | 48.29 | 36.36 | b | 24.34 | b | 46.17 | ||||||
2004 | 26.80 | a | 31.18 | a | 39.70 | a | 46.10 | 55.13 | 59.66 | a | 64.23 | 60.61 | 54.47 | 48.52 | 32.90 | 27.10 | 45.53 | |||||||||
2005 | 29.61 | 34.21 | 36.13 | 36.31 | a | 51.90 | a | 58.33 | 63.43 | a | 60.06 | 54.03 | 41.03 | 28.80 | 25.94 | 43.32 | ||||||||||
2006 | 23.00 | a | 30.37 | a | 38.67 | a | 47.79 | a | 51.81 | 58.53 | 62.35 | 60.74 | 48.47 | 38.16 | 26.40 | 19.00 | 42.11 | |||||||||
2007 | 20.52 | 32.39 | 35.68 | 40.79 | a | 49.81 | 57.27 | 62.16 | 62.58 | 57.83 | 41.90 | 30.73 | 24.68 | 43.03 | ||||||||||||
2008 | 24.68 | 30.61 | a | 33.28 | b | 36.21 | a | 51.47 | a | 60.67 | 62.13 | 62.00 | 52.57 | 40.23 | 26.00 | 25.52 | 42.11 | |||||||||
2009 | 20.90 | 30.04 | 39.03 | a | 43.97 | 56.26 | 62.00 | 66.81 | 62.39 | 55.03 | 42.40 | a | 28.53 | 25.13 | 44.37 | |||||||||||
2010 | 23.23 | 29.22 | a | 32.10 | 42.93 | 49.55 | 62.20 | 65.42 | 64.19 | 58.30 | 45.35 | 26.80 | 21.84 | 43.43 | ||||||||||||
2011 | 19.19 | 21.19 | b | 37.37 | a | 46.73 | 51.10 | 62.09 | g | 69.23 | r | 68.00 | 56.33 | 43.35 | 29.40 | 25.90 | a | 39.86 | b | |||||||
2012 | 24.26 | 22.83 | 32.58 | 44.30 | 50.90 | 61.03 | 64.03 | 65.48 | 54.83 | 44.35 | 31.70 | 24.23 | 43.38 | |||||||||||||
2013 | 24.39 | 24.82 | 34.52 | 42.97 | 51.03 | 63.93 | 65.29 | 65.42 | 59.67 | 42.35 | 32.73 | 23.71 | 44.24 | |||||||||||||
2014 | 22.32 | 28.63 | a | 34.48 | 42.13 | 48.71 | 64.77 | 65.61 | 64.52 | 60.63 | 45.10 | 27.73 | 27.26 | 44.32 | ||||||||||||
2015 | 24.84 | 29.07 | 33.71 | 43.20 | 49.74 | 62.20 | 66.81 | 65.06 | 61.33 | 49.61 | 31.07 | 21.81 | 44.87 | |||||||||||||
2016 | 22.84 | 24.24 | 34.26 | 39.63 | 45.77 | 60.17 | 66.00 | 62.52 | 58.97 | 46.19 | 35.80 | 29.00 | 43.78 | |||||||||||||
2017 | 24.03 | a | 30.82 | 37.87 | 41.57 | 48.13 | 59.03 | 62.76 | j | ----- | z | 55.23 | 44.65 | 33.00 | 26.16 | 40.05 | b | |||||||||
2018 | 22.26 | d | 28.68 | f | 30.33 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.26 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.16 | 29.79 | 35.54 | 42.64 | 52.04 | 60.95 | 64.91 | 63.55 | 56.52 | 44.53 | 32.03 | 25.52 | 44.41 | |||||||||||||
S.D. | 2.91 | 3.19 | 2.24 | 3.22 | 2.71 | 2.50 | 1.61 | 1.85 | 2.65 | 2.67 | 3.52 | 3.02 | 1.11 | |||||||||||||
SKEW | 0.19 | -0.91 | -0.01 | 0.12 | -0.38 | -0.19 | -0.40 | 0.13 | -0.45 | 0.06 | 0.04 | -0.22 | -0.27 | |||||||||||||
MAX | 33.25 | 35.23 | 39.70 | 50.07 | 56.67 | 66.23 | 67.26 | 68.00 | 61.33 | 50.23 | 39.24 | 32.32 | 46.45 | |||||||||||||
MIN | 19.19 | 21.19 | 31.35 | 36.21 | 45.39 | 54.75 | 61.42 | 60.06 | 48.47 | 38.16 | 26.00 | 19.00 | 42.11 | |||||||||||||
YRS | 38 | 37 | 37 | 38 | 37 | 36 | 37 | 38 | 39 | 38 | 36 | 36 | 28 |