YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.55 | 25.87 | 14.71 | 24.71 | i | |||
1977 | 11.65 | 21.78 | a | 26.39 | 36.07 | 39.29 | 53.70 | 53.13 | 54.10 | 43.33 | 32.48 | ----- | z | 27.13 | 36.28 | a | ||||||||||
1978 | 26.40 | a | 27.32 | ----- | z | 35.86 | a | 39.67 | a | 47.10 | 53.87 | 49.55 | 41.55 | a | 31.06 | 20.30 | 15.35 | 35.28 | a | |||||||
1979 | 3.03 | 22.21 | 28.68 | 32.97 | 42.00 | 47.33 | 53.70 | a | 52.45 | 43.23 | 36.06 | 20.73 | 21.77 | 33.68 | ||||||||||||
1980 | 19.58 | 27.17 | 27.37 | a | 36.60 | 42.16 | ----- | z | 54.16 | 47.61 | 41.80 | ----- | z | ----- | z | 21.13 | 35.29 | c | ||||||||
1981 | 24.03 | 22.86 | 27.23 | 33.59 | a | 39.68 | 46.20 | ----- | z | 51.74 | 47.20 | ----- | z | ----- | z | 26.81 | 35.48 | c | ||||||||
1982 | 16.16 | 20.75 | 30.07 | a | 32.30 | 40.39 | 51.40 | 56.29 | 54.97 | a | 44.11 | b | 34.90 | 25.59 | a | 22.13 | 35.75 | |||||||||
1983 | 24.68 | 31.25 | 35.06 | 34.24 | a | 43.10 | a | 49.57 | 55.33 | a | 58.61 | 43.38 | a | 37.35 | 33.67 | 18.00 | 38.69 | |||||||||
1984 | 16.68 | 22.62 | 31.84 | 35.63 | 42.45 | 49.13 | 57.48 | 58.48 | 41.57 | 32.26 | 30.20 | 13.65 | 36.00 | |||||||||||||
1985 | 11.03 | 17.96 | 25.61 | 37.87 | 45.45 | 51.47 | 59.65 | 50.48 | ----- | z | 32.87 | 18.27 | 4.68 | 32.30 | a | |||||||||||
1986 | 18.35 | 32.00 | 36.42 | 36.57 | 45.03 | 55.21 | a | 53.33 | a | 56.87 | 45.07 | c | 35.84 | 30.53 | 20.13 | a | 38.78 | |||||||||
1987 | 18.48 | 27.39 | 32.39 | 39.00 | 47.48 | 52.90 | 53.90 | a | 51.35 | 44.80 | 35.13 | 30.70 | 23.55 | 38.09 | ||||||||||||
1988 | 17.00 | 25.76 | 30.03 | 37.73 | 43.35 | 54.50 | 55.58 | 51.48 | 41.83 | 40.26 | 32.03 | 20.06 | 37.47 | |||||||||||||
1989 | 13.00 | 10.67 | a | 32.13 | a | 38.33 | 41.61 | 51.90 | 56.00 | 52.00 | 44.50 | 36.23 | 25.07 | 18.48 | 34.99 | |||||||||||
1990 | 25.39 | 22.50 | 30.29 | 40.41 | a | 41.48 | 50.77 | 56.90 | 55.59 | b | 49.43 | 34.48 | 27.47 | 5.73 | a | 36.70 | ||||||||||
1991 | 15.71 | 29.18 | 31.16 | 35.40 | 42.03 | 48.00 | 55.35 | 56.87 | 46.29 | b | 35.83 | a | 28.00 | 22.00 | a | 37.15 | ||||||||||
1992 | 23.23 | a | 30.00 | 33.13 | a | 37.87 | 43.55 | 52.00 | c | 53.07 | a | 54.39 | c | 44.60 | 37.97 | 27.43 | 21.23 | 38.21 | ||||||||
1993 | 18.32 | 22.14 | 32.68 | 36.57 | 47.07 | a | 48.20 | 50.25 | c | 51.86 | c | 44.04 | d | 37.48 | 19.41 | a | 24.84 | 36.07 | ||||||||
1994 | 27.55 | 24.26 | a | 31.32 | 38.37 | 46.19 | 49.93 | 56.76 | b | 55.67 | a | 46.40 | 35.90 | 24.20 | 22.73 | a | 38.27 | |||||||||
1995 | 27.58 | 29.79 | 31.70 | a | 36.34 | a | 44.39 | c | ----- | z | 56.00 | 50.60 | a | 47.29 | b | 33.58 | 33.83 | a | 25.87 | 37.91 | a | |||||
1996 | 26.00 | 26.29 | a | 32.62 | b | 36.64 | b | 43.35 | 49.83 | a | 55.97 | a | ----- | z | 42.47 | 34.17 | a | 30.63 | 30.11 | d | 37.10 | a | ||||
1997 | 25.65 | 26.67 | a | 31.77 | a | 35.73 | ----- | z | 51.63 | 54.57 | a | 54.33 | a | 49.31 | a | 35.58 | 29.83 | a | 21.65 | 37.88 | a | |||||
1998 | 28.39 | 30.18 | 31.17 | a | 36.66 | a | 45.06 | 48.62 | a | 59.77 | 55.58 | 51.34 | a | 34.43 | a | 31.17 | a | 19.74 | 39.34 | |||||||
1999 | 26.41 | b | 27.26 | e | 30.19 | d | 32.96 | b | 40.58 | 50.43 | 53.45 | 55.24 | b | 44.45 | a | 36.13 | 33.43 | 26.42 | 38.08 | |||||||
2000 | 26.77 | a | 31.71 | a | 31.21 | b | 40.00 | a | 46.43 | a | ----- | z | 58.20 | a | 55.87 | 45.53 | 39.43 | a | 24.59 | a | 24.81 | 38.60 | a | |||
2001 | 20.00 | a | 23.79 | 33.03 | 34.20 | 45.68 | 50.32 | b | 58.23 | 58.26 | 47.87 | 36.26 | 32.62 | a | 24.26 | d | 38.71 | |||||||||
2002 | 25.55 | 21.96 | a | 28.87 | a | 36.90 | 43.21 | b | 53.63 | 61.10 | 53.68 | 46.48 | a | 33.68 | 27.17 | 28.40 | a | 38.38 | ||||||||
2003 | 30.81 | 26.57 | 33.83 | a | 37.55 | a | 44.40 | a | 53.50 | 61.03 | b | 59.41 | b | 47.77 | 41.80 | a | 25.43 | b | 30.00 | b | 41.01 | |||||
2004 | 21.60 | a | 26.00 | 33.63 | a | 38.27 | 44.58 | 53.27 | 59.71 | 57.42 | 47.87 | 39.80 | a | 30.33 | 27.00 | 39.96 | ||||||||||
2005 | 25.58 | 24.85 | b | 32.30 | a | 36.73 | 45.20 | a | 49.93 | 58.97 | 56.90 | ----- | z | 38.58 | 28.17 | 20.71 | 37.99 | a | ||||||||
2006 | 28.77 | a | 23.43 | 32.26 | 38.55 | a | 45.94 | 55.63 | 62.23 | a | 55.42 | 46.83 | 36.13 | 31.82 | b | 22.32 | 39.94 | |||||||||
2007 | 18.29 | 28.00 | 34.36 | c | 37.07 | a | 46.48 | 52.87 | 63.18 | c | 55.87 | 47.93 | a | 38.60 | a | 27.87 | 24.32 | 39.57 | ||||||||
2008 | 21.29 | 26.52 | 29.90 | a | 31.38 | d | 45.50 | a | 50.93 | a | 58.81 | 57.57 | a | 46.00 | 37.62 | b | 32.87 | 21.45 | 38.32 | |||||||
2009 | 24.45 | 26.00 | a | 29.61 | 36.03 | a | 45.00 | 54.28 | a | 59.35 | 56.35 | e | 49.31 | d | 35.83 | a | 29.20 | 17.43 | a | 38.57 | ||||||
2010 | 28.48 | 30.89 | 32.19 | 34.17 | 39.55 | 51.03 | 54.93 | a | 53.84 | 46.10 | 40.77 | 27.60 | 24.48 | 38.67 | ||||||||||||
2011 | 19.68 | 22.57 | 31.13 | 30.83 | 42.10 | 48.83 | 55.48 | 58.84 | 50.10 | 40.48 | 27.93 | 18.03 | 37.17 | |||||||||||||
2012 | 24.19 | 26.41 | 34.35 | 39.70 | 42.35 | 50.97 | 62.10 | 57.87 | 47.03 | 36.32 | 32.73 | 28.52 | 40.21 | |||||||||||||
2013 | 8.87 | 27.29 | 30.84 | 36.47 | 44.48 | 52.33 | 60.58 | 58.19 | 51.10 | 34.87 | 27.47 | 13.00 | 37.12 | |||||||||||||
2014 | 22.03 | 28.00 | 33.45 | 36.97 | a | 44.65 | 52.40 | 60.00 | 57.61 | 51.13 | 41.48 | 26.47 | 30.26 | 40.37 | ||||||||||||
2015 | 24.22 | d | 32.29 | 33.23 | a | 34.89 | b | 44.42 | 57.43 | 60.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.95 | e | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.41 | 25.75 | 31.41 | 36.24 | 43.56 | 51.31 | 57.07 | 54.94 | 46.08 | 36.36 | 28.07 | 21.61 | 38.05 | |||||||||||||
S.D. | 6.17 | 4.24 | 2.36 | 2.26 | 2.25 | 2.55 | 3.11 | 2.95 | 2.81 | 2.69 | 4.06 | 5.88 | 1.71 | |||||||||||||
SKEW | -0.93 | -1.06 | -0.48 | -0.48 | -0.30 | 0.15 | 0.08 | -0.55 | 0.15 | 0.29 | -0.69 | -0.98 | -0.57 | |||||||||||||
MAX | 30.81 | 32.29 | 36.42 | 40.41 | 47.48 | 57.43 | 63.18 | 59.41 | 51.34 | 41.80 | 33.83 | 30.26 | 41.01 | |||||||||||||
MIN | 3.03 | 10.67 | 25.61 | 30.83 | 39.29 | 46.20 | 50.25 | 47.61 | 41.55 | 31.06 | 18.27 | 4.68 | 33.68 | |||||||||||||
YRS | 39 | 39 | 38 | 39 | 38 | 36 | 38 | 37 | 36 | 37 | 36 | 39 | 28 |