YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1970 | ----- | z | ----- | z | ----- | z | 36.84 | n | 53.74 | b | 64.10 | d | 69.82 | a | 67.52 | a | 53.43 | a | 43.45 | 37.08 | 24.72 | b | 51.73 | d | ||
1971 | 29.94 | 34.72 | a | 35.10 | 44.58 | 54.48 | 59.20 | b | 69.61 | 71.29 | 52.43 | 44.34 | 34.21 | b | 25.23 | 46.26 | ||||||||||
1972 | 24.37 | a | 31.84 | 41.94 | 42.12 | b | 55.53 | b | 64.48 | 67.48 | 68.50 | 52.14 | a | 46.82 | 35.42 | 19.71 | 45.86 | |||||||||
1973 | 25.05 | 34.91 | 38.95 | 44.32 | 56.45 | 62.55 | 70.52 | a | 67.77 | 58.97 | 46.60 | 36.33 | 32.60 | b | 47.92 | |||||||||||
1974 | 25.44 | 34.45 | 39.83 | a | 45.36 | a | 52.55 | 67.28 | a | 68.18 | a | 66.33 | d | 58.81 | a | 46.52 | 35.55 | 28.40 | 47.39 | |||||||
1975 | 24.92 | a | 31.29 | 36.00 | 39.97 | 52.47 | 60.75 | 72.40 | 63.56 | 58.52 | 47.19 | 32.50 | 29.13 | a | 45.72 | |||||||||||
1976 | 27.66 | 30.26 | 33.97 | l | 43.43 | b | 56.32 | 59.28 | 70.34 | 63.27 | 59.82 | 46.23 | 37.68 | 26.24 | 47.32 | a | ||||||||||
1977 | 17.61 | 34.23 | 36.48 | a | 49.12 | 50.58 | 66.72 | a | 68.27 | 69.26 | 57.42 | 48.45 | 36.10 | a | 33.24 | 47.29 | ||||||||||
1978 | 29.55 | a | 34.25 | 44.98 | 45.17 | 51.98 | 61.02 | 68.56 | 65.35 | 56.23 | 48.55 | a | 32.78 | ----- | z | 48.95 | a | |||||||||
1979 | 11.32 | a | 31.75 | 40.32 | 46.02 | 55.16 | 63.00 | 69.79 | 67.40 | 61.17 | 50.45 | a | 30.98 | 30.33 | e | 46.47 | ||||||||||
1980 | 26.00 | 35.50 | a | 38.19 | 49.02 | 54.21 | 58.83 | 71.52 | 65.85 | 59.83 | 45.48 | b | 35.73 | 30.29 | 47.54 | |||||||||||
1981 | 30.74 | 31.71 | 40.63 | 47.55 | 53.77 | g | 61.13 | 66.42 | a | 69.85 | a | 57.76 | a | 45.83 | b | 37.90 | a | 30.90 | e | 47.31 | a | |||||
1982 | 20.89 | i | 29.80 | e | 37.60 | g | 38.39 | k | 50.55 | k | 61.33 | g | 66.36 | m | ----- | z | ----- | z | 46.21 | q | 30.28 | g | 32.33 | p | 29.80 | k |
1983 | 34.80 | p | 35.23 | o | 41.91 | o | 42.69 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.04 | s | 37.35 | c | 23.13 | 30.24 | j | |
1984 | 20.48 | 26.50 | 39.03 | 42.57 | 52.31 | 56.53 | a | 68.98 | 67.53 | 55.11 | b | 41.92 | 35.40 | 19.40 | 43.81 | |||||||||||
1985 | 19.26 | 24.00 | 33.87 | 48.32 | 54.76 | 62.27 | 72.35 | 62.60 | 50.16 | a | 43.12 | a | 23.50 | 8.76 | 41.91 | |||||||||||
1986 | 24.19 | 34.82 | 43.40 | 44.98 | a | 54.76 | 66.97 | 65.28 | a | 71.34 | 52.85 | 46.68 | a | 36.13 | 25.68 | 47.26 | ||||||||||
1987 | 16.93 | a | 33.04 | 39.66 | 50.08 | 56.94 | 63.72 | 64.83 | b | 64.76 | 59.55 | 48.18 | 34.75 | 27.65 | 46.67 | |||||||||||
1988 | 21.97 | 32.71 | a | 39.18 | 47.78 | 53.93 | a | 64.70 | 70.11 | 65.44 | 55.58 | 52.50 | 35.55 | 22.58 | 46.84 | |||||||||||
1989 | 19.44 | 18.88 | 39.00 | 48.53 | 51.24 | 62.25 | 68.73 | 63.53 | 56.23 | 44.94 | 32.93 | 25.98 | 44.31 | |||||||||||||
1990 | 30.71 | 29.77 | 40.10 | 51.40 | 51.55 | 61.83 | 70.18 | 67.80 | a | 62.50 | 45.05 | 35.10 | a | 16.92 | a | 46.91 | ||||||||||
1991 | 23.45 | 36.61 | 38.18 | 43.68 | 50.63 | 57.12 | 68.32 | 68.58 | 59.73 | 46.13 | 35.58 | 27.95 | 46.33 | |||||||||||||
1992 | 26.77 | 37.95 | a | 42.71 | 49.00 | 59.03 | 65.55 | b | 65.77 | 66.95 | 57.27 | 47.45 | a | 31.53 | a | 20.17 | d | 47.51 | ||||||||
1993 | 14.65 | a | 20.13 | a | 35.55 | a | 44.68 | 56.85 | 57.42 | 60.21 | 62.34 | 56.67 | 47.55 | 27.42 | 28.40 | 42.66 | ||||||||||
1994 | 31.77 | 29.75 | 41.11 | 47.53 | 56.37 | 61.67 | 72.25 | a | 68.47 | 59.72 | 45.16 | 29.45 | b | 23.34 | b | 47.22 | ||||||||||
1995 | 30.88 | b | 39.20 | 39.24 | 43.70 | b | 53.23 | 58.37 | 67.63 | a | 63.37 | 59.38 | 43.60 | 39.75 | 29.48 | 47.32 | ||||||||||
1996 | 29.56 | 31.03 | 41.10 | b | 45.95 | 51.84 | 61.02 | 71.13 | 67.21 | 55.25 | 46.56 | 36.95 | a | 32.30 | a | 47.49 | ||||||||||
1997 | 29.56 | 34.43 | a | 41.16 | 44.67 | 57.27 | 61.83 | 67.26 | 67.66 | 58.97 | 45.53 | 35.22 | 26.98 | 47.55 | ||||||||||||
1998 | 33.89 | 33.73 | 39.94 | 45.50 | 51.48 | b | 57.88 | 71.88 | a | 69.32 | 62.24 | a | 43.94 | 37.48 | a | 24.10 | 47.62 | |||||||||
1999 | 30.16 | 28.96 | 37.66 | 43.19 | a | 50.85 | 60.90 | 66.71 | 66.35 | 55.00 | a | 46.39 | 39.95 | 28.19 | 46.19 | |||||||||||
2000 | 29.63 | 35.50 | 39.40 | 49.12 | 54.63 | 63.03 | 69.74 | 68.18 | 57.14 | a | 45.85 | 29.28 | 25.45 | c | 47.25 | |||||||||||
2001 | 21.48 | a | 25.43 | 41.08 | 43.73 | 55.83 | a | 61.12 | b | 68.25 | a | 70.26 | 59.73 | 47.53 | 35.77 | b | 24.65 | 46.24 | ||||||||
2002 | 25.93 | b | 27.09 | 37.70 | a | 45.80 | 53.44 | 63.72 | 72.69 | 64.11 | 57.07 | 42.29 | 33.42 | 30.77 | 46.17 | |||||||||||
2003 | 33.55 | b | 32.66 | 42.68 | 43.64 | b | 54.50 | 63.78 | 73.74 | 68.77 | a | 59.50 | a | 50.10 | a | 32.02 | 32.18 | a | 48.93 | |||||||
2004 | 24.43 | b | 26.83 | 42.39 | 47.05 | a | 53.40 | b | 61.93 | 70.32 | 67.50 | 56.03 | a | 46.98 | 35.85 | 30.61 | 46.94 | |||||||||
2005 | 23.85 | 30.60 | b | 40.43 | a | 44.57 | a | 53.72 | a | 57.60 | 69.98 | 67.89 | 55.81 | a | 46.55 | 32.83 | 20.42 | a | 45.35 | |||||||
2006 | 28.63 | a | 28.82 | 35.31 | 45.72 | 54.85 | 63.85 | 73.60 | 65.08 | 56.97 | 45.34 | b | 36.33 | 24.11 | 46.55 | |||||||||||
2007 | 23.98 | 33.59 | 43.20 | a | 44.70 | 56.10 | 63.02 | 74.97 | 66.84 | 55.87 | 44.23 | 34.10 | 25.02 | 47.13 | ||||||||||||
2008 | 17.35 | 28.76 | 34.68 | 39.62 | 53.38 | g | 59.03 | 68.60 | a | 67.34 | 56.43 | i | 45.45 | 37.53 | 23.40 | a | 42.18 | b | ||||||||
2009 | 29.06 | 29.95 | 34.86 | i | 42.16 | a | 54.66 | 60.88 | 69.96 | c | 66.72 | b | 61.20 | 42.20 | c | 32.26 | c | 20.62 | b | 46.33 | a | |||||
2010 | 31.56 | e | 34.09 | a | 37.62 | f | 43.42 | d | 47.70 | c | 58.78 | c | 66.80 | c | 65.61 | c | 57.11 | h | 48.33 | h | 33.50 | g | 22.90 | b | 46.36 | d |
2011 | 21.92 | 28.59 | 37.05 | 40.48 | 48.37 | 55.95 | 66.16 | 68.32 | 61.03 | 46.71 | 32.21 | a | 23.38 | b | 44.18 | |||||||||||
2012 | 27.27 | 32.28 | 39.19 | 42.88 | j | 50.95 | 59.15 | 72.26 | 68.56 | 59.60 | a | 45.73 | 37.48 | 26.87 | 47.21 | a | ||||||||||
2013 | 14.47 | 30.80 | 38.15 | 42.92 | d | 54.42 | 61.43 | 72.60 | 69.66 | 59.35 | 41.94 | 33.97 | 17.90 | 44.80 | ||||||||||||
2014 | 27.50 | a | 32.70 | 39.44 | 44.27 | 54.56 | 61.54 | b | 72.37 | 67.40 | ----- | z | ----- | z | ----- | z | ----- | z | 49.97 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.16 | 31.25 | 39.33 | 45.25 | 53.75 | 61.47 | 69.46 | 67.01 | 57.55 | 45.99 | 34.51 | 25.48 | 46.34 | |||||||||||||
S.D. | 5.48 | 4.19 | 2.59 | 2.74 | 2.42 | 2.81 | 2.83 | 2.24 | 2.86 | 2.26 | 3.22 | 4.94 | 1.52 | |||||||||||||
SKEW | -0.61 | -0.91 | -0.14 | 0.13 | -0.35 | 0.06 | -0.65 | -0.31 | -0.53 | 0.39 | -1.15 | -0.88 | -1.24 | |||||||||||||
MAX | 33.89 | 39.20 | 44.98 | 51.40 | 59.03 | 67.28 | 74.97 | 71.34 | 62.50 | 52.50 | 39.95 | 33.24 | 48.93 | |||||||||||||
MIN | 11.32 | 18.88 | 33.87 | 39.62 | 47.70 | 55.95 | 60.21 | 62.34 | 50.16 | 41.92 | 23.50 | 8.76 | 41.91 | |||||||||||||
YRS | 42 | 43 | 39 | 41 | 41 | 43 | 43 | 43 | 40 | 41 | 42 | 42 | 34 |