YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.69 | a | 28.04 | g | 38.69 | k |
1964 | 26.65 | 30.16 | 35.90 | 43.70 | 51.29 | 58.28 | 67.73 | 63.73 | 54.20 | 46.68 | 34.90 | 32.68 | 45.49 | |||||||||||||
1965 | 30.58 | a | 36.70 | 34.92 | 48.43 | 50.65 | 58.98 | 66.06 | 64.57 | a | 51.86 | a | 49.32 | 39.48 | c | 27.40 | 46.58 | |||||||||
1966 | 30.58 | 30.89 | 39.73 | 46.02 | a | 56.42 | a | 59.10 | a | 67.06 | 67.41 | b | 62.08 | 44.20 | a | 40.45 | a | 30.27 | 47.85 | |||||||
1967 | 35.65 | 37.14 | 39.50 | 40.12 | a | 52.83 | a | 59.93 | 70.23 | 70.66 | l | 62.08 | 46.45 | a | 37.73 | 28.58 | 46.39 | a | ||||||||
1968 | 26.66 | 38.16 | a | 41.58 | 42.28 | 52.34 | 61.80 | 68.84 | 64.60 | j | 57.05 | 45.74 | 37.47 | 30.85 | a | 45.71 | a | |||||||||
1969 | 30.19 | 32.05 | 37.61 | 47.30 | 56.22 | a | 60.93 | 64.53 | l | 64.68 | 57.77 | 41.69 | 34.58 | 31.92 | 45.00 | a | ||||||||||
1970 | 33.95 | 36.68 | 37.32 | 39.52 | 52.40 | 62.53 | 68.65 | 67.03 | o | 52.78 | 42.63 | 38.32 | 29.55 | 44.94 | a | |||||||||||
1971 | 32.55 | 33.88 | 35.18 | 45.02 | 54.37 | a | 58.72 | 67.53 | 69.16 | c | 52.68 | 45.32 | 35.88 | 28.72 | m | 48.21 | a | |||||||||
1972 | 27.52 | 32.84 | 41.82 | 43.27 | 54.68 | 62.07 | 65.82 | c | 66.92 | 53.40 | 46.68 | 37.43 | 24.32 | a | 46.40 | |||||||||||
1973 | 26.90 | a | 33.86 | 37.50 | 43.33 | 54.29 | 60.95 | 67.92 | 66.60 | 55.95 | 46.35 | 36.52 | 33.60 | 46.98 | ||||||||||||
1974 | 26.74 | 33.41 | 38.73 | 44.00 | a | 50.89 | 64.17 | 66.11 | 63.74 | 57.43 | a | 44.68 | 36.33 | a | 29.44 | 46.30 | ||||||||||
1975 | 27.16 | 32.06 | a | 36.89 | c | 38.47 | 50.32 | 58.28 | 70.71 | 63.57 | a | 56.57 | 48.27 | 34.69 | a | 32.13 | 45.76 | |||||||||
1976 | 30.22 | a | 29.53 | 33.37 | a | 44.12 | 55.16 | 57.60 | 68.52 | 61.34 | 58.28 | 44.52 | 36.90 | 26.31 | 45.49 | |||||||||||
1977 | 19.47 | 32.55 | 36.87 | 48.60 | 49.16 | 65.58 | 67.15 | 65.67 | k | 57.34 | a | 46.90 | 35.83 | 34.48 | a | 44.90 | a | |||||||||
1978 | 33.31 | 35.05 | 43.58 | 45.32 | 50.29 | 59.40 | 66.00 | 64.45 | 55.58 | 45.55 | 31.98 | a | 27.63 | e | 46.51 | |||||||||||
1979 | 15.22 | b | 33.68 | 38.03 | 44.97 | 54.03 | 61.25 | 68.08 | 66.44 | 59.07 | b | 49.06 | 31.35 | 33.60 | 46.23 | |||||||||||
1980 | 27.92 | 36.88 | a | 37.97 | 48.90 | 53.35 | 57.68 | 67.63 | 63.37 | 58.18 | 45.05 | 36.75 | 29.23 | a | 46.91 | |||||||||||
1981 | 30.76 | 33.12 | 39.98 | 46.92 | 52.26 | 59.37 | 65.19 | 67.92 | 58.05 | 45.07 | c | 39.38 | 33.94 | 47.66 | ||||||||||||
1982 | 25.58 | 30.91 | 38.50 | a | 41.69 | a | 51.69 | 60.75 | 65.88 | b | 67.32 | 55.60 | 46.29 | 30.97 | a | 27.25 | a | 45.20 | ||||||||
1983 | 33.35 | 38.02 | a | 41.79 | 41.78 | 52.50 | 58.57 | 64.67 | a | 68.10 | a | 55.12 | 46.92 | 39.27 | 23.60 | 46.97 | ||||||||||
1984 | 19.45 | a | 29.12 | 40.00 | a | 43.27 | 53.23 | 57.27 | 68.71 | 67.73 | 54.98 | 43.40 | 37.20 | 23.18 | 44.79 | |||||||||||
1985 | 21.10 | 26.62 | 34.21 | 47.94 | d | 54.53 | 61.33 | 71.23 | 62.39 | 52.10 | e | 43.56 | 26.30 | 14.23 | 42.96 | |||||||||||
1986 | 29.02 | 37.26 | a | 44.39 | 44.73 | 53.61 | 64.70 | 62.69 | 68.73 | 52.30 | 46.48 | 39.30 | 26.22 | a | 47.45 | |||||||||||
1987 | 26.32 | 33.45 | 39.76 | 51.68 | 56.58 | 63.68 | 64.02 | 63.19 | 57.78 | 47.55 | 35.57 | 30.82 | 47.53 | |||||||||||||
1988 | 27.19 | 34.26 | 41.24 | 48.68 | 54.19 | 65.65 | 68.71 | 64.66 | 55.93 | 53.00 | 37.52 | 25.97 | 48.08 | |||||||||||||
1989 | 24.98 | 23.62 | 41.85 | 49.33 | 52.68 | 62.75 | 68.97 | 63.89 | 57.10 | d | 46.37 | 35.83 | a | 29.18 | 46.38 | |||||||||||
1990 | 32.61 | 31.73 | 42.60 | 51.94 | d | 52.27 | 61.27 | 69.05 | 68.05 | 61.97 | 47.47 | 39.42 | 16.81 | 47.93 | ||||||||||||
1991 | 24.16 | 36.91 | 40.03 | a | 45.04 | b | 50.34 | 57.32 | 68.69 | 72.42 | 59.45 | 47.58 | 35.22 | 29.18 | 47.19 | |||||||||||
1992 | 30.89 | 37.59 | 41.79 | 50.82 | 58.21 | 64.08 | 65.53 | 68.23 | 57.72 | a | 48.39 | 32.08 | 26.55 | 48.49 | ||||||||||||
1993 | 21.87 | 27.12 | 39.24 | 45.97 | 57.60 | 56.75 | 59.45 | 61.73 | g | 56.00 | 47.73 | 28.27 | 30.74 | 42.79 | a | |||||||||||
1994 | 32.37 | 29.64 | 42.94 | 47.98 | 55.58 | 62.22 | 70.47 | 68.10 | 59.63 | 45.82 | 30.10 | 28.97 | 47.82 | |||||||||||||
1995 | 33.69 | 38.36 | 39.44 | 44.27 | 52.76 | 58.05 | 67.24 | 63.90 | 62.65 | q | 43.81 | 41.15 | 31.08 | 46.70 | a | |||||||||||
1996 | 30.65 | 32.03 | 40.65 | 47.21 | a | 51.11 | 61.22 | 68.69 | g | 66.81 | 55.71 | a | 46.39 | 37.08 | 33.69 | 45.69 | a | |||||||||
1997 | 30.74 | 34.45 | 42.16 | 45.85 | 56.39 | 60.87 | 66.95 | 67.37 | 59.45 | 46.15 | 37.12 | 27.19 | 47.89 | |||||||||||||
1998 | 37.06 | 36.22 | a | 40.19 | e | 44.65 | 52.43 | a | 57.73 | 71.89 | 68.89 | 62.09 | a | 44.73 | 40.08 | 27.87 | 48.65 | |||||||||
1999 | 34.40 | a | 35.59 | 38.72 | f | 43.17 | 50.97 | 60.88 | 65.44 | d | 66.89 | 56.96 | d | 45.73 | 40.38 | 28.38 | c | 48.07 | a | |||||||
2000 | 32.26 | 38.14 | 39.57 | d | 49.97 | a | 54.71 | 62.72 | a | 67.95 | 67.76 | 55.17 | a | 46.95 | 30.18 | 28.98 | 47.86 | |||||||||
2001 | 24.63 | 30.38 | 42.90 | e | 44.04 | b | 57.31 | 61.13 | 67.71 | 69.61 | 58.00 | c | 47.26 | 36.58 | 27.75 | e | 47.27 | |||||||||
2002 | 30.65 | a | 29.70 | 38.95 | k | 46.53 | 53.85 | a | 63.17 | 71.65 | d | 63.03 | 56.41 | b | 41.96 | c | 33.19 | a | 33.76 | 47.63 | a | |||||
2003 | 35.55 | b | 32.59 | 44.02 | g | 44.38 | 54.10 | 62.84 | b | 73.21 | 69.57 | b | 58.52 | 50.93 | c | 33.17 | 34.47 | a | 49.94 | a | ||||||
2004 | 26.45 | c | 31.43 | 43.33 | e | 48.77 | 52.89 | c | 62.32 | 69.21 | 67.81 | 56.08 | 47.45 | 35.22 | 32.42 | 47.78 | ||||||||||
2005 | 29.07 | c | 32.14 | 41.10 | e | 46.50 | a | 53.90 | 58.52 | 70.63 | 68.02 | 54.88 | 46.98 | 34.17 | a | 27.34 | 46.94 | |||||||||
2006 | 34.44 | 31.45 | 39.07 | d | 47.15 | 55.85 | 64.92 | 73.68 | 65.81 | 56.95 | 44.48 | a | 39.95 | 27.55 | 48.44 | |||||||||||
2007 | 24.23 | 36.40 | c | 42.58 | e | 46.82 | 56.89 | 65.43 | c | 74.81 | 66.53 | b | 56.81 | c | 45.68 | a | 36.90 | 28.23 | 48.44 | |||||||
2008 | 26.24 | 34.67 | 37.61 | 41.64 | b | 54.69 | 60.95 | 69.70 | a | 67.79 | 55.67 | 46.57 | c | 38.78 | 28.32 | 46.89 | ||||||||||
2009 | 31.30 | a | 32.61 | ----- | z | 45.78 | 56.06 | 61.35 | 69.48 | 67.13 | a | 60.78 | 43.39 | 35.78 | 22.58 | 47.84 | a | |||||||||
2010 | 34.63 | 35.50 | 40.05 | 44.28 | 49.29 | 60.72 | 67.97 | 65.66 | 57.92 | 50.21 | 34.55 | 29.80 | a | 47.55 | ||||||||||||
2011 | 29.29 | 32.79 | 39.89 | 42.17 | 49.73 | 58.12 | 67.71 | 69.65 | 61.63 | 47.81 | 34.72 | 25.90 | 46.62 | |||||||||||||
2012 | 30.68 | a | 32.91 | 42.97 | 48.47 | 53.31 | 60.75 | 72.24 | 67.95 | 58.10 | 45.47 | 38.53 | 32.42 | 48.65 | ||||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.92 | 33.31 | 39.70 | 45.57 | 53.47 | 60.91 | 68.19 | 66.52 | 57.02 | 46.26 | 35.98 | 28.67 | 47.00 | |||||||||||||
S.D. | 4.64 | 3.26 | 2.63 | 3.04 | 2.29 | 2.42 | 2.84 | 2.35 | 2.65 | 2.17 | 3.28 | 4.10 | 1.22 | |||||||||||||
SKEW | -0.69 | -0.53 | -0.44 | -0.05 | 0.06 | 0.21 | -0.24 | -0.15 | 0.10 | 0.45 | -0.84 | -1.26 | -1.11 | |||||||||||||
MAX | 37.06 | 38.36 | 44.39 | 51.94 | 58.21 | 65.65 | 74.81 | 72.42 | 62.09 | 53.00 | 41.15 | 34.48 | 48.65 | |||||||||||||
MIN | 15.22 | 23.63 | 33.37 | 38.47 | 49.16 | 56.75 | 59.45 | 61.34 | 51.86 | 41.69 | 26.30 | 14.23 | 42.96 | |||||||||||||
YRS | 49 | 49 | 45 | 49 | 49 | 49 | 47 | 44 | 48 | 49 | 50 | 48 | 36 |