YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.95 | i | 56.25 | d | 44.60 | 34.90 | a | 29.57 | j | 45.25 | i | |
1963 | 14.63 | a | 32.86 | 33.44 | 41.15 | g | 51.35 | 56.82 | 62.71 | b | 64.33 | b | 59.05 | 49.13 | 34.48 | a | 24.71 | b | 43.95 | a | ||||||
1964 | 23.88 | a | 25.14 | 28.16 | 36.67 | 44.61 | 56.18 | 65.79 | 59.03 | 50.73 | 44.13 | 32.58 | 22.71 | 40.80 | ||||||||||||
1965 | 26.84 | 28.46 | 27.27 | a | 40.77 | 46.82 | 56.85 | 64.67 | a | 62.52 | 47.22 | 46.73 | 36.42 | 24.61 | 42.43 | |||||||||||
1966 | 24.85 | 28.32 | 30.73 | 39.27 | 52.60 | a | 55.15 | 63.95 | 62.03 | 59.05 | 41.74 | 33.86 | a | 28.73 | 43.36 | |||||||||||
1967 | 29.16 | b | 27.75 | 32.70 | a | 39.78 | a | 47.37 | 58.13 | 65.92 | g | 66.24 | h | 60.18 | b | 42.77 | 31.98 | 22.87 | 39.27 | b | ||||||
1968 | 22.72 | a | 31.29 | 37.68 | 38.33 | 48.85 | 56.26 | a | 64.50 | a | 60.10 | 52.25 | 41.11 | 32.10 | 21.11 | 42.19 | ||||||||||
1969 | 20.66 | 26.66 | 32.35 | 42.28 | 51.92 | 57.47 | 61.69 | 63.02 | 55.07 | 40.18 | 33.00 | 26.63 | 42.58 | |||||||||||||
1970 | 25.15 | 30.00 | q | 33.71 | l | 36.02 | 48.73 | 60.80 | 65.68 | 64.05 | a | 48.62 | 40.52 | 32.35 | 22.72 | a | 44.46 | b | ||||||||
1971 | 24.52 | 26.48 | 30.18 | 38.77 | 49.76 | 54.45 | b | 62.95 | 67.61 | 48.95 | 40.94 | 30.52 | 22.45 | 41.46 | ||||||||||||
1972 | 20.65 | 26.34 | 33.48 | 36.33 | 48.63 | 58.35 | 61.94 | 66.10 | 49.22 | 43.94 | 32.00 | 19.68 | a | 41.39 | ||||||||||||
1973 | 20.55 | a | 28.09 | 35.15 | 39.93 | 49.24 | 56.48 | 64.34 | 63.47 | 53.00 | 43.23 | c | 29.55 | 28.63 | 42.64 | |||||||||||
1974 | 19.35 | 29.02 | 30.98 | 39.53 | 44.92 | a | 61.12 | 63.68 | 61.50 | 54.95 | a | 45.68 | 33.72 | 25.26 | 42.48 | |||||||||||
1975 | 24.18 | 24.21 | 31.86 | b | 34.85 | 43.06 | 52.88 | 68.42 | 58.40 | 54.90 | 41.63 | 27.90 | 26.53 | 40.74 | ||||||||||||
1976 | 25.18 | 25.84 | 28.63 | 39.48 | 50.19 | 53.07 | 63.06 | 60.66 | 55.78 | 43.76 | 34.15 | 23.66 | 41.96 | |||||||||||||
1977 | 21.35 | a | 31.12 | 31.15 | 42.65 | 46.84 | 60.48 | 60.92 | 62.77 | 51.57 | 43.03 | 27.33 | 25.02 | 42.02 | ||||||||||||
1978 | 27.60 | 30.98 | 36.60 | 42.73 | 46.16 | 56.43 | 62.61 | 60.42 | 53.47 | 44.48 | 26.82 | 17.58 | 42.16 | |||||||||||||
1979 | 12.39 | 27.29 | 35.06 | 39.40 | 49.71 | 57.38 | 63.53 | 64.11 | 57.15 | 45.45 | 29.23 | 28.11 | 42.40 | |||||||||||||
1980 | 17.74 | 29.97 | 31.87 | 44.05 | 49.60 | a | 56.22 | 62.74 | 58.08 | 54.43 | 45.50 | 33.80 | 28.69 | 42.72 | ||||||||||||
1981 | 31.23 | 29.86 | 38.37 | 42.20 | 49.00 | 53.12 | 61.66 | 66.11 | 55.13 | 41.97 | 35.45 | 26.07 | b | 44.18 | ||||||||||||
1982 | 22.22 | a | 22.29 | 34.56 | d | 36.12 | 46.29 | 58.48 | 62.58 | 64.24 | 53.07 | 42.74 | 28.43 | 24.97 | 41.33 | |||||||||||
1983 | 28.81 | 31.70 | 37.45 | a | 40.92 | 49.26 | 56.29 | a | 60.21 | ----- | z | 50.28 | 43.69 | 34.52 | 15.39 | 40.77 | a | |||||||||
1984 | 25.27 | 30.34 | 36.66 | 41.57 | 47.15 | 55.60 | 64.37 | 64.61 | 50.38 | 40.69 | 30.59 | a | 21.42 | 42.39 | ||||||||||||
1985 | 21.60 | 22.32 | 32.81 | 43.35 | 52.08 | 57.53 | 68.63 | 59.37 | 49.03 | 39.42 | 22.75 | 20.38 | a | 40.77 | ||||||||||||
1986 | 27.27 | 29.00 | 39.32 | 41.78 | 50.89 | 63.02 | 58.90 | 65.60 | 50.93 | 46.13 | 31.60 | 24.10 | 44.05 | |||||||||||||
1987 | 22.47 | 30.86 | 35.15 | 46.65 | 53.90 | 59.74 | a | 62.05 | 59.00 | 57.55 | b | 46.92 | 35.22 | 23.98 | 44.46 | |||||||||||
1988 | 22.81 | 31.67 | 35.24 | 44.98 | 49.31 | 61.65 | 63.87 | 62.76 | 54.22 | 50.18 | 33.35 | 24.15 | 44.51 | |||||||||||||
1989 | 26.95 | 23.28 | c | 32.69 | 42.43 | 48.42 | 57.87 | 66.56 | 61.56 | 54.25 | 44.18 | 34.47 | 27.42 | 43.34 | ||||||||||||
1990 | 29.48 | 27.27 | 35.85 | 46.80 | 48.89 | 57.02 | 65.61 | 63.81 | 60.18 | 41.10 | 33.48 | b | 18.52 | d | 44.00 | |||||||||||
1991 | 23.39 | 34.80 | 33.44 | 40.38 | 47.63 | 53.50 | 63.65 | 64.62 | a | 55.33 | a | 41.74 | 30.22 | 24.90 | a | 42.80 | ||||||||||
1992 | 25.23 | 33.88 | a | 40.87 | a | 43.04 | b | 52.66 | c | 60.31 | a | 59.93 | a | 60.69 | 49.50 | 46.63 | 31.03 | a | 22.31 | 43.84 | ||||||
1993 | 21.58 | 25.02 | 37.40 | 41.34 | a | 54.76 | 54.30 | 56.19 | b | 58.60 | b | 52.65 | 45.35 | 27.59 | a | 26.85 | a | 41.80 | ||||||||
1994 | 32.06 | 27.13 | a | 37.55 | a | 45.60 | 52.63 | 56.65 | 65.33 | b | 65.16 | 56.27 | ----- | z | ----- | z | 26.32 | n | 48.71 | c | ||||||
1995 | 22.87 | 31.64 | 34.24 | 40.67 | d | 49.57 | b | 56.13 | d | 63.20 | c | 60.43 | b | 54.85 | d | 41.09 | d | 33.16 | a | 25.35 | d | 42.77 | ||||
1996 | 24.28 | d | 24.98 | b | 33.95 | 41.52 | c | 46.48 | a | 57.22 | 64.46 | c | 59.90 | g | 50.04 | e | 42.37 | a | 32.08 | 25.32 | a | 40.25 | a | |||
1997 | 24.78 | a | 28.04 | 33.21 | 37.22 | 50.23 | 57.23 | b | 61.22 | d | 63.08 | a | 55.48 | b | 42.98 | b | 33.27 | b | 24.26 | b | 42.58 | |||||
1998 | 26.55 | a | 30.92 | b | 36.13 | a | 44.30 | 52.68 | 55.48 | a | 69.50 | f | 65.05 | c | 58.83 | c | 41.93 | i | 34.62 | d | 22.34 | f | 44.95 | c | ||
1999 | 29.68 | k | 28.47 | j | 33.97 | l | 39.50 | k | 45.40 | p | 52.82 | b | 61.24 | d | 65.30 | c | 51.14 | e | 43.12 | e | 34.72 | e | 26.17 | a | 47.79 | e |
2000 | 26.07 | a | 30.71 | a | 38.95 | a | 46.30 | c | 50.66 | f | 55.83 | c | 63.52 | e | 62.26 | f | 53.34 | k | 43.42 | e | 27.23 | 23.57 | d | 39.51 | c | |
2001 | 23.38 | c | 27.15 | d | 35.30 | c | 39.48 | f | 50.98 | 55.21 | b | 63.54 | c | 66.00 | i | 57.72 | e | 42.04 | r | 34.91 | a | 23.82 | a | 41.33 | c | |
2002 | 26.45 | 24.91 | a | 29.05 | c | 39.79 | b | 46.90 | 57.90 | a | 66.15 | g | 60.83 | y | 53.17 | i | 38.35 | d | 30.48 | i | 27.26 | h | 37.62 | e | ||
2003 | 29.78 | d | 27.96 | 36.08 | a | 41.79 | f | 49.24 | 58.41 | a | 67.32 | a | 65.31 | e | 54.83 | c | 45.40 | b | 25.45 | j | 25.07 | c | 45.94 | b | ||
2004 | 22.85 | e | 27.30 | d | 38.10 | b | 43.07 | c | 46.35 | 54.57 | a | 62.77 | 61.75 | a | 51.16 | a | 38.58 | a | 29.32 | 25.93 | d | 41.81 | ||||
2005 | 22.62 | f | 27.04 | 37.68 | 41.83 | c | 50.60 | 54.98 | 63.20 | a | 63.09 | b | 52.33 | 44.12 | c | 29.37 | c | 18.26 | d | 43.86 | a | |||||
2006 | 29.87 | 22.19 | a | 33.12 | a | 41.73 | 50.29 | 60.50 | a | 68.34 | b | 61.27 | a | 54.60 | d | 40.40 | g | 31.23 | b | 23.03 | 43.29 | a | ||||
2007 | 19.15 | 30.73 | 36.69 | 42.86 | b | 51.05 | b | 59.13 | 71.52 | 61.95 | c | 51.82 | e | 41.32 | 30.24 | a | 23.08 | 43.30 | ||||||||
2008 | 18.13 | 30.41 | a | 32.07 | d | 36.35 | 47.37 | 54.12 | 63.56 | 62.50 | 52.50 | 41.00 | 34.33 | 22.75 | e | 41.26 | ||||||||||
2009 | 23.81 | 26.75 | h | 32.04 | c | 39.78 | 49.25 | a | 57.14 | b | 64.52 | a | 63.92 | a | 58.23 | 37.85 | 31.88 | 17.68 | 43.28 | a | ||||||
2010 | 28.73 | c | 29.77 | b | 36.60 | a | 41.55 | 45.66 | 55.90 | 62.29 | 62.44 | 54.40 | 44.71 | 29.47 | 24.00 | 42.96 | ||||||||||
2011 | 25.20 | a | 23.55 | 33.85 | 36.81 | a | 46.82 | 53.75 | 62.27 | 65.19 | 57.52 | a | 44.61 | 27.92 | 23.67 | a | 41.76 | |||||||||
2012 | 24.53 | 27.30 | a | 34.58 | 43.40 | 47.82 | 55.58 | 67.52 | 64.16 | 53.83 | 41.15 | 33.33 | a | 27.47 | a | 43.39 | ||||||||||
2013 | 21.95 | 30.40 | b | 33.60 | 39.22 | 50.66 | 54.75 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.17 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.08 | 28.21 | 34.28 | 40.94 | 49.09 | 56.83 | 63.69 | 62.72 | 53.88 | 43.18 | 31.72 | 23.82 | 42.53 | |||||||||||||
S.D. | 3.99 | 3.06 | 3.04 | 2.95 | 2.50 | 2.41 | 2.69 | 2.34 | 3.26 | 2.63 | 2.87 | 3.05 | 1.04 | |||||||||||||
SKEW | -0.48 | -0.15 | -0.20 | -0.05 | -0.01 | 0.45 | 0.29 | -0.24 | 0.05 | 0.29 | -0.77 | -0.71 | 0.16 | |||||||||||||
MAX | 32.06 | 34.80 | 40.87 | 46.80 | 54.76 | 63.02 | 71.52 | 67.61 | 60.18 | 50.18 | 36.42 | 28.73 | 44.51 | |||||||||||||
MIN | 12.39 | 22.19 | 27.27 | 34.85 | 43.06 | 52.82 | 56.19 | 58.08 | 47.22 | 37.85 | 22.75 | 15.39 | 40.74 | |||||||||||||
YRS | 49 | 48 | 49 | 47 | 49 | 50 | 47 | 44 | 49 | 47 | 48 | 47 | 35 |