YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 54.33 | j | 69.09 | h | 72.70 | k | 69.48 | h | 56.71 | i | 44.00 | j | 32.79 | k | 20.78 | d | 20.78 | k |
1962 | 23.03 | a | 33.00 | 33.58 | 49.28 | a | 53.35 | 63.10 | 71.42 | 68.16 | 61.86 | a | 49.42 | 39.37 | 26.59 | b | 47.68 | |||||||||
1963 | 21.27 | i | 35.33 | a | 36.35 | 41.93 | a | 57.87 | 62.31 | a | 73.90 | 69.68 | 62.76 | a | 54.00 | a | 37.54 | b | 22.00 | 50.33 | a | |||||
1964 | 21.32 | 24.74 | b | 32.83 | b | 42.73 | 53.13 | a | 62.71 | b | 73.68 | 70.23 | 61.30 | 51.77 | 34.13 | 30.52 | b | 46.59 | ||||||||
1965 | 30.03 | 30.79 | 35.83 | a | 46.11 | c | 52.32 | 59.53 | 69.61 | c | 68.13 | a | 56.57 | 49.29 | 40.93 | a | 30.84 | 47.50 | ||||||||
1966 | 25.03 | 27.14 | 38.90 | 46.41 | a | 58.48 | 64.89 | b | 71.84 | 72.06 | 63.10 | 49.90 | 39.60 | 29.48 | 48.90 | |||||||||||
1967 | 23.68 | 30.73 | b | 39.06 | 41.00 | 53.32 | 60.41 | a | 72.77 | 71.52 | 63.77 | 50.71 | 38.97 | 20.19 | 47.18 | |||||||||||
1968 | 16.68 | 36.24 | 36.52 | h | 40.61 | b | 53.86 | b | 64.07 | 71.65 | 66.10 | 59.60 | 49.44 | d | 37.23 | 24.00 | 47.22 | a | ||||||||
1969 | 31.87 | 31.96 | e | 35.93 | d | 45.17 | 57.45 | 64.63 | 71.00 | 73.45 | 62.69 | a | 47.48 | 36.38 | a | 29.81 | 48.98 | |||||||||
1970 | 27.42 | 35.57 | 38.19 | 40.55 | a | 56.19 | 65.47 | 72.24 | b | 73.06 | 58.80 | 46.45 | 37.50 | 28.68 | 48.34 | |||||||||||
1971 | 24.58 | 30.68 | 36.35 | 44.80 | 51.74 | 60.67 | 71.29 | 71.97 | 60.03 | 45.48 | 35.13 | 25.32 | 46.50 | |||||||||||||
1972 | 26.48 | 32.24 | 44.06 | 45.67 | 57.13 | a | 66.39 | b | 73.65 | 70.33 | a | 61.43 | 51.35 | 36.43 | 27.19 | 49.36 | ||||||||||
1973 | 24.03 | 33.29 | 38.87 | 44.10 | 56.77 | 66.34 | a | 70.97 | 69.48 | 58.66 | a | 48.16 | 37.83 | a | 30.30 | a | 48.23 | |||||||||
1974 | 26.90 | 27.46 | 43.10 | 42.20 | 55.90 | a | 68.97 | 70.00 | a | 68.97 | 61.73 | d | 51.26 | 37.97 | 28.16 | 48.55 | ||||||||||
1975 | 24.26 | 31.39 | 36.19 | 36.43 | b | 51.29 | 62.20 | 71.73 | a | 68.13 | a | 61.45 | a | 47.65 | 34.57 | 29.00 | 46.19 | |||||||||
1976 | 25.68 | 37.57 | a | 35.81 | 43.50 | 56.77 | a | 65.55 | a | 69.26 | 68.32 | 61.90 | 48.87 | 36.77 | 24.35 | 47.86 | ||||||||||
1977 | 26.16 | 31.36 | 32.77 | 48.41 | a | 52.23 | a | 65.27 | 70.57 | a | 70.58 | 62.80 | 50.26 | 38.17 | 34.53 | a | 48.59 | |||||||||
1978 | 33.10 | a | 35.64 | 43.19 | 47.10 | 51.74 | 65.57 | 68.42 | 68.93 | a | 59.03 | 53.23 | 39.34 | a | 23.17 | a | 49.04 | |||||||||
1979 | 25.00 | c | 27.61 | 38.27 | a | 45.07 | ----- | z | 58.43 | 71.55 | b | 65.94 | 61.60 | 51.13 | 33.33 | 27.71 | 45.97 | a | ||||||||
1980 | 32.19 | 34.62 | 34.10 | 36.50 | v | 50.62 | j | ----- | z | 65.83 | a | 64.19 | 54.92 | d | 42.38 | j | ----- | z | 32.20 | f | 47.64 | f | ||||
1981 | 32.17 | a | 34.11 | 39.32 | 49.43 | 54.50 | c | 65.38 | a | 70.71 | 68.30 | a | 62.37 | 48.43 | a | 39.00 | 32.35 | 49.67 | ||||||||
1982 | 27.39 | 31.32 | 38.81 | 44.47 | 53.16 | 61.57 | 69.83 | a | 69.71 | c | 62.21 | a | 44.42 | 37.30 | ----- | z | 49.11 | a | ||||||||
1983 | 29.20 | a | 34.30 | a | 41.67 | a | 40.38 | f | 50.52 | 62.96 | c | 68.59 | b | 69.28 | b | 62.85 | c | 52.15 | d | 40.00 | b | 34.13 | 49.60 | a | ||
1984 | 25.67 | d | 29.34 | 38.00 | j | 41.76 | a | 55.37 | d | 60.88 | d | 69.27 | i | 68.17 | h | 63.91 | g | 44.70 | d | 36.58 | f | 31.22 | h | 42.95 | f | |
1985 | 29.15 | d | 28.72 | c | 38.77 | a | 48.69 | a | 57.21 | b | 66.60 | 72.58 | 68.97 | a | 57.50 | b | 50.30 | a | 37.60 | 29.87 | a | 48.83 | ||||
1986 | 31.27 | a | 37.07 | a | 42.88 | e | 47.96 | b | 54.10 | j | 66.29 | i | 70.21 | q | 70.30 | h | 57.16 | e | 47.31 | b | 39.85 | c | 29.79 | c | 41.66 | d |
1987 | 25.26 | 33.43 | 35.87 | 47.37 | 55.13 | 65.73 | 66.84 | 66.13 | 58.77 | 50.90 | 35.03 | 28.26 | 47.39 | |||||||||||||
1988 | 26.33 | a | 28.32 | a | 33.58 | 40.93 | 49.42 | 59.00 | 66.48 | b | 63.16 | f | 51.36 | b | 51.30 | a | 35.97 | 24.83 | a | 42.50 | a | |||||
1989 | 10.19 | 26.71 | d | 32.71 | c | 46.83 | 54.77 | 63.70 | 70.45 | b | 66.77 | 58.70 | 46.26 | 35.70 | c | 23.10 | a | 44.66 | ||||||||
1990 | 24.68 | 28.00 | 39.28 | b | 49.21 | a | 55.39 | 65.14 | a | 70.61 | 68.28 | b | 65.65 | d | 49.03 | 36.27 | 20.32 | 47.65 | ||||||||
1991 | 26.00 | a | 32.11 | 36.65 | 42.43 | 51.77 | 62.73 | 71.61 | c | 71.00 | b | 62.04 | d | 52.03 | a | 34.21 | f | 29.16 | f | 50.84 | b | |||||
1992 | 24.17 | a | 34.48 | 40.11 | c | 50.33 | c | 57.39 | 62.36 | h | 67.96 | f | 68.90 | a | 60.41 | c | 49.50 | e | 33.89 | b | 24.30 | d | 44.35 | b | ||
1993 | 30.58 | g | 32.43 | u | 39.84 | 45.97 | 54.23 | 60.90 | 68.42 | 67.19 | 58.60 | 48.03 | 33.17 | 25.48 | 50.18 | b | ||||||||||
1994 | 24.74 | 28.89 | 39.48 | 43.63 | 54.35 | 67.30 | 71.97 | 71.33 | a | 62.13 | 45.58 | 32.23 | 29.26 | 47.58 | ||||||||||||
1995 | 30.90 | 35.07 | 40.13 | 42.47 | 51.03 | b | 58.77 | 68.23 | a | 70.13 | 61.37 | 46.68 | 38.63 | 31.10 | 47.88 | |||||||||||
1996 | 27.61 | 33.59 | 37.70 | a | 45.33 | 56.90 | 65.69 | a | 73.61 | 69.13 | a | 58.77 | 47.14 | c | 36.37 | 29.06 | 48.41 | |||||||||
1997 | 29.77 | 29.61 | 36.61 | 42.77 | 57.39 | 62.50 | 67.62 | g | 68.62 | g | 61.92 | d | 45.84 | 36.87 | 26.41 | b | 42.97 | b | ||||||||
1998 | 28.42 | 30.61 | 36.87 | a | 40.87 | 51.90 | 58.83 | a | 71.45 | 68.61 | 59.72 | a | 45.96 | c | 34.79 | a | 25.84 | 46.16 | ||||||||
1999 | 28.86 | c | 30.74 | a | 38.50 | e | 39.14 | a | 50.48 | b | 60.09 | g | 69.48 | b | 65.00 | j | 57.32 | b | 47.29 | 35.29 | f | 24.75 | c | 42.95 | c | |
2000 | 29.52 | d | 32.00 | a | 35.48 | d | 46.11 | c | 56.91 | h | 66.38 | d | 70.60 | f | 69.32 | f | 58.17 | g | 48.73 | e | 30.25 | f | 27.80 | f | 43.04 | f |
2001 | 24.72 | f | 27.76 | c | 38.40 | f | 41.37 | k | 54.22 | h | 61.54 | f | 69.70 | d | 66.48 | f | 59.79 | f | 48.62 | g | 37.63 | c | 25.87 | a | 40.24 | h |
2002 | 26.00 | d | 27.17 | d | 33.00 | a | 49.74 | c | 56.07 | a | 67.90 | 76.54 | c | 72.58 | 62.43 | 47.10 | 36.92 | e | 30.00 | 48.79 | ||||||
2003 | 32.24 | b | 33.93 | a | 40.45 | b | 43.20 | 58.63 | a | 68.17 | g | 76.19 | 72.35 | e | 62.23 | 53.93 | a | 37.18 | b | 29.32 | c | 49.06 | a | |||
2004 | 26.14 | b | 29.26 | b | 46.10 | j | 49.00 | b | 57.44 | d | 66.67 | c | 71.85 | e | 68.55 | b | 59.82 | b | 49.93 | a | 37.50 | b | 28.97 | 49.56 | a | |
2005 | 34.03 | a | 36.00 | b | 39.65 | 42.96 | d | 54.32 | 61.96 | b | 74.17 | a | 68.30 | a | 61.57 | b | 50.04 | e | 38.00 | b | 26.41 | b | 48.95 | |||
2006 | 27.70 | a | 30.14 | g | 36.77 | 46.63 | c | 60.48 | 68.75 | b | 74.81 | 70.90 | 59.07 | a | 48.39 | 37.73 | 28.13 | a | 50.85 | a | ||||||
2007 | 23.40 | a | 32.67 | a | 40.59 | b | 47.35 | g | 56.40 | a | 67.57 | 75.63 | a | 72.03 | a | 63.50 | b | 47.67 | a | 38.00 | 27.86 | b | 49.57 | a | ||
2008 | 25.39 | 32.36 | a | 38.00 | b | 41.04 | g | 52.93 | c | 65.23 | 73.39 | 71.00 | 62.48 | c | 47.07 | a | 39.07 | c | 29.44 | d | 48.76 | a | ||||
2009 | 28.97 | b | 31.44 | a | 36.07 | a | 44.19 | c | 60.30 | a | 62.30 | 73.27 | a | 68.81 | d | 63.53 | 44.73 | a | ----- | z | 25.30 | d | 48.99 | a | ||
2010 | 28.45 | 32.15 | a | 36.18 | c | ----- | z | 48.71 | 65.82 | b | 75.26 | 70.50 | a | 61.38 | a | 49.93 | b | 34.13 | ----- | z | 50.25 | b | ||||
2011 | 22.07 | q | 23.64 | q | 36.07 | p | ----- | z | ----- | z | ----- | z | 70.97 | a | ----- | z | ----- | z | 48.94 | 35.73 | ----- | z | 51.88 | i | ||
2012 | 28.57 | a | 34.28 | 35.23 | i | ----- | z | 58.81 | 68.40 | 73.13 | 72.06 | 67.75 | r | 51.23 | 37.13 | ----- | z | 52.95 | d | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.80 | 31.72 | 37.74 | 44.71 | 54.77 | 63.98 | 71.46 | 69.54 | 60.63 | 48.91 | 36.95 | 27.34 | 47.90 | |||||||||||||
S.D. | 4.15 | 3.06 | 2.90 | 3.22 | 2.89 | 2.89 | 2.46 | 2.07 | 2.60 | 2.41 | 1.99 | 3.38 | 1.17 | |||||||||||||
SKEW | -1.37 | -0.15 | 0.14 | -0.19 | -0.08 | -0.26 | -0.10 | -0.24 | -1.16 | 0.11 | -0.36 | -0.22 | -0.87 | |||||||||||||
MAX | 34.03 | 37.57 | 44.06 | 50.33 | 60.48 | 68.97 | 76.54 | 73.45 | 65.65 | 54.00 | 40.93 | 34.53 | 49.67 | |||||||||||||
MIN | 10.19 | 24.74 | 32.71 | 36.43 | 48.71 | 58.43 | 65.83 | 64.19 | 51.36 | 44.42 | 32.23 | 20.19 | 44.66 | |||||||||||||
YRS | 47 | 48 | 45 | 43 | 45 | 44 | 46 | 43 | 46 | 49 | 45 | 44 | 26 |