YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.53 | m | 66.79 | 61.48 | 54.40 | 48.91 | d | 35.73 | 32.42 | 49.96 | f | |||||
1960 | 25.52 | 32.64 | 37.08 | 44.72 | 48.69 | 58.93 | 68.57 | a | 61.20 | a | 58.03 | 49.23 | 36.85 | 29.13 | a | 45.88 | ||||||||||
1961 | 32.37 | 37.98 | 39.05 | 44.02 | 50.16 | 61.48 | 65.16 | 68.18 | 52.30 | 44.37 | 32.93 | 31.82 | 46.65 | |||||||||||||
1962 | 29.98 | a | 33.04 | 35.44 | 46.53 | 46.45 | a | 56.32 | 62.55 | a | 61.13 | 56.97 | 46.42 | 39.00 | a | 34.77 | 45.72 | |||||||||
1963 | 25.94 | 38.73 | 37.79 | 41.67 | 51.34 | 56.53 | 59.32 | 63.44 | 61.62 | 48.39 | 38.27 | 28.92 | 46.00 | |||||||||||||
1964 | 32.73 | a | 35.47 | 36.26 | 41.71 | a | 48.47 | 55.30 | 62.37 | 59.03 | 54.15 | 46.11 | 34.00 | 28.85 | a | 44.54 | ||||||||||
1965 | 30.84 | 36.27 | 37.71 | 46.22 | 49.58 | 57.53 | 64.98 | 63.44 | 53.43 | 50.53 | 39.55 | 31.03 | 46.76 | |||||||||||||
1966 | 30.66 | 32.75 | 37.32 | 45.70 | 53.18 | a | 55.58 | 62.11 | 62.85 | 58.88 | 47.24 | 38.27 | 34.27 | 46.57 | ||||||||||||
1967 | 34.94 | 37.38 | 35.95 | 39.78 | 51.55 | 61.68 | 65.60 | 70.15 | 62.64 | a | 47.23 | 37.23 | 31.45 | 47.96 | ||||||||||||
1968 | 29.87 | 36.70 | a | 41.31 | 43.07 | 51.97 | 58.25 | 66.23 | 60.97 | 56.65 | 43.87 | 36.55 | a | 27.05 | 46.04 | |||||||||||
1969 | 20.15 | 28.83 | a | 37.50 | 43.32 | 55.71 | 62.62 | 62.58 | 61.44 | 57.38 | 43.98 | 38.40 | 30.61 | 45.21 | ||||||||||||
1970 | 28.92 | 35.66 | 38.50 | 40.08 | 51.03 | 62.03 | 66.06 | 65.06 | 52.42 | 44.18 | 35.90 | 28.84 | 45.72 | |||||||||||||
1971 | 31.95 | 34.77 | 33.08 | 42.02 | 52.81 | 53.77 | 66.71 | 67.73 | 52.72 | 45.27 | 36.70 | 31.50 | 45.75 | |||||||||||||
1972 | 28.77 | 33.50 | a | 40.94 | 39.70 | 54.00 | a | 58.80 | 65.23 | 66.35 | 53.00 | 45.27 | 38.33 | 26.12 | a | 45.83 | ||||||||||
1973 | 26.52 | 34.45 | 38.84 | 44.98 | 52.52 | 58.07 | b | 65.68 | 61.68 | 56.92 | 46.47 | 33.27 | 35.02 | 46.20 | ||||||||||||
1974 | 23.76 | 35.39 | a | 37.48 | a | 43.17 | 47.34 | 60.16 | a | 61.97 | 65.11 | 60.33 | 47.56 | 38.76 | a | 34.45 | 46.29 | |||||||||
1975 | 31.97 | 30.70 | 35.40 | a | 39.67 | 49.85 | 55.75 | 66.56 | 60.23 | 58.34 | a | 45.66 | 35.47 | 34.21 | 45.32 | |||||||||||
1976 | 33.65 | 31.79 | 34.16 | 42.93 | 50.76 | 54.35 | 62.40 | 61.13 | 60.13 | 47.68 | 38.87 | 33.42 | 45.94 | |||||||||||||
1977 | 26.16 | 35.84 | 37.85 | 47.60 | 46.65 | 60.10 | a | 61.15 | 68.58 | 53.47 | 45.55 | b | 34.12 | a | 32.00 | a | 45.76 | |||||||||
1978 | 30.11 | 34.46 | 41.79 | 43.33 | 48.74 | 58.93 | 63.79 | 62.60 | 53.77 | 48.00 | 31.62 | 27.68 | a | 45.40 | ||||||||||||
1979 | 16.87 | 32.57 | 40.79 | 43.97 | 52.84 | 58.45 | a | 64.15 | a | 63.08 | k | 58.92 | 49.79 | 33.58 | 34.66 | 44.24 | a | |||||||||
1980 | 21.84 | 32.19 | 37.08 | 45.48 | g | 50.66 | 53.37 | 62.74 | 60.13 | 56.77 | 47.32 | 38.03 | a | 36.50 | b | 45.15 | a | |||||||||
1981 | 32.82 | 33.96 | 40.53 | 43.40 | 50.16 | 54.10 | 61.08 | a | 67.03 | 57.79 | a | 44.87 | 38.47 | 31.08 | 46.28 | |||||||||||
1982 | 29.33 | b | 30.04 | b | 38.03 | 39.77 | 49.90 | b | 60.20 | 63.48 | a | 63.27 | 55.98 | 44.63 | a | 32.20 | c | 29.85 | 44.72 | |||||||
1983 | 34.89 | 36.22 | a | 41.29 | 43.22 | 53.23 | 55.16 | a | 59.88 | b | 64.60 | a | 52.59 | b | 46.71 | 38.42 | 21.35 | e | 45.63 | |||||||
1984 | 31.96 | d | 34.30 | b | 40.47 | b | 41.27 | d | 46.69 | 54.43 | a | 63.66 | 64.19 | 54.03 | 42.94 | 34.95 | 26.35 | 44.60 | ||||||||
1985 | 23.23 | a | 29.06 | b | 36.63 | 45.45 | 52.39 | 57.82 | 69.56 | 61.58 | 50.83 | 45.25 | a | 25.90 | a | 19.73 | 43.12 | |||||||||
1986 | 31.55 | b | 32.86 | c | 43.00 | 42.69 | a | 51.69 | b | 62.42 | 59.84 | 67.98 | 52.70 | 49.34 | 38.19 | d | 28.06 | 46.69 | ||||||||
1987 | 27.75 | a | 35.17 | b | 39.40 | a | 47.98 | 53.84 | 60.62 | 62.05 | 62.97 | 60.07 | 50.69 | 39.29 | a | 27.98 | 47.32 | |||||||||
1988 | 28.32 | a | 35.26 | b | 38.94 | 46.37 | c | 49.60 | 56.34 | a | 64.27 | 62.74 | 57.45 | a | 54.30 | c | 38.50 | b | 32.45 | b | 47.04 | |||||
1989 | 33.59 | d | 24.26 | c | 36.97 | b | 47.93 | 50.65 | 60.11 | b | 61.73 | ----- | z | 58.78 | 47.45 | a | 39.28 | e | 32.68 | a | 44.86 | a | ||||
1990 | 33.84 | 31.65 | a | 40.92 | 48.43 | 49.74 | 57.73 | 67.15 | 65.84 | 63.67 | c | 44.21 | c | 38.63 | c | 23.00 | c | 47.07 | ||||||||
1991 | 30.40 | a | 39.86 | 36.39 | 43.26 | a | 49.02 | 54.52 | 65.17 | a | 66.98 | b | 60.88 | b | 47.48 | a | 37.59 | b | 32.79 | b | 47.03 | |||||
1992 | 34.48 | d | 37.95 | 43.57 | a | 46.90 | 55.15 | 63.65 | 64.53 | b | 66.66 | 55.67 | a | ----- | z | 36.34 | b | 28.32 | 48.47 | a | ||||||
1993 | 21.72 | d | 27.14 | 38.25 | a | 43.52 | 56.13 | a | 55.93 | 57.43 | b | 62.35 | 59.84 | a | 50.42 | a | 31.17 | a | 30.67 | a | 44.55 | |||||
1994 | 38.07 | a | 30.68 | 41.65 | 47.75 | 54.47 | ----- | z | 68.90 | 64.47 | 62.73 | 45.97 | a | 32.87 | ----- | z | 48.75 | b | ||||||||
1995 | 29.83 | b | 40.14 | c | 38.81 | 43.02 | a | 53.45 | ----- | z | 63.50 | 60.95 | 60.95 | 45.52 | 41.81 | c | 30.68 | c | 46.24 | a | ||||||
1996 | 33.18 | a | 28.97 | 39.50 | 46.12 | 48.02 | 57.12 | a | 69.08 | 66.57 | c | 54.60 | d | 46.52 | d | 36.08 | f | 31.79 | s | 48.97 | b | |||||
1997 | 29.15 | d | 33.00 | 37.58 | 43.23 | 54.63 | 56.85 | 63.63 | 66.98 | 58.23 | 45.65 | 38.92 | 31.22 | a | 46.59 | |||||||||||
1998 | 31.90 | b | 35.69 | a | 39.55 | 43.73 | 50.77 | 58.18 | 70.68 | c | ----- | z | ----- | z | 45.66 | b | 40.02 | c | 31.72 | o | 46.24 | c | ||||
1999 | 36.27 | i | 33.41 | 37.33 | a | 42.19 | c | 47.87 | d | 54.62 | b | 64.28 | d | 67.08 | f | 58.40 | a | 48.73 | i | 40.29 | a | 33.26 | d | 45.74 | c | |
2000 | 29.97 | b | 34.31 | b | 38.60 | a | 47.56 | d | 50.50 | g | 59.91 | c | 63.38 | c | 63.94 | g | 57.48 | a | 46.20 | d | 32.25 | ----- | z | 45.52 | c | |
2001 | 29.98 | 31.73 | b | 40.31 | 41.48 | d | 51.05 | i | 55.76 | g | 63.84 | c | 66.59 | d | 61.06 | f | 47.25 | c | 39.02 | a | 30.62 | b | 43.42 | c | ||
2002 | 31.92 | 35.27 | d | 35.77 | c | 44.21 | d | 49.91 | d | 60.41 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.17 | y | 42.91 | f | |
2003 | 34.30 | c | 35.25 | d | 40.83 | b | 43.59 | b | 50.19 | d | 59.94 | d | 68.39 | i | 64.93 | h | 61.02 | d | 51.34 | c | 34.09 | c | 30.17 | a | 44.07 | b |
2004 | 28.12 | b | 34.15 | b | 41.81 | e | 47.14 | b | 51.39 | c | 57.92 | j | 66.50 | h | 68.48 | f | 56.81 | a | 49.62 | e | 35.55 | t | 35.81 | w | 44.15 | e |
2005 | 33.93 | i | 36.64 | ----- | z | 46.72 | n | 55.02 | h | 56.17 | 66.67 | a | 67.02 | 57.28 | 49.55 | 35.27 | b | 28.72 | b | 49.66 | d | |||||
2006 | 35.94 | e | 30.50 | i | 36.58 | a | 42.68 | b | 51.19 | 55.95 | 60.79 | q | 56.81 | d | 58.71 | b | 45.17 | j | ----- | z | ----- | z | 48.27 | e | ||
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.82 | b | 28.81 | d | 33.32 | j |
2010 | 34.23 | a | 37.02 | b | 39.45 | a | 41.20 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.90 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.87 | 33.94 | 38.58 | 43.93 | 51.01 | 57.91 | 64.24 | 63.94 | 57.11 | 47.06 | 36.50 | 30.30 | 45.94 | |||||||||||||
S.D. | 4.39 | 3.21 | 2.30 | 2.47 | 2.46 | 2.71 | 2.84 | 3.02 | 3.23 | 2.36 | 3.08 | 3.56 | 0.99 | |||||||||||||
SKEW | -0.88 | -0.60 | -0.00 | 0.10 | 0.12 | 0.21 | 0.08 | -0.03 | 0.00 | 0.74 | -1.08 | -0.93 | -0.57 | |||||||||||||
MAX | 38.07 | 40.14 | 43.57 | 48.43 | 56.13 | 63.65 | 70.68 | 70.15 | 63.67 | 54.30 | 41.81 | 36.50 | 47.96 | |||||||||||||
MIN | 16.87 | 24.26 | 33.08 | 39.67 | 46.45 | 53.37 | 57.43 | 56.81 | 50.83 | 42.94 | 25.90 | 19.73 | 43.12 | |||||||||||||
YRS | 46 | 47 | 47 | 45 | 44 | 43 | 44 | 40 | 45 | 44 | 45 | 42 | 31 |