YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | 60.18 | 72.14 | a | 79.85 | 80.82 | 72.05 | 56.32 | a | 48.10 | 37.68 | 63.39 | d | ||||||
1972 | 38.97 | b | 46.56 | c | 57.71 | 59.25 | 69.62 | s | ----- | z | ----- | z | ----- | z | ----- | z | 52.68 | l | 46.40 | a | 38.03 | 47.82 | f | |||
1973 | 38.58 | 44.29 | 45.44 | 54.48 | 65.66 | 74.07 | 77.11 | 75.52 | 66.67 | 57.31 | 47.80 | 44.15 | 57.59 | |||||||||||||
1974 | 39.31 | 44.46 | 50.82 | 52.50 | 62.40 | 73.20 | 75.94 | 74.06 | 72.47 | 59.60 | 48.05 | 40.60 | 57.78 | |||||||||||||
1975 | 41.82 | 43.59 | 46.97 | 47.72 | 61.69 | 71.18 | 76.77 | 73.00 | 71.20 | 57.71 | 47.68 | 43.73 | 56.92 | |||||||||||||
1976 | 41.95 | 47.27 | a | 48.11 | c | 51.50 | 62.97 | 69.57 | 76.18 | 69.68 | a | 68.83 | 58.79 | 52.20 | 41.61 | 57.39 | ||||||||||
1977 | 41.89 | 47.84 | 44.06 | 57.03 | 56.47 | 71.97 | 75.21 | 76.63 | 68.03 | 61.95 | 51.23 | 49.10 | 58.45 | |||||||||||||
1978 | 43.98 | 47.38 | 52.77 | 52.45 | 61.35 | 71.32 | 75.26 | 74.84 | 66.53 | 64.60 | 46.48 | 38.27 | 57.94 | |||||||||||||
1979 | 39.32 | 42.54 | 49.39 | 55.22 | 63.00 | 71.42 | 75.60 | 73.27 | 73.88 | 60.74 | 46.95 | 44.39 | 57.98 | |||||||||||||
1980 | 47.60 | a | 49.27 | a | 48.15 | 54.55 | 58.11 | 66.32 | 78.13 | e | 74.10 | 69.10 | 60.81 | 50.85 | 47.13 | 58.68 | ||||||||||
1981 | 47.05 | a | 47.54 | 49.34 | 58.38 | 65.77 | 76.60 | 77.34 | 78.58 | 71.98 | 57.23 | 51.75 | 46.94 | 60.71 | ||||||||||||
1982 | 41.00 | a | 47.78 | a | 48.24 | 54.55 | 64.12 | a | 69.80 | 75.84 | 76.42 | 69.93 | a | 57.95 | 46.05 | 41.78 | b | 57.79 | ||||||||
1983 | 43.80 | a | 46.86 | 49.65 | 49.77 | 63.23 | 70.60 | 73.90 | 75.76 | 74.52 | 60.68 | 50.02 | 45.63 | a | 58.70 | |||||||||||
1984 | 43.57 | a | 45.98 | 53.18 | 55.57 | 71.00 | 73.83 | 81.18 | 79.55 | 74.42 | 56.68 | 47.50 | 38.48 | c | 60.08 | |||||||||||
1985 | 41.23 | 45.15 | b | 47.57 | a | 60.85 | 64.18 | 76.43 | 82.13 | 75.94 | 65.62 | a | 60.11 | 47.91 | a | 43.40 | 59.21 | |||||||||
1986 | 46.98 | b | 49.69 | a | 54.37 | 56.47 | 67.02 | 76.05 | 75.97 | 81.77 | 64.90 | 58.77 | 51.23 | 41.58 | 60.40 | |||||||||||
1987 | 40.18 | 46.07 | 47.85 | a | 61.33 | 65.15 | 75.55 | 74.61 | 77.98 | 71.79 | a | 64.87 | a | 47.71 | b | 38.23 | c | 59.28 | ||||||||
1988 | 41.31 | b | 46.98 | 51.37 | 56.74 | a | 63.61 | 71.75 | 81.71 | 77.27 | 71.22 | 66.13 | 50.78 | 41.55 | 60.04 | |||||||||||
1989 | 39.56 | 43.89 | 55.31 | 63.48 | 65.19 | 73.42 | 81.58 | 75.19 | 70.90 | 59.16 | 51.15 | 43.55 | 60.20 | |||||||||||||
1990 | 42.68 | 43.04 | a | 53.52 | 60.45 | a | 63.79 | 74.90 | 81.47 | 76.95 | 72.22 | 62.97 | 48.95 | 36.23 | 59.76 | |||||||||||
1991 | 41.52 | 51.46 | 46.00 | 54.82 | 61.05 | a | 70.82 | 79.13 | a | 77.08 | a | 74.68 | 65.76 | 50.85 | 42.52 | b | 59.64 | |||||||||
1992 | 41.17 | a | 48.34 | a | 50.39 | 60.90 | 69.11 | 71.67 | 77.03 | 79.56 | 72.68 | 62.48 | 47.95 | 38.95 | b | 60.02 | ||||||||||
1993 | 41.65 | a | 45.28 | a | 54.32 | 58.68 | 65.66 | 71.77 | 75.18 | 76.60 | 70.45 | 60.87 | 47.53 | 41.17 | b | 59.10 | ||||||||||
1994 | 44.53 | 43.09 | 53.90 | 59.55 | 64.56 | 77.33 | 81.97 | 80.84 | 71.73 | 58.47 | 42.67 | 42.26 | 60.08 | |||||||||||||
1995 | 44.24 | 51.59 | 49.90 | 55.25 | 61.52 | 70.43 | 78.94 | 79.87 | 74.65 | 62.87 | 56.12 | a | 45.69 | b | 60.92 | |||||||||||
1996 | 47.15 | 49.91 | b | 52.12 | a | 60.08 | 68.55 | 75.76 | a | 83.39 | 80.97 | 70.26 | a | ----- | z | ----- | z | ----- | z | 65.35 | c | |||||
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.62 | a | 78.90 | 73.95 | 60.48 | 52.57 | 41.55 | 64.18 | f | |||||
1998 | 46.65 | 44.48 | 49.62 | a | 50.61 | c | 56.24 | 66.37 | c | 78.78 | b | 80.89 | 68.11 | c | 58.13 | 49.90 | 41.53 | 57.61 | ||||||||
1999 | 46.81 | 46.52 | a | 48.63 | 52.05 | 63.87 | 72.00 | 76.69 | b | 75.66 | 72.35 | 64.90 | 52.68 | 43.82 | 59.67 | |||||||||||
2000 | 47.45 | 47.17 | 51.76 | 60.85 | 68.77 | 76.47 | 78.50 | b | 79.33 | a | 71.02 | 60.70 | a | 45.82 | 46.18 | 61.17 | ||||||||||
2001 | 41.78 | a | 43.31 | a | 53.43 | b | 53.42 | 72.69 | 75.97 | a | 76.82 | 80.47 | 73.84 | a | 65.95 | 52.82 | 42.27 | a | 61.06 | |||||||
2002 | 42.39 | 47.70 | 49.42 | 58.97 | 66.26 | 76.65 | 82.63 | 79.69 | 74.33 | a | 61.53 | a | 53.22 | 43.93 | a | 61.39 | ||||||||||
2003 | 50.07 | a | 46.07 | 53.10 | 51.73 | 65.34 | 75.58 | 83.70 | a | 79.71 | 76.70 | 68.66 | 46.43 | 43.02 | 61.68 | |||||||||||
2004 | 42.95 | 43.43 | 58.37 | 59.10 | 66.42 | 74.93 | 79.13 | 77.70 | a | 71.48 | 59.32 | 47.37 | 42.90 | 60.26 | ||||||||||||
2005 | 43.89 | 45.34 | 50.18 | 52.93 | 60.86 | j | 68.86 | a | 82.27 | 77.50 | h | 66.29 | b | 60.57 | a | 52.48 | 45.68 | 56.85 | b | |||||||
2006 | 43.03 | 46.65 | d | 45.35 | 53.05 | 68.66 | 77.55 | a | 83.87 | 76.44 | 72.00 | 59.33 | a | 52.82 | b | 42.34 | b | 60.09 | ||||||||
2007 | 40.58 | 47.75 | 56.32 | 60.35 | 66.93 | d | 75.52 | 82.11 | 81.35 | 69.32 | 60.35 | 54.75 | 41.48 | c | 61.40 | |||||||||||
2008 | 40.87 | 46.57 | 51.76 | 57.12 | 63.48 | 76.28 | 81.68 | 81.26 | 75.08 | 63.34 | i | 54.57 | a | ----- | z | 62.87 | b | |||||||||
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.87 | 82.73 | 78.60 | 75.62 | 58.23 | a | 51.57 | 41.47 | a | 65.30 | e | |||||
2010 | 43.92 | a | 46.91 | 49.68 | 53.04 | c | 60.40 | a | 74.69 | a | 82.94 | e | 78.22 | a | 73.02 | e | ----- | z | ----- | z | ----- | z | 62.53 | c | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.01 | 46.43 | 50.76 | 56.08 | 64.29 | 73.10 | 79.00 | 77.64 | 71.38 | 60.86 | 49.76 | 42.40 | 59.47 | |||||||||||||
S.D. | 2.85 | 2.27 | 3.42 | 3.82 | 3.65 | 3.01 | 3.01 | 2.78 | 2.93 | 3.02 | 2.98 | 2.90 | 1.34 | |||||||||||||
SKEW | 0.57 | 0.30 | 0.24 | -0.09 | -0.09 | -0.43 | 0.08 | -0.60 | -0.46 | 0.71 | 0.01 | 0.00 | -0.21 | |||||||||||||
MAX | 50.07 | 51.59 | 58.37 | 63.48 | 72.69 | 77.55 | 83.87 | 81.77 | 76.70 | 68.66 | 56.12 | 49.10 | 61.68 | |||||||||||||
MIN | 38.58 | 42.54 | 44.06 | 47.72 | 56.24 | 66.32 | 73.90 | 69.68 | 64.90 | 56.32 | 42.67 | 36.23 | 56.92 | |||||||||||||
YRS | 37 | 37 | 37 | 37 | 36 | 38 | 39 | 38 | 39 | 36 | 38 | 37 | 32 |