YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | 39.62 | l | 49.94 | 59.87 | 69.97 | 74.60 | 82.74 | 84.19 | 73.30 | 54.77 | 48.03 | 38.23 | 63.56 | b | ||||||||||
1970 | 36.39 | 46.82 | 47.97 | 50.87 | 67.16 | 77.00 | 84.71 | 87.68 | 66.20 | 57.48 | 46.07 | 33.97 | 58.53 | |||||||||||||
1971 | 38.77 | 43.18 | 44.52 | 56.43 | 67.39 | 69.97 | 82.94 | 90.61 | 68.20 | 57.35 | 43.87 | 35.29 | 58.21 | |||||||||||||
1972 | 34.65 | 40.07 | 53.55 | 52.60 | 68.90 | 74.27 | 81.68 | 84.61 | 66.97 | a | 59.97 | a | 44.93 | 30.52 | 57.73 | |||||||||||
1973 | 35.00 | 42.71 | 48.97 | 57.17 | 69.81 | 76.33 | 86.90 | 84.42 | 72.57 | 58.52 | 41.00 | 39.45 | 59.40 | |||||||||||||
1974 | 31.10 | 42.71 | 47.81 | 56.43 | 61.19 | 81.41 | a | 82.45 | 82.70 | a | 78.33 | 65.13 | 48.10 | 38.03 | 59.62 | |||||||||||
1975 | 35.90 | 39.57 | 44.87 | 48.50 | 62.87 | 67.57 | 85.00 | 76.58 | 79.30 | 58.19 | 44.13 | 39.23 | 56.81 | |||||||||||||
1976 | 37.45 | 39.79 | 42.65 | 55.53 | 69.03 | 69.57 | 83.48 | 75.26 | 78.23 | 65.20 | a | 51.77 | 41.52 | 59.12 | ||||||||||||
1977 | 37.84 | 51.75 | 45.87 | a | 67.60 | 61.77 | a | 80.60 | 82.54 | c | 88.93 | d | 71.17 | 61.93 | a | 45.56 | e | 38.94 | 61.21 | |||||||
1978 | 39.10 | 45.50 | 58.52 | 57.83 | 62.47 | a | 76.63 | 83.06 | 80.73 | a | 72.24 | a | 68.33 | a | 43.73 | d | 32.34 | b | 60.04 | |||||||
1979 | 27.48 | 41.96 | 53.71 | 57.80 | 68.30 | a | 77.34 | a | 87.20 | a | 85.40 | a | 81.62 | a | 64.97 | 43.48 | e | 41.29 | 60.88 | |||||||
1980 | 36.20 | a | 45.24 | 47.55 | 63.87 | 66.81 | e | 70.10 | 82.33 | a | 78.81 | 76.17 | a | 64.66 | b | 48.40 | e | 43.61 | 60.31 | |||||||
1981 | 42.06 | 46.46 | 55.06 | 59.90 | 62.23 | e | 70.72 | a | 82.94 | 91.13 | a | 78.00 | 60.10 | 52.08 | f | 41.13 | 62.70 | a | ||||||||
1982 | 36.55 | 40.86 | g | 50.13 | 56.40 | 63.41 | d | 77.18 | b | 80.68 | 84.71 | 72.47 | 60.28 | b | 43.68 | h | 37.17 | a | 61.90 | b | ||||||
1983 | 41.61 | 48.00 | 54.10 | a | 58.87 | 70.48 | 74.32 | b | 79.00 | 85.48 | 72.14 | a | 64.20 | a | 49.23 | d | 31.97 | b | 60.78 | |||||||
1984 | 35.81 | 43.04 | b | 51.23 | 54.60 | 64.33 | a | 72.07 | a | 86.87 | 86.32 | 70.07 | a | 55.16 | 45.16 | e | 32.74 | 58.12 | ||||||||
1985 | 29.90 | 37.32 | 48.16 | 63.83 | 69.33 | a | 77.03 | a | 91.06 | 79.70 | a | 66.24 | a | 59.90 | 33.70 | 31.77 | 57.33 | |||||||||
1986 | 40.81 | 44.32 | 58.06 | 60.53 | 69.84 | 82.87 | 79.32 | 88.27 | a | 66.53 | 66.19 | 45.69 | d | 35.87 | 61.53 | |||||||||||
1987 | 36.03 | 45.20 | c | 52.94 | 70.50 | 71.42 | 80.10 | 80.10 | 83.61 | 83.04 | b | 72.08 | e | 49.31 | d | 39.26 | 63.63 | |||||||||
1988 | 35.90 | 47.93 | 52.42 | 64.90 | 67.52 | 75.55 | a | 85.63 | a | 86.45 | 77.56 | c | 74.03 | a | 45.79 | a | 36.27 | a | 62.50 | |||||||
1989 | 36.52 | 34.64 | 50.03 | 64.97 | 67.60 | a | 78.61 | b | 86.13 | 78.68 | c | 77.21 | b | 60.83 | a | 48.33 | c | 41.97 | 60.46 | |||||||
1990 | 41.42 | 43.86 | 55.39 | h | 65.37 | 64.50 | a | 75.10 | a | 88.55 | 85.42 | 86.00 | b | 60.29 | 48.48 | c | 31.11 | d | 62.74 | a | ||||||
1991 | 35.42 | 52.16 | c | 50.13 | a | 58.33 | i | 63.84 | 70.27 | 86.61 | 89.32 | 80.93 | b | 66.23 | 42.40 | 39.61 | c | 61.54 | a | |||||||
1992 | 40.80 | a | 52.00 | 62.10 | 66.46 | d | 77.24 | b | 80.93 | b | 80.77 | 87.74 | 77.53 | 68.06 | 43.86 | b | 37.32 | c | 64.57 | |||||||
1993 | 31.42 | 39.32 | 53.26 | 57.53 | 75.35 | 72.14 | a | 73.19 | 80.03 | 79.07 | 66.00 | 42.76 | a | 39.48 | 59.13 | |||||||||||
1994 | 43.50 | a | 43.64 | 57.48 | 62.68 | b | 70.10 | 77.79 | a | 89.97 | 91.20 | a | 82.93 | 61.07 | b | 39.41 | a | 34.79 | b | 62.88 | ||||||
1995 | 40.84 | 50.35 | b | 51.81 | 57.76 | a | 67.52 | 72.60 | 83.66 | b | 83.23 | 81.60 | 59.97 | 50.45 | a | 37.53 | a | 61.44 | ||||||||
1996 | 38.50 | c | 42.83 | 53.45 | 60.13 | 61.47 | a | 76.73 | 91.57 | a | 87.52 | 72.93 | 63.94 | 47.33 | 37.00 | a | 61.12 | |||||||||
1997 | 36.41 | b | 44.36 | 51.77 | 56.39 | b | 72.55 | 72.87 | 82.67 | d | 87.90 | 78.93 | a | 63.07 | b | 50.57 | b | 37.48 | b | 61.25 | ||||||
1998 | 43.14 | b | 48.39 | 52.57 | a | 62.10 | 68.18 | c | 73.17 | a | 90.65 | 91.16 | 83.87 | 62.19 | 43.04 | b | 35.71 | c | 62.85 | |||||||
1999 | 40.30 | a | 39.18 | 51.86 | b | 56.53 | 65.74 | 73.50 | 86.35 | 88.26 | 78.40 | 69.21 | b | 53.07 | 36.80 | a | 61.60 | |||||||||
2000 | 39.10 | a | 42.79 | ----- | z | 65.59 | c | 66.26 | 74.93 | 88.93 | a | 91.52 | 72.97 | a | 61.19 | 36.41 | a | 35.10 | a | 61.35 | a | |||||
2001 | 34.81 | d | 40.07 | a | 52.03 | a | 56.32 | b | 74.73 | a | 75.27 | 85.00 | b | 93.94 | 88.24 | a | 59.60 | a | 48.41 | a | 33.82 | c | 61.85 | |||
2002 | 34.86 | b | 40.44 | a | 44.10 | a | 58.54 | b | 66.79 | b | 76.66 | a | 92.52 | 84.58 | 77.70 | 56.47 | a | 47.40 | 40.23 | 60.02 | ||||||
2003 | 42.10 | 44.74 | a | 50.57 | a | 55.79 | a | 68.62 | b | 84.57 | 95.84 | 91.29 | 85.21 | a | 70.34 | b | 35.90 | 36.57 | c | 63.46 | ||||||
2004 | 30.23 | a | 40.17 | 60.35 | 63.80 | ----- | z | 77.90 | 86.77 | 86.97 | 75.47 | 62.10 | ----- | z | ----- | z | 64.86 | c | ||||||||
2005 | 42.13 | 47.79 | 57.61 | 61.73 | ----- | z | ----- | z | 89.90 | ----- | z | ----- | z | ----- | z | ----- | z | 29.90 | 54.84 | f | ||||||
2006 | ----- | z | ----- | z | ----- | z | 53.76 | a | 76.13 | ----- | z | 91.03 | 85.37 | a | 77.25 | b | 62.50 | a | 46.79 | b | ----- | z | 70.40 | e | ||
2007 | ----- | z | ----- | z | ----- | z | ----- | z | 67.63 | a | ----- | z | 94.65 | 88.26 | 71.97 | ----- | z | 42.63 | 35.84 | 66.83 | f | |||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | 35.04 | c | 41.32 | 41.19 | 51.67 | c | 56.06 | 74.27 | 84.77 | 87.87 | a | 74.17 | 52.27 | a | 38.83 | ----- | z | 57.95 | a | |||||||
2010 | 38.03 | 41.18 | 50.32 | 54.66 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.05 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.19 | 43.81 | 51.31 | 59.12 | 67.49 | 75.47 | 85.50 | 85.79 | 76.22 | 62.47 | 45.11 | 36.73 | 60.56 | |||||||||||||
S.D. | 3.86 | 4.13 | 4.80 | 4.95 | 4.46 | 3.89 | 4.61 | 4.36 | 5.67 | 4.81 | 4.43 | 3.43 | 1.98 | |||||||||||||
SKEW | -0.46 | 0.27 | 0.07 | 0.17 | 0.01 | 0.20 | 0.04 | -0.53 | -0.00 | 0.29 | -0.67 | -0.18 | -0.00 | |||||||||||||
MAX | 43.50 | 52.16 | 62.10 | 70.50 | 77.24 | 84.57 | 95.84 | 93.94 | 88.24 | 74.03 | 53.07 | 43.61 | 64.57 | |||||||||||||
MIN | 27.48 | 34.64 | 41.19 | 48.50 | 56.06 | 67.57 | 73.19 | 75.26 | 66.20 | 52.27 | 33.70 | 29.90 | 56.81 | |||||||||||||
YRS | 38 | 37 | 37 | 39 | 38 | 37 | 40 | 39 | 39 | 38 | 36 | 37 | 29 |