YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.61 | 51.23 | 38.10 | 50.65 | i | |||
1968 | 38.42 | 49.52 | 51.33 | a | 55.93 | 65.71 | 74.86 | a | 81.90 | a | 77.81 | 72.10 | 59.97 | a | 49.33 | 36.37 | a | 59.44 | ||||||||
1969 | 44.35 | 42.48 | a | 47.97 | a | 57.89 | b | 67.63 | a | 74.83 | 81.97 | 84.43 | c | 75.20 | 57.74 | 48.90 | a | 41.86 | b | 60.44 | ||||||
1970 | 39.37 | d | 46.04 | 49.72 | b | 53.03 | 66.90 | 74.30 | 81.55 | 81.62 | b | 68.52 | c | 57.57 | a | 48.00 | c | 39.79 | b | 58.87 | ||||||
1971 | 37.62 | b | 42.50 | 48.23 | 56.34 | a | 61.57 | a | 73.17 | 81.84 | 82.43 | a | 68.47 | 54.13 | a | 42.07 | 35.65 | 57.00 | ||||||||
1972 | 32.71 | 39.69 | 50.36 | c | 54.04 | c | 62.97 | 73.67 | 81.35 | 77.52 | 67.50 | 58.42 | 43.83 | 34.42 | 56.37 | |||||||||||
1973 | 35.55 | 42.36 | 44.53 | a | 53.13 | 65.97 | a | 73.27 | d | 81.10 | a | 78.80 | a | 67.73 | 56.37 | a | 45.68 | b | 37.90 | 56.87 | ||||||
1974 | 37.07 | b | 39.36 | 51.35 | 53.93 | 67.19 | 74.27 | 80.13 | 74.61 | 71.25 | b | 62.58 | 47.50 | 37.42 | 58.06 | |||||||||||
1975 | 36.03 | a | 41.18 | 46.32 | 52.23 | 64.30 | a | 73.93 | 81.07 | c | 74.58 | 70.60 | 55.68 | 43.33 | 37.74 | 56.42 | ||||||||||
1976 | 38.17 | b | 46.55 | 47.58 | 53.77 | 66.71 | 72.27 | 81.48 | 74.68 | 70.73 | 55.77 | ----- | z | ----- | z | 60.77 | b | |||||||||
1977 | 37.13 | 41.57 | 43.48 | 56.77 | 59.87 | 74.70 | 81.20 | a | 80.19 | 69.70 | 58.87 | 46.23 | 43.39 | 57.76 | ||||||||||||
1978 | 41.47 | a | 43.71 | 49.68 | 54.67 | 62.06 | 73.43 | 78.26 | 74.71 | 65.87 | 59.13 | 43.13 | 32.90 | 56.59 | ||||||||||||
1979 | 34.42 | 37.36 | 45.77 | 52.50 | 63.94 | 68.21 | b | 72.06 | 70.32 | 70.10 | 58.87 | 41.17 | 36.03 | 54.23 | ||||||||||||
1980 | 40.68 | 45.25 | a | 46.03 | 54.20 | 60.58 | 67.53 | 76.67 | a | 73.71 | ----- | z | 54.65 | ----- | z | 40.19 | 55.95 | b | ||||||||
1981 | 40.52 | 43.43 | 47.71 | 59.90 | 64.26 | 74.23 | 82.13 | 78.48 | 71.73 | 58.00 | 49.13 | 40.37 | a | 59.16 | ||||||||||||
1982 | 37.90 | b | 43.48 | a | 48.30 | a | 55.39 | b | 65.00 | b | 70.93 | 76.26 | d | 77.23 | a | 70.14 | a | 55.17 | a | 45.97 | 39.86 | b | 57.14 | |||
1983 | 39.10 | 45.41 | a | 49.54 | c | 51.64 | b | 61.97 | a | 69.81 | d | 75.60 | a | 73.35 | 70.37 | 57.03 | 46.76 | a | 40.55 | 56.76 | ||||||
1984 | 36.87 | 38.76 | 46.66 | b | 51.63 | 64.04 | c | 71.30 | 77.19 | 74.13 | 70.20 | 54.10 | a | 44.00 | 38.28 | b | 55.60 | |||||||||
1985 | 36.34 | b | 38.12 | b | 44.16 | 55.93 | a | 64.52 | 70.72 | a | 76.58 | 72.10 | b | 66.83 | a | 57.13 | a | 44.58 | d | 38.14 | b | 55.43 | ||||
1986 | 41.42 | e | 46.42 | b | ----- | z | 58.10 | 66.32 | 76.20 | 77.48 | 82.93 | c | 67.03 | 58.00 | 50.97 | 42.90 | b | 60.71 | a | |||||||
1987 | 38.07 | a | 46.33 | a | 47.87 | 59.92 | d | 66.30 | a | 73.80 | 75.29 | 79.77 | a | 70.87 | 62.57 | a | 49.34 | a | 38.66 | b | 59.07 | |||||
1988 | 38.63 | a | 43.54 | e | 49.17 | a | 55.77 | d | 64.53 | a | 73.50 | 81.61 | 76.81 | d | 68.77 | 64.07 | a | 49.93 | 40.70 | a | 58.92 | |||||
1989 | 39.00 | a | 43.64 | 52.47 | a | 62.20 | 66.27 | i | 73.87 | 79.62 | b | 75.84 | 69.28 | a | 59.32 | 49.10 | 40.68 | 58.64 | a | |||||||
1990 | 39.30 | a | 42.00 | 51.69 | b | 59.53 | 65.84 | 73.17 | 80.52 | 77.40 | a | 72.79 | a | 60.03 | a | 49.39 | b | 35.64 | c | 58.94 | ||||||
1991 | 39.61 | 46.39 | 46.29 | c | 54.79 | b | 61.32 | 70.87 | 78.23 | 77.48 | 70.50 | 61.87 | 48.70 | 41.59 | b | 58.14 | ||||||||||
1992 | 39.71 | 48.00 | c | 51.06 | 58.07 | 67.10 | b | 71.93 | 76.14 | b | 78.81 | 71.27 | 61.74 | 46.50 | 39.48 | 59.15 | ||||||||||
1993 | 41.63 | a | 45.32 | 50.17 | b | 55.79 | a | 66.37 | a | 70.47 | 76.45 | 76.45 | 68.66 | a | 60.48 | 45.13 | 39.58 | 58.04 | ||||||||
1994 | 40.61 | 41.68 | 52.87 | a | 58.90 | a | 64.84 | 76.93 | 79.71 | 81.10 | 72.43 | 58.70 | a | 44.40 | 43.46 | c | 59.64 | |||||||||
1995 | 44.10 | 48.43 | 49.97 | 56.48 | a | 62.87 | 71.00 | a | 78.58 | 79.13 | 73.34 | a | 59.29 | 52.57 | 43.17 | a | 59.91 | |||||||||
1996 | 41.21 | b | 49.07 | 52.00 | 60.37 | 68.33 | a | 74.14 | a | 84.32 | 83.16 | 72.73 | 60.77 | a | 51.13 | 43.57 | a | 61.73 | ||||||||
1997 | 43.53 | a | 45.21 | 52.29 | 58.80 | 71.87 | 75.07 | a | 77.29 | 80.97 | a | 74.24 | a | 59.65 | 49.64 | b | 40.03 | a | 60.72 | |||||||
1998 | 42.61 | 44.82 | 49.58 | 53.60 | 63.06 | 70.90 | a | 79.87 | 80.73 | a | 72.37 | 59.35 | 47.97 | a | 40.35 | 58.77 | ||||||||||
1999 | 41.55 | 44.78 | a | 53.10 | 54.83 | 65.19 | 71.80 | 79.74 | 78.48 | 73.10 | a | 60.28 | b | 50.20 | 41.33 | a | 59.53 | |||||||||
2000 | 44.76 | b | 47.93 | 51.03 | 61.63 | 72.13 | 78.77 | 80.32 | 82.00 | a | 70.70 | 62.10 | a | 44.55 | a | 42.45 | 61.53 | |||||||||
2001 | 40.58 | 44.36 | c | 51.74 | 56.56 | c | 71.03 | 76.60 | 80.00 | 82.00 | 73.23 | 62.97 | 52.48 | a | 38.85 | d | 60.87 | |||||||||
2002 | 39.32 | f | 42.04 | 47.35 | 62.45 | a | 65.59 | b | 75.17 | 83.39 | 78.77 | a | 72.17 | f | 59.23 | 49.55 | a | 42.21 | b | 60.57 | b | |||||
2003 | 44.80 | a | 43.82 | k | 50.26 | h | 56.75 | r | 66.54 | c | 76.71 | b | 82.59 | b | 81.21 | b | 73.33 | f | 65.10 | 47.82 | b | 41.75 | c | 63.31 | d | |
2004 | 40.20 | f | 43.23 | c | 54.74 | d | 59.54 | f | 67.93 | c | 76.44 | c | 81.04 | e | 79.50 | g | 71.14 | a | 60.36 | f | 48.12 | d | 41.00 | d | 60.45 | d |
2005 | 43.93 | d | 46.46 | 49.46 | e | 54.20 | e | 67.33 | g | 72.31 | d | 81.17 | b | 78.09 | i | ----- | z | 64.90 | u | 43.33 | x | 39.36 | q | 57.92 | f | |
2006 | 40.46 | r | 41.69 | l | 46.95 | l | 57.29 | f | 71.61 | m | 76.00 | e | 85.05 | i | 79.75 | g | 67.33 | i | 58.48 | d | 48.77 | h | 38.27 | p | 67.24 | j |
2007 | 33.50 | w | 43.40 | h | 50.35 | k | 58.40 | j | 68.00 | j | 73.04 | c | 80.22 | h | 78.32 | l | 72.05 | j | ----- | z | ----- | z | ----- | z | 73.04 | k |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.69 | 43.96 | 49.21 | 56.25 | 65.34 | 73.35 | 79.52 | 78.16 | 70.57 | 59.15 | 47.45 | 39.63 | 58.37 | |||||||||||||
S.D. | 2.97 | 3.03 | 2.71 | 2.99 | 2.87 | 2.42 | 2.64 | 3.41 | 2.22 | 2.73 | 2.95 | 2.65 | 1.86 | |||||||||||||
SKEW | -0.09 | -0.26 | -0.22 | 0.43 | 0.42 | -0.23 | -0.64 | -0.25 | -0.12 | 0.05 | -0.28 | -0.55 | -0.18 | |||||||||||||
MAX | 44.80 | 49.52 | 54.74 | 62.45 | 72.13 | 78.77 | 84.32 | 84.43 | 75.20 | 65.10 | 52.57 | 43.57 | 61.73 | |||||||||||||
MIN | 32.71 | 37.36 | 43.48 | 51.63 | 59.87 | 67.53 | 72.06 | 70.32 | 65.87 | 54.10 | 41.17 | 32.90 | 54.23 | |||||||||||||
YRS | 36 | 37 | 36 | 36 | 36 | 40 | 38 | 36 | 34 | 38 | 36 | 37 | 30 |