YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | 44.52 | 41.81 | c | 56.98 | a | 61.37 | 76.61 | 73.08 | 65.00 | ----- | z | 43.83 | 23.47 | b | 54.07 | c | ||||||
1968 | 30.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.55 | c | 67.95 | b | 62.82 | 52.18 | 41.18 | 27.16 | 51.02 | e | |||||
1969 | 34.34 | 33.48 | 38.13 | 52.33 | 64.11 | 67.42 | 73.95 | 74.60 | 65.98 | 49.92 | 40.45 | 37.27 | 52.67 | |||||||||||||
1970 | 38.26 | 42.48 | 45.24 | 47.02 | 63.44 | 70.57 | 76.71 | 75.19 | 59.72 | a | 50.24 | 40.62 | 31.56 | 53.42 | ||||||||||||
1971 | 31.66 | 38.39 | 44.12 | a | 49.65 | 58.31 | 68.41 | a | 73.93 | a | 73.78 | a | 60.47 | a | 49.03 | a | 40.23 | ----- | z | 53.45 | a | |||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.37 | d | 39.10 | f | 32.16 | l | 48.37 | k |
1987 | 21.30 | i | 34.02 | e | 39.12 | c | 52.50 | c | 56.34 | b | 66.09 | b | 66.54 | c | 69.54 | e | 62.08 | f | 53.28 | a | ----- | z | 37.43 | c | 52.76 | c |
1988 | 21.88 | c | 35.54 | f | 40.86 | c | 45.98 | f | 54.64 | b | 68.72 | ----- | z | ----- | z | 59.18 | ----- | z | 43.17 | 28.98 | k | 48.07 | f | |||
1989 | 17.37 | 28.67 | e | 43.08 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.71 | i | ||
1990 | ----- | z | 23.73 | o | 38.27 | c | 51.75 | b | 55.32 | a | 67.65 | 73.12 | a | 67.90 | 60.68 | b | ----- | z | 38.06 | d | 22.80 | c | 52.84 | c | ||
1991 | 28.76 | b | 38.83 | a | 36.12 | r | 45.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.66 | i | |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.06 | e | 59.30 | c | 50.87 | a | 33.84 | b | 23.79 | b | 47.17 | g |
1994 | 30.73 | c | ----- | z | 50.03 | a | ----- | z | 57.05 | 68.28 | e | 71.70 | f | 69.63 | h | 60.70 | 49.23 | 31.46 | d | 30.31 | b | 47.22 | d | |||
1995 | 34.47 | b | 41.44 | b | 41.44 | 45.95 | ----- | z | 60.13 | d | 69.23 | 70.18 | a | 63.84 | b | 51.61 | 43.42 | 32.84 | b | 50.41 | a | |||||
1996 | 31.92 | a | 40.32 | a | 44.35 | a | 51.33 | a | 58.66 | c | 67.90 | a | 74.37 | 71.18 | a | 61.55 | a | 49.93 | d | 40.09 | a | 33.26 | b | 52.07 | ||
1997 | 28.13 | 36.28 | a | 45.71 | 49.07 | b | 60.77 | a | 66.50 | a | 68.56 | 70.35 | a | 65.03 | a | 51.55 | 40.33 | 29.44 | 50.98 | |||||||
1998 | 34.13 | a | 35.80 | a | 39.50 | k | 44.10 | f | 51.36 | c | 60.44 | f | 72.12 | c | ----- | z | ----- | z | ----- | z | 47.40 | y | 32.38 | c | 45.16 | g |
1999 | 33.52 | b | 35.81 | a | 42.87 | d | 43.77 | d | 55.17 | g | 64.00 | c | 71.32 | c | 67.87 | d | 62.57 | c | 51.98 | b | 41.67 | g | 30.54 | f | 52.64 | c |
2000 | 32.12 | f | 37.98 | h | 41.60 | a | 52.04 | d | 59.52 | d | ----- | z | ----- | z | 70.13 | a | 62.62 | f | 50.79 | c | 33.40 | a | 32.41 | d | 48.55 | e |
2001 | 29.44 | g | 32.80 | f | 44.73 | a | 46.19 | c | 61.02 | e | ----- | z | 69.78 | d | 72.61 | v | 63.10 | j | 54.02 | 38.07 | ----- | z | 52.30 | f | ||
2002 | 29.84 | c | 38.02 | 40.27 | 51.08 | d | 55.30 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.90 | g | ||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.53 | n | 71.35 | d | 65.48 | c | 57.94 | o | 35.72 | g | 30.46 | f | 68.42 | j |
2004 | ----- | z | 28.77 | e | ----- | z | 51.36 | b | 57.98 | a | 67.25 | f | 71.24 | h | 69.47 | a | 61.91 | g | 49.81 | b | 38.70 | e | ----- | z | 49.35 | f |
2005 | 37.77 | p | 36.79 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.36 | m | 36.79 | k |
2006 | 32.50 | k | 35.50 | p | 36.18 | q | 48.09 | g | 61.37 | 70.28 | 76.18 | 69.11 | 61.10 | ----- | z | ----- | z | ----- | z | 67.61 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.38 | 36.37 | 42.77 | 48.75 | 58.26 | 66.72 | 72.71 | 70.61 | 62.23 | 50.85 | 39.12 | 30.32 | 52.28 | |||||||||||||
S.D. | 5.35 | 4.14 | 3.13 | 3.46 | 3.38 | 3.15 | 3.23 | 2.42 | 2.35 | 1.59 | 3.69 | 4.84 | 1.03 | |||||||||||||
SKEW | -1.11 | -0.54 | 0.40 | -0.58 | -0.05 | -0.93 | -0.43 | 0.61 | 0.29 | 0.40 | -0.76 | -0.23 | -0.25 | |||||||||||||
MAX | 38.26 | 42.48 | 50.03 | 52.50 | 64.11 | 70.57 | 76.71 | 75.19 | 65.98 | 54.02 | 43.83 | 37.43 | 53.42 | |||||||||||||
MIN | 17.37 | 28.67 | 38.13 | 41.81 | 51.36 | 60.13 | 66.54 | 67.87 | 59.18 | 48.37 | 31.46 | 22.80 | 50.98 | |||||||||||||
YRS | 14 | 14 | 16 | 15 | 16 | 13 | 14 | 16 | 15 | 15 | 15 | 13 | 4 |