YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | 26.16 | 26.80 | 38.00 | 41.50 | 57.74 | 52.35 | 43.23 | ----- | z | 24.87 | 6.81 | 35.27 | c | |||||||||
1968 | 10.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.73 | a | 50.29 | 41.67 | 32.26 | 22.67 | 10.52 | 32.48 | e | ||||||
1969 | 21.32 | 22.75 | 22.81 | 35.70 | 46.29 | 49.80 | 55.65 | 54.35 | 45.23 | 31.32 | 20.60 | 19.48 | 35.44 | |||||||||||||
1970 | 22.48 | 25.29 | 28.97 | 29.63 | 45.48 | 54.13 | 59.23 | 57.26 | 36.73 | 30.03 | 22.60 | 18.29 | 35.84 | |||||||||||||
1971 | 15.90 | 20.82 | 24.84 | 31.73 | 42.35 | 48.20 | 53.06 | 54.90 | 38.03 | 29.32 | 23.27 | ----- | z | 34.77 | 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 | 29.21 | b | 20.19 | d | 14.15 | k | 24.70 | j |
1987 | 5.65 | h | 19.54 | d | 23.31 | b | 32.86 | a | 39.80 | a | 45.11 | b | 47.11 | c | 49.30 | d | 40.08 | f | 33.37 | a | ----- | z | 25.48 | b | 35.10 | c |
1988 | 4.47 | a | 18.17 | f | 23.21 | c | 30.96 | f | 36.13 | a | 52.43 | ----- | z | ----- | z | 39.03 | ----- | z | 29.13 | 17.33 | j | 30.74 | f | |||
1989 | -0.61 | 13.88 | d | 25.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.01 | i | ||
1990 | ----- | z | 13.07 | m | 23.04 | c | 34.39 | b | 37.80 | a | 47.80 | 54.10 | a | 48.29 | 42.71 | b | ----- | z | 20.04 | d | 3.23 | a | 34.60 | c | ||
1991 | 13.37 | a | 16.37 | a | 21.08 | r | 27.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.93 | i | |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.73 | e | 36.75 | b | 30.27 | a | 15.04 | b | 5.43 | a | 27.24 | g |
1994 | 15.00 | c | ----- | z | 33.50 | a | ----- | z | 38.94 | 48.08 | e | 50.92 | f | 47.96 | h | 39.87 | 29.94 | 15.88 | d | 15.52 | b | 29.59 | d | |||
1995 | 26.23 | a | 21.11 | a | 26.16 | 28.47 | ----- | z | 43.83 | a | 48.32 | 50.84 | 43.10 | 29.23 | 21.37 | 14.94 | 32.14 | a | ||||||||
1996 | 13.58 | 24.07 | 26.84 | 33.80 | 40.00 | c | 47.87 | 54.71 | 51.26 | 42.07 | a | 30.32 | c | 24.43 | 19.23 | 34.01 | ||||||||||
1997 | 17.00 | 20.61 | 24.39 | 31.83 | a | 40.53 | a | 49.77 | 46.52 | 50.42 | 48.40 | 31.13 | 24.07 | 16.16 | 33.40 | |||||||||||
1998 | 19.74 | 25.39 | 24.67 | g | 27.38 | d | 34.66 | b | 42.44 | e | 52.18 | c | ----- | z | ----- | z | ----- | z | 31.60 | y | 12.86 | c | 30.66 | e | ||
1999 | 13.76 | b | 18.85 | a | 22.63 | d | 28.08 | d | 36.71 | g | 44.37 | c | 54.04 | c | 49.37 | d | 43.15 | c | 28.55 | b | 20.17 | g | 11.04 | f | 33.64 | c |
2000 | 14.80 | f | 23.81 | h | 25.87 | a | 33.81 | d | 40.81 | d | ----- | z | ----- | z | 51.77 | a | 42.12 | f | 33.48 | b | 17.55 | a | 12.07 | d | 30.77 | e |
2001 | 10.08 | g | 19.73 | f | 29.26 | 31.82 | b | 39.65 | e | ----- | z | 50.89 | d | 51.78 | v | 40.70 | j | 30.58 | 19.03 | ----- | z | 33.54 | f | |||
2002 | 14.71 | c | 18.04 | 21.39 | 31.62 | d | 35.30 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.21 | g | ||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.59 | n | 54.15 | d | 45.52 | c | 34.12 | o | 19.35 | g | 14.58 | e | 38.08 | i |
2004 | ----- | z | 10.79 | e | ----- | z | 35.39 | b | 39.17 | a | 47.54 | f | 52.48 | h | 51.33 | a | 41.87 | g | 32.93 | b | 23.81 | d | ----- | z | 32.24 | f |
2005 | 23.20 | p | 23.58 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.22 | m | 23.58 | k |
2006 | 16.90 | k | 13.58 | p | 21.50 | q | 31.70 | g | 42.84 | 50.50 | 58.77 | 48.97 | 41.43 | ----- | z | ----- | z | ----- | z | 48.50 | g | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.80 | 20.08 | 25.51 | 31.27 | 39.86 | 47.56 | 53.72 | 51.47 | 41.80 | 30.80 | 21.53 | 13.90 | 34.68 | |||||||||||||
S.D. | 6.98 | 4.27 | 3.09 | 3.01 | 3.27 | 3.71 | 4.37 | 2.55 | 3.30 | 1.58 | 3.61 | 6.04 | 1.16 | |||||||||||||
SKEW | -0.59 | -0.70 | 1.06 | -0.15 | 0.36 | -0.01 | -0.25 | 0.77 | 0.10 | 0.48 | -0.01 | -0.09 | -0.08 | |||||||||||||
MAX | 26.23 | 25.39 | 33.50 | 35.70 | 46.29 | 54.13 | 59.73 | 57.26 | 48.40 | 33.48 | 29.13 | 25.48 | 35.84 | |||||||||||||
MIN | -0.61 | 10.79 | 21.39 | 26.80 | 34.66 | 41.50 | 46.52 | 48.29 | 36.73 | 28.55 | 15.04 | 3.23 | 33.40 | |||||||||||||
YRS | 14 | 14 | 16 | 16 | 16 | 14 | 14 | 16 | 15 | 15 | 16 | 14 | 4 |