YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | 27.77 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.77 | k |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.58 | e | 71.00 | x | 59.07 | p | ----- | z | ----- | z | 86.58 | k |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.23 | e | 37.82 | b | ----- | z | 50.03 | j |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.57 | ----- | z | 40.57 | k | |
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 | 36.77 | h | ----- | 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 | 82.33 | ----- | z | 41.64 | b | 22.74 | 48.91 | i | ||
1979 | 8.83 | b | 12.96 | 32.90 | 51.20 | 63.94 | 77.60 | 85.06 | 80.00 | a | 79.62 | a | ----- | z | ----- | z | ----- | z | 54.68 | c | ||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.37 | 74.13 | a | 76.87 | 73.52 | a | 61.81 | 35.07 | 25.10 | 60.41 | e | |||||
1993 | 20.58 | 21.82 | 40.10 | 55.41 | a | 68.71 | 73.00 | 77.45 | 80.26 | 66.93 | 61.77 | 39.29 | b | 28.03 | 52.78 | |||||||||||
1994 | 10.97 | 17.52 | a | 40.71 | 58.48 | a | 73.32 | 80.03 | 79.90 | 78.26 | 73.90 | 61.52 | 47.79 | a | 30.74 | 54.43 | ||||||||||
1995 | 29.65 | 31.41 | a | 38.00 | 47.77 | 63.35 | 78.97 | a | 81.61 | 83.52 | 72.20 | 55.13 | a | 35.70 | 26.52 | 53.65 | ||||||||||
1996 | 15.65 | 25.90 | 30.68 | 52.63 | 62.61 | 79.00 | 81.00 | 84.84 | 71.87 | 60.00 | 28.79 | a | 15.90 | 50.74 | ||||||||||||
1997 | 13.50 | a | 26.68 | 34.26 | 51.00 | 64.48 | 80.03 | 81.45 | 80.35 | 75.10 | 61.77 | 35.77 | 34.10 | 53.21 | ||||||||||||
1998 | 23.32 | 36.54 | 33.00 | 59.10 | 72.32 | 73.77 | 85.29 | 83.16 | 81.10 | 61.39 | 41.20 | 34.84 | 57.09 | |||||||||||||
1999 | 19.39 | 38.61 | 46.16 | 55.83 | 69.48 | 76.73 | 84.81 | 82.84 | 68.97 | 58.42 | 53.83 | 37.65 | 57.73 | |||||||||||||
2000 | 27.23 | 38.41 | 52.13 | 56.63 | 71.16 | 77.27 | 83.81 | 84.03 | 76.60 | 62.74 | 32.10 | 15.40 | a | 56.46 | ||||||||||||
2001 | 24.52 | 17.14 | 32.10 | 53.80 | 70.06 | 77.70 | 86.32 | 85.90 | 74.33 | 59.61 | 54.57 | 30.13 | 55.52 | |||||||||||||
2002 | 27.65 | 39.39 | 31.23 | 55.77 | 64.68 | 83.55 | a | 89.16 | 82.74 | 76.80 | 49.45 | 42.37 | 34.58 | 56.45 | ||||||||||||
2003 | 24.71 | 24.04 | 41.17 | a | 59.83 | 66.84 | 75.63 | 84.45 | 86.97 | 74.37 | 65.32 | 34.77 | 32.42 | 55.88 | ||||||||||||
2004 | 21.30 | a | 28.21 | 46.68 | 61.53 | 66.26 | 73.93 | 80.77 | a | 76.58 | 76.13 | 60.65 | 47.00 | 32.61 | 55.97 | |||||||||||
2005 | 19.77 | 35.36 | 43.45 | 63.17 | 66.35 | 78.23 | 84.61 | 82.87 | 77.60 | 61.90 | 47.00 | c | 22.87 | 56.93 | ||||||||||||
2006 | 33.39 | 29.96 | 41.87 | 61.93 | 69.32 | 79.97 | 91.58 | 84.74 | 67.87 | 57.43 | a | 44.37 | 36.74 | 58.26 | ||||||||||||
2007 | 22.35 | 17.43 | 42.23 | 51.83 | 71.97 | 78.67 | 86.77 | 80.84 | 74.93 | 62.32 | 43.83 | a | 22.65 | 54.65 | ||||||||||||
2008 | 20.03 | 18.73 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.03 | k | |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.70 | 27.59 | 39.17 | 56.00 | 67.80 | 77.67 | 83.42 | 82.30 | 74.68 | 60.20 | 41.23 | 28.41 | 55.32 | |||||||||||||
S.D. | 6.51 | 8.63 | 6.34 | 4.46 | 3.45 | 2.67 | 4.22 | 3.12 | 4.19 | 3.60 | 6.91 | 6.82 | 2.06 | |||||||||||||
SKEW | -0.31 | -0.11 | 0.28 | -0.05 | 0.05 | 0.07 | -0.25 | -0.35 | -0.10 | -1.67 | 0.26 | -0.52 | -0.63 | |||||||||||||
MAX | 33.39 | 39.39 | 52.13 | 63.17 | 73.32 | 83.55 | 91.58 | 86.97 | 82.33 | 65.32 | 54.57 | 37.65 | 58.26 | |||||||||||||
MIN | 8.83 | 12.96 | 30.68 | 47.77 | 62.61 | 73.00 | 74.13 | 76.58 | 66.93 | 49.45 | 28.79 | 15.40 | 50.74 | |||||||||||||
YRS | 18 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 17 | 19 | 17 | 15 |