YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | 42.48 | g | 54.37 | 68.95 | 69.71 | 69.63 | 57.72 | 48.27 | 35.77 | 27.82 | 54.03 | d | ||||||||
1989 | 29.15 | 17.98 | 35.47 | 44.13 | 53.90 | 60.52 | b | 71.89 | c | 66.78 | d | 57.45 | 46.45 | 37.35 | 22.38 | b | 45.29 | |||||||||
1990 | 30.18 | 28.52 | 32.31 | 43.32 | 49.45 | a | 65.50 | 66.59 | b | 66.60 | 61.15 | c | 45.81 | 37.88 | 20.22 | b | 45.63 | |||||||||
1991 | 22.79 | 35.23 | 36.05 | 42.68 | 54.60 | 63.79 | a | 68.93 | j | 68.45 | 59.02 | c | 44.98 | c | 32.50 | 29.16 | b | 44.48 | a | |||||||
1992 | 27.47 | b | 35.88 | 39.13 | 46.84 | a | 58.79 | g | 63.95 | i | 65.61 | 64.00 | 60.00 | a | 47.69 | 30.38 | 19.78 | d | 43.68 | b | ||||||
1993 | 22.29 | 23.00 | 37.38 | b | 42.70 | 54.00 | 60.38 | b | 66.71 | c | 65.81 | g | 54.71 | d | 44.26 | 26.82 | 28.18 | 41.86 | a | |||||||
1994 | 28.95 | 23.79 | 38.08 | 43.95 | a | 57.11 | d | 66.12 | b | 68.33 | d | 69.94 | g | 61.00 | 46.87 | 33.30 | 31.15 | 45.33 | a | |||||||
1995 | 26.40 | 31.33 | a | 35.28 | a | 39.73 | 46.36 | b | 59.69 | c | 68.25 | g | 70.91 | d | 56.84 | b | 44.31 | 37.53 | a | 29.38 | b | 43.43 | a | |||
1996 | 22.15 | 28.69 | 30.60 | a | 43.62 | 52.55 | 63.80 | c | 69.85 | 67.38 | g | 57.42 | 46.73 | 33.90 | 28.53 | b | 43.44 | a | ||||||||
1997 | 24.06 | 27.07 | 37.47 | 38.16 | a | 52.40 | 63.77 | 69.44 | 67.10 | 60.33 | 46.29 | 32.13 | 27.29 | 45.46 | ||||||||||||
1998 | 28.27 | a | 31.36 | 33.65 | 42.05 | 55.27 | 58.22 | 70.35 | 68.87 | 63.78 | a | 46.16 | 38.45 | 25.19 | b | 46.80 | ||||||||||
1999 | 30.44 | 34.75 | 37.77 | 40.15 | 52.55 | 62.64 | a | 71.15 | a | 68.18 | a | 54.93 | a | 46.77 | a | 41.20 | 31.79 | 47.69 | ||||||||
2000 | 30.68 | a | 34.00 | 37.66 | 44.63 | 55.55 | a | 63.02 | 72.03 | a | 72.00 | 58.75 | 47.24 | 25.17 | 23.98 | 47.06 | ||||||||||
2001 | 26.50 | 25.62 | b | 35.26 | 44.87 | 53.66 | 63.74 | a | 72.73 | 69.05 | a | 61.05 | 46.68 | 38.12 | 28.42 | a | 47.14 | |||||||||
2002 | 27.18 | 27.98 | 29.65 | 45.62 | b | 51.20 | a | 68.37 | 73.92 | 68.02 | 59.37 | 40.24 | 33.20 | 30.92 | 46.30 | |||||||||||
2003 | 32.34 | 24.89 | 36.05 | 47.76 | c | 54.69 | 59.54 | b | 74.28 | b | 71.57 | a | 57.12 | a | 50.40 | 32.22 | a | 29.53 | 47.53 | |||||||
2004 | 29.21 | 27.50 | 40.11 | 45.55 | 52.92 | g | 61.83 | f | 68.34 | 64.65 | 59.58 | 47.79 | 33.15 | 29.81 | 44.57 | b | ||||||||||
2005 | 29.39 | 31.77 | 36.29 | 42.75 | 52.10 | 63.13 | 72.03 | 66.85 | 61.13 | 47.44 | 38.83 | a | 26.29 | 47.33 | ||||||||||||
2006 | 34.34 | 25.25 | 32.68 | 46.65 | 55.39 | 67.60 | 73.34 | 68.95 | a | 53.72 | 45.34 | 36.03 | 27.40 | 47.22 | ||||||||||||
2007 | 20.58 | a | 27.65 | a | 41.26 | 42.30 | 55.39 | 65.55 | 73.60 | 71.60 | 60.13 | 49.00 | a | 36.42 | 20.54 | d | 47.00 | |||||||||
2008 | 19.83 | a | 28.03 | 35.63 | 40.72 | 52.74 | 62.57 | a | 71.79 | 66.74 | 57.40 | 46.02 | 39.59 | a | ----- | z | 47.37 | a | ||||||||
2009 | 28.37 | 32.71 | 35.35 | 41.65 | 54.21 | 61.57 | 67.40 | a | 66.68 | f | 58.55 | 38.15 | ----- | z | ----- | z | 46.44 | c | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.17 | 28.71 | 35.86 | 43.33 | 53.37 | 63.42 | 70.45 | 68.33 | 58.69 | 46.04 | 34.76 | 26.89 | 46.71 | |||||||||||||
S.D. | 3.91 | 4.54 | 2.92 | 2.47 | 2.40 | 2.97 | 2.64 | 2.28 | 2.42 | 2.66 | 4.10 | 3.70 | 0.83 | |||||||||||||
SKEW | -0.34 | -0.29 | -0.36 | -0.16 | -1.28 | 0.18 | -0.28 | -0.06 | -0.20 | -1.47 | -0.68 | -0.73 | -0.66 | |||||||||||||
MAX | 34.34 | 35.88 | 41.26 | 47.76 | 57.11 | 68.95 | 74.28 | 72.00 | 63.78 | 50.40 | 41.20 | 31.79 | 47.69 | |||||||||||||
MIN | 19.83 | 17.98 | 29.65 | 38.16 | 46.36 | 58.22 | 65.61 | 64.00 | 53.72 | 38.15 | 25.17 | 19.78 | 45.29 | |||||||||||||
YRS | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 18 | 22 | 22 | 21 | 20 | 12 |