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 | 36.41 | c | 18.93 | h | 36.41 | k |
1984 | 21.34 | c | 27.80 | a | 33.95 | j | 40.50 | d | 59.73 | r | 64.16 | b | 72.03 | b | 72.35 | 60.81 | d | 45.56 | d | 38.77 | d | 30.87 | e | 47.42 | b | |
1985 | 25.04 | g | 24.33 | a | 40.02 | f | 49.20 | c | 58.74 | b | 64.94 | d | 72.17 | a | 70.95 | b | 59.44 | f | 50.41 | d | 31.38 | e | 26.16 | b | 49.81 | c |
1986 | 38.07 | c | 32.17 | d | 45.34 | c | 47.63 | c | ----- | z | 66.67 | 72.38 | b | 69.59 | c | 60.83 | c | 50.78 | b | 37.48 | d | 27.66 | 49.87 | a | ||
1987 | 31.00 | c | 37.12 | k | 36.21 | b | 49.93 | a | 58.53 | 67.37 | 73.52 | a | 68.10 | a | 60.08 | 49.67 | a | 37.33 | 26.94 | 50.79 | a | |||||
1988 | 21.84 | b | 30.33 | b | 34.25 | c | 46.52 | a | 56.54 | g | 69.87 | 71.50 | a | 72.32 | a | 62.55 | b | 53.14 | c | 38.05 | b | 29.23 | 48.15 | a | ||
1989 | 31.72 | d | 23.54 | b | 44.50 | c | 50.07 | 57.23 | a | 63.23 | 71.63 | a | 67.68 | a | 59.36 | a | 47.45 | 37.63 | 21.97 | 48.00 | ||||||
1990 | 28.40 | a | 25.54 | a | 35.06 | 45.91 | b | 50.97 | a | 69.10 | 68.32 | 68.45 | 66.00 | b | 49.79 | b | 38.26 | a | 22.36 | b | 47.35 | |||||
1991 | 23.23 | a | 36.71 | 37.15 | a | 45.57 | a | 57.59 | c | 67.78 | 70.42 | 68.92 | 61.42 | 48.10 | b | 30.19 | c | 27.09 | b | 47.85 | ||||||
1992 | 23.83 | d | 33.46 | d | 40.57 | a | 49.18 | b | 57.97 | a | 61.93 | a | 67.57 | a | 66.29 | 62.54 | c | 52.11 | d | 31.60 | a | 21.60 | a | 47.39 | ||
1993 | 20.43 | a | 24.95 | 39.31 | e | 44.52 | 55.35 | 63.40 | a | 69.02 | a | 67.53 | 56.74 | a | 46.67 | a | 29.43 | b | 30.17 | a | 45.63 | |||||
1994 | 29.02 | 25.20 | a | 40.48 | 45.03 | 58.93 | a | 71.00 | 71.63 | a | 73.08 | a | 63.43 | 51.53 | a | 36.72 | 34.00 | a | 50.01 | |||||||
1995 | 30.66 | c | 35.70 | a | 37.32 | a | 41.12 | b | 48.12 | b | 63.09 | a | ----- | z | 72.80 | i | 60.24 | g | 48.93 | p | 41.93 | i | 31.17 | b | 41.03 | e |
1996 | 25.93 | b | 30.60 | d | 34.22 | h | 47.09 | a | 56.31 | d | 66.12 | b | 70.48 | c | 71.25 | u | 59.17 | j | 50.23 | c | 34.86 | a | ----- | z | 47.70 | d |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.12 | 29.20 | 39.02 | 46.33 | 55.98 | 66.05 | 70.89 | 69.57 | 61.38 | 49.62 | 35.24 | 27.43 | 47.70 | |||||||||||||
S.D. | 5.28 | 4.61 | 3.76 | 3.06 | 3.63 | 2.87 | 1.79 | 2.28 | 2.50 | 2.27 | 3.36 | 3.95 | 1.41 | |||||||||||||
SKEW | 0.50 | 0.31 | 0.48 | -0.60 | -1.31 | 0.25 | -0.57 | 0.29 | 0.00 | -0.31 | -0.68 | -0.14 | 0.25 | |||||||||||||
MAX | 38.07 | 36.71 | 45.34 | 50.07 | 58.93 | 71.00 | 73.52 | 73.08 | 66.00 | 53.14 | 38.77 | 34.00 | 50.01 | |||||||||||||
MIN | 20.43 | 23.54 | 34.25 | 40.50 | 48.12 | 61.93 | 67.57 | 66.29 | 56.74 | 45.56 | 29.43 | 21.60 | 45.63 | |||||||||||||
YRS | 12 | 12 | 10 | 13 | 10 | 13 | 12 | 11 | 10 | 12 | 13 | 12 | 6 |