YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.34 | b | 12.16 | 21.25 | j | |
1950 | 13.35 | 18.93 | a | 20.19 | 33.07 | 37.94 | 46.82 | 50.81 | 48.98 | 43.92 | 41.81 | 27.37 | 20.71 | 33.66 | ||||||||||||
1951 | 14.00 | 15.00 | 19.07 | a | 29.17 | 39.34 | 45.15 | 54.66 | 51.85 | 45.22 | 36.77 | e | ----- | z | ----- | z | 35.02 | b | ||||||||
1952 | ----- | z | ----- | z | ----- | z | 31.30 | y | 38.76 | 48.68 | 52.37 | 52.94 | 45.73 | 37.45 | 29.23 | q | ----- | z | 45.99 | f | ||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 37.03 | a | 49.48 | 54.34 | 51.61 | 46.05 | 36.23 | 26.67 | u | ----- | z | 45.79 | f | |||||
1954 | ----- | z | ----- | z | ----- | z | 37.83 | r | 42.69 | 48.60 | 54.55 | 51.29 | 47.15 | 40.65 | ----- | z | ----- | z | 47.49 | f | ||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 38.27 | 45.38 | 52.05 | 53.55 | 46.08 | 38.05 | a | ----- | z | ----- | z | 45.56 | f | |||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 42.39 | 50.52 | 52.92 | 49.68 | 47.07 | 35.65 | ----- | z | ----- | z | 46.37 | f | ||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 34.19 | g | 47.80 | 53.61 | 52.15 | 44.13 | 35.77 | 26.50 | u | ----- | z | 46.69 | g | |||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | 43.54 | g | 49.27 | 52.47 | 54.05 | 46.62 | 36.66 | ----- | z | ----- | z | 47.81 | g | |||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | 40.08 | 50.43 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.26 | j | ||
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 | 36.18 | i | 23.87 | g | 14.91 | i | ----- | z |
1986 | 18.32 | i | 20.90 | h | 24.73 | g | 30.12 | e | 39.00 | j | ----- | z | 50.98 | a | 51.31 | w | 42.24 | e | 33.27 | g | 23.71 | i | 13.70 | h | 41.11 | i |
1987 | 13.68 | i | 16.40 | h | 20.85 | n | 37.50 | u | 40.97 | b | 50.62 | b | 56.12 | e | 60.26 | f | 45.34 | e | 38.10 | b | 24.75 | l | 12.26 | j | 46.23 | g |
1988 | 7.94 | n | 16.86 | g | 17.45 | i | 32.39 | c | 39.63 | 49.35 | 52.24 | 52.48 | c | 42.93 | 39.40 | a | ----- | z | 11.26 | h | 44.06 | e | ||||
1989 | 9.00 | l | 17.07 | h | 25.67 | g | 33.40 | j | 42.08 | l | 46.86 | a | 53.65 | 50.07 | b | 45.52 | a | 34.61 | d | 25.57 | ----- | z | 42.71 | f | ||
1990 | 12.74 | d | 14.04 | 23.61 | 32.73 | 38.47 | 50.42 | 52.05 | 49.11 | 46.67 | c | 35.32 | c | 23.88 | d | 10.70 | c | 32.48 | ||||||||
1991 | 9.18 | 16.23 | b | 17.21 | c | 25.59 | a | 39.77 | c | 45.31 | a | 51.83 | a | 50.67 | b | 44.50 | 38.24 | ----- | z | ----- | z | 33.85 | b | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.32 | 16.05 | 20.02 | 30.51 | 39.61 | 48.31 | 52.98 | 51.42 | 45.28 | 37.48 | 26.79 | 14.52 | 33.07 | |||||||||||||
S.D. | 2.16 | 2.12 | 2.69 | 2.87 | 1.72 | 1.98 | 1.48 | 1.64 | 1.47 | 2.07 | 2.76 | 5.41 | 0.83 | |||||||||||||
SKEW | -0.96 | 0.59 | 0.46 | -0.81 | 0.50 | -0.43 | 0.47 | -0.03 | -0.62 | 0.66 | 0.34 | 0.65 | 0.00 | |||||||||||||
MAX | 14.00 | 18.93 | 23.61 | 33.07 | 42.69 | 50.62 | 56.12 | 54.05 | 47.15 | 41.81 | 30.34 | 20.71 | 33.66 | |||||||||||||
MIN | 9.18 | 14.04 | 17.21 | 25.59 | 37.03 | 45.15 | 50.81 | 48.98 | 42.24 | 34.61 | 23.88 | 10.70 | 32.48 | |||||||||||||
YRS | 4 | 4 | 4 | 6 | 12 | 15 | 15 | 13 | 15 | 14 | 4 | 3 | 2 |