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 | 11.82 | b | -5.29 | 3.27 | j | |
1950 | -1.03 | -0.54 | 2.52 | 19.33 | 22.48 | 28.77 | 36.00 | 30.97 | 28.83 | 23.48 | 9.03 | 2.06 | 16.83 | |||||||||||||
1951 | -2.90 | -5.54 | 3.53 | a | 14.97 | 24.68 | 26.57 | 35.81 | 35.74 | 23.70 | 20.85 | e | ----- | z | ----- | z | 17.74 | b | ||||||||
1952 | ----- | z | ----- | z | ----- | z | 15.40 | y | 24.16 | 30.87 | 35.06 | 37.81 | 27.40 | 14.65 | 9.86 | p | ----- | z | 28.32 | f | ||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 23.77 | 31.77 | 37.87 | 33.61 | 24.67 | 19.03 | 11.44 | u | ----- | z | 28.45 | f | ||||||
1954 | ----- | z | ----- | z | ----- | z | 23.25 | r | 27.39 | 30.30 | 39.35 | 35.29 | 31.43 | 24.45 | ----- | z | ----- | z | 31.37 | f | ||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 24.10 | 27.70 | 34.71 | 38.81 | 28.43 | 19.45 | ----- | z | ----- | z | 28.87 | f | ||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 25.55 | 31.27 | 34.42 | 32.13 | 24.70 | 17.06 | ----- | z | ----- | z | 27.52 | f | ||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 22.75 | g | 31.03 | 38.87 | 38.52 | 25.13 | 22.16 | 14.33 | u | ----- | z | 31.14 | g | |||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | 26.33 | g | 30.67 | 32.03 | 36.29 | 29.33 | 16.81 | ----- | z | ----- | z | 29.03 | g | |||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | 25.29 | 32.33 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.81 | 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 | 22.86 | i | 12.29 | f | -5.78 | h | ----- | z |
1986 | -4.50 | i | 5.00 | g | 6.36 | f | 16.70 | c | 23.88 | g | ----- | z | 36.20 | a | 38.50 | u | 29.11 | c | 19.42 | e | 9.00 | i | -6.83 | h | 25.36 | h |
1987 | -4.21 | g | -3.43 | g | 1.11 | l | 18.67 | r | 28.38 | b | 33.61 | b | 39.15 | e | 48.67 | d | 29.23 | d | 20.69 | b | 9.45 | j | -0.78 | h | 33.29 | f |
1988 | -12.75 | k | -4.50 | g | -0.92 | g | 18.32 | b | 24.87 | 32.63 | 35.77 | 37.76 | b | 26.53 | 20.70 | a | ----- | z | -7.68 | f | 28.08 | e | ||||
1989 | -11.59 | i | 1.50 | f | 9.36 | f | 19.05 | h | 26.05 | i | 28.86 | a | 36.13 | 34.00 | b | 27.34 | a | 18.28 | b | 8.83 | ----- | z | 25.57 | f | ||
1990 | -5.79 | b | -4.75 | 7.71 | 18.53 | 23.55 | 31.33 | 37.77 | 33.68 | 31.56 | c | 19.17 | a | 6.64 | b | -7.52 | b | 15.99 | ||||||||
1991 | -12.10 | -6.67 | a | 1.43 | c | 9.31 | a | 23.62 | b | 28.31 | a | 34.30 | a | 32.79 | b | 26.00 | 19.77 | ----- | z | ----- | z | 15.68 | b | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -5.46 | -4.37 | 3.80 | 16.19 | 24.82 | 30.40 | 36.23 | 36.15 | 27.56 | 19.73 | 9.08 | -3.58 | 16.41 | |||||||||||||
S.D. | 4.84 | 2.68 | 2.75 | 3.71 | 1.67 | 1.97 | 2.05 | 4.36 | 2.43 | 2.54 | 2.12 | 5.01 | 0.59 | |||||||||||||
SKEW | -0.64 | 0.86 | 0.83 | -1.17 | 0.90 | -0.36 | -0.09 | 1.66 | 0.07 | -0.02 | 0.24 | 0.55 | 0.00 | |||||||||||||
MAX | -1.03 | -0.54 | 7.71 | 19.33 | 28.38 | 33.61 | 39.35 | 48.67 | 31.56 | 24.45 | 11.82 | 2.06 | 16.83 | |||||||||||||
MIN | -12.10 | -6.67 | 1.43 | 9.31 | 22.48 | 26.57 | 32.03 | 30.97 | 23.70 | 14.65 | 6.64 | -7.52 | 15.99 | |||||||||||||
YRS | 4 | 4 | 4 | 6 | 12 | 15 | 15 | 14 | 15 | 15 | 4 | 3 | 2 |