YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 50.85 | d | 41.68 | 29.03 | 19.16 | 35.18 | h | |||
1964 | 14.68 | 13.21 | 23.39 | 29.77 | 41.84 | 48.73 | 56.68 | 53.42 | 47.47 | 38.13 | 26.17 | 20.55 | 34.50 | |||||||||||||
1965 | 22.39 | 19.46 | 24.19 | 31.62 | a | 37.68 | 49.00 | 55.68 | 53.00 | 45.97 | 37.19 | 31.47 | 22.42 | 35.84 | ||||||||||||
1966 | 14.81 | 16.21 | 25.94 | 33.83 | 44.06 | 50.43 | 58.55 | 54.45 | 48.27 | 37.65 | 30.30 | 18.42 | 36.08 | |||||||||||||
1967 | 16.16 | 22.04 | 30.29 | 31.63 | 39.52 | 48.90 | 56.97 | 52.97 | a | 46.97 | 36.10 | 29.83 | 16.32 | 35.64 | ||||||||||||
1968 | 16.23 | 27.34 | 26.45 | 29.69 | a | 39.26 | 50.47 | 55.10 | 50.48 | 44.70 | 36.71 | 24.50 | 15.71 | 34.72 | ||||||||||||
1969 | 25.06 | 21.04 | 21.63 | a | 34.03 | 42.06 | 47.73 | 57.32 | 57.06 | 49.47 | 34.65 | 25.77 | 24.00 | 36.65 | ||||||||||||
1970 | 18.71 | 24.00 | 24.65 | 27.93 | 41.77 | 48.60 | 56.39 | 55.94 | 45.83 | 33.42 | 27.67 | 19.26 | 35.35 | |||||||||||||
1971 | 17.77 | 20.57 | 25.90 | 30.93 | 38.55 | 50.17 | 57.00 | a | 53.03 | 45.87 | 34.32 | 24.93 | 19.29 | 34.86 | ||||||||||||
1972 | 18.90 | 22.93 | 31.52 | 33.57 | 40.13 | 49.73 | 57.10 | 53.97 | 47.67 | 41.00 | 24.77 | 18.87 | 36.68 | |||||||||||||
1973 | 14.77 | a | 23.18 | 25.77 | 29.17 | 40.74 | 48.67 | 54.87 | 53.52 | 46.33 | 35.77 | 28.87 | 20.71 | 35.20 | ||||||||||||
1974 | 18.42 | 18.61 | 29.61 | 31.43 | 43.10 | 53.77 | 55.13 | 52.65 | 47.03 | 39.94 | 26.47 | 15.55 | 35.97 | |||||||||||||
1975 | 18.39 | 21.14 | 24.61 | 28.37 | 38.13 | 47.70 | 55.97 | a | 53.23 | 47.17 | 35.84 | 24.20 | 19.84 | 34.55 | ||||||||||||
1976 | 17.58 | 25.31 | 25.06 | 32.23 | 41.71 | 48.77 | 55.68 | 53.61 | 47.63 | 34.55 | 22.63 | 16.90 | 35.14 | |||||||||||||
1977 | 16.06 | 21.50 | 23.16 | 33.93 | 40.35 | 52.40 | 55.71 | 55.68 | 50.60 | 39.16 | 29.23 | 26.94 | 37.06 | |||||||||||||
1978 | 22.84 | 24.21 | 31.00 | 33.90 | 39.87 | 51.93 | 55.48 | 53.13 | 47.33 | 40.52 | 30.67 | 17.39 | 37.36 | |||||||||||||
1979 | 14.71 | 19.46 | 26.26 | 33.80 | 41.19 | 49.90 | 56.74 | 52.23 | a | 49.30 | 39.84 | 22.70 | 20.81 | 35.58 | ||||||||||||
1980 | 25.45 | 25.55 | 25.26 | 31.73 | 37.45 | 50.37 | 56.74 | 55.19 | 49.00 | 34.39 | 27.07 | 25.61 | 36.98 | |||||||||||||
1981 | 23.58 | 22.71 | 26.71 | 35.87 | 42.16 | 53.47 | 56.55 | 54.35 | 48.53 | 37.39 | 29.30 | 22.55 | 37.76 | |||||||||||||
1982 | 20.13 | 22.04 | 28.39 | 33.97 | 39.35 | 48.70 | 56.06 | 55.32 | 50.03 | 34.03 | 28.33 | 19.63 | a | 36.33 | ||||||||||||
1983 | 20.16 | 24.36 | 28.77 | 28.34 | a | 39.13 | 48.53 | 54.58 | 55.23 | 51.90 | 38.68 | 26.43 | 24.71 | 36.74 | ||||||||||||
1984 | 17.45 | 20.07 | 25.94 | 27.57 | 44.71 | 50.73 | 56.42 | 55.03 | 49.14 | a | 34.10 | 27.07 | 23.35 | 35.96 | ||||||||||||
1985 | 18.10 | 19.39 | 28.65 | 35.57 | 42.68 | 50.93 | 55.97 | b | 54.68 | 44.97 | a | 37.63 | a | 26.77 | 21.74 | 36.42 | ||||||||||
1986 | 24.13 | 26.89 | a | 30.71 | 35.47 | 39.61 | 51.80 | 55.39 | 55.17 | a | 44.87 | 34.65 | 26.80 | 21.87 | 37.28 | |||||||||||
1987 | 17.19 | 21.14 | 22.55 | 33.97 | 40.74 | 49.97 | 53.45 | 53.03 | 45.87 | 39.53 | a | 25.00 | 18.32 | 35.06 | ||||||||||||
1988 | 16.61 | 23.55 | 24.10 | 32.43 | 41.84 | 51.37 | 56.03 | 55.10 | 45.27 | 40.45 | 27.40 | 17.52 | 35.97 | |||||||||||||
1989 | 16.55 | 24.96 | 30.97 | 38.53 | 43.55 | 49.63 | 56.87 | 52.94 | 47.00 | 35.65 | 25.83 | 18.35 | 36.74 | |||||||||||||
1990 | 16.10 | 19.96 | 28.94 | 36.57 | 40.10 | 55.20 | 55.84 | 52.61 | 50.37 | 36.13 | 26.73 | 14.65 | 36.10 | |||||||||||||
1991 | 17.48 | 24.86 | 24.87 | 30.30 | 39.16 | 47.67 | 55.06 | 54.39 | 47.47 | 38.68 | 23.73 | 13.97 | 34.80 | |||||||||||||
1992 | ----- | z | 20.00 | 22.63 | a | 29.20 | 39.23 | 41.43 | 48.19 | 48.29 | 40.77 | ----- | z | 16.66 | a | ----- | z | 34.04 | c | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.59 | 21.92 | 26.48 | 32.25 | 40.68 | 49.89 | 55.78 | 53.78 | 47.45 | 37.16 | 26.54 | 19.81 | 35.98 | |||||||||||||
S.D. | 3.22 | 3.11 | 2.85 | 2.83 | 1.89 | 2.48 | 1.76 | 1.72 | 2.29 | 2.42 | 2.96 | 3.27 | 0.92 | |||||||||||||
SKEW | 0.81 | -0.59 | 0.27 | 0.12 | 0.30 | -0.85 | -2.76 | -1.01 | -0.45 | 0.19 | -1.07 | 0.28 | 0.06 | |||||||||||||
MAX | 25.45 | 27.34 | 31.52 | 38.53 | 44.71 | 55.20 | 58.55 | 57.06 | 51.90 | 41.68 | 31.47 | 26.94 | 37.76 | |||||||||||||
MIN | 14.68 | 13.21 | 21.63 | 27.57 | 37.45 | 41.43 | 48.19 | 48.29 | 40.77 | 33.42 | 16.66 | 13.97 | 34.50 | |||||||||||||
YRS | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 30 | 29 | 28 |