YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 41.60 | k | 42.80 | 48.21 | l | 51.42 | 45.28 | a | 30.29 | 18.20 | 12.42 | 33.40 | f | |||||
1937 | -2.16 | 5.00 | 8.42 | 27.40 | 37.52 | 46.77 | 52.35 | 52.32 | 41.50 | 30.29 | 20.60 | 6.42 | 27.20 | |||||||||||||
1938 | 2.32 | 7.71 | 17.10 | 28.63 | 38.84 | 47.57 | 54.13 | a | 54.23 | 42.27 | 38.40 | a | 26.45 | a | 15.00 | 31.05 | ||||||||||
1939 | 7.52 | -2.82 | 10.00 | a | 23.50 | 40.42 | 51.17 | 51.23 | 49.97 | 42.53 | 32.35 | 20.63 | 17.77 | 28.69 | ||||||||||||
1940 | 0.42 | 8.83 | 7.90 | 21.97 | 35.35 | 47.57 | 50.29 | 50.03 | 43.83 | 34.81 | 21.53 | 12.90 | 27.95 | |||||||||||||
1941 | 7.32 | 5.11 | 6.19 | 30.34 | a | 42.29 | 49.23 | 53.00 | 49.00 | 47.07 | 34.81 | 25.60 | 19.16 | 30.76 | ||||||||||||
1942 | 7.63 | a | 6.96 | a | 20.23 | 30.73 | 36.84 | 47.37 | 50.55 | 50.06 | 40.70 | 31.26 | 19.03 | 8.81 | 29.18 | |||||||||||
1943 | 0.10 | 2.21 | 4.74 | 23.00 | 36.97 | 50.77 | 53.65 | 51.94 | 37.53 | 32.42 | 19.67 | 8.81 | 26.82 | |||||||||||||
1944 | 12.23 | 7.24 | 10.74 | 21.43 | 40.71 | 49.30 | 50.10 | 48.90 | 44.80 | 30.81 | 28.00 | 7.39 | 29.30 | |||||||||||||
1945 | -0.81 | 1.14 | 20.32 | 29.73 | 38.55 | 44.07 | 49.77 | 49.61 | 42.37 | 30.77 | 25.24 | a | 7.29 | 28.17 | ||||||||||||
1946 | 6.97 | 3.32 | 25.00 | 29.03 | 35.90 | 47.50 | 50.81 | 48.45 | 41.47 | 35.26 | 24.10 | 11.35 | 29.93 | |||||||||||||
1947 | 6.13 | 6.00 | b | 13.39 | 24.80 | 36.13 | 45.00 | b | 50.13 | 54.03 | 42.34 | a | 39.14 | c | 18.83 | a | 7.60 | a | 28.63 | |||||||
1948 | -10.97 | -2.90 | 6.29 | 27.83 | 33.10 | 44.73 | 51.93 | a | 50.65 | 41.10 | 28.65 | 27.93 | 6.19 | 25.38 | ||||||||||||
1949 | 6.87 | 1.00 | 13.52 | 27.07 | 35.03 | 48.57 | 52.35 | 50.32 | 38.37 | 32.84 | 21.10 | 8.71 | 27.98 | |||||||||||||
1950 | -3.42 | -1.39 | 6.23 | 20.03 | 33.94 | 44.93 | 46.94 | 41.71 | 41.40 | 34.29 | 16.03 | 1.65 | 23.53 | |||||||||||||
1951 | -3.37 | a | 1.36 | 13.79 | c | 27.50 | 39.55 | 43.23 | 49.61 | 46.81 | 39.40 | 32.71 | 11.77 | 7.19 | 25.80 | |||||||||||
1952 | 1.58 | 3.48 | 9.00 | 26.37 | 35.48 | 46.62 | a | 52.37 | a | 46.55 | 39.38 | a | 23.20 | a | 21.20 | 17.23 | 26.87 | |||||||||
1953 | 7.32 | 4.00 | 17.03 | 24.80 | 35.58 | 48.00 | 50.48 | 50.97 | 42.07 | 33.03 | 24.17 | 11.71 | 29.10 | |||||||||||||
1954 | -1.03 | 11.50 | 8.61 | 25.57 | 31.13 | 48.73 | 48.55 | 45.84 | 40.77 | 31.48 | 23.93 | 7.00 | 26.84 | |||||||||||||
1955 | -0.71 | -1.61 | 6.52 | 29.77 | 36.90 | 45.90 | 53.52 | 51.84 | 39.13 | 34.39 | 17.43 | 3.16 | 26.35 | |||||||||||||
1956 | 4.55 | 1.83 | 6.03 | 24.40 | 34.00 | 48.10 | 48.48 | 50.35 | 38.60 | 33.23 | 21.10 | 8.61 | 26.61 | |||||||||||||
1957 | -6.29 | 1.39 | 11.29 | 26.37 | 35.55 | 46.50 | 51.29 | 48.03 | 38.73 | 30.55 | 21.03 | 7.94 | 26.03 | |||||||||||||
1958 | 7.55 | 1.14 | 15.58 | 25.90 | 32.71 | 38.77 | 49.97 | 47.55 | 41.43 | 35.39 | 21.83 | -6.45 | 25.95 | |||||||||||||
1959 | -9.52 | -8.29 | 7.43 | a | 26.07 | 39.48 | 47.73 | 49.71 | 55.29 | 43.57 | 31.77 | 11.00 | 14.07 | b | 25.69 | |||||||||||
1960 | 1.97 | 2.45 | -4.87 | 27.27 | 39.16 | 43.70 | 48.45 | 51.32 | 43.23 | 31.68 | 24.53 | 4.13 | 26.09 | |||||||||||||
1961 | -1.61 | 6.43 | 14.23 | 25.90 | 31.90 | 42.93 | 51.06 | 48.13 | 43.17 | 33.81 | 20.50 | 3.71 | 26.68 | |||||||||||||
1962 | -1.52 | -7.54 | 13.35 | 25.67 | 42.23 | 44.93 | 48.26 | 47.84 | 39.07 | 34.84 | 22.43 | 6.71 | 26.36 | |||||||||||||
1963 | -8.19 | -9.64 | 9.35 | 25.23 | 33.45 | 46.87 | 50.45 | 46.87 | 39.07 | 35.42 | 25.20 | 0.84 | 24.58 | |||||||||||||
1964 | 5.81 | -3.55 | 6.90 | 25.33 | 39.42 | 43.37 | 51.29 | 45.45 | 40.00 | 28.26 | 20.87 | -0.10 | 25.25 | |||||||||||||
1965 | -5.23 | -9.50 | 4.16 | 23.47 | 39.67 | a | 41.47 | 45.45 | 47.58 | 40.10 | 33.65 | 22.50 | 14.32 | 24.80 | ||||||||||||
1966 | -5.90 | 6.68 | 17.77 | 25.00 | 32.42 | 47.43 | 52.84 | 49.29 | 40.23 | 29.61 | 21.77 | 8.77 | 27.16 | |||||||||||||
1967 | 1.06 | -9.07 | 8.55 | 25.43 | 30.00 | 47.47 | 48.13 | 44.26 | 39.30 | 31.55 | 18.57 | 7.65 | 24.41 | |||||||||||||
1968 | -0.77 | -0.38 | 16.26 | 28.43 | 35.77 | 48.57 | 50.52 | 49.35 | 46.60 | 36.58 | 24.57 | 7.19 | 28.56 | |||||||||||||
1969 | 4.81 | 0.64 | 5.35 | 28.30 | 36.39 | 43.13 | 50.45 | 51.03 | 41.57 | 31.81 | 20.67 | 10.32 | 27.04 | |||||||||||||
1970 | -5.65 | -6.21 | 8.00 | 28.00 | 37.90 | 46.60 | 53.10 | 48.10 | 43.83 | 34.35 | 22.43 | 6.16 | 26.39 | |||||||||||||
1971 | -11.29 | -1.04 | 8.84 | 23.00 | 33.55 | 49.20 | 47.26 | 46.58 | 46.30 | 42.45 | 23.60 | 8.97 | 26.45 | |||||||||||||
1972 | -12.00 | -5.93 | 6.90 | 20.87 | 39.29 | 45.30 | 52.23 | 50.77 | 40.10 | 30.45 | 22.83 | 3.58 | 24.53 | |||||||||||||
1973 | 3.84 | 1.68 | 24.29 | 28.27 | 37.26 | 48.93 | 51.87 | 53.65 | 42.63 | 37.84 | 23.63 | 4.81 | 29.89 | |||||||||||||
1974 | 0.61 | -6.82 | 14.71 | 27.97 | 35.47 | a | 43.67 | 52.61 | 50.39 | 37.97 | 31.77 | 23.43 | 13.23 | 27.08 | ||||||||||||
1975 | -1.03 | 4.11 | 6.74 | 20.43 | 42.52 | 50.97 | 54.48 | 51.32 | 40.03 | 35.03 | 24.23 | 6.00 | 27.90 | |||||||||||||
1976 | -5.42 | 8.90 | 12.48 | 29.40 | 35.71 | 48.87 | 50.65 | 48.19 | 37.57 | 28.13 | 13.53 | -7.39 | 25.05 | |||||||||||||
1977 | -10.58 | 3.25 | 19.58 | 29.50 | 44.90 | 45.90 | 55.26 | 47.42 | 47.27 | 31.48 | 22.27 | 8.00 | 28.69 | |||||||||||||
1978 | -2.35 | -5.89 | 7.00 | 25.77 | 40.06 | 46.83 | 51.97 | 52.32 | 47.83 | 33.87 | 20.13 | 2.03 | 26.63 | |||||||||||||
1979 | -7.65 | -9.61 | 15.32 | 23.90 | 36.77 | 46.60 | 52.00 | 50.36 | c | 43.47 | 33.90 | 21.00 | 14.58 | 26.72 | ||||||||||||
1980 | 1.10 | -3.38 | 9.06 | ----- | z | 40.00 | 44.47 | 52.65 | 54.13 | a | 43.70 | 30.81 | 23.87 | 6.77 | 27.56 | a | ||||||||||
1981 | -6.42 | 8.14 | 18.68 | 29.33 | 36.10 | 49.41 | a | 52.19 | 53.32 | 43.10 | 31.81 | 27.23 | 9.03 | 29.33 | ||||||||||||
1982 | -10.97 | a | -7.04 | a | 12.61 | 24.60 | 44.93 | a | 41.37 | 54.81 | 48.84 | 43.37 | 35.19 | 21.53 | 17.00 | 27.19 | ||||||||||
1983 | 5.58 | 12.54 | 19.81 | 27.17 | 35.23 | 47.87 | 58.32 | 56.19 | 45.83 | 33.06 | 25.10 | -3.26 | 30.29 | |||||||||||||
1984 | -8.84 | 14.00 | 7.03 | 30.93 | 36.39 | 51.53 | 51.81 | 55.84 | 41.77 | 38.74 | 20.93 | 8.68 | 29.07 | |||||||||||||
1985 | -3.80 | a | -1.32 | 17.29 | 30.57 | 42.06 | 45.10 | 50.26 | 50.35 | 43.93 | 32.16 | 16.73 | -4.06 | 26.61 | ||||||||||||
1986 | -1.29 | -2.64 | 11.84 | ----- | z | 42.10 | 44.83 | 54.97 | 47.58 | 44.43 | 31.77 | 15.73 | 11.74 | 27.37 | a | |||||||||||
1987 | 5.81 | 7.25 | 15.55 | 28.63 | 40.29 | 51.83 | 56.23 | 52.32 | 43.37 | 28.68 | 23.57 | 15.68 | 30.77 | |||||||||||||
1988 | -4.26 | -5.62 | 11.10 | a | 27.00 | 38.39 | 48.83 | 54.68 | 55.29 | 43.40 | 28.74 | 26.87 | 4.58 | 27.42 | ||||||||||||
1989 | 3.48 | -8.57 | 2.61 | 25.35 | g | 37.95 | j | 48.05 | h | 52.29 | j | 50.23 | i | 40.73 | h | 34.05 | j | 16.09 | h | -4.41 | i | -0.82 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -0.76 | 0.65 | 11.43 | 26.35 | 37.33 | 46.58 | 51.45 | 50.00 | 42.04 | 32.82 | 21.64 | 7.77 | 27.29 | |||||||||||||
S.D. | 6.07 | 6.22 | 5.80 | 2.78 | 3.40 | 2.78 | 2.44 | 3.01 | 2.62 | 3.22 | 3.70 | 5.82 | 1.81 | |||||||||||||
SKEW | -0.08 | 0.04 | 0.14 | -0.41 | 0.16 | -0.36 | 0.17 | -0.06 | 0.27 | 0.22 | -0.81 | -0.44 | 0.23 | |||||||||||||
MAX | 12.23 | 14.00 | 25.00 | 30.93 | 44.93 | 51.83 | 58.32 | 56.19 | 47.83 | 42.45 | 28.00 | 19.16 | 31.05 | |||||||||||||
MIN | -12.00 | -9.64 | -4.87 | 20.03 | 30.00 | 38.77 | 45.45 | 41.71 | 37.53 | 23.20 | 11.00 | -7.39 | 23.53 | |||||||||||||
YRS | 53 | 53 | 53 | 50 | 52 | 53 | 52 | 53 | 53 | 53 | 53 | 53 | 50 |