YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1929 | ----- | z | ----- | z | ----- | z | 35.11 | b | 40.42 | 50.80 | 60.10 | 56.03 | 45.38 | a | 35.63 | a | 15.80 | 4.07 | d | 38.15 | c | |||||
1930 | -8.38 | b | 17.44 | c | 18.78 | d | 33.77 | 42.94 | 54.10 | 61.80 | a | 59.10 | 44.30 | 33.35 | 20.57 | b | 13.55 | b | 32.61 | |||||||
1931 | 12.96 | d | 18.73 | b | 18.84 | 35.52 | a | 41.03 | a | 58.57 | 61.16 | 56.48 | 52.47 | 37.87 | 23.07 | b | 15.68 | 36.03 | ||||||||
1932 | 2.71 | c | 7.46 | c | 9.93 | b | 34.20 | 45.65 | 57.50 | 58.81 | 57.26 | 44.87 | 30.32 | 16.90 | 3.00 | b | 30.72 | |||||||||
1933 | 1.96 | d | -0.72 | c | 20.10 | a | 30.77 | 46.16 | 59.37 | 59.58 | 54.55 | 50.07 | 28.77 | a | 14.13 | 0.16 | 30.41 | |||||||||
1934 | 5.15 | d | 8.65 | b | 13.43 | a | 32.07 | a | 50.86 | b | 54.60 | 59.16 | 53.19 | 41.13 | 37.29 | 24.59 | c | 3.59 | d | 31.98 | ||||||
1935 | -6.07 | c | 16.09 | e | 21.23 | a | 31.00 | 41.68 | 51.27 | 63.68 | 55.32 | 44.10 | 28.94 | 9.68 | b | 3.65 | 30.05 | |||||||||
1936 | -14.37 | d | -18.00 | 15.31 | b | 23.50 | 46.90 | 52.30 | 62.50 | c | 56.26 | 46.97 | 25.45 | b | 15.87 | 7.13 | 26.65 | |||||||||
1937 | -16.45 | b | -5.40 | c | 14.13 | 30.83 | 44.06 | 52.47 | 58.90 | a | 59.68 | 43.93 | 31.10 | b | 15.71 | b | -0.63 | a | 27.36 | |||||||
1938 | -3.84 | 0.70 | a | 21.19 | 29.80 | 41.71 | 49.44 | c | 57.97 | a | 57.53 | a | 49.20 | 39.44 | d | 12.77 | 5.76 | b | 30.14 | |||||||
1939 | 5.43 | c | -11.95 | i | 11.68 | l | 28.07 | 45.77 | 52.45 | a | 60.16 | 51.79 | c | 43.79 | a | 30.37 | d | 20.41 | a | 14.27 | a | 35.25 | b | |||
1940 | -9.38 | b | 9.19 | b | 16.84 | f | 31.54 | b | 43.32 | c | 51.28 | a | 59.83 | a | 57.13 | a | 47.21 | b | 38.90 | 17.45 | a | 9.81 | 32.39 | a | ||
1941 | -1.59 | i | 1.18 | f | 16.77 | e | 37.10 | 49.32 | 57.60 | 60.90 | 57.19 | 47.41 | a | 35.10 | a | 22.50 | 14.28 | b | 39.82 | b | ||||||
1942 | 7.84 | 5.25 | 22.63 | a | 32.41 | a | 41.77 | 53.27 | 56.61 | 56.13 | a | 41.77 | 33.45 | b | 18.23 | d | -5.06 | 30.36 | ||||||||
1943 | -8.41 | d | 0.48 | a | 7.83 | a | 30.52 | a | 39.81 | 54.47 | 60.52 | 55.16 | 42.03 | 32.61 | 19.93 | 9.00 | 28.66 | |||||||||
1944 | 10.77 | -0.22 | b | 10.76 | b | 27.67 | 46.97 | a | 54.93 | 56.35 | 53.71 | 44.93 | 32.03 | 25.67 | 5.00 | a | 30.71 | |||||||||
1945 | 3.90 | 1.15 | a | 20.16 | 26.57 | 34.71 | 48.90 | 55.45 | 53.65 | 41.83 | 29.48 | 15.55 | a | -1.87 | 27.46 | |||||||||||
1946 | -3.03 | a | -7.46 | 24.38 | b | 32.97 | 38.03 | 51.70 | 58.94 | 52.32 | 44.40 | 31.87 | 16.00 | 5.55 | b | 28.81 | ||||||||||
1947 | 6.80 | a | -0.42 | b | 16.45 | 30.00 | 38.84 | 50.40 | 59.13 | 61.58 | 47.57 | 41.77 | 14.97 | 4.00 | 30.92 | |||||||||||
1948 | -7.89 | c | -4.25 | a | 8.55 | 32.50 | ----- | z | 52.83 | 60.87 | a | 57.39 | 51.28 | a | 32.74 | 23.27 | 4.30 | a | 28.33 | a | ||||||
1949 | -5.67 | a | -10.46 | 13.83 | a | 32.14 | a | 44.62 | b | 54.33 | 59.29 | 58.26 | 42.13 | 35.03 | a | 24.70 | 2.42 | 29.22 | ||||||||
1950 | -15.77 | e | -4.64 | f | 11.42 | 25.67 | 40.73 | a | 53.28 | a | 56.55 | 52.77 | 47.90 | 35.45 | 12.43 | -2.67 | d | 28.89 | a | |||||||
1951 | -6.17 | a | 4.36 | f | 3.20 | a | 30.57 | 46.68 | c | 50.31 | a | 57.55 | 54.32 | 44.23 | 33.23 | 10.40 | -0.61 | 29.43 | a | |||||||
1952 | -8.71 | 7.48 | b | 8.21 | c | 35.00 | c | 43.79 | l | 55.76 | i | 58.45 | 55.31 | b | 48.40 | 27.68 | c | 20.00 | a | 9.58 | 26.14 | b | ||||
1953 | 1.00 | b | 6.85 | a | 19.20 | a | 28.30 | 43.84 | 55.53 | 58.84 | 58.70 | a | 44.86 | a | 38.32 | 24.14 | a | 6.83 | a | 32.20 | ||||||
1954 | -10.33 | a | 19.44 | a | 16.19 | 29.07 | a | 37.32 | 53.32 | b | 59.70 | d | 55.43 | a | 45.60 | 33.39 | 23.52 | c | 11.13 | 31.15 | ||||||
1955 | 1.52 | -2.18 | 5.89 | c | 36.21 | f | 47.85 | e | 52.90 | 63.71 | 60.27 | a | 43.50 | 32.48 | 9.53 | -4.35 | 28.28 | a | ||||||||
1956 | -3.35 | -4.00 | 10.29 | 24.50 | b | 42.26 | 57.27 | 56.77 | 56.61 | 41.47 | 35.40 | a | 20.87 | 10.10 | a | 29.02 | ||||||||||
1957 | -6.32 | 4.00 | 16.16 | 30.38 | a | 43.19 | 52.30 | 63.19 | 56.87 | 44.93 | 36.32 | 21.90 | 11.35 | 31.19 | ||||||||||||
1958 | 7.94 | -0.46 | 20.19 | 32.73 | 41.94 | ----- | z | 56.61 | c | 55.89 | c | 45.87 | 32.68 | c | 17.57 | i | 1.20 | a | 29.46 | b | ||||||
1959 | -3.20 | a | -2.04 | 19.06 | 28.30 | 39.67 | d | 56.00 | 57.65 | 57.83 | a | 44.69 | a | 30.55 | 11.43 | 18.65 | 29.88 | |||||||||
1960 | -0.74 | 3.03 | 4.06 | 31.73 | 43.29 | 52.73 | 58.16 | 57.60 | a | 47.43 | 33.77 | 21.93 | 0.00 | 29.42 | ||||||||||||
1961 | 1.37 | a | 10.11 | a | 23.48 | 25.89 | c | 38.77 | 54.53 | 57.00 | 58.84 | 44.59 | a | 33.43 | a | 18.93 | 1.45 | 30.70 | ||||||||
1962 | -4.55 | -0.22 | a | 13.33 | a | 26.70 | 46.32 | 55.03 | 57.42 | e | 58.60 | k | 42.86 | a | 37.69 | b | 25.23 | 7.58 | 27.95 | a | ||||||
1963 | -8.17 | a | -1.37 | a | 18.42 | 32.90 | 42.48 | 57.67 | 60.35 | 57.23 | 48.57 | 43.16 | 24.50 | -0.63 | a | 31.26 | ||||||||||
1964 | 4.90 | 6.52 | 8.06 | 31.72 | a | 46.55 | 54.87 | 62.13 | 54.33 | a | 44.03 | 32.84 | 18.97 | -2.16 | 30.23 | |||||||||||
1965 | -8.67 | a | -6.60 | c | 5.29 | 32.40 | 44.58 | 54.03 | 58.80 | a | 56.65 | 39.79 | a | 37.03 | a | 18.00 | 14.26 | 28.80 | ||||||||
1966 | -14.48 | -4.26 | a | 21.26 | d | 28.47 | 39.90 | a | 54.86 | b | 63.03 | 55.26 | 46.47 | 33.63 | a | 13.07 | a | 4.29 | 28.46 | |||||||
1967 | -0.35 | -6.00 | 16.87 | 28.07 | a | 36.71 | 52.59 | a | 55.93 | a | 54.00 | 46.23 | 32.17 | a | 19.60 | 7.68 | 28.62 | |||||||||
1968 | -1.32 | 1.17 | 21.84 | 31.38 | a | 40.13 | a | 53.53 | 56.70 | a | 54.35 | 46.80 | 34.90 | 22.87 | 2.26 | 30.38 | ||||||||||
1969 | -7.68 | 5.36 | 7.10 | 31.50 | 43.73 | a | 48.07 | a | 57.00 | 58.80 | a | 47.07 | a | 32.10 | 21.97 | a | 8.29 | 29.44 | ||||||||
1970 | -8.32 | 1.29 | 10.19 | 28.23 | 41.17 | a | 56.93 | 59.16 | 56.50 | a | 46.80 | 35.35 | 19.50 | 1.00 | 28.98 | |||||||||||
1971 | -7.77 | 2.04 | 17.65 | 32.03 | 40.81 | 57.73 | 52.97 | a | 54.71 | 47.63 | 39.48 | 20.82 | b | 2.03 | 30.01 | |||||||||||
1972 | -6.77 | -3.97 | 15.40 | a | 32.57 | 49.40 | a | 54.27 | 57.87 | 58.03 | 42.50 | 30.60 | a | 19.90 | -4.23 | 28.80 | ||||||||||
1973 | 2.81 | 7.57 | 28.71 | 32.13 | 43.32 | 54.82 | b | ----- | z | 60.90 | a | ----- | z | 39.07 | c | 21.10 | 3.84 | 29.43 | b | |||||||
1974 | -4.70 | a | 0.71 | 15.97 | a | 32.60 | 42.35 | 52.73 | 61.97 | 54.55 | 40.53 | 33.55 | b | 21.24 | a | 13.13 | a | 30.39 | ||||||||
1975 | 1.68 | -0.42 | b | 8.43 | a | 28.73 | d | 46.32 | 55.93 | a | 65.57 | a | 57.16 | 44.66 | a | 39.20 | a | 26.07 | a | 9.19 | 31.88 | |||||
1976 | 1.33 | a | 14.63 | b | 16.10 | a | 36.60 | 43.42 | 57.69 | a | 59.97 | a | 59.52 | 44.27 | 29.00 | 14.60 | -1.55 | b | 31.30 | |||||||
1977 | -10.71 | 6.77 | f | 20.27 | a | 35.73 | 47.55 | b | 49.87 | 57.90 | 49.33 | a | 45.72 | a | 33.50 | a | 16.38 | a | 2.16 | 31.61 | a | |||||
1978 | -11.81 | -4.79 | 14.52 | 32.80 | 45.50 | a | 52.48 | a | 57.81 | 53.93 | a | 49.63 | 28.55 | 12.93 | -0.52 | b | 27.59 | |||||||||
1979 | -12.45 | b | -11.79 | 10.29 | 27.17 | 39.06 | 51.47 | 59.71 | 54.90 | 46.43 | 32.47 | a | 18.62 | a | 11.73 | a | 27.30 | |||||||||
1980 | 0.03 | 0.14 | 10.00 | b | 36.50 | 45.93 | a | 54.43 | 58.10 | a | 53.77 | 43.40 | 32.00 | 24.13 | 3.55 | 30.17 | ||||||||||
1981 | 0.90 | 9.79 | 22.06 | 33.90 | 43.00 | 53.60 | 60.10 | 57.35 | 45.27 | 34.74 | 24.70 | 1.61 | 32.25 | |||||||||||||
1982 | -18.00 | -2.00 | 16.59 | b | 30.28 | a | 47.39 | 49.27 | 59.94 | 55.60 | a | 45.10 | a | 34.60 | a | 16.07 | 13.10 | 28.99 | ||||||||
1983 | 7.52 | 11.30 | a | 23.42 | 30.30 | 39.04 | c | 54.50 | 63.48 | 61.65 | 46.77 | 35.55 | 25.47 | -9.81 | e | 32.43 | ||||||||||
1984 | 0.90 | b | 18.29 | a | 11.71 | 33.83 | 41.65 | 55.13 | 57.77 | 58.81 | 41.53 | 36.13 | a | 19.18 | b | -0.23 | 31.23 | |||||||||
1985 | -7.62 | b | -1.50 | d | 23.47 | a | 33.33 | 47.94 | 50.48 | a | 57.55 | 53.55 | 46.07 | a | 31.48 | 7.89 | b | -5.65 | 28.08 | |||||||
1986 | 4.42 | 1.52 | a | 20.53 | a | 33.14 | a | 46.53 | a | 56.23 | 60.03 | 52.70 | a | 46.59 | a | 29.31 | b | 14.66 | a | 11.58 | 31.44 | |||||
1987 | 7.23 | a | 19.19 | a | 21.87 | 36.47 | 47.67 | a | 55.80 | 60.21 | c | 53.76 | b | 46.41 | c | 29.71 | c | 22.78 | c | 14.56 | d | 34.64 | ||||
1988 | -4.56 | d | -2.35 | f | 19.23 | e | 28.62 | a | 47.76 | b | 57.53 | 58.37 | a | 56.00 | a | 44.59 | a | 28.90 | 17.40 | 5.03 | a | 32.63 | a | |||
1989 | -0.48 | -8.68 | 10.83 | a | 28.93 | 43.90 | 51.53 | 60.23 | a | 55.26 | 43.13 | 31.06 | 14.13 | -5.10 | a | 27.06 | ||||||||||
1990 | 11.03 | 4.29 | 20.10 | a | 27.59 | a | 40.90 | 54.03 | 56.42 | 54.19 | 47.30 | 29.77 | 20.43 | 0.57 | a | 30.55 | ||||||||||
1991 | -3.16 | 9.85 | a | 17.61 | 33.23 | 48.23 | 58.50 | 59.39 | 59.00 | a | 45.37 | 29.87 | 13.14 | a | 9.81 | e | 31.74 | |||||||||
1992 | 8.19 | j | 15.50 | i | 21.96 | h | 29.00 | f | 44.52 | d | 51.14 | b | 53.13 | 51.41 | b | 42.30 | c | 31.79 | c | 20.14 | b | 4.73 | i | 42.06 | e | |
1993 | -3.23 | e | 0.46 | d | 13.38 | b | 30.62 | f | 43.74 | d | 51.86 | a | 57.64 | c | 56.73 | e | 41.35 | g | ----- | z | ----- | z | ----- | z | 31.51 | e |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -2.75 | 2.51 | 15.61 | 31.10 | 43.45 | 53.80 | 59.10 | 56.10 | 45.30 | 33.49 | 18.70 | 4.73 | 30.16 | |||||||||||||
S.D. | 7.26 | 8.15 | 5.76 | 3.09 | 3.46 | 2.63 | 2.42 | 2.50 | 2.57 | 3.59 | 4.58 | 6.23 | 1.87 | |||||||||||||
SKEW | 0.05 | 0.27 | -0.22 | -0.21 | -0.15 | 0.05 | 0.15 | 0.00 | 0.27 | 0.41 | -0.36 | 0.10 | 0.56 | |||||||||||||
MAX | 12.96 | 19.44 | 28.71 | 37.10 | 50.86 | 59.37 | 65.57 | 61.65 | 52.47 | 43.16 | 26.07 | 18.65 | 36.03 | |||||||||||||
MIN | -18.00 | -18.00 | 3.20 | 23.50 | 34.71 | 48.07 | 52.97 | 49.33 | 39.79 | 25.45 | 7.89 | -9.81 | 26.65 | |||||||||||||
YRS | 62 | 57 | 61 | 62 | 63 | 63 | 64 | 64 | 63 | 64 | 63 | 63 | 49 |