YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | 31.82 | s | 42.37 | a | 48.17 | 56.35 | 53.73 | a | 41.63 | 31.00 | 13.30 | -3.13 | 35.43 | d | ||||||
1938 | -4.03 | a | -6.07 | 21.47 | a | 25.43 | 38.87 | 48.72 | a | 54.26 | 52.48 | 45.13 | 35.57 | c | 9.28 | a | 6.23 | a | 27.28 | |||||||
1939 | -1.29 | -16.00 | 9.70 | a | 32.67 | 44.35 | 46.70 | 56.29 | 53.42 | 46.70 | 28.23 | 18.63 | 14.00 | 27.78 | ||||||||||||
1940 | -8.58 | 4.76 | 6.07 | a | 25.83 | 39.39 | 47.83 | 54.00 | b | 53.29 | 46.21 | a | 37.26 | 13.73 | 4.48 | b | 27.02 | |||||||||
1941 | -2.61 | -0.70 | a | 10.45 | 32.83 | 44.06 | 58.17 | 55.87 | 52.84 | 44.83 | 29.48 | b | 18.50 | 9.24 | b | 29.41 | ||||||||||
1942 | 4.71 | -0.50 | 19.13 | 31.40 | 36.97 | 47.14 | a | 50.94 | 52.00 | a | 38.83 | 31.10 | 12.23 | -5.62 | b | 26.53 | ||||||||||
1943 | -15.69 | b | 1.30 | a | 5.55 | 27.47 | 35.58 | 47.60 | 55.90 | 50.94 | 39.83 | 30.50 | a | 18.40 | 6.00 | 25.28 | ||||||||||
1944 | 7.29 | -3.18 | a | 4.24 | b | 26.30 | 43.97 | ----- | z | 52.55 | 50.81 | 43.07 | ----- | z | ----- | z | ----- | z | 28.13 | d | ||||||
1945 | 0.58 | -0.07 | a | 20.13 | 24.53 | 32.35 | 46.63 | 52.10 | 50.26 | 38.93 | 25.65 | 7.45 | a | -5.84 | 24.39 | |||||||||||
1946 | -6.80 | a | -7.64 | 19.50 | a | 33.04 | d | 37.26 | 45.83 | a | 54.55 | 49.67 | a | 41.27 | 25.55 | 10.34 | a | -0.32 | 25.19 | |||||||
1947 | -0.96 | c | -5.21 | 11.59 | b | 27.27 | ----- | z | 47.47 | 56.06 | 56.16 | 40.03 | 37.52 | 11.86 | a | 0.03 | a | 25.62 | a | |||||||
1948 | ----- | z | ----- | z | 14.54 | r | 25.33 | 39.74 | 47.63 | 54.84 | 53.81 | 46.90 | 31.00 | d | 15.50 | -3.52 | 34.58 | c | ||||||||
1949 | -12.10 | -15.63 | a | ----- | z | 29.63 | 39.33 | a | 49.20 | 52.61 | 53.33 | a | 39.27 | 29.33 | a | 23.00 | b | -3.58 | 25.86 | a | ||||||
1950 | -22.97 | a | -6.82 | 8.07 | b | 23.46 | b | 37.32 | 46.70 | c | 51.66 | b | 49.32 | 43.50 | 32.57 | a | 10.07 | a | -3.28 | b | 22.47 | |||||
1951 | -12.76 | b | -3.56 | a | 0.81 | 26.38 | a | 40.47 | a | 46.17 | 52.28 | b | 51.83 | a | 40.76 | a | 28.89 | c | 7.96 | b | -4.06 | 22.93 | ||||
1952 | -8.45 | 7.62 | 10.68 | 33.82 | b | 40.07 | a | 50.63 | 53.39 | 52.29 | 44.43 | 27.77 | a | 18.73 | 8.71 | 28.31 | ||||||||||
1953 | -0.90 | 5.96 | 12.90 | 24.17 | 40.52 | 50.60 | 53.55 | 54.32 | 41.27 | 35.53 | a | 23.37 | 5.71 | 28.92 | ||||||||||||
1954 | -17.06 | 15.64 | 13.00 | 24.60 | 35.58 | 50.73 | 56.68 | 53.81 | 43.77 | 31.77 | 24.13 | 14.58 | 28.94 | |||||||||||||
1955 | -2.16 | -4.11 | a | 1.33 | a | 35.40 | 43.90 | 50.77 | 57.06 | 55.10 | 40.37 | 32.06 | 5.33 | -8.10 | 25.58 | |||||||||||
1956 | -5.87 | a | -6.52 | 5.48 | 22.70 | 39.39 | 55.11 | b | 52.81 | 52.84 | 38.77 | 32.16 | 19.07 | 2.81 | 25.73 | |||||||||||
1957 | -10.53 | a | -0.69 | b | 16.07 | d | 28.17 | 39.84 | 46.90 | 58.71 | 53.52 | 41.72 | a | 33.43 | a | 18.90 | 9.06 | 27.93 | ||||||||
1958 | 5.45 | -1.89 | 17.97 | 29.17 | 39.77 | 43.97 | 52.29 | 52.52 | 42.80 | 31.87 | 15.63 | -4.66 | b | 27.07 | ||||||||||||
1959 | -10.53 | a | -7.39 | 20.29 | 25.97 | 37.45 | 52.27 | 53.65 | 54.13 | 42.76 | a | 27.68 | 10.83 | 13.68 | 26.73 | |||||||||||
1960 | -7.30 | a | -2.38 | 3.16 | 28.33 | 39.35 | 48.21 | a | 55.74 | 53.84 | 43.64 | b | 30.73 | a | 15.83 | 0.17 | a | 25.78 | ||||||||
1961 | -2.73 | a | 3.15 | a | 16.67 | a | 24.90 | 36.29 | 51.73 | 54.90 | 55.16 | 41.13 | 32.29 | 16.37 | -5.45 | 27.03 | ||||||||||
1962 | -8.10 | a | -6.57 | 9.87 | 27.40 | 41.23 | 51.63 | 52.61 | 53.71 | 40.00 | b | 34.73 | a | 22.70 | 4.38 | b | 26.97 | |||||||||
1963 | -10.73 | a | -1.79 | 16.00 | 29.63 | 37.87 | 53.67 | 57.29 | 54.32 | 44.77 | 39.35 | 18.00 | -2.19 | 28.02 | ||||||||||||
1964 | 0.60 | a | 5.03 | 3.39 | 31.83 | 43.10 | 49.10 | 57.03 | 49.45 | 39.30 | 32.58 | 16.17 | -9.65 | 26.49 | ||||||||||||
1965 | -12.87 | -6.18 | 4.29 | 30.30 | 39.26 | 50.27 | 53.87 | 51.61 | 35.57 | 32.50 | a | 13.17 | 6.16 | 24.83 | ||||||||||||
1966 | -18.58 | -6.32 | 17.97 | 24.80 | 36.19 | 50.87 | 57.32 | 51.26 | 43.20 | 31.16 | 8.37 | -0.87 | 24.61 | |||||||||||||
1967 | -4.13 | -11.56 | a | 10.37 | d | 26.60 | 36.16 | 49.83 | a | 53.32 | 49.77 | 45.70 | 32.39 | 18.93 | 4.52 | 25.99 | ||||||||||
1968 | -5.16 | -5.15 | c | 16.90 | 28.67 | 37.39 | 50.00 | 53.94 | 51.29 | c | 45.52 | a | 30.77 | 20.77 | -1.07 | a | 26.99 | |||||||||
1969 | -12.84 | -0.18 | 3.52 | 29.67 | 40.26 | 44.30 | 55.84 | 56.74 | 44.53 | 29.52 | 20.23 | 5.87 | 26.45 | |||||||||||||
1970 | -8.90 | a | -4.43 | 5.30 | a | 29.65 | d | 40.45 | 56.53 | 58.10 | 53.90 | 44.37 | ----- | z | 16.60 | -4.81 | 26.07 | a | ||||||||
1971 | -13.84 | -0.18 | 12.71 | 31.90 | 38.90 | 53.20 | 53.00 | 53.74 | 43.69 | a | 33.45 | 16.90 | -1.38 | b | 26.84 | |||||||||||
1972 | -12.97 | -5.96 | a | 13.58 | 28.47 | 44.10 | 49.40 | 49.77 | 53.03 | 38.17 | 25.71 | 14.67 | -8.16 | 24.15 | ||||||||||||
1973 | 3.77 | 3.57 | 24.90 | 27.80 | 41.32 | 50.77 | 52.81 | 55.13 | 43.00 | 36.42 | 9.73 | -1.90 | a | 28.94 | ||||||||||||
1974 | -13.77 | -6.36 | 4.45 | 26.47 | 37.52 | 48.50 | 57.29 | 48.90 | 36.87 | 30.93 | b | ----- | z | ----- | z | 27.08 | b | |||||||||
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 | -18.17 | a | -9.68 | c | -1.14 | q | 30.18 | h | ----- | z | 47.17 | 51.38 | g | 45.24 | f | 42.60 | 27.48 | 7.57 | -8.20 | f | 16.16 | f | ||||
1979 | -19.65 | -15.68 | -5.50 | o | 19.68 | e | 33.59 | b | 47.30 | 54.48 | b | 44.90 | a | 39.38 | f | 27.27 | a | 11.79 | a | 0.96 | f | 22.63 | c | |||
1980 | -11.58 | -5.24 | 0.43 | c | 29.05 | i | 39.31 | e | 44.85 | d | 50.07 | b | 44.96 | c | 36.00 | b | 26.84 | 16.92 | e | -3.89 | c | 21.70 | a | |||
1981 | -3.84 | 2.21 | 17.48 | ----- | z | 38.71 | n | 46.54 | f | 51.56 | f | 51.10 | b | 37.60 | 28.68 | c | 17.42 | d | -5.77 | i | 21.52 | e | ||||
1982 | -27.48 | -12.76 | c | 2.86 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -12.46 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -8.14 | -3.35 | 11.01 | 27.94 | 39.25 | 49.31 | 54.39 | 52.32 | 41.91 | 31.22 | 15.21 | 0.92 | 26.47 | |||||||||||||
S.D. | 7.86 | 6.49 | 6.78 | 3.40 | 2.88 | 3.13 | 2.21 | 2.52 | 2.96 | 3.35 | 4.86 | 6.48 | 1.72 | |||||||||||||
SKEW | -0.16 | 0.31 | 0.14 | 0.08 | -0.07 | 0.78 | -0.05 | -1.09 | -0.30 | 0.35 | -0.14 | 0.49 | -0.40 | |||||||||||||
MAX | 7.29 | 15.64 | 24.90 | 35.40 | 44.35 | 58.17 | 58.71 | 56.74 | 46.90 | 39.35 | 24.13 | 14.58 | 29.41 | |||||||||||||
MIN | -27.48 | -16.00 | 0.43 | 19.68 | 32.35 | 43.97 | 49.77 | 44.90 | 35.57 | 25.55 | 5.33 | -9.65 | 22.47 | |||||||||||||
YRS | 41 | 41 | 38 | 38 | 39 | 40 | 40 | 41 | 41 | 40 | 40 | 37 | 31 |