YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | 34.06 | 47.31 | a | 54.71 | 55.58 | 40.00 | 36.87 | 10.10 | a | -3.50 | c | 34.39 | d | |||||
1948 | -9.46 | c | -8.79 | 1.21 | b | 27.03 | 41.48 | 49.47 | 56.35 | 53.13 | 46.33 | 32.23 | a | 17.77 | -5.68 | 25.09 | ||||||||||
1949 | -12.35 | -14.21 | 7.45 | 31.20 | 40.00 | 48.63 | 52.19 | 54.19 | 38.67 | 30.00 | 22.50 | -5.27 | a | 24.42 | ||||||||||||
1950 | -24.19 | -9.32 | 5.61 | 21.73 | 38.16 | 46.27 | 51.81 | 47.65 | 44.53 | 32.10 | 8.07 | a | -5.10 | 21.44 | ||||||||||||
1951 | -12.71 | -4.21 | 1.32 | 26.77 | 41.13 | 45.13 | 50.65 | 50.29 | 39.13 | 28.45 | 7.17 | -6.23 | 22.24 | |||||||||||||
1952 | -11.39 | 6.17 | 9.23 | 31.43 | 38.06 | 49.20 | 50.87 | 49.90 | 41.93 | 24.23 | 17.03 | 4.45 | 25.93 | |||||||||||||
1953 | -5.35 | 2.25 | 11.97 | 21.73 | 38.48 | 47.73 | 50.83 | a | 53.16 | 39.93 | 35.19 | 23.07 | 3.94 | 26.91 | ||||||||||||
1954 | -18.97 | 14.36 | 12.27 | e | 24.63 | 34.26 | 49.97 | 56.42 | 52.03 | 43.27 | 31.29 | 21.83 | 11.03 | 27.70 | ||||||||||||
1955 | -5.16 | -5.75 | -0.87 | 34.40 | 42.87 | 49.50 | 56.00 | 50.87 | 36.20 | 27.33 | a | 0.97 | -12.80 | a | 22.80 | |||||||||||
1956 | -11.10 | -14.31 | -1.81 | 15.87 | 34.84 | 50.48 | a | 47.77 | 46.29 | 32.47 | 25.90 | b | 12.40 | -5.03 | 19.48 | |||||||||||
1957 | -19.68 | -9.74 | a | 6.74 | 22.77 | 39.42 | 44.60 | 55.76 | b | 50.71 | 37.37 | 30.52 | 15.86 | a | 4.55 | 23.24 | ||||||||||
1958 | 0.77 | -5.93 | a | 13.23 | a | 25.47 | 35.06 | 40.34 | a | 50.73 | a | 49.81 | 42.31 | a | 30.58 | 15.03 | a | -4.87 | 24.38 | |||||||
1959 | -12.23 | -7.75 | 19.74 | 26.77 | 35.97 | 49.47 | 52.10 | 52.19 | 41.43 | 26.97 | 8.73 | 12.65 | 25.50 | |||||||||||||
1960 | -7.90 | -5.45 | 1.16 | 27.60 | 39.68 | 47.63 | 53.06 | 52.10 | 40.93 | 29.35 | 15.80 | -2.87 | 24.26 | |||||||||||||
1961 | -7.31 | b | 1.50 | 17.94 | 23.90 | 34.68 | 47.83 | 51.93 | a | 51.94 | 39.37 | 30.10 | 14.60 | -7.00 | 24.96 | |||||||||||
1962 | -9.74 | -9.07 | 8.38 | b | 26.43 | 40.39 | 51.83 | 51.06 | 52.10 | 38.40 | 32.77 | 21.57 | 1.97 | 25.51 | ||||||||||||
1963 | -11.90 | a | -4.04 | 14.19 | 27.67 | 35.74 | 52.73 | 56.10 | 53.26 | 43.47 | 38.71 | 17.63 | -5.16 | 26.53 | ||||||||||||
1964 | -1.45 | 4.21 | 2.55 | 30.93 | 40.48 | 47.20 | 56.16 | 47.61 | 37.20 | 30.35 | 15.57 | -10.37 | a | 25.04 | ||||||||||||
1965 | -13.52 | -6.36 | 2.42 | 29.00 | 37.23 | 49.70 | 52.16 | 49.10 | 34.57 | 32.00 | 12.87 | 6.84 | 23.83 | |||||||||||||
1966 | -19.13 | -8.71 | 13.79 | q | 23.87 | 34.58 | 48.97 | a | 57.84 | 51.13 | 43.07 | 29.81 | 8.07 | -0.93 | a | 24.41 | a | |||||||||
1967 | -5.53 | a | -11.07 | 10.23 | a | 25.30 | 35.42 | 48.77 | 52.42 | 50.16 | 43.63 | 30.48 | 18.80 | 4.29 | 25.24 | |||||||||||
1968 | -7.32 | -0.90 | 20.00 | 27.60 | 36.45 | 49.87 | 52.97 | 48.94 | 41.57 | 32.10 | 20.00 | c | -0.57 | a | 26.72 | |||||||||||
1969 | -11.19 | 2.39 | e | -0.87 | 34.07 | a | 39.68 | 42.40 | 51.35 | e | 53.58 | 43.73 | 27.68 | 17.70 | g | 3.19 | 26.00 | a | ||||||||
1970 | -13.16 | -4.88 | c | 10.71 | n | 26.12 | f | 38.83 | h | 54.44 | c | 59.96 | f | 53.87 | p | 42.47 | o | 28.50 | k | 18.82 | h | -7.04 | h | 12.13 | i | |
1971 | -15.58 | g | 3.19 | a | 6.63 | d | 31.32 | k | ----- | z | 52.95 | k | 50.64 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.91 | j |
1972 | -13.46 | r | -14.13 | n | 13.17 | m | 30.12 | f | 46.44 | m | 43.43 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | -1.20 | a | 0.61 | 25.58 | 26.69 | d | 38.83 | a | 48.97 | 51.71 | 53.67 | a | 40.31 | d | 34.67 | a | 9.47 | -2.23 | a | 27.26 | ||||||
1974 | -15.00 | -10.04 | 1.07 | b | 27.13 | 38.30 | a | 50.10 | 56.52 | b | 47.22 | d | 35.33 | 29.61 | h | 16.93 | 6.80 | a | 23.12 | a | ||||||
1975 | -5.90 | a | -8.22 | a | -3.53 | l | 26.73 | 40.68 | 51.46 | d | 57.07 | c | 51.52 | d | 40.97 | 34.77 | 19.73 | 2.72 | b | 28.32 | a | |||||
1976 | -5.54 | c | 6.10 | 8.55 | 33.20 | 39.32 | 53.13 | 51.89 | c | 53.03 | 41.77 | 26.18 | c | 10.30 | -5.68 | 26.02 | ||||||||||
1977 | -14.87 | 4.50 | 20.06 | 30.10 | j | 50.42 | 50.78 | c | 55.23 | 46.19 | 45.15 | d | 32.65 | 14.27 | -5.71 | 27.15 | a | |||||||||
1978 | -11.50 | w | -9.57 | ----- | z | 30.57 | 44.61 | 50.96 | f | 54.50 | c | 50.68 | 47.71 | b | 31.40 | a | 5.24 | a | -6.68 | c | 27.61 | c | ||||
1979 | -18.71 | -14.62 | d | 5.45 | b | 22.50 | b | 35.36 | c | 50.63 | c | 58.13 | 49.53 | a | 42.07 | b | 27.90 | a | 13.55 | a | 6.76 | b | 23.21 | |||
1980 | -10.43 | c | -4.00 | g | 4.32 | c | 31.50 | 42.77 | 49.48 | c | 54.75 | c | 50.10 | b | 42.17 | 30.81 | 21.96 | c | 2.21 | b | 29.06 | a | ||||
1981 | 0.17 | h | 7.89 | a | 21.53 | a | 29.50 | b | 40.10 | 49.21 | a | 55.57 | a | 54.50 | c | 41.89 | b | 31.47 | a | 24.04 | d | -1.85 | d | 32.17 | a | |
1982 | -22.41 | b | -8.57 | e | 7.76 | n | 25.91 | g | 42.00 | g | 43.45 | s | 56.07 | d | 51.07 | a | 40.03 | 34.38 | b | 18.82 | m | 11.25 | w | 25.10 | f | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -11.10 | -3.89 | 8.80 | 27.13 | 38.70 | 48.85 | 53.72 | 51.01 | 40.82 | 30.91 | 14.87 | -0.82 | 24.68 | |||||||||||||
S.D. | 6.15 | 7.20 | 7.64 | 4.10 | 3.52 | 2.88 | 2.57 | 2.36 | 3.34 | 3.22 | 5.79 | 6.12 | 1.98 | |||||||||||||
SKEW | -0.20 | 0.57 | 0.53 | -0.37 | 1.09 | -0.91 | -0.11 | -0.29 | -0.41 | 0.21 | -0.37 | 0.31 | -0.76 | |||||||||||||
MAX | 0.77 | 14.36 | 25.58 | 34.40 | 50.42 | 54.44 | 58.13 | 55.58 | 47.71 | 38.71 | 24.04 | 12.65 | 27.70 | |||||||||||||
MIN | -24.19 | -14.63 | -1.81 | 15.87 | 34.06 | 40.34 | 47.77 | 46.19 | 32.47 | 24.23 | 0.97 | -12.80 | 19.48 | |||||||||||||
YRS | 31 | 33 | 29 | 30 | 32 | 32 | 33 | 33 | 33 | 32 | 31 | 32 | 23 |