Country= U.S.A. Station= TONASKET, WASH. River= OKANOGAN RIVER Area= 18802.29 Lat= 48.63 Lon= -119.46 Source= USGS PointID= 12445000 Area Units= km2 Discharge Units= m3/sec Starting Year= 1950 Ending Year= 1993 Total Years= 44 Total Usable Years= 36 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1950 61.57 73.47 74.18 108.79 133.04 104.91 59.11 40.41 48.54 67.61 71.47 76.69 76.65 1951 75.59 99.3 86.7 107.87 111.98 44.13 25.1 41.19 40.74 54.82 58.97 61.27 67.31 1952 68.6 68.16 73.73 161.31 137.87 57.58 26.77 28.66 34.07 41.84 50.07 55.94 67.05 1953 63.49 57.61 53.76 60.17 48.32 56.36 5.03 7.3 7.19 20.12 31.95 31.82 36.93 1954 33.72 36.96 42.71 49.57 14.29 10.06 3.47 3.21 9.76 20.27 26.3 25.57 22.99 1955 29.46 26.99 44.39 60.78 45.12 26.59 3.35 4.78 7.85 21.1 32.54 51.16 29.51 1956 60.1 39.16 57.34 78.81 74.83 21.28 3.54 6.45 7.21 21.56 30.81 35.46 36.38 1957 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1958 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1959 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1960 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1961 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1962 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1963 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1964 28.27 30.17 32.79 86.38 84.34 85.39 6.42 2.25 3.55 17.03 28.32 50.63 37.96 1965 48.58 60.35 41.59 76.17 76.25 58.46 18.5 31.73 49.58 58.14 69.24 66.93 54.63 1966 69.02 68.48 82.6 75.51 40.04 3.42 3.18 2.51 4.08 13.87 23.1 27.84 34.47 1967 30.03 31.64 44.89 63.43 83.64 97.94 22.56 24.71 31.82 49.19 57.31 53.29 49.2 1968 53.94 45.96 67.67 57.01 29.31 51.17 3.2 19.17 9.21 32.33 53 52.28 39.52 1969 73.74 59.87 79.53 120.6 57.81 20.3 12.44 3.55 6.56 28.5 40.28 46.7 45.82 1970 55.75 43.03 38.74 37.94 57.73 45.73 3.06 2.89 11.45 31.55 33.22 55.77 34.74 1971 75.94 77.04 82.19 121.8 154.14 172.52 70.16 33.04 64.97 81.33 82.19 83.81 91.59 1972 91.2 81.81 104.17 117.91 115.87 86.48 44.98 24.92 55.19 59.71 70.91 67.28 76.7 1973 70.98 71.4 92.69 92.36 85.54 25.71 17.84 3.64 40.2 49.12 46.15 53.84 54.12 1974 63.67 64.24 100.74 92.52 95.45 70.97 19.95 20.91 29.67 35.54 37.94 48.81 56.7 1975 51.56 47.92 71.3 68.64 117.28 100.53 40.7 25.12 38.04 73.83 78.74 61.17 64.57 1976 58 61.95 89.79 126.57 110.55 46.6 7.8 14.06 29.73 44.01 46.41 47.36 56.9 1977 46.77 33.91 36.97 21.69 14.75 4.12 2.97 8.4 16.22 10.04 23.5 26.43 20.48 1978 31.42 37.17 59.71 100.75 89.34 43.55 3.98 4.56 13.31 21.89 31.39 33.46 39.21 1979 31.78 36.4 71.36 70.18 51.59 11.89 4.16 4.22 4.69 20.03 27.97 24.69 29.91 1980 69.32 63.15 51.26 68.89 133.03 136.51 27.47 23.52 47.31 53.02 59.42 56.33 65.77 1981 50.6 34.45 31.64 33.16 33.16 34.89 3.68 2.89 5.11 24.74 25.32 31.15 25.9 1982 28.59 30.39 79.71 97.23 147.71 83.73 19.58 28.93 57.07 85.5 86.77 89.02 69.52 1983 88.35 86.4 122.48 108.52 174.8 223.66 118.54 86.21 85.27 120.05 124.61 124.98 121.99 1984 103.04 101.79 144.43 189.44 271.78 260.54 95.55 83.4 96.94 115.29 126.61 107.49 141.36 1985 80.59 76.35 104.61 205.52 99.51 20.22 30.28 34.78 49.22 56.75 67.65 68.19 74.47 1986 65.49 168.95 171.05 199.27 225.17 188.16 96.07 64.21 90.33 93.4 100.14 83.8 128.84 1987 63.64 63.71 54.74 34.39 35.52 29.55 16.38 21.8 18.8 17.74 27.39 29.04 34.39 1988 32.09 31.09 31.1 43 18.14 4.09 3.51 2.96 7.05 18.52 18.33 20.45 19.19 1989 21.65 22.13 57.26 64.53 36.36 7.23 5.16 5.58 5.01 12.01 26.63 29.03 24.38 1990 35.81 25.89 31.62 25.99 8.4 8.27 3.47 3.01 4.54 11.34 20.82 18.35 16.46 1991 20.75 24.89 25.86 29.16 42.42 43.16 2.6 2.79 13.03 6.16 20.24 24.17 21.27 1992 20.36 22.82 26.58 18.06 2.03 2.2 2.29 1.56 1.76 2.71 18.87 18.1 11.45 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 54.26 55.69 68.39 85.39 84.92 63.55 23.13 19.98 29.03 41.41 49.29 51.06 52.18 Std Dev 21.47 29.08 33.04 47.52 60.03 62.69 29.32 21.52 26.25 29.84 28.47 25.07 30.91