Results
| Country: | U.S.A.
| | Station: | FORSYTH, MT. | | River: | YELLOWSTONE RIVER | | Area: | 26157452.14 | | Lat: | 46.26 | | Lon: | -106.69 | | Source: | USGS | | PointID: | 6295000 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1921 | | Ending Year: | 1996 | | Total Years: | 76 | | Total Usable Years: | 25 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
|---|
| 1921 | -9999 | -9999 | -9999 | -9999 | 356.79 | 1345.06 | 300.71 | 147.04 | 122.29 | 103.04 | 106.17 | -9999 | -9999 |
| 1922 | -9999 | -9999 | 279.75 | 179.91 | 406.71 | 1226.98 | 463.3 | 212.07 | 143.84 | 95.53 | 117.98 | 84.5 | -9999 |
| 1923 | -9999 | -9999 | 337.26 | 182.81 | 471.19 | 1074.63 | 752.59 | 255.98 | 234.44 | -9999 | -9999 | -9999 | -9999 |
| 1924 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1925 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1926 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1927 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1928 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1929 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1930 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1931 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1932 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1933 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1934 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1935 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1936 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1937 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1938 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1939 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1940 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1941 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1942 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1943 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1944 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1945 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1946 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1947 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1948 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1949 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1950 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1951 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1952 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1953 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1954 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1955 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1956 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 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 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1965 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1966 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1967 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1968 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1969 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1970 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1971 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1972 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1973 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1974 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1975 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1976 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1977 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 0 | 158.24 | 131.99 | 133.64 | -9999 |
| 1978 | 139.21 | 186.18 | 310.21 | 274.84 | 728.84 | 1074.91 | 954.37 | 397.37 | 320.69 | 291.2 | 239.85 | 220.87 | 428.21 |
| 1979 | 171 | 186.18 | 428.23 | 311.38 | 458.85 | 728.31 | 429.23 | 228.08 | 162.28 | 151.31 | 146.63 | 174.61 | 298.01 |
| 1980 | 148.77 | 206.52 | 214.24 | 268.11 | 518.38 | 686.59 | 409.64 | 189.51 | 244.35 | 261.02 | 204.59 | 187.04 | 294.9 |
| 1981 | 180.38 | 175.84 | 138.07 | 119.49 | 578.1 | 1037.63 | 427.66 | 159.26 | 128.88 | 192.73 | 205.79 | 189.15 | 294.42 |
| 1982 | 144.78 | 237.15 | 214.84 | 214.79 | 371.66 | 918.79 | 975.02 | 370.22 | 288.11 | 303.54 | 297.03 | 252.8 | 382.39 |
| 1983 | 220.75 | 210.17 | 209.45 | 212.44 | 370.71 | 831.39 | 762.91 | 296.63 | 243.28 | 301.98 | 292.19 | 174.82 | 343.89 |
| 1984 | 218.68 | 201.5 | 195.81 | 205.86 | 529.98 | 837.99 | 636.4 | 292.72 | 231.15 | 262.52 | 253.04 | 161.38 | 335.59 |
| 1985 | 170.27 | 176.37 | 236.75 | 208.14 | 337.63 | 437.91 | 196.77 | 183.57 | 171.8 | 194.67 | 153.77 | 166.25 | 219.49 |
| 1986 | 146.7 | 159.08 | 234.04 | 255.77 | 437.55 | 1101.15 | 507.42 | 237.26 | 294.43 | 262.36 | 235.72 | 197.59 | 339.09 |
| 1987 | 164.59 | 158.22 | 163.94 | 200.22 | 391.26 | 415.88 | 273.06 | 188.56 | 170.11 | 154.64 | 183.42 | 169.84 | 219.48 |
| 1988 | 141.4 | 149.1 | 150.41 | 156.19 | 499.38 | 535.1 | 173.73 | 89.9 | 111.53 | 109.91 | 124.97 | 115.01 | 196.39 |
| 1989 | 111.72 | 101.33 | 180.51 | 215.04 | 519.85 | 676.3 | 351.4 | 175.85 | 151.29 | 150.58 | 180.56 | 183.17 | 249.8 |
| 1990 | 183.88 | 171.68 | 173.05 | 263.96 | 344.3 | 692.26 | 415.7 | 195.62 | 153.55 | 193.22 | 190.87 | 156.61 | 261.22 |
| 1991 | 160.4 | 157.16 | 122.01 | 170.87 | 586.86 | 1257.84 | 496.28 | 163.96 | 201.35 | 220.38 | 218.26 | 199.65 | 329.59 |
| 1992 | 177.58 | 157.5 | 144.54 | 194.47 | 476.91 | 627.98 | 474.69 | 181.58 | 164.72 | 172.72 | 186.75 | 159.85 | 259.94 |
| 1993 | 139.3 | 107.4 | 175.11 | 160.2 | 624.92 | 841.01 | 721.63 | 348.9 | 226.36 | 266.45 | 222.17 | 184.69 | 334.85 |
| 1994 | 170.19 | 145.63 | 234.52 | 241.02 | 544.05 | 448 | 213.3 | 114.94 | 116.44 | 167.93 | 148.85 | 139.67 | 223.71 |
| 1995 | 125.05 | 156.35 | 144.9 | 164.02 | 507.17 | 1079.26 | 890.34 | 279.22 | 255.34 | 260.16 | 216.63 | 214.32 | 357.73 |
| 1996 | 180.32 | 224.19 | 247.85 | 361.13 | 585.98 | 1471.54 | 694.22 | 214.31 | 179.35 | -9999 | -9999 | -9999 | -9999 |
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| Avg | 162.89 | 171.98 | 215.98 | 217.17 | 483.96 | 879.39 | 523.65 | 223.75 | 187.63 | 203.53 | 193.2 | 173.27 | 298.26 |
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| Std Dev | 27.46 |
34.29 |
73.07 |
55.57 |
99.72 |
297.18 |
236.64 |
78.08 |
70.97 |
64.77 |
52.59 |
36.65 |
61.7 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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