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USGS Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 06307830 Tongue R bl Brandenberg bridge nr Ashland MT


Rosebud County, Montana
Hydrologic Unit Code 10090102
Latitude  45°50'25.39", Longitude 106°13'24.36" NAD83
Drainage area 3,882  square miles
Gage datum 2,760 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1973-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 168 176 215 283 360 1,490 1,000 415 334 272 238 183
2 169 176 216 284 371 1,530 940 409 328 273 236 191
3 167 172 224 286 382 1,540 916 412 323 273 235 204
4 166 171 228 285 398 1,590 873 410 323 270 233 211
5 165 171 235 288 416 1,580 838 412 322 266 231 203
6 166 169 260 291 458 1,550 822 411 321 265 231 188
7 167 165 244 289 477 1,580 788 403 317 263 228 180
8 169 167 253 292 502 1,610 753 394 313 261 226 185
9 169 166 292 293 524 1,630 707 391 312 262 229 189
10 166 167 277 294 548 1,660 660 389 311 261 228 190
11 166 170 254 300 566 1,670 615 387 311 260 227 191
12 168 174 245 301 582 1,660 577 384 309 258 226 190
13 172 181 245 306 609 1,640 550 379 306 261 224 189
14 173 182 260 306 666 1,640 528 378 300 259 222 191
15 173 185 309 308 698 1,610 510 376 299 255 219 188
16 176 193 282 309 733 1,550 499 370 298 251 220 183
17 183 200 268 308 768 1,500 487 367 295 253 221 183
18 191 216 281 311 787 1,480 474 369 289 248 217 181
19 196 216 334 318 851 1,480 465 371 289 244 216 179
20 204 208 355 320 907 1,480 454 371 284 247 212 176
21 216 205 358 323 980 1,440 447 369 282 246 202 176
22 212 202 347 326 1,070 1,400 441 364 282 244 197 172
23 204 199 320 329 1,060 1,350 438 368 286 245 190 167
24 200 200 300 330 1,010 1,300 439 367 282 245 190 169
25 197 212 287 333 1,020 1,250 451 361 279 243 192 170
26 190 215 270 332 1,050 1,240 466 360 276 243 195 172
27 184 210 252 329 1,090 1,240 434 357 271 244 194 173
28 181 210 244 337 1,150 1,220 428 355 271 242 189 172
29 176 238 245 345 1,200 1,150 424 342 268 244 184 170
30 176   252 352 1,270 1,090 430 334 268 241 183 171
31 178   268   1,360   424 336   239   169