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USGS Daily Statistics for the Nation

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 06018500 Beaverhead River near Twin Bridges MT


Madison County, Montana
Hydrologic Unit Code 10020002
Latitude  45°23'00.20", Longitude 112°27'10.19" NAD83
Drainage area 3,618  square miles
Gage datum 4,809.15 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 1934-10-01 -> 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
1 385 368 395 463 331 268 319 171 295 373 466 477
2 380 373 393 461 328 266 302 170 298 370 472 481
3 378 376 395 455 321 273 294 176 299 368 478 481
4 377 373 395 451 312 288 296 177 297 371 485 478
5 375 377 397 454 307 296 297 180 305 373 486 469
6 377 381 400 461 298 303 285 184 309 372 490 459
7 377 384 406 457 289 311 271 184 314 370 491 459
8 378 385 405 454 286 319 259 185 317 373 495 451
9 378 378 406 448 282 337 251 190 317 373 496 445
10 374 376 407 441 278 356 251 194 319 374 497 446
11 367 378 404 436 271 357 247 194 328 374 497 442
12 366 385 407 432 272 365 252 203 330 377 496 441
13 367 382 410 430 267 350 247 202 333 377 494 435
14 370 380 410 428 263 349 243 201 337 375 495 428
15 372 377 411 431 253 348 238 202 340 383 494 428
16 370 378 417 428 247 352 234 204 339 394 493 424
17 374 379 425 422 250 363 226 202 338 399 496 422
18 371 382 429 415 243 358 224 202 342 399 499 421
19 368 386 438 408 230 351 219 204 352 403 499 420
20 366 387 445 404 231 333 212 210 361 411 501 421
21 368 391 445 398 236 328 205 215 363 416 503 424
22 365 394 445 390 247 328 203 220 359 418 498 423
23 370 394 450 385 249 322 200 231 362 424 493 421
24 371 393 461 376 256 318 191 241 364 435 492 411
25 368 391 466 366 257 318 187 249 363 441 497 408
26 366 392 468 360 255 318 181 256 364 445 491 402
27 366 389 473 351 253 323 176 260 363 445 487 400
28 365 394 468 342 249 326 170 263 368 448 483 400
29 363 427 465 335 257 324 169 264 371 450 478 396
30 365   459 333 268 324 169 274 373 454 475 392
31 366   460   270   169 287   460   389