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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 06089000 Sun River near Vaughn MT


Cascade County, Montana
Hydrologic Unit Code 10030104
Latitude  47°31'32.80", Longitude 111°30'39.73" NAD83
Drainage area 1,774  square miles
Gage datum 3,340.02 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 1933-10-01 -> 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
1 258 258 277 340 780 2,780 1,290 552 492 402 350 329
2 258 263 281 337 794 2,750 1,260 556 485 406 350 334
3 254 265 282 334 799 2,720 1,200 573 474 406 349 336
4 252 270 282 338 831 2,740 1,180 572 463 405 346 330
5 256 272 275 343 835 2,760 1,120 564 460 402 344 319
6 255 268 277 358 898 2,790 1,050 561 460 399 341 316
7 259 265 282 373 995 2,870 980 563 453 395 336 312
8 262 263 287 374 1,030 2,880 890 569 451 389 335 309
9 262 262 296 380 1,070 2,960 835 575 445 387 334 313
10 258 262 303 391 1,090 2,970 806 577 443 384 331 307
11 257 266 325 402 1,130 2,720 765 573 435 381 329 312
12 259 267 324 413 1,220 2,510 719 574 443 380 328 310
13 259 266 331 409 1,280 2,430 696 575 448 379 340 305
14 257 267 321 410 1,310 2,500 673 576 437 380 345 302
15 256 267 323 411 1,330 2,500 655 578 433 381 342 298
16 260 274 330 424 1,360 2,440 636 582 436 381 342 295
17 273 273 341 434 1,400 2,480 636 566 437 377 338 291
18 272 272 365 441 1,470 2,490 616 557 433 371 338 289
19 273 275 365 476 1,520 2,430 608 549 434 368 335 285
20 272 273 358 496 1,620 2,450 598 557 433 367 333 284
21 268 268 347 533 1,740 2,390 590 556 430 367 331 281
22 268 265 356 564 1,890 2,130 568 542 428 366 327 276
23 265 268 351 573 2,010 2,060 552 540 425 366 325 275
24 262 271 356 585 2,040 2,040 541 543 418 363 328 276
25 263 283 368 606 2,100 1,880 538 545 412 363 324 276
26 263 279 366 628 2,240 1,770 547 554 407 364 321 272
27 260 276 354 649 2,390 1,640 542 528 402 365 321 270
28 258 275 345 654 2,530 1,520 540 517 406 361 319 267
29 256 245 341 683 2,560 1,410 535 509 402 354 323 264
30 254   331 725 2,580 1,330 537 501 399 350 327 261
31 255   318   2,710   542 492   351   258