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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).


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 -> 2020-09-30)

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
1 254 255 272 342 796 2,820 1,300 557 495 406 349 331
2 254 262 276 339 809 2,800 1,270 561 488 408 348 336
3 250 264 278 336 813 2,790 1,220 578 477 408 347 337
4 248 269 279 340 847 2,820 1,200 577 466 408 344 329
5 252 271 272 345 850 2,850 1,130 568 462 405 342 318
6 251 267 275 361 910 2,880 1,070 564 463 402 339 314
7 256 263 279 376 991 2,960 996 565 458 398 335 310
8 259 260 286 377 1,020 2,970 905 570 453 392 334 307
9 258 260 297 384 1,060 3,050 852 576 448 391 335 313
10 253 259 304 396 1,080 3,050 820 579 446 387 331 307
11 252 264 327 406 1,120 2,780 778 575 438 384 330 311
12 255 266 325 418 1,230 2,570 730 576 447 383 329 309
13 255 265 332 413 1,300 2,480 706 578 452 381 339 305
14 254 266 323 415 1,320 2,560 682 581 440 383 344 302
15 253 265 326 415 1,350 2,560 665 583 437 384 342 297
16 255 273 333 428 1,380 2,510 645 587 440 380 342 293
17 269 273 344 439 1,420 2,560 646 571 441 375 339 289
18 268 271 369 448 1,490 2,580 624 558 436 369 339 288
19 270 273 370 483 1,540 2,510 615 548 436 366 336 283
20 268 271 361 503 1,630 2,520 603 558 436 366 334 281
21 264 267 348 543 1,750 2,450 594 557 434 366 333 278
22 265 264 357 575 1,910 2,180 572 541 431 365 328 273
23 262 267 352 585 2,050 2,110 556 539 428 365 325 273
24 259 268 357 597 2,080 2,090 542 541 421 364 327 274
25 260 281 364 618 2,150 1,920 538 543 416 364 324 275
26 261 276 357 640 2,300 1,820 548 552 412 363 321 270
27 258 273 349 662 2,460 1,690 542 527 407 364 322 269
28 256 271 344 668 2,600 1,570 541 518 412 360 322 266
29 254 235 341 698 2,620 1,440 537 511 407 353 326 262
30 252   331 741 2,620 1,340 541 503 403 348 329 258
31 252   318   2,750   546 494   350   254