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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 06205000 Stillwater River near Absarokee, MT


Stillwater County, Montana
Hydrologic Unit Code 10070005
Latitude  45°32'12.27", Longitude 109°25'19.40" NAD83
Drainage area 936  square miles
Gage datum 3,957 feet above NAVD88
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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
1 294 277 272 315 645 2,770 3,310 1,250 613 562 470 366
2 290 278 267 312 669 2,810 3,250 1,210 610 554 463 366
3 291 279 268 308 696 2,910 3,240 1,160 601 553 464 368
4 290 273 264 307 734 3,140 3,190 1,110 591 554 466 364
5 295 275 265 311 773 3,330 3,130 1,070 578 551 461 349
6 296 273 283 323 803 3,560 3,080 1,040 575 550 450 344
7 296 267 280 328 878 3,580 3,020 992 575 548 444 345
8 294 265 278 331 932 3,580 2,960 960 572 545 446 341
9 297 265 295 343 970 3,580 2,850 936 570 542 441 332
10 298 264 295 355 1,020 3,550 2,810 912 571 541 435 331
11 296 271 286 381 1,100 3,450 2,740 890 580 539 425 337
12 295 278 282 382 1,130 3,370 2,640 868 588 541 420 338
13 298 280 277 376 1,220 3,520 2,550 849 590 535 419 334
14 302 273 280 384 1,240 3,590 2,440 829 585 528 419 336
15 297 267 283 392 1,310 3,570 2,370 805 590 532 419 334
16 297 268 291 390 1,360 3,620 2,270 788 588 534 416 322
17 299 271 294 397 1,480 3,660 2,160 764 585 527 414 321
18 296 273 301 406 1,550 3,590 2,060 743 590 524 409 318
19 293 274 296 422 1,620 3,610 1,980 732 592 515 406 320
20 291 275 295 439 1,750 3,610 1,920 736 591 514 400 320
21 292 275 299 461 1,880 3,600 1,850 726 598 512 391 322
22 286 270 311 483 1,950 3,650 1,760 713 596 507 385 316
23 287 267 316 520 2,000 3,640 1,670 703 587 500 385 312
24 287 267 320 535 2,060 3,660 1,620 693 581 495 389 312
25 281 276 317 552 2,180 3,640 1,560 677 570 491 388 310
26 281 271 309 564 2,250 3,610 1,520 662 566 487 377 305
27 280 275 304 574 2,360 3,550 1,460 652 566 482 371 302
28 277 278 312 582 2,510 3,490 1,400 639 563 473 372 300
29 280 309 328 593 2,700 3,370 1,350 627 559 474 367 305
30 281   328 614 2,740 3,310 1,330 622 557 467 365 300
31 276   315   2,760   1,280 622   476   299