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USGS Surface-Water 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 -> 2024-09-30)

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
1 294 277 272 315 647 2,790 3,320 1,250 615 564 470 366
2 290 278 267 312 671 2,820 3,260 1,220 613 556 463 366
3 291 279 268 308 698 2,920 3,250 1,170 603 553 464 368
4 290 273 264 307 737 3,130 3,200 1,120 593 554 466 364
5 295 275 265 311 777 3,330 3,150 1,080 581 551 461 349
6 296 273 283 323 807 3,540 3,100 1,040 578 550 450 344
7 296 267 280 328 883 3,570 3,040 995 577 548 444 345
8 294 265 278 331 937 3,560 2,980 963 574 545 446 341
9 297 265 295 343 973 3,560 2,870 938 573 542 441 332
10 298 264 295 355 1,030 3,520 2,820 914 573 541 435 331
11 296 271 286 382 1,100 3,420 2,750 892 583 539 425 337
12 295 278 282 383 1,140 3,340 2,650 869 591 541 420 338
13 298 280 277 377 1,220 3,490 2,560 851 592 535 419 334
14 302 273 280 385 1,240 3,580 2,450 830 587 528 419 336
15 297 267 283 392 1,310 3,560 2,380 806 593 532 419 334
16 297 268 291 389 1,370 3,610 2,280 789 591 534 416 322
17 299 271 294 396 1,480 3,660 2,170 766 588 527 414 321
18 296 273 301 406 1,550 3,600 2,070 745 591 524 409 318
19 293 274 296 421 1,630 3,620 1,990 734 593 515 406 320
20 291 275 295 439 1,750 3,630 1,920 738 592 514 400 320
21 292 275 299 462 1,890 3,620 1,850 728 599 512 391 322
22 286 270 311 484 1,960 3,670 1,770 715 597 507 385 316
23 287 267 316 521 2,010 3,660 1,680 705 588 500 385 312
24 287 267 320 536 2,070 3,660 1,620 696 583 495 389 312
25 281 276 317 553 2,190 3,640 1,570 680 571 491 388 310
26 281 271 309 564 2,260 3,610 1,530 664 568 487 377 305
27 280 275 304 574 2,370 3,550 1,470 655 568 482 371 302
28 277 278 312 583 2,520 3,490 1,400 642 565 473 372 300
29 280 309 328 593 2,710 3,380 1,360 630 561 474 367 305
30 281   328 615 2,750 3,320 1,330 624 559 467 365 300
31 276   315   2,770   1,290 624   476   299