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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 06043500 Gallatin River near Gallatin Gateway, MT


Gallatin County, Montana
Hydrologic Unit Code 10020008
Latitude  45°29'50.28", Longitude 111°16'14.55" NAD83
Drainage area 819  square miles
Gage datum 5,167.67 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 1888-10-01 -> 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
1 303 302 297 349 840 2,970 2,090 747 512 471 423 343
2 303 301 295 350 872 3,050 2,010 728 510 470 413 345
3 303 302 295 348 923 3,100 1,970 712 503 473 414 342
4 303 303 295 353 996 3,170 1,910 706 496 469 416 336
5 306 303 295 362 1,050 3,280 1,840 697 494 468 410 330
6 306 303 297 368 1,110 3,370 1,770 678 496 467 407 325
7 305 303 296 378 1,180 3,380 1,700 663 495 468 403 323
8 306 302 297 386 1,250 3,340 1,630 656 489 466 406 316
9 306 301 299 395 1,300 3,250 1,570 646 489 462 400 315
10 306 302 301 401 1,340 3,210 1,500 636 489 457 397 314
11 305 300 303 406 1,380 3,130 1,460 626 491 459 391 316
12 303 300 303 413 1,420 3,100 1,400 620 495 459 388 315
13 303 300 304 429 1,530 3,120 1,330 616 488 455 386 315
14 306 300 305 454 1,620 3,090 1,290 606 485 452 385 314
15 308 300 305 462 1,700 3,070 1,230 597 484 456 377 316
16 307 300 308 469 1,790 3,070 1,180 589 482 459 375 315
17 306 299 313 487 1,910 3,040 1,130 575 481 455 374 312
18 304 299 313 508 2,000 2,970 1,100 571 482 451 373 311
19 305 299 316 525 2,050 2,960 1,060 569 485 447 371 312
20 305 300 315 553 2,140 2,920 1,020 564 485 447 368 311
21 306 299 319 578 2,250 2,810 987 559 485 447 359 314
22 303 300 322 610 2,310 2,770 956 558 481 445 357 314
23 305 299 324 647 2,340 2,690 930 554 477 439 357 309
24 304 297 323 662 2,410 2,650 902 553 475 436 360 309
25 304 298 323 676 2,480 2,600 878 544 471 436 357 310
26 302 297 327 684 2,590 2,530 864 537 470 435 349 308
27 300 298 330 700 2,670 2,450 839 532 472 430 346 307
28 299 298 330 727 2,770 2,330 821 525 469 430 347 307
29 299 303 329 767 2,870 2,250 805 521 466 428 343 308
30 299   334 802 2,890 2,190 792 517 467 420 342 309
31 299   340   2,890   777 515   431   307