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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 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 -> 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
1 303 301 296 348 850 3,000 2,080 743 511 469 423 342
2 303 301 295 349 886 3,080 2,000 724 508 469 414 345
3 303 303 295 346 935 3,140 1,950 710 501 472 415 341
4 303 302 294 352 1,010 3,210 1,900 704 496 468 416 336
5 307 302 295 361 1,060 3,320 1,830 695 494 466 411 331
6 307 303 296 366 1,120 3,410 1,760 678 495 465 408 325
7 306 303 295 375 1,190 3,410 1,690 663 493 466 405 324
8 307 302 297 384 1,250 3,350 1,620 655 488 464 407 317
9 306 301 298 393 1,290 3,260 1,550 644 488 461 399 316
10 305 301 300 400 1,330 3,220 1,490 634 488 455 397 315
11 305 299 302 406 1,370 3,140 1,450 624 490 459 390 316
12 303 300 302 414 1,410 3,120 1,390 617 493 459 387 315
13 303 300 302 428 1,520 3,160 1,320 614 486 455 386 315
14 305 300 304 451 1,600 3,110 1,280 604 484 452 385 314
15 307 300 304 458 1,690 3,070 1,220 594 482 455 378 316
16 306 299 308 464 1,780 3,060 1,170 587 481 457 376 315
17 305 299 312 481 1,910 3,030 1,130 573 479 454 375 312
18 304 298 312 502 2,010 2,980 1,090 569 480 450 373 310
19 304 299 315 519 2,080 2,970 1,050 567 483 447 371 311
20 304 300 315 545 2,160 2,910 1,020 566 483 447 369 312
21 305 298 318 570 2,260 2,800 980 562 484 446 358 315
22 303 299 321 602 2,320 2,760 950 559 481 446 357 314
23 304 298 323 638 2,350 2,670 925 554 478 440 357 310
24 303 296 322 652 2,410 2,640 897 552 475 437 360 309
25 303 297 323 666 2,470 2,590 873 543 470 436 356 309
26 302 296 326 676 2,580 2,510 859 536 469 436 349 308
27 300 297 328 693 2,670 2,430 834 531 470 430 345 307
28 299 298 329 718 2,780 2,320 816 525 468 430 346 307
29 298 303 329 760 2,880 2,240 801 520 464 428 341 307
30 299   333 802 2,910 2,180 787 516 465 420 341 307
31 299   339   2,920   772 513   431   307