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USGS Daily Statistics for the Nation

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 -> 2023-09-30)

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
1 302 301 296 348 850 3,000 2,080 743 510 469 422 342
2 303 301 295 349 886 3,080 2,000 724 507 468 413 344
3 303 302 295 346 935 3,140 1,950 710 500 471 414 340
4 303 302 294 352 1,010 3,210 1,900 704 493 467 415 335
5 306 302 295 361 1,060 3,320 1,830 695 491 465 409 330
6 306 302 296 366 1,120 3,410 1,760 678 494 464 406 324
7 306 302 295 375 1,190 3,410 1,690 663 492 466 403 323
8 306 301 297 384 1,250 3,350 1,620 655 487 464 406 316
9 306 301 298 393 1,290 3,260 1,550 644 487 460 398 315
10 305 301 300 400 1,330 3,220 1,490 634 487 455 396 314
11 305 299 302 406 1,370 3,140 1,450 624 489 458 389 315
12 303 300 302 414 1,410 3,120 1,390 617 492 457 386 315
13 303 300 302 428 1,520 3,160 1,320 614 485 454 385 315
14 306 299 304 451 1,600 3,110 1,280 604 483 451 384 314
15 308 299 304 458 1,690 3,070 1,220 594 481 454 377 316
16 306 299 308 464 1,780 3,060 1,170 587 480 456 375 314
17 305 299 312 481 1,910 3,030 1,130 573 478 453 374 311
18 304 298 312 502 2,010 2,980 1,090 569 480 449 372 310
19 304 299 315 519 2,080 2,970 1,050 567 482 446 370 311
20 304 299 315 545 2,160 2,910 1,020 566 483 445 368 311
21 305 298 318 570 2,260 2,800 980 562 483 445 358 314
22 303 299 321 602 2,320 2,760 950 559 479 445 356 313
23 305 298 323 638 2,350 2,670 925 554 476 439 356 309
24 303 296 322 652 2,410 2,640 897 552 474 436 360 309
25 303 297 323 666 2,470 2,590 873 543 469 435 356 309
26 302 296 326 676 2,580 2,510 859 536 469 435 349 308
27 300 297 328 693 2,670 2,430 834 531 470 429 345 306
28 299 298 329 718 2,780 2,320 816 525 467 429 346 306
29 298 303 329 760 2,880 2,240 801 520 464 427 341 306
30 299   333 802 2,910 2,180 787 516 465 420 341 307
31 299   339   2,920   772 512   430   306