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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 -> 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
1 303 301 296 347 850 2,990 2,070 743 511 469 423 342
2 303 301 295 349 885 3,070 1,990 724 508 469 414 345
3 303 303 295 346 933 3,130 1,950 710 501 472 415 341
4 303 302 294 353 1,000 3,220 1,890 704 496 468 416 336
5 307 302 295 363 1,050 3,330 1,820 695 494 466 411 331
6 307 303 296 368 1,110 3,420 1,750 678 495 465 408 325
7 306 303 295 376 1,180 3,420 1,680 663 493 466 405 324
8 307 302 297 384 1,240 3,360 1,610 655 488 464 407 317
9 306 301 298 393 1,290 3,270 1,550 644 488 461 399 316
10 305 301 300 400 1,320 3,240 1,490 634 488 455 397 315
11 305 299 302 406 1,360 3,160 1,440 624 490 459 390 316
12 303 300 302 414 1,410 3,130 1,380 617 493 459 387 315
13 303 300 303 429 1,520 3,160 1,320 614 486 455 386 315
14 305 300 304 453 1,600 3,110 1,270 604 484 452 385 314
15 307 300 304 461 1,690 3,070 1,220 594 482 455 378 316
16 306 299 308 467 1,790 3,060 1,170 587 481 457 376 315
17 305 299 312 484 1,910 3,030 1,120 573 479 454 375 312
18 304 298 312 503 2,010 2,970 1,090 569 480 450 373 310
19 304 299 316 520 2,080 2,960 1,050 567 483 447 371 311
20 304 300 316 545 2,160 2,900 1,010 566 483 447 369 312
21 305 299 319 570 2,250 2,790 977 562 484 446 358 315
22 303 299 321 601 2,310 2,750 947 559 481 446 357 314
23 304 298 323 638 2,340 2,660 923 554 478 440 357 310
24 303 297 322 652 2,390 2,640 895 552 475 437 360 309
25 303 297 323 667 2,460 2,580 871 543 470 436 356 309
26 302 296 326 679 2,570 2,510 857 536 469 436 349 308
27 300 297 329 695 2,660 2,430 833 531 470 430 345 307
28 299 297 329 721 2,770 2,320 815 525 468 430 346 307
29 298 303 329 762 2,880 2,240 800 520 464 428 341 307
30 299   333 803 2,910 2,170 786 516 465 420 341 307
31 299   339   2,920   772 513   431   307