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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 06025250 Big Hole River at Maiden Rock nr Divide MT


Beaverhead County, Montana
Hydrologic Unit Code 10020004
Latitude  45°42'04.57", Longitude 112°44'09.49" NAD83
Drainage area 2,199  square miles
Gage datum 5,300 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 1997-10-01 -> 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     327 849 1,970 4,280 2,120 530 304 375 522  
2     335 874 1,950 4,300 1,960 519 302 385 374  
3     336 870 1,960 4,310 1,850 499 295 379 345  
4     340 920 2,010 4,330 1,760 481 293 378    
5     342 985 2,090 4,410 1,670 470 300 381    
6     345 999 2,200 4,380 1,550 465 309 383    
7     345 991 2,370 4,370 1,450 464 311 385    
8     348 1,000 2,490 4,350 1,390 471 308 385    
9     346 1,070 2,540 4,200 1,330 461 310 383    
10     362 1,220 2,520 4,060 1,270 442 328 379    
11     390 1,300 2,490 3,820 1,230 428 326 383    
12     400 1,330 2,450 3,610 1,180 414 314 390    
13     419 1,330 2,500 3,540 1,140 400 307 400    
14     448 1,340 2,600 3,480 1,110 391 301 418    
15     492 1,320 2,710 3,430 1,080 383 299 419    
16     558 1,260 2,880 3,380 1,040 377 302 419    
17     589 1,250 3,100 3,500 1,010 364 307 425    
18     592 1,330 3,290 3,630 937 348 309 426    
19     601 1,470 3,460 3,690 870 333 311 428    
20   476 664 1,580 3,670 3,500 813 325 315 431    
21   439 688 1,670 3,740 3,270 796 331 321 434    
22   445 664 1,820 3,810 3,110 757 336 323 435    
23   419 667 1,930 3,910 3,030 712 341 327 438    
24   398 652 1,950 3,970 2,920 683 345 329 438    
25   410 642 1,940 4,110 2,760 652 334 328 434    
26   405 646 1,910 4,120 2,630 618 329 331 434    
27   402 655 1,930 4,180 2,490 600 321 331 440    
28   374 679 1,950 4,210 2,370 597 315 328 432    
29   431 680 1,990 4,240 2,310 582 308 331 420    
30     702 1,980 4,220 2,230 563 305 348 427    
31     770   4,220   545 301   456