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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 06027600 Jefferson River at Parsons Bdg nr Silver Star, MT


Madison County, Montana
Hydrologic Unit Code 10020005
Latitude  45°44'51.01", Longitude 112°11'14.02" NAD83
Drainage area 7,759  square miles
Gage datum 4,420 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 2005-10-01 -> 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       1,240 1,690 4,450 2,660 346 374 887 834  
2       1,340 1,640 4,410 2,560 335 376 951 776  
3       1,440 1,610 4,500 2,420 328 372 888 834  
4       1,430 1,690 4,620 2,300 318 383 906 833  
5       1,390 1,750 4,650 2,180 320 400 944 842  
6       1,400 1,840 4,870 2,020 311 411 1,060 819  
7       1,430 1,950 5,210 1,850 314 426 1,140 806  
8       1,430 2,080 5,680 1,700 316 425 1,170 570  
9       1,360 2,140 6,010 1,590 321 424 1,220 557  
10       1,310 2,150 5,970 1,470 322 431 1,230 765  
11       1,310 2,140 5,930 1,380 319 441 1,250 625  
12       1,350 1,990 5,640 1,300 320 432 1,270 722  
13       1,470 1,960 5,370 1,250 311 422 1,300 776  
14       1,720 2,070 5,040 1,210 303 421 1,340 872  
15       1,730 2,180 4,820 1,190 298 435 1,130 854  
16       1,650 2,400 4,940 1,130 295 464 1,140 873  
17       1,760 2,760 4,710 1,070 295 486 1,190 591  
18       2,170 2,950 4,970 983 281 501 1,200    
19       2,550 2,990 4,980 880 263 518 1,240    
20       2,390 3,180 4,780 775 261 533 1,310    
21       1,810 3,460 4,060 689 272 554 1,310    
22       1,790 3,560 3,910 623 291 587 1,280    
23       1,850 3,640 3,840 584 312 614 1,270    
24       1,880 3,900 3,840 552 336 632 1,250    
25       1,860 4,450 3,740 508 349 650 1,270    
26       1,850 5,030 3,580 469 349 671 1,310    
27       1,800 5,120 3,460 436 351 684 1,330    
28       1,710 5,170 3,430 421 351 695 1,350    
29       1,660 5,140 3,270 407 354 705 1,330    
30       1,640 5,180 3,200 383 356 748 1,310    
31         5,180   361 367   1,300