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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 06295000 Yellowstone River at Forsyth MT


Rosebud County, Montana
Hydrologic Unit Code 10100001
Latitude  46°15'59.89", Longitude 106°41'28.69" NAD83
Drainage area 40,152  square miles
Contributing drainage area 39,460  square miles
Gage datum 2,504.62 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 1977-10-01 -> 2022-09-30)

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 5,450 5,570 6,030 6,930 10,500 29,600 26,800 10,500 6,350 6,990 7,230 6,420
2 5,450 5,530 6,040 6,940 10,700 29,800 26,500 10,100 6,300 6,980 7,230 6,370
3 5,490 5,590 6,140 6,970 11,100 30,000 25,900 9,770 6,280 7,080 7,300 6,290
4 5,450 5,650 6,260 7,010 11,300 30,100 25,400 9,450 6,220 7,230 7,220 6,270
5 5,440 5,650 6,240 7,010 11,500 30,200 24,800 9,140 6,170 7,320 7,180 6,290
6 5,480 5,650 6,210 7,020 11,700 30,700 24,100 8,870 6,120 7,320 7,170 6,200
7 5,520 5,670 6,230 7,060 11,800 32,200 23,200 8,600 6,070 7,330 7,140 6,110
8 5,520 5,620 6,310 7,110 12,400 34,200 22,400 8,400 6,070 7,340 7,070 6,030
9 5,540 5,570 6,470 7,230 13,700 34,400 21,700 8,150 6,110 7,340 7,040 5,940
10 5,570 5,630 6,680 7,420 14,400 33,900 21,100 7,920 6,120 7,340 7,050 6,010
11 5,530 5,660 6,920 7,710 14,900 33,400 20,400 7,790 6,170 7,330 7,000 6,060
12 5,540 5,670 7,140 7,830 15,400 32,700 19,900 7,650 6,330 7,320 6,920 6,050
13 5,560 5,610 7,250 7,820 15,800 31,900 19,500 7,500 6,460 7,360 6,800 6,060
14 5,580 5,610 7,510 7,820 15,800 31,300 18,700 7,370 6,540 7,370 6,780 6,070
15 5,600 5,680 7,710 7,740 16,100 31,600 18,000 7,300 6,630 7,360 6,770 6,100
16 5,640 5,760 7,570 7,720 16,700 31,700 17,300 7,250 6,680 7,390 6,850 6,020
17 5,650 5,870 7,390 7,860 17,400 31,800 16,500 7,140 6,700 7,380 6,850 5,890
18 5,600 6,000 7,330 8,000 18,700 32,400 15,900 7,050 6,720 7,310 6,830 5,810
19 5,500 6,110 7,340 8,010 20,500 32,400 15,300 6,950 6,860 7,320 6,800 5,780
20 5,470 6,190 7,290 8,130 21,600 31,900 14,700 6,850 6,980 7,370 6,720 5,720
21 5,540 6,140 7,180 8,350 23,000 31,700 14,200 6,780 6,960 7,280 6,640 5,700
22 5,630 6,100 7,230 8,570 23,300 31,200 13,900 6,750 7,030 7,240 6,590 5,710
23 5,650 6,160 7,290 8,810 24,300 30,300 13,400 6,680 7,070 7,320 6,480 5,720
24 5,710 6,170 7,260 9,130 24,900 30,000 13,000 6,720 7,100 7,340 6,420 5,660
25 5,620 6,180 7,340 9,550 25,300 29,600 12,600 6,720 7,190 7,290 6,440 5,660
26 5,650 6,060 7,360 9,850 25,800 29,100 12,300 6,610 7,270 7,200 6,490 5,690
27 5,640 5,980 7,270 9,970 26,500 28,800 12,200 6,580 7,100 7,230 6,600 5,690
28 5,610 6,030 7,160 10,100 27,000 28,500 12,100 6,490 6,990 7,200 6,620 5,670
29 5,570 5,990 7,130 10,200 27,300 27,900 11,600 6,440 6,970 7,160 6,650 5,570
30 5,560   7,030 10,400 27,900 27,200 11,100 6,380 7,010 7,250 6,520 5,490
31 5,610   6,950   29,200   10,800 6,360   7,240   5,560