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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 06485950 BIG SIOUX RIVER AT SIOUX CITY, IA


Woodbury County, Iowa
Hydrologic Unit Code 10170203
Latitude  42°31'28", Longitude  96°28'48.7" NAD27
Drainage area 8,430  square miles
Contributing drainage area 7,546  square miles
Gage datum 1,060 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 2014-10-01 -> 2021-09-30)

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 2,360 1,800 2,390 8,680 8,400 9,940 8,610 2,710 2,330 4,470 4,200 3,630
2 2,310 1,790 2,440 8,670 8,700 9,380 7,790 2,650 2,260 4,480 4,130 3,630
3 2,280 1,760 2,460 8,130 8,540 8,680 7,050 2,620 2,190 4,280 4,070 3,480
4 2,230 1,730 2,580 7,560 8,420 7,910 6,640 2,660 2,180 4,200 4,110 3,350
5 2,210 1,700 2,740 7,100 8,090 7,220 6,260 2,630 2,420 4,440 4,110 3,230
6 2,160 1,660 2,940 6,730 7,440 6,620 5,980 2,660 2,340 4,750 4,120 3,020
7 2,140 1,620 3,080 6,460 6,760 6,210 6,040 2,620 2,290 5,140 4,150 2,850
8 2,100 1,570 3,410 6,290 6,380 5,950 6,230 2,540 2,300 5,210 4,190 2,760
9 2,030 1,550 3,590 6,370 6,140 5,800 6,600 2,480 2,200 5,180 4,180 2,650
10 1,940 1,550 3,570 6,750 6,040 5,680 6,490 2,420 2,130 5,280 4,180 2,550
11 1,850 1,580 3,530 7,110 5,870 5,730 5,790 2,300 2,210 5,440 4,140 2,470
12 1,760 1,640 3,560 7,050 6,100 5,610 5,350 2,250 2,390 5,500 4,030 2,460
13 1,710 1,800 4,560 6,910 6,610 5,260 5,280 2,260 2,760 5,730 3,840 2,520
14 1,680 2,050 6,700 6,850 6,760 5,160 5,430 2,310 3,550 6,990 3,740 2,560
15 1,660 2,060 8,160 6,780 6,840 5,240 5,140 2,350 4,620 7,000 3,760 2,550
16 1,590 2,000 11,000 6,760 6,490 5,200 5,010 2,340 5,690 6,520 3,830 2,500
17 1,550 1,970 13,100 6,720 6,270 5,320 4,980 2,320 7,050 6,030 3,910 2,440
18 1,550 1,990 11,400 6,700 6,220 5,510 4,880 2,370 7,900 5,700 3,970 2,340
19 1,560 2,010 9,910 6,870 6,160 5,410 4,830 2,470 7,960 5,450 3,990 2,280
20 1,600 2,150 9,110 7,180 6,480 5,290 4,970 2,570 7,640 5,260 4,060 2,220
21 1,680 2,360 8,490 7,470 6,450 5,640 4,820 2,560 7,610 5,060 4,210 2,150
22 1,750 2,510 8,080 7,500 6,280 6,080 4,500 2,630 7,930 4,890 4,180 2,210
23 1,940 2,660 7,950 7,430 6,280 6,510 4,320 2,680 8,300 4,720 4,060 2,210
24 2,120 2,690 7,800 7,440 6,690 8,150 4,160 2,690 9,100 4,690 3,980 2,260
25 2,130 2,670 7,880 7,710 6,730 10,000 3,970 2,660 9,150 4,640 3,910 2,190
26 2,020 2,640 7,960 7,980 7,010 10,600 3,800 2,660 8,190 4,580 3,830 2,240
27 1,900 2,710 7,800 8,060 7,690 9,550 3,620 2,510 6,920 4,520 3,660 2,340
28 1,850 2,790 7,880 8,010 7,960 8,980 3,380 2,460 6,040 4,440 3,520 2,410
29 1,840 4,460 8,160 7,790 8,450 9,560 3,220 2,400 5,420 4,330 3,580 2,450
30 1,820   8,200 7,880 9,580 9,580 2,990 2,530 4,830 4,220 3,760 2,430
31 1,810   8,260   10,300   2,820 2,480   4,210   2,380