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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 -> 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 1,710 1,290 1,740 6,540 6,440 7,450 6,020 2,030 1,940 3,160 3,030 2,530
2 1,680 1,280 1,790 6,570 6,610 7,250 5,460 1,980 1,790 3,160 2,970 2,530
3 1,660 1,260 1,810 6,260 6,540 6,770 4,930 1,960 1,720 3,030 2,930 2,430
4 1,630 1,240 1,900 6,000 6,470 6,150 4,670 1,980 1,680 3,320 2,950 2,350
5 1,610 1,220 2,010 5,870 6,260 5,620 4,460 1,970 1,830 3,500 2,950 2,270
6 1,580 1,200 2,160 5,590 5,820 5,170 4,270 2,000 1,770 3,730 2,950 2,130
7 1,570 1,160 2,270 5,260 5,350 4,860 4,310 1,990 1,760 4,020 2,970 2,010
8 1,540 1,130 2,500 5,060 5,080 4,650 4,640 1,930 1,760 4,060 3,010 1,940
9 1,490 1,120 2,650 5,160 4,910 4,540 4,940 1,910 1,690 4,040 3,030 1,870
10 1,440 1,120 2,650 5,590 4,830 4,460 4,780 1,940 1,640 4,100 3,040 1,810
11 1,380 1,130 2,630 6,100 4,740 4,470 4,280 1,810 1,690 4,220 3,020 1,760
12 1,320 1,170 2,670 6,250 4,880 4,380 3,970 1,740 1,800 4,260 2,940 1,750
13 1,290 1,270 3,360 6,310 5,270 4,130 3,890 1,730 2,050 4,430 2,820 1,790
14 1,270 1,420 4,790 6,330 5,380 4,060 3,960 1,770 2,560 4,600 2,760 1,800
15 1,250 1,430 5,760 6,320 5,540 4,200 3,740 1,830 3,270 4,610 2,760 1,810
16 1,210 1,400 7,640 6,260 5,400 4,140 3,640 1,830 3,990 4,310 2,800 1,810
17 1,180 1,380 9,040 6,060 5,250 4,180 3,600 1,790 4,890 4,000 2,840 1,780
18 1,180 1,390 7,920 5,890 5,180 4,240 3,530 1,830 5,460 3,810 2,870 1,720
19 1,190 1,400 6,950 5,910 5,080 4,110 3,480 1,910 5,490 3,670 2,900 1,710
20 1,210 1,490 6,430 6,040 5,240 4,030 3,560 1,970 5,280 3,550 2,930 1,720
21 1,260 1,630 6,050 6,160 5,180 4,210 3,430 1,960 5,250 3,410 3,020 1,710
22 1,300 1,720 5,820 6,150 5,030 4,470 3,200 2,000 5,460 3,310 3,000 1,790
23 1,420 1,810 5,800 6,110 5,000 4,760 3,080 2,040 5,710 3,230 2,920 1,790
24 1,530 1,840 5,780 6,080 5,240 5,820 2,980 2,040 6,260 3,230 2,840 1,800
25 1,530 1,820 5,930 6,210 5,240 7,050 2,850 2,020 6,300 3,230 2,750 1,730
26 1,460 1,810 6,040 6,320 5,390 7,470 2,750 2,040 5,660 3,170 2,680 1,730
27 1,380 1,860 6,000 6,330 5,820 6,710 2,660 1,940 4,810 3,120 2,570 1,770
28 1,340 1,910 6,100 6,280 5,990 6,300 2,490 1,890 4,210 3,100 2,460 1,790
29 1,330 4,460 6,260 6,110 6,290 6,690 2,370 1,850 3,790 3,020 2,500 1,800
30 1,320   6,250 6,130 7,040 6,710 2,210 1,910 3,400 2,990 2,610 1,770
31 1,310   6,290   7,500   2,110 1,980   3,030   1,730