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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 06485910 BIG SIOUX RIVER NEAR JEFFERSON, SD


Union County, South Dakota
Hydrologic Unit Code 10170203
Latitude  42°37'35", Longitude  96°30'55" NAD27
Drainage area 8,400  square miles
Contributing drainage area 7,516  square miles
Gage datum 1,070 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 1,590 1,070 1,500 6,560 6,070 7,080 5,960 2,050 1,920 2,900 2,620 2,030
2 1,550 1,060 1,530 6,530 6,220 6,920 5,230 2,010 1,730 2,930 2,560 1,990
3 1,520 1,040 1,540 6,170 6,290 6,400 4,600 1,960 1,630 2,810 2,500 1,940
4 1,490 1,020 1,630 5,930 6,290 5,680 4,410 1,910 1,560 3,150 2,480 1,880
5 1,480 990 1,840 5,720 6,110 5,070 4,200 1,860 1,770 3,410 2,460 1,810
6 1,450 967 2,050 5,330 5,680 4,600 3,960 1,840 1,700 3,670 2,450 1,740
7 1,430 946 2,220 4,930 5,240 4,260 4,010 1,850 1,690 3,980 2,460 1,630
8 1,390 916 2,440 4,700 4,940 3,990 4,480 1,840 1,690 4,100 2,460 1,480
9 1,320 902 2,710 4,820 4,750 3,840 4,750 1,960 1,590 4,150 2,430 1,440
10 1,240 895 2,800 5,320 4,680 3,940 4,510 1,970 1,530 4,210 2,380 1,470
11 1,190 903 2,810 5,780 4,740 3,910 4,030 1,800 1,550 4,270 2,320 1,520
12 1,170 921 2,870 5,860 4,920 3,730 3,760 1,710 1,750 4,290 2,240 1,580
13 1,150 985 3,340 5,850 5,220 3,520 3,730 1,650 1,910 4,330 2,150 1,630
14 1,130 1,150 3,990 5,890 5,230 3,440 3,650 1,690 2,030 4,370 2,100 1,640
15 1,110 1,180 4,930 5,890 5,300 3,620 3,520 1,660 2,320 4,260 2,090 1,660
16 1,060 1,130 7,600 5,810 5,210 3,580 3,450 1,610 3,230 4,040 2,100 1,650
17 1,030 1,090 8,430 5,520 5,080 3,640 3,370 1,650 4,630 3,800 2,110 1,610
18 1,020 1,080 7,690 5,300 5,000 3,610 3,240 1,820 5,120 3,580 2,120 1,550
19 1,020 1,100 6,850 5,350 5,060 3,600 3,210 1,990 5,010 3,390 2,130 1,540
20 1,050 1,190 6,490 5,550 5,150 3,630 3,310 2,100 4,690 3,210 2,170 1,560
21 1,080 1,350 6,200 5,700 5,010 3,870 3,260 2,230 4,510 3,060 2,320 1,630
22 1,110 1,440 5,970 5,730 4,900 4,100 3,060 2,430 4,450 2,950 2,240 1,680
23 1,170 1,550 5,910 5,720 4,890 4,470 2,990 2,480 5,110 2,890 2,190 1,630
24 1,280 1,570 5,890 5,730 4,980 5,830 2,960 2,450 5,750 2,900 2,170 1,540
25 1,300 1,540 6,000 5,820 4,950 7,050 2,870 2,270 5,710 2,900 2,150 1,530
26 1,220 1,520 6,020 5,910 5,010 6,980 2,810 2,140 5,130 2,860 2,130 1,550
27 1,160 1,580 5,960 5,930 5,380 6,330 2,720 1,970 4,380 2,820 2,070 1,590
28 1,130 1,640 6,090 5,860 5,600 6,210 2,590 1,900 3,790 2,770 2,020 1,670
29 1,110 3,600 6,200 5,720 6,010 6,760 2,490 1,830 3,400 2,720 2,000 1,680
30 1,090   6,250 5,760 6,930 6,720 2,260 1,970 3,080 2,690 2,030 1,650
31 1,080   6,370   7,070   2,120 2,060   2,670   1,620