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USGS Daily Statistics for Kansas

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Historic (pre-2007) gage-height data may contain erroneous values, such as pressure sensors encased in ice, even if they are flagged as approved. These data are made available to the public, but data users are cautioned to carefully screen the data and contact the USGS Kansas Water Science Center if they have questions or concerns about specific values.

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 06887000 BIG BLUE R NR MANHATTAN, KS


Riley County, Kansas
Hydrologic Unit Code 10270205
Latitude  39°14'14", Longitude  96°34'16" NAD27
Drainage area 9,640  square miles
Contributing drainage area 9,640  square miles
Gage datum 989.25 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 1950-10-01 -> 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 1,000 1,150 1,960 2,980 2,510 4,280 4,610 2,620 1,560 1,260 1,470 1,510
2 999 1,190 1,960 3,010 2,580 4,280 4,350 2,570 1,550 1,550 1,350 1,420
3 1,020 1,290 1,950 3,000 2,500 4,670 4,050 2,540 1,740 1,950 1,300 1,430
4 1,030 1,380 1,990 3,060 2,390 4,830 3,960 2,460 2,010 2,030 1,260 1,490
5 1,010 1,400 1,900 3,190 2,640 4,990 4,230 2,530 2,180 1,830 1,210 1,520
6 990 1,340 1,850 3,150 2,670 4,990 4,190 2,730 2,210 1,480 1,270 1,540
7 962 1,350 1,710 3,240 2,650 4,870 4,070 2,770 2,060 1,430 1,330 1,560
8 945 1,350 1,630 3,310 2,690 4,750 4,110 2,910 2,030 1,610 1,350 1,610
9 815 1,370 1,820 3,140 3,040 4,650 3,990 2,970 1,960 1,590 1,380 1,620
10 732 1,400 1,780 3,020 2,990 4,300 4,030 2,840 1,930 1,610 1,420 1,600
11 723 1,340 1,660 2,960 3,250 4,150 4,580 2,490 1,930 1,470 1,440 1,560
12 727 1,210 1,470 2,750 3,270 4,150 5,010 2,370 1,960 1,460 1,480 1,540
13 775 1,110 1,410 2,960 3,180 4,270 5,110 2,450 2,170 1,450 1,510 1,530
14 768 1,150 1,430 3,040 3,250 4,380 4,820 2,430 2,380 1,460 1,510 1,540
15 740 1,150 1,390 2,800 3,380 4,420 4,620 2,440 2,210 1,420 1,520 1,550
16 769 1,170 1,520 2,410 3,490 4,420 4,380 2,550 2,210 1,390 1,600 1,560
17 727 1,200 1,650 2,280 3,550 4,780 4,140 2,460 2,040 1,380 1,650 1,590
18 708 1,210 1,740 2,150 3,550 4,370 4,000 2,300 2,010 1,570 1,630 1,550
19 726 1,280 1,780 2,070 3,550 4,610 4,240 2,160 1,960 1,620 1,670 1,430
20 739 1,340 1,940 2,080 3,490 4,560 3,920 2,060 1,920 1,570 1,740 1,340
21 774 1,240 2,040 2,170 3,210 4,510 3,590 1,980 1,650 1,610 1,840 1,290
22 788 1,240 2,150 2,310 3,120 4,670 3,530 1,910 1,450 1,650 1,900 1,310
23 790 1,390 2,250 2,220 3,420 4,650 3,590 1,850 1,450 1,670 1,920 1,270
24 886 1,460 2,380 2,120 3,470 4,370 3,420 1,770 1,460 1,760 1,860 1,190
25 963 1,450 2,640 1,970 3,420 4,110 3,440 1,940 1,390 1,870 1,830 1,170
26 996 1,440 2,870 2,140 3,340 4,220 3,620 1,920 1,380 1,840 1,800 1,170
27 1,030 1,640 2,930 2,450 3,460 4,640 3,410 1,610 1,370 1,810 1,600 1,110
28 1,060 1,800 2,960 2,370 3,550 4,860 3,180 1,500 1,230 1,780 1,580 947
29 1,100 1,290 2,950 2,290 3,660 5,060 3,150 1,450 1,180 1,790 1,550 910
30 1,130   3,070 2,200 3,950 4,970 2,920 1,500 1,120 1,770 1,550 884
31 1,120   3,040   4,490   2,630 1,530   1,670   916