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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 07072500 Black River at Black Rock, AR


Lawrence County, Arkansas
Hydrologic Unit Code 11010009
Latitude  36°06'09", Longitude  91°05'52" NAD83
Drainage area 7,370  square miles
Gage datum 229.56 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 1947-10-01 -> 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 11,600 11,100 12,400 17,400 18,300 11,100 6,110 4,730 4,060 4,340 5,560 8,640
2 12,200 11,200 12,500 16,900 18,500 10,900 6,100 4,730 4,120 4,230 5,460 8,610
3 12,200 11,000 12,600 16,500 19,100 10,600 6,030 4,660 4,190 4,160 5,430 8,640
4 12,200 11,000 12,700 17,100 18,700 10,300 6,150 4,530 4,100 4,070 5,430 9,480
5 12,500 10,800 12,600 17,400 18,000 9,900 6,090 4,430 4,040 3,990 5,520 10,400
6 12,300 10,600 12,400 16,800 17,900 9,670 6,140 4,400 3,950 4,080 5,740 9,730
7 11,600 10,500 12,200 15,900 17,700 9,550 6,080 4,390 3,870 4,070 6,060 9,420
8 11,000 10,300 12,300 15,400 17,800 9,230 6,080 4,390 3,820 3,960 6,100 9,170
9 10,700 9,970 12,700 15,100 17,300 8,890 6,050 4,350 3,800 4,030 5,910 9,000
10 10,700 9,950 13,700 14,700 16,900 8,820 5,910 4,420 3,800 4,210 5,690 8,840
11 10,700 10,100 14,000 15,000 16,800 8,630 5,820 4,390 3,900 4,170 5,550 8,840
12 10,500 10,400 14,100 14,900 16,600 8,500 5,760 4,360 4,000 4,080 5,380 8,870
13 10,400 10,700 13,800 14,800 16,500 8,400 5,730 4,350 3,920 4,000 5,370 8,560
14 10,900 11,400 14,100 15,000 16,300 8,250 5,630 4,380 3,820 4,040 5,540 8,410
15 10,800 12,100 14,200 15,200 16,000 8,070 5,510 4,520 3,740 4,000 5,690 8,550
16 10,600 12,200 13,900 15,000 15,500 7,850 5,400 4,760 3,800 3,980 6,060 8,760
17 10,400 12,000 13,900 14,600 15,200 7,590 5,340 4,720 3,910 4,030 6,410 8,790
18 10,200 12,000 14,100 14,200 14,800 7,410 5,190 4,630 3,950 3,980 7,120 8,830
19 9,990 11,700 14,900 14,500 14,400 7,350 5,140 4,750 3,890 3,940 7,590 8,640
20 9,820 11,700 15,600 14,800 14,000 7,130 5,130 4,750 3,870 3,890 7,610 8,530
21 9,870 12,000 15,600 15,000 13,800 6,980 5,030 4,700 3,940 3,940 7,530 8,620
22 9,940 12,300 15,500 14,900 13,700 6,810 4,980 4,560 3,970 3,960 7,310 9,630
23 10,100 12,500 15,300 15,400 13,700 6,710 4,940 4,440 4,220 4,050 7,440 9,610
24 10,300 12,500 15,300 16,000 13,500 6,760 4,950 4,370 4,560 4,210 7,850 9,410
25 11,000 12,800 15,200 16,500 13,000 6,870 4,870 4,290 4,540 4,180 8,170 10,100
26 10,900 12,800 15,200 17,600 12,600 6,650 4,770 4,180 4,650 4,120 8,320 10,100
27 10,600 12,700 15,200 17,500 12,700 6,460 4,740 4,120 4,600 4,120 8,540 10,100
28 10,500 12,700 15,900 17,400 13,100 6,340 4,670 4,140 4,530 4,280 8,990 10,700
29 10,400 9,070 16,700 17,400 12,500 6,250 4,660 4,130 4,430 4,340 8,830 11,200
30 10,500   16,200 17,400 11,900 6,180 4,740 4,170 4,410 4,720 8,640 11,000
31 10,900   17,100   11,500   4,770 4,110   5,410   10,900