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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 08012150 Mermentau River At Mermentau, LA


Jefferson Davis Parish, Louisiana
Hydrologic Unit Code 08080202
Latitude  30°11'24.0", Longitude  92°35'26.0" NAD83
Drainage area 1,381.00  square miles
Gage datum -1.29 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 1989-10-01 -> 2015-09-30)

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 2,540 3,330 3,080 2,240 2,160 1,940 2,420 545 1,310 606 4,120 1,510
2 2,710 3,620 3,360 1,850 2,380 1,680 2,220 640 1,520 759 3,190 1,260
3 2,460 3,390 3,430 1,770 2,400 1,420 2,170 540 1,810 1,000 3,660 1,320
4 2,640 3,300 2,870 2,290 2,340 1,270 2,020 498 2,210 1,160 2,950 1,590
5 3,060 3,620 2,900 2,550 2,200 1,180 1,770 459 2,170 1,190 3,230 2,000
6 3,470 3,660 2,920 2,130 2,270 1,160 1,610 430 2,150 1,330 3,650 1,830
7 3,810 3,740 2,500 1,920 1,930 1,290 1,440 320 1,960 1,300 3,180 1,740
8 4,320 2,960 2,600 2,260 1,810 1,410 1,400 285 1,820 1,100 2,420 1,700
9 3,870 2,390 3,010 2,260 2,020 1,530 1,370 282 1,590 962 2,220 1,760
10 5,310 2,110 2,780 2,120 2,090 1,970 1,260 277 1,470 1,360 1,960 1,940
11 5,470 2,370 2,750 2,760 2,480 1,800 1,130 267 1,520 1,590 1,620 1,500
12 6,010 2,560 3,250 2,810 2,710 1,840 1,070 336 1,510 1,450 1,580 1,500
13 5,860 2,650 3,140 2,630 2,860 1,680 1,060 370 1,210 1,490 1,160 1,660
14 5,830 2,930 3,450 2,580 2,980 1,560 1,360 409 1,250 1,600 1,080 1,930
15 4,900 2,940 3,730 2,740 3,090 1,250 1,330 541 1,130 1,120 1,180 2,120
16 5,000 3,440 3,690 2,680 3,510 1,110 1,520 643 914 1,060 1,210 2,100
17 4,580 3,660 3,950 2,530 3,660 1,130 1,590 542 579 1,330 1,280 2,320
18 4,420 3,350 3,580 2,320 3,090 1,120 1,570 690 599 1,370 1,900 2,570
19 4,620 3,480 3,470 2,470 2,900 1,060 1,560 882 943 1,280 1,960 2,400
20 4,060 3,000 2,850 2,400 1,050 1,000 1,410 609 738 1,330 2,090 2,000
21 4,320 3,190 2,630 2,270 945 1,180 1,320 814 623 1,260 1,830 1,830
22 4,110 3,970 2,430 2,000 1,250 1,600 1,370 771 756 1,380 1,790 2,060
23 3,950 4,000 2,470 1,750 734 1,750 1,400 508 720 1,290 1,720 1,990
24 3,700 3,610 2,040 1,650 830 1,730 1,390 552 683 1,270 1,580 1,910
25 3,600 3,940 1,850 1,910 959 2,000 1,340 684 850 1,490 1,560 2,080
26 3,910 4,180 2,000 2,180 1,080 2,210 1,280 546 845 1,560 1,590 1,880
27 3,690 3,640 1,810 2,390 1,100 2,280 1,230 533 836 1,840 1,460 1,760
28 3,410 3,410 1,720 2,250 1,920 2,400 1,270 556 712 2,290 1,270 2,120
29 3,370 2,110 2,030 2,390 2,210 2,670 996 499 303 3,010 1,510 2,320
30 4,190   2,520 2,540 2,110 2,510 738 694 521 3,470 1,450 2,470
31 3,550   2,460   2,140   621 1,060   3,720   2,630