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USGS Surface-Water 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 01081500 MERRIMACK RIVER AT FRANKLIN JUNCTION, NH


Merrimack County, New Hampshire
Hydrologic Unit Code 01070002
Latitude  43°25'22", Longitude  71°39'12" NAD27
Drainage area 1,507  square miles
Gage datum 250.58 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 1902-10-01 -> 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 2,420 2,130 2,300 5,960 7,110 3,210 2,210 1,620 1,470 1,950 2,520 3,080
2 2,410 2,080 2,290 6,280 6,880 3,320 2,250 1,480 1,480 1,950 2,490 3,000
3 2,320 2,080 2,420 6,220 6,700 3,300 2,290 1,520 1,350 1,800 2,650 2,830
4 2,250 2,150 2,350 6,240 6,790 3,230 2,110 1,540 1,400 1,630 3,120 2,680
5 2,210 2,150 2,270 6,100 6,470 3,030 2,000 1,550 1,320 1,500 3,000 2,510
6 2,240 2,140 2,300 6,250 6,020 2,880 1,940 1,540 1,260 1,510 2,510 2,780
7 2,350 2,100 2,430 6,660 5,490 2,820 1,820 1,480 1,290 1,740 2,520 3,010
8 2,250 2,110 2,570 6,930 5,350 2,660 1,750 1,460 1,300 1,720 2,540 2,880
9 2,260 2,080 2,660 6,590 5,240 2,660 1,910 1,500 1,280 1,790 2,670 2,870
10 2,570 2,000 2,800 6,200 5,210 2,770 1,950 1,590 1,320 1,810 2,700 2,710
11 2,610 2,000 2,800 6,280 4,960 2,690 1,880 1,770 1,450 1,770 2,510 2,970
12 2,380 2,120 2,790 6,770 4,740 2,680 1,820 1,720 1,440 1,680 2,380 3,040
13 2,410 2,300 3,190 7,030 4,700 2,750 1,750 1,580 1,500 1,610 2,460 3,010
14 2,460 2,120 3,290 7,070 4,750 2,540 1,750 1,520 1,470 1,650 2,610 2,800
15 2,540 2,050 3,280 7,340 4,790 2,530 1,680 1,420 1,440 1,670 2,550 2,850
16 2,520 2,120 3,400 7,610 4,780 2,550 1,570 1,380 1,440 1,810 2,500 2,570
17 2,310 2,110 3,450 7,600 4,790 2,450 1,470 1,390 1,400 1,920 2,540 2,370
18 2,210 2,010 3,600 7,590 5,060 2,500 1,460 1,360 1,470 2,080 2,500 2,430
19 2,260 2,010 4,180 7,630 4,680 2,520 1,460 1,310 1,490 1,970 2,440 2,540
20 2,310 1,990 3,940 7,630 4,710 2,340 1,520 1,270 1,490 1,940 2,650 2,480
21 2,220 1,990 3,790 7,740 4,620 2,180 1,540 1,270 1,730 2,240 2,710 2,610
22 2,190 2,020 4,090 7,460 4,410 2,170 1,470 1,270 1,900 2,060 2,530 2,780
23 2,310 2,140 3,930 7,490 4,360 2,110 1,640 1,290 1,640 1,830 2,430 2,800
24 2,340 2,140 3,870 7,600 4,100 2,140 1,640 1,270 1,470 2,010 2,440 2,910
25 2,510 2,250 4,020 7,350 3,980 2,090 1,600 1,240 1,460 2,380 2,520 2,830
26 2,660 2,610 4,410 7,210 3,740 2,100 1,510 1,220 1,420 2,480 2,560 2,820
27 2,600 2,480 4,450 7,160 3,670 2,150 1,480 1,190 1,500 2,430 2,630 2,820
28 2,440 2,350 5,050 6,840 3,740 2,070 1,490 1,190 1,500 2,400 2,620 2,850
29 2,330 2,380 5,340 7,180 3,660 2,180 1,540 1,360 1,510 2,580 2,760 2,670
30 2,210   5,550 7,270 3,400 2,320 1,680 1,380 1,660 2,520 2,770 2,460
31 2,160   5,590   3,260   1,650 1,380   2,610   2,460