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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 01092000 MERRIMACK R NR GOFFS FALLS, BELOW MANCHESTER, NH


Hillsborough County, New Hampshire
Hydrologic Unit Code 01070002
Latitude  42°56'53", Longitude  71°27'50" NAD27
Drainage area 3,092  square miles
Gage datum 108.58 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 1936-10-01 -> 2023-09-30)

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 5,220 4,610 5,550 12,800 11,700 6,130 3,930 2,730 2,030 2,540 4,690 6,080
2 5,170 4,480 5,450 13,500 11,600 6,080 3,870 2,580 2,130 2,720 4,690 6,090
3 5,040 4,430 5,540 14,100 11,300 6,270 3,850 2,530 2,040 2,820 4,760 6,100
4 4,890 4,700 5,510 14,600 11,100 6,070 3,640 2,550 1,870 2,710 5,160 5,830
5 4,810 4,850 5,430 14,800 10,900 5,720 3,490 2,420 1,810 2,600 5,030 5,560
6 4,730 4,800 5,410 15,300 10,300 5,470 3,350 2,330 1,760 2,510 4,760 5,450
7 4,770 4,710 5,560 15,000 9,700 5,330 3,190 2,260 1,910 2,690 4,610 5,820
8 4,750 4,700 5,820 14,400 9,180 5,270 3,040 2,250 1,960 2,840 4,740 6,230
9 4,700 4,610 6,060 13,900 8,910 5,100 2,930 2,400 1,970 2,870 4,810 6,000
10 4,780 4,350 6,400 13,400 8,770 4,880 2,770 2,440 1,950 2,910 5,030 5,880
11 4,930 4,300 6,510 13,500 8,580 4,690 2,800 2,570 1,960 2,920 5,130 5,950
12 4,840 4,360 6,680 13,700 8,390 4,640 2,820 2,820 2,110 2,900 5,040 6,040
13 4,960 4,380 6,900 13,800 8,480 4,550 2,800 2,690 2,150 2,950 5,050 6,180
14 4,920 4,420 7,350 13,800 8,810 4,640 2,860 2,570 2,150 2,840 5,330 6,070
15 4,850 4,420 7,770 13,900 9,060 4,830 2,920 2,540 2,140 3,060 5,330 5,990
16 4,920 4,460 7,850 14,200 8,880 4,810 2,890 2,400 2,180 3,330 5,210 5,760
17 4,800 4,430 7,890 14,900 8,650 4,620 2,820 2,270 2,120 3,470 5,210 5,480
18 4,590 4,460 8,000 14,700 8,470 4,360 2,650 2,170 2,230 3,510 5,190 5,490
19 4,500 4,450 8,140 14,500 8,300 4,150 2,580 2,150 2,240 3,500 4,900 5,520
20 4,590 4,460 8,660 14,000 8,040 3,990 2,540 2,060 2,280 3,390 4,710 5,410
21 4,630 4,500 8,990 13,700 7,850 3,850 2,600 1,980 2,510 3,700 4,940 5,230
22 4,600 4,810 9,180 13,500 7,660 3,690 2,500 1,890 3,010 4,110 5,040 5,470
23 4,540 5,290 9,430 13,300 7,200 3,630 2,480 1,950 3,110 3,980 5,020 5,620
24 4,650 5,340 9,390 13,100 6,860 3,530 2,670 1,920 2,650 3,890 4,860 5,790
25 4,920 5,590 9,500 13,100 6,880 3,620 2,590 1,850 2,440 4,170 4,820 5,910
26 5,330 5,980 9,740 12,800 6,930 3,620 2,560 1,830 2,370 4,470 5,150 6,180
27 5,650 6,010 10,200 12,700 6,780 3,780 2,380 1,770 2,360 4,480 5,620 6,080
28 5,750 5,850 10,800 12,400 6,500 3,820 2,390 1,660 2,390 4,550 5,840 5,960
29 5,550 6,140 11,400 12,200 6,290 3,860 2,470 1,790 2,390 4,780 6,040 5,900
30 5,180   11,900 12,000 6,150 4,010 2,690 2,030 2,480 4,820 6,120 5,600
31 4,850   12,400   6,160   2,840 2,070   4,760   5,360