Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

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 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
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 2025-09-30)

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 5,290 4,660 5,580 12,900 11,700 6,090 3,920 2,730 2,060 2,540 4,680 6,070
2 5,220 4,530 5,470 13,500 11,500 6,040 3,860 2,580 2,150 2,710 4,670 6,090
3 5,080 4,470 5,580 14,100 11,300 6,220 3,830 2,540 2,060 2,810 4,740 6,090
4 4,920 4,730 5,570 14,600 11,100 6,030 3,620 2,560 1,880 2,690 5,130 5,840
5 4,850 4,880 5,510 14,800 10,900 5,680 3,470 2,420 1,820 2,590 4,980 5,580
6 4,760 4,820 5,510 15,300 10,300 5,430 3,340 2,340 1,760 2,500 4,710 5,470
7 4,800 4,730 5,740 15,000 9,710 5,300 3,180 2,280 1,920 2,670 4,570 5,820
8 4,770 4,720 6,050 14,500 9,180 5,230 3,030 2,260 1,960 2,820 4,690 6,210
9 4,720 4,630 6,270 13,900 8,910 5,070 2,910 2,400 1,970 2,850 4,760 5,990
10 4,860 4,370 6,600 13,500 8,760 4,850 2,760 2,450 1,960 2,900 4,980 5,870
11 5,070 4,330 6,730 13,500 8,560 4,680 2,790 2,600 1,970 2,900 5,080 6,000
12 4,990 4,390 6,890 13,700 8,370 4,600 2,800 2,850 2,140 2,880 4,980 6,200
13 5,100 4,410 7,080 13,900 8,450 4,530 2,790 2,710 2,180 2,920 4,990 6,320
14 5,090 4,450 7,470 14,000 8,770 4,610 2,840 2,570 2,190 2,820 5,310 6,170
15 5,000 4,440 7,860 14,100 9,010 4,800 2,900 2,540 2,170 3,040 5,310 6,050
16 5,040 4,470 7,930 14,400 8,830 4,780 2,870 2,400 2,200 3,310 5,190 5,810
17 4,890 4,450 7,970 15,000 8,600 4,600 2,800 2,270 2,130 3,450 5,190 5,510
18 4,660 4,480 8,060 14,800 8,430 4,330 2,640 2,170 2,230 3,490 5,160 5,600
19 4,560 4,460 8,190 14,500 8,250 4,120 2,570 2,150 2,280 3,470 4,880 5,820
20 4,640 4,470 8,680 14,000 8,000 3,960 2,520 2,070 2,330 3,370 4,700 5,650
21 4,670 4,510 9,000 13,600 7,810 3,830 2,580 2,000 2,550 3,670 4,920 5,490
22 4,640 4,810 9,180 13,400 7,630 3,680 2,490 1,930 3,030 4,090 5,020 5,730
23 4,580 5,290 9,430 13,200 7,170 3,620 2,470 1,980 3,110 4,000 5,030 5,860
24 4,690 5,330 9,400 13,100 6,820 3,530 2,660 1,950 2,650 3,900 4,880 6,010
25 4,960 5,580 9,520 13,000 6,840 3,640 2,590 1,870 2,440 4,160 4,840 6,060
26 5,380 5,960 9,750 12,800 6,880 3,620 2,560 1,870 2,380 4,440 5,150 6,260
27 5,730 5,990 10,200 12,600 6,740 3,770 2,370 1,820 2,370 4,440 5,610 6,140
28 5,830 5,840 10,800 12,400 6,460 3,800 2,380 1,710 2,410 4,510 5,870 6,020
29 5,630 6,150 11,500 12,200 6,270 3,840 2,460 1,830 2,400 4,740 6,060 5,980
30 5,240   12,000 12,000 6,130 3,990 2,670 2,050 2,480 4,780 6,120 5,690
31 4,900   12,500   6,130   2,830 2,100   4,730   5,450