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USGS Daily Statistics for New Hampshire

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To view real-time groundwater levels in New Hampshire. click here

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 109.27 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 1936-10-01 -> 2019-09-30)

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 5,120 4,610 5,510 12,900 11,600 6,260 3,920 2,580 2,050 2,580 4,570 6,080
2 5,050 4,490 5,440 13,500 11,300 6,230 3,850 2,470 2,120 2,770 4,520 5,960
3 4,900 4,440 5,550 14,100 11,100 6,430 3,770 2,440 2,010 2,890 4,680 6,010
4 4,760 4,720 5,510 14,700 10,900 6,240 3,500 2,490 1,810 2,760 5,150 5,800
5 4,680 4,860 5,430 15,000 10,700 5,870 3,310 2,370 1,770 2,650 5,060 5,550
6 4,580 4,810 5,410 15,600 10,100 5,600 3,190 2,290 1,730 2,550 4,800 5,450
7 4,640 4,710 5,560 15,300 9,550 5,440 3,090 2,230 1,910 2,730 4,670 5,840
8 4,640 4,710 5,810 14,700 9,120 5,370 2,970 2,230 1,950 2,900 4,810 6,220
9 4,630 4,620 6,040 14,100 8,920 5,210 2,860 2,350 1,970 2,930 4,890 5,970
10 4,740 4,350 6,400 13,500 8,840 4,970 2,670 2,370 1,920 2,980 5,130 5,860
11 4,910 4,300 6,520 13,600 8,660 4,780 2,630 2,530 1,940 2,990 5,240 5,910
12 4,810 4,350 6,670 13,900 8,460 4,710 2,560 2,820 2,120 2,960 5,130 5,990
13 4,830 4,370 6,890 14,000 8,580 4,620 2,500 2,690 2,170 3,010 5,080 6,140
14 4,700 4,420 7,310 14,000 8,970 4,740 2,590 2,570 2,170 2,890 5,310 6,010
15 4,650 4,430 7,750 14,000 9,250 4,920 2,690 2,550 2,160 3,040 5,340 5,830
16 4,780 4,470 7,870 14,300 9,050 4,900 2,660 2,400 2,200 3,330 5,230 5,570
17 4,650 4,430 7,930 15,000 8,790 4,710 2,570 2,280 2,140 3,480 5,250 5,310
18 4,470 4,410 8,050 14,900 8,570 4,420 2,360 2,170 2,260 3,500 5,220 5,380
19 4,400 4,360 8,160 14,700 8,430 4,190 2,290 2,140 2,280 3,470 4,940 5,450
20 4,510 4,380 8,660 14,300 8,200 4,040 2,240 2,030 2,320 3,390 4,750 5,400
21 4,580 4,440 8,990 13,900 7,980 3,910 2,320 1,950 2,540 3,740 4,990 5,230
22 4,570 4,770 9,200 13,700 7,740 3,740 2,270 1,890 3,070 4,180 5,100 5,490
23 4,530 5,250 9,480 13,400 7,290 3,680 2,280 1,950 3,170 4,050 5,100 5,560
24 4,660 5,250 9,440 13,200 6,960 3,590 2,530 1,890 2,690 3,960 4,920 5,570
25 4,940 5,510 9,530 13,100 7,010 3,700 2,490 1,800 2,430 4,250 4,840 5,660
26 5,330 5,950 9,730 12,900 7,090 3,680 2,480 1,790 2,340 4,560 5,150 5,770
27 5,610 6,000 10,100 12,700 6,960 3,830 2,300 1,750 2,350 4,540 5,650 5,670
28 5,720 5,790 10,700 12,400 6,660 3,830 2,330 1,650 2,400 4,550 5,880 5,640
29 5,530 5,880 11,500 12,300 6,430 3,830 2,410 1,800 2,410 4,770 6,060 5,650
30 5,170   11,900 12,100 6,260 3,980 2,560 2,050 2,520 4,850 6,140 5,420
31 4,840   12,400   6,270   2,660 2,090   4,750   5,240