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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 01085000 CONTOOCOOK RIVER NEAR HENNIKER, NH


Merrimack County, New Hampshire
Hydrologic Unit Code 01070003
Latitude  43°09'07", Longitude  71°51'28" NAD27
Drainage area 368  square miles
Gage datum 469.70 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 1939-10-01 -> 2021-09-30)

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
1 575 578 730 1,740 1,400 644 433 203 180 257 484 660
2 591 558 723 1,860 1,320 701 377 225 183 252 483 625
3 595 555 731 2,060 1,270 672 298 220 165 267 555 611
4 577 629 733 2,250 1,270 617 256 206 156 251 666 595
5 556 636 735 2,270 1,260 553 222 218 157 225 629 635
6 550 620 751 2,280 1,170 545 232 222 150 231 584 691
7 569 583 746 2,220 1,050 585 224 198 151 239 570 742
8 557 589 736 2,120 969 559 212 182 153 252 613 771
9 538 607 751 1,980 960 513 201 178 162 249 640 775
10 560 576 787 1,940 986 465 191 184 163 230 642 803
11 635 586 806 2,000 951 441 175 191 182 224 620 819
12 619 627 800 1,980 941 424 171 203 233 253 595 774
13 657 598 827 1,990 950 415 192 213 304 265 580 767
14 637 570 979 1,990 993 408 218 229 272 255 574 741
15 589 542 1,050 1,980 985 405 239 220 268 251 578 758
16 541 533 1,100 1,950 952 431 240 199 251 285 566 727
17 518 536 1,140 1,940 922 444 221 184 243 337 535 656
18 488 520 1,190 1,940 903 400 209 208 226 357 495 625
19 468 511 1,200 1,910 931 373 203 243 233 336 459 592
20 470 520 1,210 1,850 924 379 193 238 242 325 479 548
21 487 541 1,260 1,780 883 402 178 214 241 331 530 565
22 514 591 1,330 1,660 853 386 172 210 224 317 569 712
23 545 653 1,360 1,620 830 371 176 195 207 300 562 716
24 616 652 1,300 1,620 759 393 196 188 197 300 522 625
25 668 714 1,320 1,610 732 499 195 179 195 367 556 533
26 688 783 1,350 1,600 749 529 182 163 220 388 647 523
27 699 793 1,470 1,580 750 481 171 153 255 392 715 573
28 695 782 1,530 1,550 740 417 179 150 282 394 679 613
29 675 783 1,560 1,490 695 417 196 147 261 398 685 621
30 667   1,570 1,450 614 420 214 144 235 463 698 609
31 617   1,660   580   214 156   513   591