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USGS Daily Statistics for New Hampshire

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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 -> 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
1 627 596 733 1,720 1,420 629 430 269 191 264 538 681
2 645 573 727 1,850 1,360 681 378 270 211 261 527 653
3 647 567 736 2,040 1,300 650 349 250 214 275 581 635
4 627 642 734 2,200 1,290 600 339 226 196 260 679 620
5 607 663 735 2,220 1,280 536 331 230 181 239 633 654
6 596 649 748 2,220 1,190 528 322 227 166 249 586 707
7 607 603 749 2,160 1,070 563 286 204 168 256 571 760
8 586 600 756 2,070 977 536 256 187 166 268 610 792
9 562 612 770 1,940 955 496 243 186 187 265 634 789
10 590 581 797 1,890 971 459 296 191 198 245 626 807
11 672 595 812 1,940 933 434 357 197 215 239 604 839
12 655 631 811 1,920 919 414 333 205 262 263 588 823
13 702 606 848 1,920 923 409 327 215 326 271 595 811
14 708 580 986 1,920 960 401 341 228 296 264 592 771
15 651 551 1,040 1,900 948 396 331 219 288 263 591 775
16 592 542 1,090 1,870 918 422 347 198 270 293 578 738
17 575 555 1,120 1,870 892 436 336 183 262 346 551 669
18 541 569 1,170 1,880 872 401 320 206 243 367 510 662
19 513 573 1,200 1,850 894 369 358 241 247 345 472 677
20 508 572 1,200 1,800 890 371 322 237 256 328 489 632
21 516 578 1,250 1,730 859 393 277 223 252 330 531 623
22 534 618 1,320 1,610 831 374 248 218 236 326 562 740
23 558 701 1,350 1,590 808 358 235 205 219 311 558 763
24 619 717 1,300 1,620 740 380 241 247 214 308 524 718
25 670 755 1,330 1,590 710 480 232 259 222 368 555 637
26 705 802 1,360 1,570 721 509 213 223 242 398 635 667
27 736 807 1,470 1,540 716 474 197 196 268 432 713 699
28 732 790 1,530 1,510 708 417 201 180 289 434 683 700
29 705 783 1,560 1,450 666 423 215 162 265 426 689 692
30 689   1,570 1,420 595 422 290 159 241 483 698 668
31 638   1,640   568   300 171   554   643