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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 -> 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
1 616 582 733 1,720 1,390 639 418 262 186 258 531 680
2 637 561 727 1,850 1,310 692 367 266 209 255 523 653
3 642 558 736 2,040 1,260 658 305 248 211 271 581 635
4 621 637 734 2,190 1,250 607 269 224 195 256 682 616
5 602 660 735 2,210 1,250 542 238 228 179 236 636 646
6 594 647 748 2,210 1,170 534 241 227 165 247 589 703
7 606 603 749 2,150 1,060 570 229 203 168 253 574 759
8 585 600 756 2,060 971 544 219 186 166 263 613 793
9 559 612 770 1,940 954 503 221 184 185 258 638 789
10 576 581 797 1,890 974 464 229 188 197 239 630 807
11 639 595 812 1,950 937 439 210 196 211 234 607 817
12 622 631 811 1,920 925 419 220 204 250 259 591 788
13 667 606 848 1,930 931 413 260 215 313 268 599 782
14 659 580 986 1,930 970 406 293 228 286 262 598 750
15 609 551 1,040 1,910 959 400 295 219 282 260 597 761
16 563 542 1,090 1,890 928 426 278 197 266 291 582 728
17 556 555 1,120 1,890 903 436 246 182 258 344 557 660
18 526 569 1,170 1,900 883 392 258 205 239 363 513 632
19 499 573 1,200 1,870 906 364 316 240 241 341 475 602
20 496 572 1,200 1,830 902 369 289 236 249 326 492 559
21 505 578 1,250 1,750 860 391 252 223 247 331 534 572
22 526 618 1,320 1,630 829 375 228 218 232 318 565 707
23 552 701 1,350 1,600 807 359 219 206 217 301 553 739
24 616 717 1,300 1,600 740 382 228 248 213 301 517 698
25 666 755 1,330 1,570 713 484 223 259 219 365 550 621
26 692 802 1,360 1,560 726 511 207 216 238 397 635 655
27 712 807 1,470 1,540 725 464 193 190 266 431 710 689
28 708 790 1,530 1,510 715 403 196 174 289 432 676 689
29 685 783 1,560 1,460 675 403 212 158 265 425 686 677
30 671   1,570 1,430 602 405 282 153 240 482 697 653
31 622   1,640   576   289 163   547   631