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USGS Daily Statistics for New Hampshire

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USGS 01085500 CONTOOCOOK R BL HOPKINTON DAM AT W HOPKINTON, NH


Merrimack County, New Hampshire
Hydrologic Unit Code 01070003
Latitude  43°11'34", Longitude  71°44'52" NAD27
Drainage area 427  square miles
Gage datum 355.15 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 1962-10-01 -> 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
1 863 779 910 1,820 1,410 724 538 391 280 339 871 922
2 825 763 898 1,940 1,330 696 515 380 248 376 821 955
3 831 775 896 2,090 1,290 711 549 363 229 389 746 949
4 821 856 908 2,160 1,250 658 543 312 222 409 702 910
5 825 900 882 2,260 1,200 669 494 307 229 417 664 864
6 773 882 885 2,320 1,160 736 462 285 240 409 651 843
7 738 855 903 2,310 1,100 838 421 274 279 384 670 851
8 684 782 916 2,290 1,050 845 373 254 302 342 689 883
9 666 728 1,000 2,200 999 832 352 247 310 353 730 878
10 700 671 1,050 2,100 935 752 362 256 304 360 724 926
11 737 662 1,050 2,050 903 714 378 260 287 399 757 990
12 771 673 1,120 2,000 932 672 349 267 279 460 722 1,030
13 822 709 1,190 2,010 935 663 387 274 274 488 725 1,030
14 848 720 1,220 2,060 974 650 434 287 254 477 739 1,010
15 860 708 1,180 2,000 969 559 433 283 244 428 737 1,000
16 811 706 1,230 1,840 945 530 374 263 227 442 733 992
17 769 709 1,360 1,840 928 509 336 237 219 504 754 947
18 739 736 1,500 1,860 926 493 345 239 212 580 788 967
19 735 739 1,520 1,760 927 462 364 276 261 585 764 931
20 723 728 1,550 1,700 947 436 382 272 261 587 733 883
21 710 726 1,550 1,700 949 432 360 253 251 604 736 865
22 706 736 1,520 1,650 905 406 332 263 246 572 747 890
23 703 756 1,500 1,530 861 421 314 261 223 521 754 935
24 687 783 1,550 1,550 843 459 322 290 236 528 727 990
25 717 859 1,620 1,620 892 434 363 314 258 537 722 1,030
26 794 897 1,670 1,580 965 436 353 287 278 533 751 1,050
27 872 905 1,700 1,560 948 429 330 238 304 601 803 1,060
28 885 954 1,770 1,540 872 440 308 213 345 683 833 1,110
29 884 1,100 1,840 1,520 808 500 305 237 350 758 842 1,110
30 847   1,820 1,480 778 543 356 309 343 838 887 1,040
31 803   1,790   734   393 314   886   932