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USGS Surface-Water Daily Statistics for Vermont

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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 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 -> 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
1 841 774 914 1,790 1,410 698 537 394 283 340 883 935
2 801 761 903 1,930 1,310 669 518 387 251 378 833 972
3 813 776 898 2,090 1,260 698 530 373 232 392 759 967
4 808 862 895 2,130 1,210 656 498 319 227 415 715 923
5 811 911 866 2,250 1,150 676 429 310 235 424 677 870
6 768 896 860 2,320 1,100 747 394 286 246 416 664 848
7 735 869 855 2,310 1,020 808 361 277 290 390 685 861
8 679 793 846 2,280 958 807 334 253 314 345 706 896
9 665 738 924 2,200 921 797 326 245 322 353 749 889
10 690 679 983 2,100 880 728 328 251 315 362 742 940
11 707 667 981 2,050 856 703 327 254 295 404 777 991
12 735 673 1,040 1,990 864 672 289 267 279 468 740 989
13 788 711 1,130 1,990 867 671 314 276 264 498 744 967
14 798 723 1,180 2,030 911 661 360 291 247 487 761 964
15 815 715 1,160 1,980 916 565 355 288 243 436 760 978
16 780 715 1,200 1,830 916 536 318 267 223 444 754 979
17 751 719 1,330 1,870 917 516 278 239 217 508 777 936
18 731 748 1,450 1,910 922 484 267 241 209 589 812 948
19 732 752 1,460 1,810 930 451 283 281 258 592 785 891
20 719 740 1,500 1,750 957 429 306 269 255 596 754 825
21 705 736 1,520 1,750 960 429 303 254 248 618 756 791
22 704 748 1,490 1,700 904 406 302 268 244 578 765 817
23 703 769 1,490 1,580 840 422 294 266 224 520 762 880
24 688 797 1,530 1,570 813 462 311 296 239 530 722 960
25 718 877 1,600 1,630 872 434 362 323 260 545 721 1,010
26 789 917 1,660 1,610 965 436 355 290 279 543 758 1,040
27 858 926 1,690 1,580 961 422 335 236 306 614 812 1,060
28 866 973 1,770 1,560 886 432 313 210 348 696 835 1,110
29 869 1,100 1,830 1,560 824 489 310 237 354 775 847 1,110
30 836   1,780 1,510 797 539 364 315 348 857 894 1,030
31 794   1,760   737   393 319   901   916