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USGS Daily Statistics for Connecticut

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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 01188090 FARMINGTON RIVER AT UNIONVILLE, CT


Capitol Planning Region County, Connecticut
Hydrologic Unit Code 010802070405
Latitude  41°45'19.97", Longitude  72°53'13.35" NAD83
Drainage area 378.0  square miles
Gage datum 117.27 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 1977-10-01 -> 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
1 714 694 691 1,320 968 731 486 445 390 568 540 739
2 713 696 713 1,300 891 705 489 433 554 530 561 809
3 665 762 717 1,300 880 718 487 457 442 513 629 753
4 658 731 745 1,420 858 698 466 447 396 515 574 714
5 734 709 731 1,550 835 749 452 417 360 503 571 698
6 718 653 908 1,390 936 1,010 435 395 388 502 598 677
7 686 647 1,100 1,260 904 995 430 405 449 460 566 686
8 711 608 952 1,240 806 900 427 394 473 408 577 694
9 788 569 1,010 1,160 769 812 443 425 432 488 677 642
10 833 557 954 1,260 760 736 513 455 398 434 642 686
11 780 591 1,040 1,240 829 687 445 433 365 423 626 731
12 775 624 1,040 1,210 828 687 441 474 375 471 679 814
13 807 647 983 1,230 826 732 483 443 408 459 656 797
14 805 653 1,010 1,200 766 814 530 422 394 464 624 804
15 761 619 1,000 1,160 734 753 507 415 385 612 613 760
16 735 629 923 1,490 767 684 556 390 418 485 619 722
17 702 627 877 1,440 826 674 482 378 455 474 700 744
18 732 655 892 1,240 768 666 488 452 470 464 660 895
19 818 635 1,040 1,170 763 668 452 455 460 455 595 820
20 797 656 1,050 1,190 786 612 451 403 388 652 638 706
21 737 688 1,060 1,080 735 568 433 396 356 630 659 753
22 678 676 1,410 1,030 685 513 442 413 368 549 632 764
23 676 674 1,180 1,120 661 536 440 444 401 500 674 751
24 785 755 1,090 1,190 735 550 435 439 418 563 625 833
25 944 836 1,070 1,090 766 523 416 413 465 545 623 955
26 976 801 1,020 1,010 704 511 420 389 460 546 636 853
27 939 723 1,110 1,090 688 495 432 377 476 530 744 799
28 880 716 1,150 993 643 509 446 669 512 615 701 791
29 767 940 1,220 960 710 490 420 529 634 647 699 748
30 729   1,290 913 838 495 397 435 632 689 671 746
31 716   1,330   847   411 390   590   725