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USGS Daily Statistics for Connecticut

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ICE EFFECTS ON STREAMFLOW - During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.

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


Hartford County, Connecticut
Hydrologic Unit Code 01080207
Latitude  41°45'19.97", Longitude  72°53'13.35" NAD83
Drainage area 378  square miles
Gage datum 178.20 feet above NGVD29
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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 -> 2021-09-30)

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
1 678 661 690 1,330 964 728 498 433 384 523 512 711
2 679 671 716 1,310 889 718 487 430 400 510 534 821
3 640 764 713 1,320 876 731 464 460 391 495 619 765
4 637 715 752 1,430 839 708 444 451 377 483 570 715
5 719 698 740 1,600 800 770 434 420 346 460 571 698
6 704 653 878 1,430 843 1,070 411 397 364 475 606 675
7 667 652 1,060 1,290 851 1,050 408 402 429 442 574 681
8 701 609 929 1,230 774 937 397 391 466 383 589 696
9 789 568 1,020 1,160 725 839 386 427 422 478 705 646
10 704 557 926 1,280 701 762 374 447 384 423 665 697
11 723 593 1,040 1,270 804 714 373 432 360 402 646 706
12 749 631 1,020 1,200 827 717 368 485 371 455 674 792
13 737 653 963 1,240 839 769 391 452 407 449 643 779
14 757 667 987 1,220 781 859 409 430 401 457 617 799
15 731 634 1,000 1,170 745 791 401 422 397 621 612 761
16 686 640 933 1,510 775 720 436 391 435 487 613 720
17 651 632 869 1,470 840 711 399 382 477 477 707 736
18 697 639 884 1,240 783 701 386 453 491 466 669 774
19 799 630 1,050 1,170 783 706 369 437 474 460 603 720
20 770 667 1,080 1,200 809 645 355 398 398 676 655 659
21 719 707 1,080 1,090 737 592 342 395 370 634 679 730
22 664 692 1,470 1,040 691 532 357 410 378 550 638 738
23 665 650 1,190 1,110 666 549 374 403 413 507 685 684
24 790 750 1,050 1,200 755 567 407 388 410 580 634 789
25 954 852 1,030 1,100 796 541 388 379 409 549 636 864
26 941 818 985 1,020 732 530 396 362 426 529 647 786
27 918 735 1,100 1,100 713 502 419 357 473 502 753 756
28 868 717 1,130 1,010 656 523 439 696 524 613 710 723
29 748 892 1,200 982 714 506 414 541 567 650 714 700
30 709   1,300 929 860 507 385 440 513 675 676 708
31 683   1,360   847   403 393   552   691