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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 01018500 St. Croix River at Vanceboro, Maine


Washington County, Maine
Hydrologic Unit Code 01050001
Latitude  45°34'06", Longitude  67°25'42" NAD83
Drainage area 410  square miles
Contributing drainage area 410  square miles
Gage datum 367.07 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 1928-10-01 -> 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
1 734 842 871 639 1,130 926 733 793 782 699 467 487
2 718 845 848 649 1,150 938 743 777 780 683 467 487
3 711 843 827 664 1,170 947 756 763 782 674 470 495
4 723 832 820 682 1,170 889 775 767 772 665 472 513
5 726 842 816 680 1,170 852 782 758 763 666 477 523
6 716 853 819 698 1,120 839 801 747 767 661 481 526
7 723 860 833 698 1,110 831 816 752 753 646 478 532
8 736 878 823 679 1,090 810 821 757 720 638 468 536
9 763 869 812 674 1,050 816 812 758 723 641 462 541
10 787 868 792 682 998 821 822 763 719 647 465 554
11 790 886 781 690 959 804 826 779 712 656 466 559
12 790 902 779 690 961 828 830 781 713 650 466 578
13 798 915 759 710 981 895 823 786 719 630 463 595
14 814 926 754 715 958 874 778 788 711 614 462 605
15 821 920 751 748 969 856 791 772 704 611 470 614
16 802 910 742 803 989 827 808 762 681 602 472 619
17 799 898 736 804 1,010 813 813 751 686 590 466 640
18 801 886 730 799 1,020 815 821 764 678 588 467 662
19 800 880 726 801 1,020 797 826 764 669 585 474 664
20 805 881 725 835 999 788 832 756 682 581 478 676
21 798 882 735 886 980 799 815 755 688 575 474 683
22 790 882 725 958 979 798 804 755 675 562 446 678
23 804 880 728 1,030 975 798 800 755 666 559 429 671
24 818 880 701 1,070 972 775 788 764 666 545 443 659
25 820 873 684 1,090 941 773 791 766 680 530 470 672
26 832 874 666 1,100 921 788 793 766 672 525 516 698
27 843 876 646 1,100 900 779 794 793 676 512 529 729
28 853 881 646 1,110 903 772 791 796 685 504 531 763
29 862 959 659 1,130 921 749 794 809 695 498 530 758
30 865   635 1,140 933 746 800 806 705 485 510 754
31 848   622   915   803 791   475   746