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USGS Daily Statistics for Maine

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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 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
1 730 844 868 636 1,130 926 733 793 782 699 467 487
2 713 848 845 645 1,150 938 743 777 780 683 467 487
3 707 846 824 662 1,170 947 756 763 782 674 470 495
4 719 834 817 684 1,170 889 775 767 772 665 472 513
5 722 843 814 685 1,170 852 782 758 763 666 477 523
6 712 853 814 703 1,120 839 801 747 767 661 481 526
7 719 859 828 702 1,110 831 816 752 753 646 478 532
8 732 877 818 685 1,090 810 821 757 720 638 468 536
9 758 868 806 674 1,050 816 812 758 723 641 462 541
10 782 867 787 682 998 821 822 763 719 647 465 554
11 785 885 776 690 959 804 826 779 712 656 466 559
12 785 901 774 690 961 828 830 781 713 650 466 578
13 793 913 754 710 981 895 823 786 719 630 463 595
14 809 924 749 715 958 874 778 788 711 614 462 605
15 816 919 746 748 969 856 791 772 704 611 470 614
16 797 909 738 803 989 827 808 762 681 602 472 619
17 794 896 732 804 1,010 813 813 751 686 590 466 640
18 796 885 725 799 1,020 815 821 764 678 588 467 658
19 795 878 721 801 1,020 797 826 764 669 585 474 660
20 800 880 720 835 999 788 832 756 682 581 478 672
21 793 880 731 886 980 799 815 755 688 575 474 679
22 785 881 720 958 979 798 804 755 675 562 446 674
23 802 878 723 1,030 975 798 800 755 666 559 429 667
24 821 878 696 1,070 972 775 788 764 666 545 443 655
25 821 872 680 1,090 941 773 791 766 680 530 470 668
26 829 872 662 1,100 921 788 793 766 672 525 516 694
27 843 873 642 1,100 900 779 794 793 676 512 529 725
28 855 877 642 1,110 903 772 791 796 685 504 531 758
29 864 959 655 1,130 921 749 794 809 695 498 530 753
30 867   632 1,140 933 746 800 806 705 485 510 749
31 850   618   915   803 791   475   741