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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 13333000 GRANDE RONDE RIVER AT TROY, OR


Wallowa County, Oregon
Hydrologic Unit Code 17060106
Latitude  45°56'45", Longitude 117°27'00" NAD27
Drainage area 3,275  square miles
Gage datum 1,585.98 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 1944-10-01 -> 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 1,930 2,660 3,330 5,410 6,590 7,010 3,610 947 736 757 958 1,580
2 1,830 2,610 3,320 5,510 6,600 6,930 3,470 937 730 764 951 1,800
3 1,750 2,550 3,400 5,470 6,640 7,070 3,370 916 715 764 946 1,810
4 1,690 2,490 3,410 5,460 6,710 7,090 3,250 892 706 772 953 1,670
5 1,650 2,410 3,390 5,580 6,850 7,160 3,110 871 706 771 993 1,560
6 1,720 2,360 3,480 5,830 7,040 7,090 2,980 848 707 767 1,000 1,510
7 1,920 2,830 3,510 6,080 7,250 6,900 2,890 831 702 767 1,040 1,570
8 2,020 2,930 3,560 6,290 7,310 6,650 2,770 820 708 774 1,090 1,640
9 1,940 2,900 3,660 6,380 7,370 6,440 2,670 800 706 780 1,090 1,570
10 1,870 2,840 4,070 6,320 7,270 6,160 2,610 779 705 791 1,090 1,510
11 1,820 2,700 4,130 6,280 7,310 5,970 2,470 770 703 819 1,110 1,580
12 1,820 2,650 4,120 6,250 7,290 5,930 2,340 763 701 853 1,190 1,990
13 1,860 2,740 4,170 6,350 7,300 5,940 2,240 755 701 850 1,190 2,010
14 1,950 2,720 4,270 6,560 7,310 5,820 2,130 752 698 843 1,170 2,140
15 2,130 2,830 4,370 6,490 7,410 5,710 2,010 747 708 838 1,130 2,140
16 2,360 3,060 4,600 6,440 7,560 5,620 1,880 749 715 833 1,130 1,840
17 2,480 3,240 4,530 6,490 7,680 5,480 1,760 744 712 834 1,130 1,710
18 2,430 3,410 4,650 6,560 7,730 5,350 1,670 735 711 823 1,140 1,680
19 2,420 3,640 4,850 6,620 7,840 5,280 1,570 730 714 826 1,120 1,610
20 2,390 3,570 4,820 6,820 7,830 5,150 1,480 725 725 836 1,150 1,610
21 2,340 3,520 4,860 6,880 7,770 5,020 1,400 728 733 847 1,190 1,750
22 2,190 3,560 4,910 6,790 7,600 4,850 1,330 732 730 871 1,200 2,070
23 2,110 3,610 5,010 6,830 7,480 4,680 1,270 739 724 913 1,230 2,210
24 2,220 3,700 5,120 6,940 7,370 4,500 1,210 761 723 913 1,290 1,930
25 2,260 3,680 5,160 6,810 7,320 4,370 1,170 761 725 908 1,340 1,870
26 2,240 3,550 5,230 6,670 7,380 4,230 1,120 754 735 912 1,490 1,860
27 2,220 3,440 5,210 6,600 7,430 4,110 1,070 746 743 915 1,430 1,830
28 2,270 3,400 5,150 6,640 7,330 3,960 1,040 737 738 922 1,460 1,840
29 2,410 3,950 5,140 6,600 7,260 3,850 1,010 728 745 944 1,490 1,920
30 2,480   5,250 6,600 7,270 3,730 984 723 751 939 1,520 1,900
31 2,580   5,300   7,160   963 726   951   1,890