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USGS Daily Statistics for Oregon

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 1,920 2,680 3,300 5,410 6,590 7,010 3,610 947 736 757 962 1,590
2 1,820 2,630 3,290 5,510 6,600 6,930 3,470 937 730 767 955 1,820
3 1,740 2,560 3,370 5,470 6,640 7,070 3,370 916 715 767 949 1,820
4 1,660 2,510 3,380 5,460 6,710 7,090 3,250 892 706 775 957 1,680
5 1,610 2,430 3,370 5,580 6,850 7,160 3,110 871 706 774 997 1,580
6 1,670 2,370 3,460 5,830 7,040 7,090 2,980 848 707 769 1,000 1,520
7 1,880 2,850 3,510 6,080 7,250 6,900 2,890 831 702 770 1,050 1,580
8 1,990 2,960 3,560 6,290 7,310 6,650 2,770 820 708 777 1,090 1,650
9 1,920 2,930 3,660 6,380 7,370 6,440 2,670 800 706 784 1,090 1,580
10 1,850 2,860 4,080 6,320 7,270 6,160 2,610 779 705 794 1,100 1,520
11 1,810 2,730 4,130 6,280 7,310 5,970 2,470 770 703 823 1,110 1,600
12 1,810 2,680 4,120 6,250 7,290 5,930 2,340 763 701 857 1,200 2,010
13 1,850 2,770 4,170 6,350 7,300 5,940 2,240 755 701 854 1,200 2,030
14 1,950 2,750 4,270 6,560 7,310 5,820 2,130 752 698 847 1,180 2,160
15 2,130 2,860 4,370 6,490 7,410 5,710 2,010 747 708 841 1,140 2,150
16 2,370 3,090 4,600 6,440 7,560 5,620 1,880 749 715 836 1,140 1,850
17 2,490 3,270 4,530 6,490 7,680 5,480 1,760 744 712 838 1,130 1,720
18 2,440 3,440 4,650 6,560 7,730 5,350 1,670 735 711 826 1,140 1,690
19 2,440 3,670 4,850 6,620 7,840 5,280 1,570 730 714 830 1,130 1,610
20 2,410 3,600 4,820 6,820 7,830 5,150 1,480 725 725 840 1,160 1,610
21 2,360 3,550 4,860 6,880 7,770 5,020 1,400 728 733 850 1,200 1,760
22 2,210 3,590 4,910 6,790 7,600 4,850 1,330 732 730 874 1,200 2,080
23 2,120 3,620 5,010 6,830 7,480 4,680 1,270 739 724 917 1,230 2,210
24 2,240 3,630 5,120 6,940 7,370 4,500 1,210 761 723 917 1,280 1,930
25 2,280 3,600 5,160 6,810 7,320 4,370 1,170 761 725 912 1,340 1,860
26 2,260 3,500 5,230 6,670 7,380 4,230 1,120 754 735 916 1,500 1,860
27 2,230 3,400 5,210 6,600 7,430 4,110 1,070 746 743 919 1,440 1,810
28 2,290 3,370 5,150 6,640 7,330 3,960 1,040 737 738 925 1,470 1,830
29 2,430 3,950 5,140 6,600 7,260 3,850 1,010 728 745 948 1,490 1,910
30 2,500   5,250 6,600 7,270 3,730 984 723 751 943 1,530 1,880
31 2,600   5,300   7,160   963 726   955   1,870