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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 11530000 TRINITY R A HOOPA CA


Humboldt County, California
Hydrologic Unit Code 18010211
Latitude  41°03'00", Longitude 123°40'21" NAD27
Drainage area 2,853  square miles
Gage datum 274.82 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 1963-10-01 -> 2024-09-30)

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 8,490 8,750 9,700 8,720 6,360 4,410 1,950 913 830 710 1,130 4,430
2 7,670 8,710 9,900 8,470 6,270 4,260 1,920 896 802 689 1,150 4,760
3 6,780 8,730 10,100 7,930 6,220 4,110 1,850 878 810 697 1,190 4,720
4 6,820 8,300 9,280 7,470 6,180 4,020 1,790 864 794 695 1,130 4,650
5 7,050 8,090 9,130 7,230 6,280 3,960 1,740 848 783 701 1,190 5,170
6 7,300 8,300 9,360 7,200 6,210 3,840 1,710 833 804 702 1,300 4,980
7 6,900 9,130 8,870 7,500 6,190 3,740 1,670 825 774 701 1,500 5,030
8 7,830 8,930 9,180 7,350 6,150 3,600 1,630 817 754 699 1,720 5,250
9 8,860 8,950 9,980 7,170 6,140 3,460 1,600 805 745 699 1,870 5,220
10 8,610 8,840 10,200 6,890 5,990 3,350 1,560 794 781 723 2,060 5,900
11 8,800 8,260 9,710 7,040 5,870 3,260 1,510 786 768 762 2,700 5,840
12 9,250 7,950 9,350 7,080 5,750 3,200 1,470 777 741 742 2,470 5,660
13 10,700 8,790 10,200 7,080 5,630 3,170 1,430 766 724 729 2,380 5,760
14 11,600 9,710 10,600 6,940 5,630 3,130 1,380 759 740 738 2,340 6,650
15 12,200 9,620 10,300 6,640 5,600 3,090 1,320 763 730 768 2,390 7,050
16 13,200 9,590 9,890 6,540 5,600 2,980 1,290 761 721 784 2,770 6,840
17 14,300 10,500 9,710 6,650 5,470 2,870 1,260 754 721 799 2,860 6,410
18 12,800 11,000 9,690 6,820 5,490 2,760 1,250 775 764 755 2,540 5,390
19 11,900 10,600 9,340 6,730 5,540 2,690 1,220 772 792 803 2,510 6,160
20 12,100 10,900 8,800 6,530 5,350 2,590 1,180 760 787 831 2,720 6,640
21 12,400 10,300 8,650 6,440 5,140 2,490 1,140 758 760 784 2,730 7,990
22 11,700 9,840 8,810 6,330 5,080 2,410 1,110 793 744 830 3,070 9,820
23 11,300 9,520 9,280 6,320 4,960 2,350 1,080 782 726 1,010 3,380 9,030
24 10,900 8,780 9,170 6,480 4,810 2,280 1,060 780 701 1,150 4,040 7,660
25 9,760 8,410 9,460 6,350 4,700 2,220 1,040 804 702 1,370 3,890 6,680
26 10,700 8,760 9,740 6,160 4,570 2,180 1,020 821 709 1,250 3,290 6,390
27 11,500 9,850 8,920 6,220 4,600 2,170 999 848 719 1,070 3,210 6,850
28 9,990 9,900 8,800 6,350 4,660 2,120 987 858 706 1,050 3,520 7,980
29 9,620 12,600 8,510 6,400 4,540 2,090 977 833 719 1,110 3,590 7,690
30 9,410   9,630 6,480 4,410 2,000 959 867 741 1,200 3,780 8,550
31 8,880   9,270   4,530   938 887   1,220   9,770