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USGS Surface-Water 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 -> 2021-09-30)

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 8,390 8,920 9,920 8,800 6,220 4,430 1,980 920 828 711 1,130 4,550
2 7,680 8,880 10,100 8,540 6,170 4,280 1,950 899 799 688 1,140 4,890
3 6,810 8,910 10,400 7,980 6,140 4,130 1,880 880 806 697 1,180 4,850
4 6,780 8,460 9,490 7,510 6,120 4,050 1,820 866 784 696 1,120 4,780
5 6,810 8,230 9,320 7,250 6,240 3,970 1,770 851 769 703 1,150 5,300
6 7,000 8,430 9,560 7,230 6,170 3,840 1,730 837 767 705 1,270 5,110
7 6,580 9,310 9,060 7,510 6,160 3,750 1,690 829 737 704 1,480 5,160
8 7,220 9,110 9,380 7,320 6,120 3,610 1,660 820 729 702 1,710 5,400
9 8,400 9,130 10,200 7,140 6,120 3,470 1,620 809 728 702 1,860 5,360
10 8,250 9,010 10,300 6,820 5,980 3,360 1,590 797 772 727 2,030 6,050
11 8,540 8,410 9,870 6,880 5,860 3,270 1,540 788 760 767 2,710 5,970
12 8,870 8,090 9,490 6,920 5,720 3,210 1,500 779 735 747 2,480 5,790
13 10,400 8,970 10,100 6,980 5,580 3,180 1,450 768 719 733 2,400 5,890
14 11,100 9,920 10,200 6,860 5,570 3,140 1,400 761 736 742 2,370 6,800
15 11,800 9,820 9,740 6,570 5,530 3,110 1,340 766 726 773 2,420 7,230
16 13,100 9,800 9,650 6,450 5,540 3,000 1,300 764 717 790 2,810 7,000
17 14,300 10,700 9,610 6,490 5,430 2,920 1,280 757 717 806 2,910 6,560
18 12,900 11,300 9,650 6,640 5,460 2,810 1,260 778 760 763 2,590 5,510
19 12,000 10,900 9,310 6,550 5,510 2,740 1,230 775 786 813 2,560 6,310
20 12,200 11,200 8,690 6,350 5,320 2,640 1,190 759 779 841 2,770 6,820
21 12,600 10,600 8,550 6,180 5,120 2,540 1,160 749 753 790 2,790 8,200
22 11,900 10,100 8,760 6,020 5,060 2,460 1,130 765 736 809 3,140 10,100
23 11,500 9,740 9,280 6,020 4,960 2,390 1,100 764 721 998 3,460 9,170
24 11,100 8,980 9,180 6,210 4,810 2,320 1,070 772 701 1,120 4,140 7,670
25 9,910 8,600 9,510 6,140 4,700 2,260 1,060 803 702 1,260 3,990 6,690
26 10,800 8,960 9,830 5,970 4,570 2,220 1,030 822 709 1,200 3,370 6,400
27 11,800 10,100 9,000 5,970 4,610 2,200 1,010 854 719 1,020 3,290 6,650
28 10,200 10,100 8,870 6,120 4,670 2,160 996 858 705 1,010 3,610 7,870
29 9,800 12,600 8,560 6,200 4,550 2,130 986 832 719 1,100 3,680 7,710
30 9,590   9,720 6,300 4,420 2,040 968 868 742 1,190 3,880 8,370
31 9,050   9,360   4,550   945 889   1,230   9,320