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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 11528700 SF TRINITY R BL HYAMPOM CA


Trinity County, California
Hydrologic Unit Code 18010212
Latitude  40°39'00", Longitude 123°29'35" NAD27
Drainage area 764  square miles
Gage datum 1,211.37 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 1965-10-01 -> 2020-09-30)

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 2,690 2,590 3,360 2,810 1,500 746 266 109 72 74 184 1,190
2 2,520 2,710 3,220 2,620 1,440 694 257 106 70 73 192 1,460
3 2,020 2,760 3,280 2,430 1,380 656 247 105 68 75 201 1,320
4 2,200 2,620 3,080 2,270 1,330 635 239 102 66 75 189 1,370
5 2,100 2,670 3,030 2,220 1,350 620 231 99 66 76 200 1,550
6 2,040 2,830 3,110 2,200 1,290 597 224 98 66 76 228 1,360
7 1,840 3,390 3,010 2,290 1,250 574 217 96 65 76 266 1,440
8 2,310 3,100 3,310 2,180 1,230 554 211 94 63 76 286 1,450
9 3,000 3,210 3,660 2,130 1,220 537 206 92 63 78 315 1,490
10 2,670 3,000 3,550 2,060 1,170 515 200 91 65 85 501 1,950
11 2,650 2,690 3,370 2,170 1,110 493 194 89 65 87 632 1,700
12 3,210 2,750 3,390 2,160 1,070 475 188 87 63 86 592 1,720
13 3,810 3,110 3,670 2,180 1,030 461 182 85 62 85 529 1,590
14 4,010 3,480 3,550 2,110 994 447 177 84 61 89 510 1,910
15 3,960 3,260 3,300 1,960 979 435 171 82 61 94 558 2,170
16 5,020 3,490 3,410 1,880 962 418 166 80 62 110 703 2,110
17 4,640 4,310 3,240 1,880 942 406 163 79 65 113 709 1,970
18 3,800 4,280 3,360 1,880 1,010 398 161 78 68 104 664 1,640
19 3,610 4,120 3,190 1,800 1,020 389 159 77 72 107 619 2,330
20 3,980 4,000 2,920 1,770 945 377 155 78 73 113 636 2,180
21 4,000 3,680 2,870 1,730 912 359 149 78 70 109 594 2,420
22 3,500 3,310 3,060 1,680 904 344 144 78 68 114 681 2,170
23 3,440 3,130 3,010 1,670 865 331 140 76 68 150 826 1,880
24 3,460 2,880 3,030 1,690 822 320 136 75 67 166 903 1,730
25 2,980 2,800 3,240 1,650 794 312 132 73 68 219 823 1,610
26 3,870 3,150 3,310 1,570 771 305 128 73 72 186 714 1,570
27 3,790 3,720 2,910 1,560 777 302 124 72 80 161 786 1,950
28 3,120 3,690 2,930 1,580 773 292 120 71 76 171 847 2,680
29 3,120 4,290 2,930 1,580 739 285 117 70 74 197 866 2,690
30 3,010   3,310 1,530 720 275 114 74 75 213 1,110 2,990
31 2,720   2,950   794   111 75   220   3,350