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USGS Daily Statistics for California

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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 -> 2023-09-30)

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 2,620 2,550 3,210 2,690 1,450 725 258 106 70 72 186 1,160
2 2,450 2,690 3,080 2,510 1,390 674 250 104 68 72 197 1,420
3 1,970 2,720 3,140 2,330 1,340 637 241 102 66 74 205 1,270
4 2,190 2,570 2,940 2,170 1,290 617 233 100 64 74 196 1,330
5 2,120 2,580 2,900 2,130 1,310 604 226 97 64 74 209 1,500
6 2,060 2,730 2,970 2,120 1,250 582 219 95 64 74 235 1,320
7 1,870 3,250 2,880 2,200 1,210 559 212 94 63 74 270 1,390
8 2,310 2,980 3,160 2,100 1,190 540 206 92 62 75 288 1,410
9 2,970 3,080 3,490 2,050 1,180 522 201 90 62 76 333 1,440
10 2,630 2,880 3,390 1,980 1,130 501 195 88 64 83 516 1,880
11 2,600 2,590 3,220 2,080 1,080 480 189 87 63 85 632 1,640
12 3,140 2,670 3,240 2,080 1,040 463 184 85 62 84 589 1,660
13 3,720 3,010 3,500 2,090 999 451 178 83 60 83 526 1,540
14 3,920 3,360 3,390 2,020 967 436 172 82 60 87 506 1,860
15 3,860 3,150 3,160 1,890 952 425 166 80 60 91 550 2,110
16 4,880 3,370 3,260 1,820 935 408 162 78 60 107 689 2,060
17 4,510 4,130 3,100 1,820 916 396 159 77 63 110 695 1,920
18 3,700 4,100 3,210 1,820 981 388 157 76 67 102 652 1,600
19 3,510 3,960 3,060 1,750 997 380 155 75 72 105 609 2,260
20 3,870 3,840 2,810 1,720 921 367 151 76 73 111 625 2,120
21 3,890 3,540 2,750 1,700 887 350 145 76 70 107 582 2,350
22 3,410 3,190 2,930 1,660 877 335 141 76 67 117 666 2,110
23 3,340 3,010 2,890 1,630 840 322 137 74 67 154 805 1,910
24 3,370 2,770 2,900 1,650 798 312 133 73 67 196 879 1,760
25 2,900 2,690 3,100 1,600 771 304 129 72 67 266 801 1,610
26 3,760 3,020 3,160 1,530 749 297 125 71 70 207 696 1,570
27 3,680 3,560 2,780 1,510 754 294 121 70 78 173 765 1,920
28 3,030 3,530 2,800 1,530 750 284 117 70 74 179 824 2,620
29 3,030 4,010 2,800 1,520 717 277 114 68 72 200 842 2,630
30 2,930   3,170 1,470 700 268 111 72 74 215 1,070 2,910
31 2,650   2,830   771   109 73   220   3,260