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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 -> 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 2,670 2,530 3,180 2,710 1,490 730 260 107 71 73 184 1,140
2 2,460 2,670 3,050 2,530 1,420 679 252 105 70 73 195 1,390
3 1,980 2,700 3,100 2,360 1,360 642 242 103 68 75 203 1,260
4 2,190 2,550 2,920 2,200 1,310 621 235 101 66 74 194 1,310
5 2,200 2,570 2,870 2,150 1,320 608 227 98 66 75 207 1,480
6 2,130 2,720 2,940 2,130 1,260 586 220 96 65 75 233 1,300
7 1,960 3,230 2,850 2,240 1,220 564 213 95 64 75 268 1,370
8 2,480 2,960 3,130 2,150 1,200 544 207 92 63 75 286 1,390
9 3,120 3,060 3,450 2,100 1,190 527 203 91 63 77 330 1,420
10 2,750 2,860 3,370 2,050 1,150 505 196 89 64 84 510 1,860
11 2,720 2,570 3,210 2,180 1,090 484 191 88 64 86 624 1,630
12 3,340 2,650 3,250 2,160 1,050 467 185 86 63 85 581 1,640
13 3,890 2,980 3,660 2,140 1,020 455 179 84 61 84 519 1,520
14 4,180 3,320 3,780 2,070 988 439 173 83 61 88 499 1,840
15 4,040 3,120 3,460 1,930 974 428 168 81 61 92 543 2,080
16 4,950 3,340 3,410 1,860 957 411 163 79 61 107 680 2,030
17 4,550 4,080 3,200 1,860 938 398 160 78 64 110 685 1,890
18 3,730 4,050 3,290 1,850 1,000 390 158 77 68 102 643 1,570
19 3,530 3,910 3,130 1,780 1,020 382 156 76 72 104 601 2,230
20 3,870 3,800 2,910 1,740 939 369 151 77 73 110 616 2,080
21 3,880 3,500 2,840 1,720 904 352 146 78 71 106 574 2,320
22 3,400 3,150 3,000 1,690 893 337 142 77 68 116 656 2,080
23 3,330 2,980 2,940 1,670 854 325 138 76 68 152 793 1,880
24 3,350 2,740 2,940 1,690 811 314 133 75 67 193 866 1,740
25 2,880 2,660 3,130 1,640 783 307 130 73 67 263 789 1,600
26 3,730 2,990 3,180 1,560 760 300 125 72 71 204 685 1,560
27 3,640 3,520 2,800 1,550 764 296 122 72 79 171 753 2,000
28 3,010 3,490 2,830 1,580 758 286 118 71 75 177 811 2,650
29 3,010 4,010 2,830 1,570 725 279 115 69 73 198 829 2,630
30 2,900   3,180 1,520 708 270 112 73 75 212 1,060 3,000
31 2,630   2,850   777   110 74   218   3,400