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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 11469000 MATTOLE R NR PETROLIA CA


Humboldt County, California
Hydrologic Unit Code 18010107
Latitude  40°18'48", Longitude 124°16'56" NAD27
Drainage area 245  square miles
Gage datum 49.79 feet above NAVD88
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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 1911-10-01 -> 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 2,950 2,880 2,390 1,890 791 380 121 53 54 78 316 2,340
2 2,500 2,840 2,160 1,680 714 349 118 52 46 82 388 2,660
3 2,360 2,700 2,180 1,480 657 319 111 51 44 80 331 2,440
4 2,850 2,740 2,030 1,520 635 325 107 50 43 77 412 2,310
5 2,630 2,660 2,430 1,560 730 311 104 49 44 86 583 2,270
6 2,560 2,760 2,550 1,470 634 287 101 49 54 90 822 2,500
7 2,630 3,100 2,180 1,430 603 266 99 48 46 94 574 2,610
8 3,170 3,070 2,150 1,430 566 248 97 49 41 83 666 2,430
9 3,450 2,930 2,520 1,330 547 237 96 49 50 121 1,000 2,160
10 3,080 2,790 2,380 1,310 530 224 94 47 49 159 1,230 2,430
11 3,260 2,590 2,190 1,360 499 211 90 45 41 220 1,250 2,150
12 3,900 2,820 2,420 1,510 467 200 87 44 38 249 1,380 2,090
13 4,080 3,010 2,760 1,450 441 192 85 43 36 287 1,230 1,970
14 4,330 3,210 2,850 1,360 416 186 84 42 36 206 1,300 2,840
15 4,380 3,270 2,570 1,150 401 183 81 42 36 190 1,320 3,240
16 4,830 3,370 2,610 1,070 395 175 78 42 39 165 1,360 3,330
17 3,880 3,480 2,400 1,070 435 194 76 41 48 138 1,120 3,110
18 3,700 3,270 2,790 1,020 657 279 75 41 60 135 1,050 2,700
19 3,530 3,340 2,120 1,050 547 255 73 40 80 178 1,030 3,260
20 4,270 2,950 1,860 1,140 475 201 71 40 70 152 1,150 2,980
21 3,810 2,880 1,810 1,060 474 177 68 42 49 144 1,170 4,200
22 3,460 2,600 2,020 929 482 162 67 40 43 215 1,560 4,240
23 3,270 2,490 2,120 878 466 153 66 39 44 315 1,690 3,040
24 3,060 2,590 2,180 955 478 147 64 38 42 347 1,890 2,670
25 3,220 2,780 2,200 871 483 140 62 42 44 382 1,540 2,320
26 3,490 2,870 1,980 790 536 138 61 42 58 284 1,460 2,430
27 3,390 2,710 1,970 884 595 142 60 43 85 261 1,390 2,850
28 3,260 2,680 1,960 839 470 135 58 46 64 282 1,410 3,130
29 3,160 3,320 2,150 909 390 130 57 45 62 284 1,510 2,910
30 2,740   2,740 865 399 129 56 59 65 395 1,910 2,990
31 2,920   2,090   413   55 64   297   3,350