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USGS Daily Statistics for Oregon

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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 14207500 TUALATIN RIVER AT WEST LINN, OR


Clackamas County, Oregon
Hydrologic Unit Code 17090010
Latitude  45°21'03", Longitude 122°40'30" NAD27
Drainage area 706  square miles
Gage datum 85.61 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 1928-10-01 -> 2019-09-30)

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 3,930 3,640 3,290 2,410 1,010 443 205 97 112 171 468 2,260
2 3,950 3,610 3,210 2,350 976 433 196 96 111 174 509 2,330
3 3,850 3,600 3,120 2,310 956 425 188 93 114 171 530 2,440
4 3,780 3,550 3,050 2,250 939 423 184 93 116 169 547 2,560
5 3,670 3,490 2,970 2,190 926 416 180 92 116 164 564 2,610
6 3,660 3,590 2,920 2,110 923 410 176 92 123 165 580 2,670
7 3,680 3,600 2,860 2,010 905 407 169 93 124 170 601 2,720
8 3,630 3,650 2,820 1,950 877 408 162 94 120 173 622 2,740
9 3,590 3,760 2,810 1,890 840 403 160 96 120 179 655 2,720
10 3,610 3,780 2,810 1,850 814 392 155 95 121 196 694 2,750
11 3,630 3,680 2,780 1,790 784 381 153 92 125 220 738 2,780
12 3,640 3,610 2,790 1,750 752 360 148 93 123 225 783 2,830
13 3,710 3,580 2,830 1,740 720 342 143 95 120 223 828 2,890
14 3,790 3,510 2,860 1,720 697 331 140 94 120 219 864 2,910
15 3,820 3,460 2,910 1,680 686 322 136 94 128 223 921 2,920
16 3,800 3,490 2,960 1,650 669 311 131 94 132 220 1,030 3,020
17 3,880 3,540 2,960 1,600 660 300 130 97 136 221 1,090 3,110
18 4,080 3,570 2,940 1,560 646 288 132 97 141 227 1,160 3,120
19 4,140 3,630 2,900 1,500 636 277 129 96 149 231 1,270 3,170
20 4,160 3,650 2,840 1,440 621 268 126 97 151 250 1,390 3,290
21 4,150 3,620 2,740 1,380 606 266 122 102 150 265 1,430 3,450
22 4,130 3,590 2,670 1,320 602 262 118 105 146 285 1,510 3,630
23 4,120 3,560 2,600 1,280 597 251 113 110 142 304 1,610 3,750
24 4,080 3,550 2,550 1,250 581 241 108 110 140 323 1,730 3,750
25 4,030 3,490 2,520 1,210 562 237 106 110 139 321 1,850 3,720
26 3,960 3,430 2,470 1,170 536 232 105 112 136 323 1,960 3,650
27 3,930 3,400 2,420 1,140 520 226 104 114 135 336 2,060 3,710
28 3,900 3,370 2,410 1,110 508 218 102 112 138 347 2,140 3,710
29 3,830 3,500 2,440 1,080 496 214 98 111 148 365 2,190 3,800
30 3,720   2,450 1,050 478 211 99 113 164 390 2,210 3,890
31 3,650   2,450   458   99 114   422   3,940