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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 14170000 LONG TOM RIVER AT MONROE, OR


Benton County, Oregon
Hydrologic Unit Code 17090003
Latitude  44°18'46.2", Longitude 123°17'46.9" NAD83
Drainage area 391  square miles
Gage datum 273.66 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 1921-10-01 -> 2025-09-30)

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 2,140 1,890 1,220 887 300 171 62 42 69 288 721 1,200
2 2,140 1,960 1,150 838 296 162 59 43 71 366 800 1,210
3 2,110 1,970 1,060 778 316 160 56 43 72 428 841 1,260
4 2,120 1,940 1,010 676 340 157 54 43 76 490 803 1,360
5 2,020 1,890 1,050 618 327 170 52 46 80 535 797 1,360
6 2,040 1,830 1,050 583 361 166 50 49 85 563 775 1,420
7 2,130 1,870 1,020 565 380 154 48 50 94 603 770 1,430
8 2,100 1,800 990 604 354 138 47 49 110 622 762 1,440
9 2,020 1,660 966 624 326 129 46 50 112 638 775 1,420
10 2,110 1,560 993 610 294 123 46 52 115 665 769 1,420
11 2,070 1,460 1,010 611 285 119 46 49 118 675 761 1,420
12 2,110 1,380 982 615 263 112 45 48 123 681 774 1,400
13 2,160 1,420 1,020 621 251 103 44 49 125 685 747 1,370
14 2,180 1,420 1,020 608 255 96 43 52 126 674 714 1,420
15 2,190 1,450 999 604 258 92 44 53 125 670 675 1,440
16 2,160 1,520 999 622 243 88 45 55 134 669 669 1,440
17 2,150 1,550 976 599 244 85 45 59 140 657 638 1,500
18 2,260 1,590 918 553 270 82 45 60 142 667 662 1,530
19 2,180 1,550 903 495 257 79 44 60 147 666 735 1,620
20 2,160 1,530 855 476 230 79 43 62 136 688 773 1,690
21 2,150 1,550 833 480 222 83 42 63 158 692 887 1,790
22 2,010 1,500 849 461 225 86 42 64 162 680 1,000 1,810
23 1,920 1,360 848 444 209 88 42 64 163 685 1,040 1,800
24 1,920 1,320 842 436 190 83 42 65 158 687 1,080 1,810
25 1,910 1,310 816 419 190 80 42 68 178 705 1,100 1,810
26 1,960 1,360 777 396 194 74 42 71 188 695 1,140 1,810
27 2,010 1,360 757 381 201 71 42 68 194 695 1,160 1,870
28 1,990 1,290 775 349 190 69 42 67 207 709 1,190 2,080
29 1,960 1,560 810 325 177 66 42 68 220 714 1,140 2,100
30 1,890   874 308 162 63 41 69 241 698 1,150 2,110
31 1,880   862   163   42 71   701   2,160