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USGS Surface-Water 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 14166000 WILLAMETTE RIVER AT HARRISBURG, OR


Linn County, Oregon
Hydrologic Unit Code 17090003
Latitude  44°16'14", Longitude 123°10'21" NAD27
Drainage area 3,420  square miles
Gage datum 288.39 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 1944-10-01 -> 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 19,200 18,000 13,400 14,100 10,600 9,760 5,760 4,690 5,000 5,990 8,730 18,600
2 18,600 18,100 13,500 13,700 10,900 9,790 5,620 4,720 5,040 5,960 9,010 19,200
3 19,000 17,800 13,400 13,500 11,000 9,860 5,500 4,750 5,090 5,990 9,050 19,600
4 19,100 17,400 13,100 12,900 11,200 9,730 5,380 4,740 5,120 6,000 8,710 19,600
5 18,800 16,400 13,200 12,600 11,100 9,770 5,280 4,740 5,150 5,990 8,980 19,800
6 19,400 15,900 13,700 12,900 11,400 9,770 5,200 4,730 5,220 6,070 9,090 19,700
7 20,300 15,800 13,700 12,800 11,900 9,930 5,110 4,720 5,280 6,120 9,320 20,700
8 20,200 15,900 13,400 13,100 11,800 10,100 5,040 4,740 5,340 6,140 9,800 20,200
9 19,800 15,500 13,400 13,400 11,500 9,930 4,980 4,740 5,390 6,210 10,500 19,200
10 21,000 15,100 13,900 13,200 11,300 9,610 4,900 4,730 5,460 6,400 10,300 19,000
11 21,500 14,900 13,900 13,200 11,300 9,290 4,850 4,740 5,480 6,410 10,200 19,700
12 21,100 14,000 13,600 12,900 11,200 9,190 4,800 4,760 5,470 6,460 11,000 20,800
13 21,900 14,200 13,600 12,800 11,100 8,930 4,730 4,810 5,490 6,400 11,200 20,800
14 22,100 14,900 13,700 12,800 11,100 8,490 4,700 4,830 5,500 6,330 11,800 21,100
15 22,200 14,700 13,800 12,500 11,100 8,200 4,670 4,850 5,530 6,360 12,100 20,800
16 22,200 15,600 14,300 12,100 11,100 7,930 4,640 4,870 5,590 6,680 12,500 19,500
17 22,700 16,300 14,200 12,000 11,300 7,620 4,610 4,900 5,600 6,850 12,600 19,100
18 23,600 16,500 13,900 12,000 11,700 7,300 4,600 4,910 5,620 6,760 13,800 19,000
19 23,100 16,800 13,800 11,700 11,700 7,150 4,600 4,890 5,620 6,800 15,300 19,100
20 22,300 16,200 13,400 11,500 11,600 7,050 4,600 4,900 5,650 7,090 15,600 19,800
21 22,100 16,000 13,400 11,500 11,500 6,890 4,590 4,900 5,690 7,540 15,100 20,400
22 22,000 16,200 13,500 11,500 11,200 6,730 4,590 4,910 5,680 7,640 15,800 20,600
23 21,900 16,100 14,100 11,400 10,900 6,530 4,620 4,940 5,670 7,810 17,800 20,300
24 21,400 15,200 14,200 11,600 10,700 6,360 4,610 4,940 5,700 7,900 18,500 19,700
25 21,300 15,000 14,500 11,800 10,500 6,250 4,610 4,920 5,730 7,660 18,200 19,300
26 21,100 14,800 14,400 11,600 10,500 6,230 4,600 4,950 5,800 7,990 18,600 18,800
27 20,900 14,300 14,100 11,400 10,500 6,130 4,620 4,940 5,950 7,930 19,200 18,500
28 20,700 13,900 13,700 11,600 10,400 6,030 4,640 4,910 5,900 8,260 19,100 19,700
29 19,600 13,400 13,400 11,200 10,200 5,990 4,650 4,900 5,970 8,940 18,900 22,000
30 18,500   14,000 10,800 10,100 5,940 4,630 4,940 6,100 9,290 18,300 21,100
31 17,900   14,400   9,820   4,640 4,960   8,880   20,800