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USGS Surface-Water Daily Statistics for Oregon

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 14191000 WILLAMETTE RIVER AT SALEM, OR


Marion County, Oregon
Hydrologic Unit Code 17090007
Latitude  44°56'40", Longitude 123°02'30" NAD27
Drainage area 7,280  square miles
Gage datum 106.14 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 1909-10-01 -> 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 47,100 40,300 32,600 33,600 21,600 17,300 9,960 6,080 6,230 8,650 16,300 39,900
2 46,400 40,500 32,100 33,200 21,600 17,100 9,700 6,080 6,390 8,680 16,800 39,800
3 45,300 41,100 32,200 31,300 21,800 17,000 9,460 6,060 6,530 8,840 17,700 40,800
4 45,000 40,000 31,700 29,700 22,000 16,800 9,210 6,050 6,630 9,150 17,700 41,200
5 45,500 39,100 30,900 28,200 22,100 16,800 8,940 6,020 6,710 9,360 18,100 41,400
6 45,200 39,800 30,800 27,700 22,500 16,700 8,640 5,990 6,730 9,490 18,000 41,100
7 47,000 41,500 30,900 27,600 22,900 16,700 8,370 5,990 6,830 9,520 18,400 42,000
8 48,100 42,500 30,500 27,300 22,700 16,900 8,180 5,950 6,870 9,770 19,300 41,600
9 47,200 41,800 30,300 27,400 22,400 17,100 8,000 5,930 6,980 9,880 20,700 39,900
10 46,100 39,800 30,900 27,500 22,100 17,100 7,890 5,910 7,070 10,200 21,300 38,800
11 45,500 37,700 31,200 27,500 21,800 16,600 7,710 5,890 7,160 10,300 21,300 39,200
12 45,400 36,600 31,200 27,400 21,500 15,900 7,530 5,860 7,190 10,500 21,600 40,300
13 46,300 35,900 31,500 27,300 21,000 15,500 7,370 5,860 7,250 10,400 22,500 41,100
14 47,200 35,700 31,800 27,300 20,900 14,900 7,230 5,880 7,250 10,300 23,200 41,700
15 47,700 35,500 31,700 27,200 20,800 14,400 7,110 5,910 7,260 10,300 24,100 41,800
16 47,400 36,100 31,700 27,500 20,600 14,000 7,000 5,940 7,400 10,400 25,900 41,000
17 46,800 37,600 31,600 27,100 20,500 13,600 6,960 5,990 7,560 10,800 27,700 39,900
18 47,200 38,600 31,200 26,400 20,600 13,100 6,970 6,030 7,690 11,100 28,800 39,100
19 48,500 39,300 31,200 25,400 20,800 12,700 6,890 6,030 7,740 11,400 29,700 39,400
20 48,600 38,900 31,000 24,900 20,700 12,500 6,760 6,060 7,810 11,700 31,600 41,100
21 47,300 37,900 30,700 24,900 20,500 12,400 6,660 6,060 7,820 12,200 33,100 43,900
22 46,300 37,500 30,300 24,700 20,200 12,100 6,560 6,030 7,800 12,500 33,400 46,200
23 45,600 37,700 30,700 24,100 19,800 11,800 6,500 6,050 7,760 13,200 35,000 47,100
24 46,000 36,800 30,800 24,000 19,200 11,400 6,450 6,100 7,800 13,400 37,300 45,400
25 46,000 36,700 30,800 24,100 18,700 11,100 6,390 6,150 7,840 13,600 40,400 43,200
26 45,200 35,900 30,900 23,800 18,600 11,000 6,320 6,140 7,910 13,400 41,000 41,200
27 44,600 34,700 31,000 23,300 18,600 10,800 6,260 6,200 8,080 13,300 40,300 41,500
28 44,800 33,700 30,700 23,100 18,500 10,600 6,230 6,180 8,190 13,600 39,400 42,700
29 44,800 35,500 30,500 22,700 18,200 10,400 6,220 6,150 8,240 14,100 38,900 45,000
30 43,100   31,500 22,000 18,000 10,300 6,190 6,160 8,600 14,500 39,600 47,600
31 41,400   32,700   17,700   6,110 6,190   15,200   48,100