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USGS Surface-Water Daily Statistics for Washington

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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 12181000 SKAGIT RIVER AT MARBLEMOUNT, WA


Skagit County, Washington
Hydrologic Unit Code 17110005
Latitude  48°32'02", Longitude 121°25'43" NAD27
Drainage area 1,381  square miles
Gage datum 308.64 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 1942-10-01 -> 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 5,750 7,220 6,350 5,490 5,740 7,090 8,430 5,560 3,920 3,980 5,820 7,130
2 6,120 6,930 6,420 5,180 5,730 7,110 8,700 5,350 3,950 4,070 5,910 7,300
3 6,420 6,670 6,340 5,240 5,790 6,930 8,390 5,340 3,850 4,040 6,060 7,180
4 6,880 6,730 6,410 5,160 5,790 7,000 8,090 5,400 3,730 4,500 6,580 7,500
5 6,780 6,900 6,430 5,200 5,890 7,090 8,000 5,240 3,770 4,080 6,430 6,610
6 6,750 6,920 6,510 5,330 5,990 6,960 7,960 5,170 3,920 4,000 6,910 6,350
7 7,130 6,930 6,530 5,380 5,940 7,070 8,040 5,120 4,020 4,130 6,900 5,970
8 7,190 6,990 6,390 5,480 6,050 6,920 8,060 5,050 4,180 4,100 7,250 6,000
9 6,810 7,160 6,460 5,450 6,010 6,910 8,040 4,930 4,190 3,910 6,850 6,290
10 6,870 7,530 6,460 5,330 6,020 6,930 7,740 4,870 4,170 4,200 7,150 6,660
11 6,860 7,130 6,370 5,350 6,350 7,050 7,700 4,760 4,190 4,170 6,940 6,600
12 7,000 6,900 6,630 5,450 6,740 7,120 7,950 4,770 3,910 4,190 7,550 6,340
13 7,010 6,720 6,440 5,520 6,610 7,270 8,070 4,770 3,920 4,220 7,460 6,570
14 6,840 6,820 6,380 5,660 6,500 7,250 8,020 4,690 3,950 4,320 8,160 6,340
15 6,880 7,060 6,150 5,640 6,660 7,430 7,990 4,710 4,020 4,400 8,110 6,130
16 7,020 7,050 6,010 5,730 6,760 7,710 7,710 4,460 3,950 4,880 7,380 5,960
17 7,180 6,930 5,720 5,720 6,700 7,910 7,600 4,310 4,100 5,200 7,350 5,950
18 7,600 6,800 5,760 5,690 6,700 7,980 7,510 4,330 4,050 4,730 6,970 5,920
19 7,490 6,700 5,890 5,830 6,660 8,010 7,270 4,110 3,960 4,930 7,020 5,710
20 6,930 6,730 5,840 5,860 6,770 7,990 7,080 3,980 4,050 5,180 6,870 5,780
21 6,880 6,750 5,910 5,700 6,680 7,840 6,990 3,940 3,930 5,170 6,880 5,730
22 6,840 6,860 5,820 5,710 6,670 7,590 6,950 3,920 3,940 5,410 7,120 5,720
23 6,850 6,880 5,830 5,790 6,710 7,700 6,980 3,880 3,920 5,050 7,600 5,760
24 7,000 6,970 5,660 5,840 6,840 7,730 6,870 3,890 4,030 4,950 7,350 5,820
25 7,050 6,890 5,610 5,670 6,960 7,770 6,730 4,060 3,960 5,250 7,360 5,540
26 7,190 6,770 5,580 5,680 7,040 7,770 6,640 3,850 4,010 5,310 7,550 5,960
27 6,940 6,620 5,570 5,860 7,080 7,770 6,240 3,790 4,070 5,390 7,880 5,910
28 7,140 6,490 5,620 6,070 7,090 7,820 5,980 3,720 4,050 5,500 7,650 5,920
29 6,950 6,250 5,610 6,020 6,960 8,330 5,850 3,810 4,110 5,520 7,360 5,830
30 7,010   5,710 6,080 6,890 8,420 5,860 3,910 4,180 5,720 7,130 5,670
31 6,910   5,690   7,050   5,730 3,850   5,990   5,650