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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 15015595 UNUK R BL BLUE R NR WRANGELL AK


Ketchikan Gateway Borough, Alaska
Hydrologic Unit Code 19010105
Latitude  56°14'26", Longitude 130°52'49" NAD27
Drainage area 745  square miles
Gage datum 150 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 2002-10-01 -> 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 1,600 1,650 889 1,150 3,860 9,730 11,800 10,800 9,920 6,850 4,620 2,320
2 1,930 1,430 885 1,140 3,910 9,960 11,700 10,300 10,100 6,990 6,300 2,740
3 1,580 1,260 943 1,180 4,210 10,300 11,800 10,100 9,770 6,510 4,740 2,910
4 1,430 1,190 970 1,210 4,310 10,200 12,400 10,300 8,580 5,710 4,590 2,460
5 1,440 1,220 946 1,200 4,380 9,810 13,000 11,000 8,390 6,250 4,030 2,660
6 1,370 1,210 906 1,220 4,590 9,600 12,600 11,000 7,750 7,300 3,390 2,660
7 1,240 1,260 892 1,310 4,690 9,810 12,200 11,100 7,950 7,280 3,140 2,370
8 1,200 1,190 979 1,450 4,690 9,890 11,800 10,800 8,000 6,270 3,340 2,110
9 1,150 1,540 1,020 1,560 4,970 9,760 11,800 10,700 7,200 6,620 3,650 2,020
10 1,090 1,670 1,050 1,620 5,700 9,730 12,300 11,000 7,100 6,820 3,160 1,940
11 1,130 1,310 1,230 1,700 6,040 10,300 13,000 10,200 7,890 5,420 2,780 1,900
12 1,120 1,190 1,030 1,770 5,760 10,600 12,100 10,000 7,680 5,420 2,860 1,840
13 1,120 1,160 959 1,700 5,840 10,500 11,300 11,000 7,640 6,470 3,410 1,860
14 1,180 1,060 933 1,660 6,350 10,000 11,200 11,300 7,300 5,930 3,430 2,130
15 1,300 995 925 1,650 6,460 9,690 11,500 12,600 6,650 5,290 3,190 2,040
16 1,380 963 920 1,670 6,460 10,000 12,000 13,200 5,870 4,660 3,010 1,990
17 1,280 997 926 1,780 6,450 10,900 11,600 12,400 5,370 4,820 4,430 2,060
18 1,230 994 960 2,010 6,530 11,900 11,300 12,000 5,890 5,830 4,300 2,200
19 1,340 1,050 993 2,190 6,930 11,800 11,000 10,500 5,910 6,420 3,800 2,730
20 1,210 960 1,020 2,270 7,260 11,300 10,800 10,600 5,530 5,280 3,400 2,100
21 1,160 929 1,060 2,320 7,340 11,300 11,400 11,000 9,780 4,700 3,960 1,830
22 1,220 904 1,200 2,520 7,330 11,000 11,500 9,560 9,120 4,620 5,000 1,630
23 1,310 903 1,330 2,690 7,880 10,300 11,300 9,230 7,870 4,790 5,090 1,590
24 1,310 847 1,280 2,950 8,250 10,200 11,000 8,690 12,800 4,450 3,960 1,780
25 1,320 840 1,150 3,120 8,310 10,800 11,000 8,690 11,300 6,010 3,520 1,690
26 1,930 829 1,100 3,390 8,170 11,700 11,200 8,920 8,980 7,150 3,250 1,600
27 2,080 851 1,100 3,600 8,130 12,200 12,000 9,090 8,880 5,480 3,070 1,310
28 1,820 916 1,120 3,720 8,090 12,200 11,300 10,400 9,010 4,380 2,840 1,290
29 2,250 964 1,130 3,730 8,310 12,800 11,000 10,100 8,150 3,940 2,590 1,370
30 2,370   1,180 3,920 8,370 12,300 10,400 9,470 7,090 3,790 2,380 1,610
31 1,860   1,160   8,960   10,700 9,840   3,560   1,670