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USGS Daily Statistics for Alaska

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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 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 -> 2021-09-30)

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 1,520 1,150 857 1,030 4,040 9,710 11,500 10,600 9,250 6,160 5,190 2,230
2 2,230 882 860 1,020 3,990 9,980 11,400 10,400 9,990 5,420 7,460 2,960
3 1,690 760 930 1,090 4,200 10,200 11,400 10,200 9,200 5,610 5,320 3,370
4 1,460 733 984 1,150 4,270 9,650 12,100 10,600 8,930 5,220 5,120 2,710
5 1,500 725 963 1,160 4,270 9,280 12,500 11,400 9,040 6,300 4,260 2,830
6 1,400 717 901 1,180 4,290 9,250 12,100 11,100 8,360 7,130 3,390 2,830
7 1,240 692 883 1,260 4,650 9,560 11,700 10,700 8,610 7,170 3,110 2,530
8 1,170 657 1,030 1,450 4,780 9,600 11,300 10,700 8,690 5,330 3,450 2,190
9 1,130 676 1,110 1,590 5,140 9,470 11,400 10,900 7,730 4,760 3,840 2,100
10 1,110 674 1,140 1,670 5,760 9,410 12,200 11,300 7,540 5,050 3,180 2,030
11 1,190 717 1,400 1,810 6,100 9,900 13,000 10,200 8,250 5,030 2,730 2,070
12 1,170 694 1,110 1,920 5,850 10,400 12,000 9,920 7,830 5,300 2,850 1,960
13 1,180 685 987 1,840 5,720 10,600 11,400 10,300 7,790 6,540 3,660 1,860
14 1,260 668 936 1,800 6,050 10,300 11,200 11,100 7,740 5,340 3,750 2,390
15 1,390 663 903 1,800 6,190 9,870 11,500 12,100 6,430 4,740 3,460 2,310
16 1,430 656 867 1,820 6,180 9,780 12,100 13,600 5,790 4,340 3,200 2,290
17 1,390 644 851 1,970 6,300 10,600 11,600 12,600 5,090 4,300 4,400 2,470
18 1,350 632 902 2,280 6,490 11,800 11,100 12,300 5,520 4,140 4,060 2,720
19 1,560 626 963 2,500 6,870 11,400 10,700 10,700 5,930 4,240 3,950 3,590
20 1,360 625 1,000 2,540 7,280 11,100 10,600 10,900 5,750 4,500 3,590 2,600
21 1,210 710 1,060 2,550 7,370 11,200 11,400 11,500 10,500 3,990 4,290 2,140
22 1,160 784 1,130 2,760 7,370 10,700 11,700 9,720 8,710 4,280 5,870 1,850
23 1,130 748 1,190 2,940 7,700 10,200 11,400 9,350 7,510 4,710 6,100 1,810
24 1,190 713 1,150 3,210 8,280 9,940 11,200 8,680 14,000 4,460 4,400 2,100
25 1,240 717 1,010 3,400 8,390 10,500 10,900 8,570 12,000 6,830 3,620 1,910
26 2,240 730 960 3,720 8,080 11,600 11,100 8,820 8,920 8,500 3,230 1,650
27 2,270 756 974 3,960 8,010 11,800 12,200 9,080 8,710 6,050 2,910 1,250
28 1,650 882 1,010 4,080 8,010 11,500 11,400 10,400 9,280 4,560 2,590 1,280
29 1,500 1,020 1,040 4,120 8,160 12,200 11,000 9,510 8,530 4,090 2,460 1,280
30 1,410   1,100 4,240 8,200 11,900 10,300 8,320 7,160 3,940 2,280 1,300
31 1,300   1,050   8,780   10,400 8,660   3,640   1,370