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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 -> 2020-09-30)

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 1,360 1,200 740 1,150 3,910 8,460 10,800 9,710 9,590 5,910 3,580 2,050
2 2,900 759 793 1,150 3,930 8,650 10,700 9,960 10,600 5,190 4,010 2,870
3 1,880 586 935 1,250 4,060 8,600 10,800 9,910 9,160 4,650 4,170 3,700
4 1,460 552 1,070 1,340 4,250 8,920 11,900 9,860 8,620 4,610 4,920 2,510
5 1,580 545 1,050 1,340 4,270 9,020 12,300 10,100 7,740 5,470 4,170 2,000
6 1,450 533 983 1,360 4,270 9,340 11,700 10,600 7,750 6,970 3,310 1,670
7 1,270 527 1,010 1,470 4,510 9,750 11,200 10,500 8,750 7,470 3,070 1,470
8 1,210 525 1,230 1,720 4,760 9,860 11,000 10,600 8,670 5,480 3,510 1,520
9 1,160 524 1,370 1,920 4,990 9,610 11,300 10,700 7,620 4,880 3,970 1,650
10 1,130 523 1,440 2,030 5,280 9,240 12,500 10,600 7,480 5,230 3,250 1,760
11 1,160 521 1,840 2,220 5,740 9,930 13,600 9,920 7,940 5,220 2,780 1,950
12 1,130 521 1,400 2,360 5,650 10,600 12,500 9,900 7,310 5,560 2,910 1,880
13 1,170 521 1,220 2,230 5,430 10,800 11,700 10,300 7,830 7,050 3,850 1,780
14 1,400 520 1,160 2,140 5,670 10,300 11,200 10,900 7,790 5,680 3,980 2,710
15 1,470 518 1,110 2,010 5,900 9,680 11,200 11,000 6,550 4,990 3,660 2,640
16 1,490 516 1,040 1,880 5,830 9,620 11,400 10,700 5,950 4,540 3,370 2,640
17 1,380 513 986 1,860 6,030 10,600 11,400 10,900 5,130 4,520 4,750 2,930
18 1,320 510 1,030 1,970 6,230 11,700 11,100 12,100 5,680 4,350 4,420 3,350
19 1,240 506 1,100 2,110 6,620 10,800 10,600 10,800 5,990 4,490 4,310 4,800
20 1,160 503 1,170 2,150 7,150 10,000 10,500 11,100 5,660 4,800 3,890 3,170
21 1,110 500 1,260 2,220 7,360 10,200 11,100 12,000 10,200 4,220 4,710 2,440
22 1,080 673 1,370 2,550 7,500 9,920 11,700 9,990 8,340 4,580 6,690 2,020
23 1,030 674 1,440 2,820 7,900 9,520 11,600 9,090 7,550 5,100 6,970 1,970
24 988 671 1,380 3,220 8,410 9,230 11,300 8,770 12,700 4,830 4,930 2,450
25 1,030 696 1,140 3,510 8,410 9,290 11,300 8,620 12,200 7,590 4,010 2,170
26 3,080 714 1,070 3,880 8,470 10,400 11,100 8,640 9,310 9,080 3,510 1,770
27 3,240 715 1,040 4,150 8,670 10,500 11,400 9,180 8,370 5,870 3,130 1,070
28 2,100 730 1,050 4,250 8,640 10,100 11,500 9,700 8,570 4,660 2,720 1,050
29 1,760   1,130 3,780 8,620 10,400 11,400 8,740 8,790 4,220 2,410 1,060
30 1,550   1,230 3,830 8,340 10,700 10,300 8,420 7,390 4,110 2,180 1,030
31 1,400   1,180   8,530   10,000 8,870   3,730   1,020