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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 12500450 YAKIMA RIVER ABOVE AHTANUM CREEK AT UNION GAP, WA


Yakima County, Washington
Hydrologic Unit Code 17030003
Latitude  46°32'04", Longitude 120°27'58" NAD27
Drainage area 3,479  square miles
Gage datum 900.00 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 1966-10-01 -> 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 2,380 3,460 3,570 4,300 5,650 6,440 4,370 3,400 2,940 2,230 1,770 2,470
2 2,380 3,280 3,490 4,260 5,620 6,410 4,210 3,420 2,910 2,110 1,740 2,870
3 2,360 3,100 3,460 4,180 5,670 6,570 4,070 3,420 2,860 2,030 1,730 3,170
4 2,400 3,020 3,450 4,160 5,690 6,680 4,000 3,410 2,830 2,000 1,730 2,970
5 2,520 3,010 3,480 4,160 5,780 6,710 4,000 3,400 2,800 1,970 1,830 2,810
6 2,620 3,050 3,610 4,290 5,940 6,660 3,890 3,400 2,800 1,940 1,860 2,620
7 2,620 3,220 3,630 4,370 6,040 6,590 3,800 3,440 2,770 1,920 2,010 2,580
8 3,140 3,520 3,500 4,460 6,100 6,440 3,770 3,440 2,760 1,900 2,050 2,450
9 3,140 3,720 3,500 4,570 6,090 6,210 3,790 3,430 2,760 1,910 1,910 2,650
10 2,930 3,450 3,710 4,630 6,040 6,040 3,780 3,390 2,730 1,890 1,880 2,750
11 2,860 3,300 3,770 4,650 6,090 5,880 3,760 3,380 2,690 1,890 1,880 2,630
12 2,700 3,180 3,830 4,660 6,200 5,610 3,740 3,360 2,650 1,860 1,940 2,600
13 2,630 3,100 4,070 4,700 6,230 5,510 3,720 3,350 2,630 1,830 2,210 2,580
14 2,690 3,060 4,050 4,840 6,210 5,530 3,730 3,350 2,610 1,810 2,140 2,750
15 2,920 3,210 4,030 4,810 6,300 5,560 3,670 3,350 2,600 1,790 2,110 2,720
16 3,300 3,550 4,070 4,700 6,710 5,610 3,630 3,360 2,590 1,720 2,080 2,770
17 3,480 3,700 4,070 4,720 6,700 5,560 3,630 3,370 2,550 1,600 2,040 2,690
18 3,330 3,560 3,970 4,730 6,720 5,370 3,640 3,360 2,550 1,510 2,150 2,630
19 3,250 3,540 3,960 4,800 6,690 5,340 3,640 3,330 2,550 1,460 2,070 2,580
20 3,090 3,800 3,970 4,990 6,590 5,300 3,620 3,300 2,510 1,510 2,010 2,520
21 2,990 3,830 3,900 5,200 6,590 5,310 3,590 3,330 2,490 1,620 1,990 2,550
22 2,920 3,700 3,900 5,220 6,630 5,350 3,560 3,330 2,480 1,660 1,970 2,640
23 2,790 3,750 3,920 5,240 6,600 5,360 3,550 3,290 2,460 1,670 2,030 2,510
24 2,930 3,670 3,930 5,450 6,610 5,260 3,550 3,290 2,450 1,620 2,190 2,440
25 3,220 3,630 3,910 5,540 6,690 5,100 3,540 3,280 2,430 1,590 2,500 2,480
26 3,130 3,550 3,890 5,450 6,720 4,960 3,530 3,250 2,390 1,580 2,640 2,790
27 3,010 3,430 3,870 5,470 6,720 4,810 3,490 3,210 2,370 1,600 2,480 2,930
28 2,930 3,480 3,820 5,600 6,610 4,640 3,470 3,170 2,330 1,630 2,340 2,730
29 2,910 5,440 3,810 5,680 6,520 4,490 3,470 3,110 2,320 1,640 2,350 2,540
30 2,920   3,900 5,640 6,530 4,460 3,460 3,080 2,270 1,640 2,500 2,600
31 3,220   4,110   6,470   3,430 3,020   1,700   2,550