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USGS Surface-Water Daily Statistics for Maryland

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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 01613000 POTOMAC RIVER AT HANCOCK, MD


Washington County, Maryland
Hydrologic Unit Code 02070004
Latitude  39°41'51.2", Longitude  78°10'40.4" NAD83
Drainage area 4,064  square miles
Gage datum 383.00 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 1932-10-01 -> 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 4,970 5,200 7,820 7,900 6,520 4,570 1,990 1,820 1,130 1,580 2,010 3,760
2 5,290 5,320 8,090 7,980 5,780 4,000 1,870 1,640 1,420 1,690 1,880 4,030
3 5,150 5,590 7,400 7,930 5,470 4,510 1,700 1,500 1,250 1,710 1,970 3,650
4 4,980 6,050 7,380 7,440 5,850 4,770 1,720 1,460 1,160 1,700 2,050 3,450
5 4,860 5,860 9,070 7,930 6,600 4,290 1,880 1,510 1,200 1,470 2,760 3,790
6 4,930 5,610 9,990 8,160 7,230 3,920 1,850 1,430 1,390 1,440 3,770 3,460
7 4,650 5,550 9,600 7,580 7,820 3,500 1,780 1,740 2,740 1,780 2,460 3,320
8 4,620 5,660 9,070 7,620 8,190 3,310 1,730 1,660 2,700 1,530 2,540 3,970
9 4,730 5,340 8,050 7,170 8,330 3,350 1,710 1,440 1,990 1,720 2,860 4,080
10 4,720 5,520 7,680 7,360 7,080 2,960 1,750 1,340 2,260 2,330 2,680 4,000
11 4,940 5,390 7,710 7,540 6,470 3,030 1,690 1,280 1,770 1,970 2,380 4,110
12 4,660 5,360 7,870 7,230 6,310 3,290 1,640 1,320 1,400 1,550 2,160 4,210
13 4,720 5,530 8,370 7,470 6,020 3,400 1,660 1,550 1,360 1,410 2,370 3,920
14 4,490 6,010 9,760 8,080 5,810 3,840 1,670 2,020 1,480 1,320 2,480 3,930
15 4,390 6,720 10,200 7,910 5,600 3,210 1,560 1,640 1,260 1,830 2,400 3,930
16 4,750 6,050 9,610 7,830 6,070 2,670 1,490 1,390 1,220 3,380 2,280 4,600
17 4,750 5,910 8,770 9,070 6,960 2,470 1,440 1,320 1,280 2,860 2,440 4,650
18 4,330 6,100 10,700 8,430 6,930 2,470 1,600 1,550 1,970 1,840 2,410 4,180
19 4,720 6,510 9,050 6,760 6,720 3,300 1,410 2,620 2,480 2,050 2,200 4,040
20 5,780 6,890 9,370 7,100 5,940 2,880 1,350 1,890 2,350 1,720 2,640 3,790
21 5,270 6,660 10,100 7,570 5,640 2,970 1,430 1,430 1,640 1,740 2,950 3,510
22 5,100 6,850 10,600 6,630 5,590 3,540 1,370 1,440 1,500 1,810 3,000 3,850
23 5,060 7,200 9,990 6,550 5,540 3,800 1,500 1,330 1,600 1,680 2,860 4,270
24 5,150 7,750 9,810 5,880 4,970 3,460 1,500 1,370 1,780 1,720 2,590 4,080
25 5,830 8,100 9,700 6,320 4,700 2,630 1,380 1,640 1,790 1,770 2,500 4,080
26 6,300 8,390 8,970 7,270 4,450 2,180 1,300 1,570 2,050 1,780 2,520 4,310
27 6,210 8,780 8,460 7,700 4,130 2,000 1,230 1,550 1,730 1,740 2,680 4,940
28 5,760 7,910 8,000 7,150 4,290 2,180 1,270 1,370 1,920 2,130 2,870 4,760
29 5,490 7,970 8,770 7,240 4,770 2,250 1,400 1,260 2,110 2,890 3,180 4,420
30 5,050   8,530 6,740 4,570 2,250 1,500 1,200 1,750 2,640 3,550 4,830
31 5,220   8,090   4,150   1,720 1,130   2,320   5,230