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USGS 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 01610000 POTOMAC RIVER AT PAW PAW, WV


Allegany County, Maryland
Hydrologic Unit Code 02070003
Latitude  39°32'19.9", Longitude  78°27'20.2" NAD83
Drainage area 3,129  square miles
Gage datum 487.21 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 1938-10-01 -> 2025-09-30)

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 4,110 4,330 6,630 6,470 5,260 3,770 1,680 1,550 994 1,380 1,500 2,980
2 4,440 4,620 6,660 6,660 4,620 3,260 1,580 1,290 1,190 1,480 1,460 3,170
3 4,150 4,620 6,180 6,640 4,550 3,850 1,390 1,180 1,010 1,420 1,610 2,830
4 3,970 4,940 6,440 6,470 4,980 3,730 1,600 1,200 943 1,330 1,670 2,920
5 3,940 4,630 7,950 6,780 5,570 3,590 1,590 1,150 939 1,180 2,830 3,050
6 3,950 4,460 8,360 6,520 6,080 3,210 1,570 1,290 1,100 1,290 2,960 2,770
7 3,650 4,870 8,060 6,030 6,360 2,960 1,500 1,440 2,360 1,470 1,910 2,780
8 3,610 4,790 7,420 5,950 6,710 2,840 1,470 1,250 1,790 1,270 2,150 3,390
9 3,680 4,330 6,630 5,800 6,530 2,690 1,540 1,130 1,690 1,570 2,300 3,400
10 3,640 4,660 6,640 6,160 5,540 2,440 1,450 1,110 1,730 1,930 2,010 3,340
11 3,680 4,310 6,640 5,970 5,180 2,650 1,430 1,090 1,320 1,470 1,820 3,430
12 3,760 4,450 6,610 5,660 5,130 2,750 1,370 1,070 1,130 1,280 1,820 3,370
13 3,800 4,590 7,240 6,230 4,750 2,900 1,500 1,470 1,200 1,150 1,950 3,330
14 3,570 4,940 7,980 6,660 4,710 3,110 1,420 1,630 1,200 1,130 1,890 3,270
15 3,620 5,300 8,150 6,440 4,560 2,470 1,330 1,290 1,020 1,620 1,850 3,320
16 3,910 4,670 7,430 6,640 5,100 2,110 1,240 1,150 946 2,860 1,780 3,870
17 3,740 4,800 6,730 7,820 5,620 2,050 1,210 1,100 1,010 1,770 2,030 3,700
18 3,450 5,010 6,330 6,440 5,520 2,450 1,310 1,480 1,590 1,480 1,880 3,350
19 3,830 5,450 6,160 5,380 5,350 2,800 1,150 2,060 1,980 1,460 1,770 3,190
20 4,690 5,600 7,610 5,800 4,760 2,370 1,240 1,300 1,760 1,220 2,230 2,970
21 3,880 5,420 7,910 5,670 4,720 2,510 1,220 1,210 1,310 1,310 2,210 2,930
22 3,700 5,510 8,380 5,180 4,450 2,640 1,250 1,150 1,270 1,400 2,250 3,370
23 3,510 5,970 7,840 5,170 4,470 2,690 1,270 1,100 1,430 1,300 2,260 3,530
24 3,950 6,630 7,970 4,880 3,950 2,510 1,160 1,130 1,520 1,430 2,060 3,410
25 4,520 6,940 7,760 5,330 3,780 2,020 1,090 1,110 1,480 1,450 2,060 3,490
26 4,850 7,080 7,210 5,260 3,590 1,740 1,030 1,000 1,590 1,420 2,090 3,750
27 4,820 6,730 6,790 5,070 3,380 1,620 1,040 983 1,300 1,340 2,210 4,090
28 4,740 6,150 6,480 5,560 3,770 1,910 1,120 996 1,700 1,320 2,410 3,730
29 4,520 5,630 7,280 5,690 4,100 1,920 1,150 1,010 1,740 1,330 2,720 3,540
30 4,260   6,820 5,410 3,710 1,790 1,440 989 1,390 1,730 3,010 4,070
31 4,450   6,760   3,610   1,410 937   1,620   4,190