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USGS Surface-Water Daily Statistics for Pennsylvania

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[!] ICE EFFECTS ON STREAMFLOW -- During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.



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 03049500 Allegheny River at Natrona, PA


Allegheny County, Pennsylvania
Hydrologic Unit Code 05010009
Latitude  40°36'55", Longitude  79°43'07" NAD27
Drainage area 11,410  square miles
Gage datum 736.36 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 1938-10-01 -> 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 29,000 25,100 33,200 39,500 25,200 17,200 12,600 8,600 6,390 8,910 13,400 23,000
2 28,400 24,200 33,500 38,400 24,300 17,100 12,500 8,010 6,660 9,330 13,900 23,300
3 28,200 24,500 34,300 40,600 23,700 17,000 12,300 8,060 6,820 9,710 14,100 22,600
4 28,900 24,300 35,100 41,200 23,200 16,800 11,400 7,930 6,930 9,800 14,500 23,300
5 29,600 24,100 36,600 42,500 22,500 17,000 10,400 8,120 6,660 9,700 14,700 24,200
6 29,300 24,300 37,800 44,000 21,800 16,500 10,200 7,910 6,320 9,370 15,200 24,000
7 28,800 24,300 38,300 41,900 21,300 15,400 9,830 7,570 6,380 9,130 15,000 24,100
8 27,600 24,100 37,700 40,600 21,500 14,800 9,560 7,660 6,260 9,130 14,700 24,800
9 26,400 23,100 38,800 40,000 22,300 14,900 9,400 7,650 7,000 9,030 14,600 25,000
10 24,700 22,500 38,900 39,700 22,500 15,000 9,060 7,630 8,270 9,020 14,400 25,100
11 23,400 24,100 38,100 38,000 23,000 14,000 8,830 7,560 7,760 8,800 15,300 25,400
12 23,600 24,500 37,700 37,500 24,000 13,900 8,950 7,720 7,420 8,620 15,800 25,800
13 24,900 24,800 38,400 37,200 26,500 14,200 9,270 7,800 7,430 8,540 16,200 26,700
14 23,900 26,300 38,300 35,500 26,500 15,100 9,240 7,700 7,590 8,730 16,000 27,300
15 23,500 26,500 38,700 34,800 25,500 15,600 8,940 8,230 7,790 9,150 15,900 27,200
16 23,600 27,100 38,600 34,100 25,300 15,400 9,300 7,680 7,880 10,600 16,100 25,800
17 23,200 27,600 38,500 33,800 25,300 15,300 9,200 7,110 7,990 10,400 17,900 24,800
18 23,300 27,800 38,900 33,100 25,300 15,300 8,780 6,830 9,600 10,700 18,300 24,900
19 24,400 27,900 36,800 32,200 24,700 15,500 8,730 6,400 9,270 11,000 18,900 24,600
20 24,700 28,700 37,000 32,200 24,300 15,500 9,860 6,510 8,930 11,200 19,600 23,300
21 24,200 29,500 37,000 31,000 23,800 15,200 9,450 6,540 8,820 11,000 19,300 23,400
22 24,600 29,800 38,500 29,700 23,700 14,800 9,870 6,570 8,670 10,800 19,100 24,400
23 24,500 31,400 39,000 28,200 23,600 15,200 10,300 6,480 8,840 10,500 19,200 23,900
24 25,100 31,600 37,800 27,500 22,900 14,700 9,930 6,250 8,370 10,400 19,300 24,500
25 26,000 32,300 37,000 27,500 21,700 14,000 9,590 6,110 8,070 10,700 19,600 25,500
26 26,600 32,600 36,600 28,000 21,300 14,400 8,930 5,840 7,940 11,000 20,100 25,900
27 26,900 32,100 36,800 28,000 20,800 13,100 8,520 5,770 8,020 11,300 21,300 25,800
28 27,000 32,900 36,700 27,000 20,200 13,200 8,450 5,720 8,240 12,000 22,000 26,300
29 26,200 32,300 37,600 27,000 19,700 13,200 8,270 6,070 8,660 12,700 22,400 27,400
30 25,500   37,800 26,900 18,300 12,700 7,990 6,310 9,010 13,100 22,700 29,200
31 26,500   39,300   17,700   8,270 6,320   13,100   30,200