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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


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 01475548 Cobbs Creek at Mt. Moriah Cemetery, Philadelphia


Delaware County, Pennsylvania
Hydrologic Unit Code 02040202
Latitude  39°55'58.03", Longitude  75°14'15.49" NAD83
Drainage area 19.9  square miles
Gage datum 15.8 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 2005-10-01 -> 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 44 28 21 29 31 29 23 19 42 65 20 35
2 24 26 60 30 18 30 24 53 52 37 13 20
3 25 24 24 38 31 63 26 15 17 19 15 30
4 19 27 33 34 22 32 19 103 24 16 15 13
5 18 29 37 18 35 25 20 21 19 23 13 18
6 26 19 36 35 30 21 31 24 82 11 19 25
7 26 25 26 36 35 43 17 52 33 13 13 34
8 25 17 41 30 24 24 27 19 80 11 36 19
9 35 18 33 22 29 36 30 60 27 20 17 51
10 27 15 36 18 18 33 57 35 27 13 13 27
11 26 29 29 23 22 32 28 31 33 39 23 47
12 42 21 29 39 37 47 40 24 34 23 19 31
13 22 41 49 39 34 41 51 58 21 12 28 26
14 17 19 31 20 18 24 35 49 14 16 13 18
15 15 17 22 78 40 16 28 21 14 17 21 28
16 23 41 25 85 59 26 21 17 12 29 38 51
17 32 24 24 25 26 23 23 15 13 24 22 37
18 48 21 21 25 22 23 28 33 23 13 12 45
19 21 17 34 24 31 16 14 34 18 19 23 20
20 28 16 25 42 20 37 14 15 9.5 17 17 15
21 15 21 24 22 18 16 14 38 12 10 19 45
22 15 22 26 37 21 24 27 78 21 17 37 19
23 30 28 54 30 19 28 36 21 46 12 25 55
24 32 32 40 23 20 35 32 12 23 27 32 30
25 54 42 21 23 18 19 40 13 24 23 20 34
26 24 19 19 29 23 30 14 12 14 21 33 55
27 18 24 21 33 29 49 17 39 17 47 40 29
28 23 27 33 26 33 39 29 102 35 47 16 41
29 16 38 45 30 27 18 16 52 20 70 21 37
30 14   40 83 33 25 10 36 47 27 39 21
31 25   35   13   27 13   18   21