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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 01472198 Perkiomen Creek at East Greenville, PA


Montgomery County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°23'38", Longitude  75°30'57" NAD27
Drainage area 38.0  square miles
Contributing drainage area 38.0  square miles
Gage datum 287.5 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 1981-10-01 -> 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 75 56 81 113 91 58 45 37 69 54 52 82
2 64 66 108 133 66 81 43 46 52 41 46 79
3 68 102 75 131 81 55 35 32 32 36 75 76
4 70 97 87 110 81 59 33 88 32 35 38 64
5 60 77 81 101 78 60 38 33 31 41 39 89
6 60 84 81 110 86 54 39 29 56 31 41 73
7 57 69 83 96 81 58 67 42 60 27 35 75
8 66 60 91 96 75 50 42 31 52 91 48 65
9 63 53 99 85 71 49 48 34 44 40 46 68
10 72 56 114 104 76 47 41 32 33 39 48 67
11 62 63 112 82 70 47 67 43 32 41 42 101
12 69 71 102 86 79 46 53 31 29 37 48 91
13 66 79 99 102 90 82 46 77 32 45 51 89
14 65 62 110 75 76 54 51 36 30 37 42 93
15 55 77 99 93 62 44 52 33 61 40 44 68
16 61 88 84 154 71 47 37 26 73 39 59 79
17 56 72 88 101 72 49 36 47 39 34 60 103
18 72 77 82 82 63 50 39 30 80 31 47 99
19 119 69 86 82 68 50 34 29 36 75 48 61
20 100 73 90 91 68 75 31 27 37 45 58 57
21 58 83 112 79 57 70 29 34 28 45 53 82
22 52 83 132 77 61 48 62 66 28 35 58 66
23 68 85 113 81 56 43 60 41 48 40 87 79
24 96 99 111 76 59 42 52 27 47 43 52 84
25 105 110 92 76 57 52 35 24 37 36 63 104
26 92 75 83 89 57 48 48 25 38 36 67 68
27 83 72 93 77 66 48 51 23 75 58 64 67
28 79 80 109 76 54 66 63 86 69 72 102 92
29 75 83 104 70 103 46 33 31 56 69 69 70
30 66   105 100 79 37 28 29 47 63 90 61
31 73   106   64   38 24   48   60