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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 01480500 West Branch Brandywine Creek at Coatesville, PA


Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°59'08", Longitude  75°49'40" NAD27
Drainage area 45.8  square miles
Contributing drainage area 45.8  square miles
Gage datum 306.05 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 1943-10-01 -> 2023-09-30)

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 89 68 92 106 94 61 63 37 55 51 48 76
2 81 81 103 117 66 75 46 38 46 34 38 65
3 72 105 79 106 72 63 49 35 30 39 58 64
4 87 94 86 90 76 69 54 55 28 32 45 63
5 77 76 93 94 78 63 48 36 23 35 44 84
6 76 72 83 83 79 59 42 29 49 32 42 66
7 61 88 92 82 75 56 62 30 44 27 40 68
8 70 73 89 81 74 61 43 30 46 63 51 77
9 64 64 96 80 72 53 35 36 49 50 59 74
10 58 66 108 97 70 54 37 41 36 50 45 62
11 61 69 109 75 68 55 54 34 31 49 46 83
12 68 78 87 76 70 58 44 34 33 38 57 81
13 59 100 110 95 78 69 63 71 37 31 61 80
14 74 87 121 81 75 62 62 34 33 32 55 85
15 66 89 102 97 65 54 49 28 39 37 50 65
16 60 92 82 136 83 45 43 25 55 35 52 86
17 57 79 85 96 81 56 36 30 42 36 56 91
18 66 80 83 75 72 66 45 27 58 34 44 72
19 92 72 93 76 86 70 44 32 50 77 42 60
20 99 77 113 74 64 66 41 30 31 44 61 54
21 82 87 124 70 60 72 45 29 32 44 48 96
22 60 88 151 74 59 106 56 44 51 38 47 67
23 63 101 108 72 65 66 57 34 57 37 62 74
24 105 116 108 76 70 49 46 28 54 40 52 72
25 110 126 87 82 55 46 35 24 40 38 90 94
26 121 93 82 83 61 50 31 25 39 41 77 89
27 91 82 98 87 56 65 40 35 53 55 60 76
28 82 87 94 76 59 71 57 73 49 58 83 62
29 72 87 97 69 70 65 35 31 47 57 82 62
30 63   95 89 68 46 35 30 41 63 88 68
31 73   99   60   34 37   44   67