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USGS Daily Statistics for the Nation

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 -> 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 88 68 90 108 101 60 62 36 54 50 47 75
2 80 80 103 123 67 73 45 37 45 33 37 64
3 71 103 79 117 72 62 48 35 29 39 56 63
4 86 92 86 95 76 67 53 55 27 31 44 62
5 76 75 93 94 77 62 47 36 23 34 43 82
6 75 71 85 83 79 58 41 30 48 31 41 65
7 62 87 92 81 74 56 60 33 43 27 39 67
8 70 72 87 80 73 60 42 37 46 62 50 75
9 72 63 96 80 71 53 37 45 48 49 57 72
10 76 64 111 95 69 53 40 45 36 49 44 62
11 61 68 108 74 68 54 53 35 31 48 45 91
12 68 76 86 76 69 57 43 34 32 37 55 82
13 63 98 107 94 77 69 62 70 36 30 60 79
14 74 86 117 80 75 61 61 34 32 31 53 83
15 66 88 100 96 65 53 48 28 38 37 49 64
16 60 92 80 133 82 46 42 25 54 34 50 84
17 56 80 84 94 80 55 36 29 42 35 54 90
18 66 79 82 74 71 65 45 27 57 34 43 96
19 91 71 91 75 85 68 44 31 49 75 41 62
20 97 76 109 73 63 65 41 30 30 43 59 55
21 80 86 121 69 59 70 44 28 31 43 47 94
22 60 86 146 73 58 103 55 43 49 37 50 66
23 62 99 111 71 64 64 57 33 56 36 61 73
24 103 113 107 75 69 49 45 27 55 39 51 71
25 110 122 86 81 55 46 34 24 41 38 88 92
26 120 91 81 81 60 49 31 24 39 40 75 87
27 90 80 96 86 55 66 39 35 52 53 59 76
28 85 86 92 76 58 70 56 71 48 56 81 75
29 73 88 95 70 68 65 34 31 46 55 80 63
30 63   92 91 67 46 34 29 40 61 86 69
31 73   97   59   33 36   44   67