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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 01480617 West Branch Brandywine Creek at Modena, PA


Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  39°57'42", Longitude  75°48'06" NAD27
Drainage area 55.0  square miles
Gage datum 262.52 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 1969-10-01 -> 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
1 109 89 113 139 134 83 96 55 90 76 66 95
2 98 103 130 155 92 84 66 55 65 50 54 89
3 92 139 100 140 95 79 70 45 43 56 77 85
4 97 120 103 121 99 86 76 80 42 45 53 76
5 87 99 121 115 91 85 71 52 37 50 62 112
6 80 93 113 105 103 81 59 43 75 45 60 83
7 76 96 114 110 97 77 86 48 59 40 55 88
8 89 93 111 114 98 84 56 55 68 94 70 89
9 86 79 119 109 95 73 54 67 72 73 69 100
10 81 83 140 128 95 74 58 68 46 73 62 82
11 80 90 135 102 90 72 71 54 43 72 62 109
12 88 103 109 100 94 74 59 52 48 57 75 106
13 76 132 124 118 101 89 82 103 52 45 86 104
14 93 104 142 103 94 72 94 52 46 46 78 116
15 78 102 124 129 85 64 63 43 55 54 70 90
16 77 113 106 167 109 62 59 39 92 52 74 119
17 77 95 113 125 99 78 52 46 66 52 79 124
18 88 96 108 99 83 85 52 42 64 51 63 103
19 126 93 123 99 109 82 51 47 56 110 60 84
20 129 95 140 99 79 88 56 43 47 66 80 79
21 113 99 156 94 77 99 76 44 46 64 67 128
22 80 110 190 98 77 141 70 59 75 56 60 93
23 86 122 129 92 80 92 65 45 77 50 79 100
24 134 148 131 98 83 70 59 39 78 58 62 98
25 146 165 113 104 70 64 49 35 64 56 80 123
26 163 121 109 108 82 73 44 35 61 56 88 113
27 120 95 122 110 73 94 54 55 78 75 79 94
28 112 98 115 98 75 97 76 106 69 78 106 80
29 97 104 116 93 91 101 51 46 65 79 95 80
30 87   123 129 85 68 51 42 55 87 110 76
31 96   129   76   52 50   63   77