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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 01480700 East Branch Brandywine Creek near Downingtown, PA


Chester County, Pennsylvania
Hydrologic Unit Code 02040205
Latitude  40°02'05", Longitude  75°42'32" NAD27
Drainage area 60.6  square miles
Contributing drainage area 60.6  square miles
Gage datum 254.7 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 1973-10-01 -> 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
1 123 104 120 157 132 87 78 54 103 77 69 112
2 115 107 137 162 116 83 75 54 69 58 64 98
3 123 128 114 163 114 80 69 48 60 61 78 101
4 122 126 120 138 114 91 60 83 51 55 70 90
5 107 117 124 140 109 86 65 56 44 58 79 118
6 106 106 117 126 118 84 58 51 86 55 74 109
7 109 103 118 121 113 85 80 50 70 47 68 116
8 117 95 121 116 111 87 70 54 62 71 86 114
9 120 93 126 121 109 88 65 68 65 66 88 120
10 111 94 147 149 105 89 60 66 55 73 82 112
11 105 100 135 121 111 88 69 52 50 69 77 145
12 114 107 118 123 111 78 67 54 45 64 85 130
13 105 113 136 139 107 103 85 99 48 60 86 117
14 114 100 155 120 109 83 91 60 45 60 75 136
15 99 121 140 144 96 76 72 54 69 65 77 117
16 104 128 120 186 122 76 66 49 84 65 86 145
17 98 107 119 145 113 85 61 53 65 63 81 140
18 107 109 117 127 97 90 60 48 77 58 69 144
19 131 104 137 124 111 89 58 47 60 97 69 106
20 137 105 140 121 91 97 60 45 55 79 81 93
21 128 110 172 111 86 84 64 47 53 77 78 147
22 93 107 184 113 87 76 70 58 78 65 80 103
23 101 113 151 110 97 72 75 42 81 62 87 117
24 141 152 156 106 101 74 70 41 78 61 77 113
25 163 160 133 116 81 67 64 39 72 60 83 135
26 168 133 124 115 92 76 55 36 74 59 94 128
27 136 108 137 120 87 78 63 40 84 83 92 113
28 126 116 145 118 81 102 76 92 85 83 119 122
29 113 129 137 111 107 70 55 58 76 89 112 108
30 107   137 136 96 63 53 52 67 84 120 99
31 108   145   84   52 52   68   97