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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 01429000 West Branch Lackawaxen River at Prompton, PA


Wayne County, Pennsylvania
Hydrologic Unit Code 02040103
Latitude  41°35'14", Longitude  75°19'38" NAD27
Drainage area 59.7  square miles
Gage datum 1,083.14 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 1960-10-01 -> 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
1 129 104 139 295 171 110 130 49 40 83 87 140
2 135 100 130 299 158 97 94 42 60 76 80 149
3 118 116 131 308 144 85 71 40 51 76 83 137
4 114 123 137 333 143 77 61 42 61 68 79 144
5 119 114 164 330 146 70 54 41 44 68 73 139
6 118 110 191 299 154 75 49 39 43 64 71 131
7 118 115 189 277 149 79 44 40 58 57 70 137
8 118 110 177 276 133 74 42 45 59 53 77 137
9 124 103 188 242 130 65 41 54 62 50 116 131
10 116 95 206 246 133 64 38 68 57 50 105 131
11 115 97 213 237 143 62 36 56 65 53 104 143
12 119 109 204 208 152 62 37 48 51 69 96 150
13 117 105 200 206 158 68 39 44 48 73 104 148
14 126 99 201 214 162 82 41 44 47 63 109 148
15 124 105 216 201 148 81 39 46 44 59 114 127
16 112 115 210 243 144 79 41 44 46 63 107 115
17 100 118 193 246 145 72 39 39 45 71 126 117
18 98 116 199 212 133 68 39 48 72 72 114 139
19 110 117 204 187 136 67 35 57 69 93 105 133
20 129 125 219 178 140 60 33 42 53 102 101 111
21 112 129 216 169 131 65 32 36 44 95 108 110
22 102 132 227 162 117 68 31 36 39 93 103 118
23 97 134 227 160 111 81 31 44 45 84 106 123
24 107 149 219 160 109 83 33 40 64 84 102 128
25 139 188 233 172 109 70 37 37 87 78 99 146
26 154 191 244 169 97 68 37 35 85 86 104 138
27 145 155 265 175 87 90 34 35 83 96 134 127
28 141 150 261 170 80 135 35 42 93 107 147 121
29 125 160 286 160 102 148 38 47 89 110 149 116
30 115   293 149 109 145 40 47 74 101 140 117
31 112   289   100   44 43   93   125