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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
1 132 103 140 295 171 110 130 49 40 83 86 140
2 139 99 131 299 158 97 94 42 60 76 79 148
3 121 115 132 308 144 85 71 40 51 76 82 136
4 116 122 137 333 143 77 61 42 61 68 78 143
5 120 113 163 330 146 70 54 41 44 68 72 138
6 119 109 199 299 154 75 49 39 43 64 70 130
7 118 114 195 277 149 79 44 40 58 57 69 136
8 117 109 180 276 133 74 42 45 59 53 76 135
9 123 102 189 242 130 65 41 54 62 50 114 130
10 115 94 206 246 133 64 38 68 57 50 104 131
11 114 96 213 237 143 62 36 56 65 53 103 147
12 118 108 204 208 152 62 37 48 51 69 94 162
13 116 104 200 206 158 68 39 44 48 73 103 154
14 125 98 200 214 162 82 41 44 47 63 107 150
15 123 104 215 201 148 81 39 46 44 59 112 128
16 111 114 209 243 144 79 41 44 46 63 106 116
17 99 117 194 246 145 72 39 39 45 71 124 118
18 98 115 200 212 133 68 39 48 72 72 113 140
19 109 116 204 187 136 67 35 57 69 93 104 134
20 128 123 218 178 140 60 33 42 53 102 100 112
21 111 128 215 169 131 65 32 36 44 95 107 111
22 101 130 226 162 117 68 31 36 39 93 101 118
23 97 132 225 160 111 81 31 44 45 83 105 123
24 106 147 218 160 109 83 33 40 64 83 101 128
25 137 185 231 172 109 70 37 37 87 77 98 146
26 153 189 242 169 97 68 37 35 85 85 103 137
27 143 154 262 175 87 90 34 35 83 94 135 127
28 140 151 258 170 80 135 35 42 93 105 147 120
29 124 160 283 160 102 148 38 47 89 109 149 116
30 114   290 149 109 145 40 47 74 100 140 118
31 111   286   100   44 43   92   126