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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 01553850 Chillisquaque Creek near Potts Grove, PA


Northumberland County, Pennsylvania
Hydrologic Unit Code 02050206
Latitude  40°58'28", Longitude  76°48'00" NAD83
Drainage area 101.2  square miles
Gage datum 439.1 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 2012-10-01 -> 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
1 185 127 249 246 542 87 110 47 121 46 201 96
2 167 89 329 194 394 117 72 53 244 44 107 128
3 151 116 227 264 206 65 89 58 86 56 105 134
4 188 306 275 328 131 52 107 90 41 82 67 105
5 179 222 174 199 172 50 110 58 37 119 86 81
6 138 128 136 193 183 46 63 42 45 60 110 135
7 115 177 179 268 226 87 70 125 40 64 80 187
8 104 206 163 252 205 49 56 149 42 62 68 111
9 130 119 157 161 126 55 69 131 72 41 73 85
10 288 97 269 147 124 44 84 136 310 36 112 107
11 182 103 276 134 112 69 75 90 295 55 93 181
12 199 160 291 206 168 45 55 74 104 45 256 140
13 288 166 243 175 202 43 50 191 142 42 194 93
14 202 117 197 133 185 49 140 421 81 66 114 94
15 152 161 203 210 154 39 93 312 62 86 86 141
16 143 259 159 213 254 35 85 126 88 61 125 234
17 120 225 135 182 252 65 158 92 56 61 121 210
18 105 219 134 142 118 75 197 197 160 40 110 300
19 125 134 161 163 158 99 89 136 104 35 110 263
20 149 117 156 315 148 91 61 64 50 32 137 136
21 117 129 174 318 87 109 72 48 39 35 101 176
22 94 178 275 206 135 66 71 55 38 36 157 186
23 155 242 181 161 299 51 123 133 140 40 83 276
24 322 244 167 116 138 41 393 79 237 38 101 277
25 396 379 150 96 84 37 760 51 193 35 139 466
26 257 241 132 108 67 34 468 44 122 31 109 247
27 171 251 120 121 59 46 150 33 76 111 188 146
28 169 244 137 90 64 86 120 43 96 118 132 171
29 169 328 159 92 101 54 115 31 66 129 82 198
30 118   229 232 141 44 64 104 56 259 72 216
31 209   193   132   58 56   185   146