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USGS Surface-Water 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 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 -> 2024-09-30)

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
1 192 117 245 261 587 91 117 50 129 49 219 102
2 172 81 325 172 425 124 76 55 264 47 116 138
3 158 114 202 151 221 67 95 56 93 60 114 145
4 199 323 274 187 140 54 114 91 44 89 72 113
5 190 232 167 158 182 51 116 60 39 129 93 87
6 146 131 124 175 193 46 65 43 48 65 119 146
7 121 185 125 266 242 91 73 120 43 70 87 203
8 111 218 139 255 219 50 59 151 45 67 73 120
9 139 122 124 159 134 57 74 82 77 44 79 91
10 311 98 177 147 118 45 90 54 337 38 122 116
11 195 105 252 134 103 73 49 77 321 59 100 182
12 213 168 287 185 165 47 54 71 113 49 278 115
13 310 174 245 163 205 45 51 202 154 46 211 89
14 217 119 199 125 189 51 149 454 87 71 124 95
15 163 169 207 208 119 40 99 336 67 93 93 150
16 153 276 160 218 250 36 91 134 95 66 136 251
17 128 238 136 186 258 69 171 95 60 65 132 221
18 112 232 137 142 116 80 204 210 174 44 120 318
19 133 139 168 167 161 106 92 144 113 37 119 274
20 160 121 162 334 153 98 64 66 54 34 149 139
21 125 134 183 338 88 117 72 50 42 38 108 185
22 101 186 294 218 138 71 73 58 41 38 169 198
23 167 234 174 169 286 53 130 143 152 43 88 296
24 348 245 162 120 134 42 425 84 257 41 108 297
25 428 401 151 100 82 38 823 53 210 38 151 505
26 277 251 133 113 64 34 507 46 132 33 118 266
27 171 263 122 127 57 40 161 34 81 121 203 156
28 169 223 141 94 57 89 129 45 104 129 141 184
29 96 186 166 96 103 56 124 33 71 141 84 210
30 91   243 248 147 45 68 112 61 281 76 224
31 201   203   139   61 60   201   151