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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 01577500 Muddy Creek at Castle Fin, PA


York County, Pennsylvania
Hydrologic Unit Code 02050306
Latitude  39°46'21", Longitude  76°18'58" NAD27
Drainage area 133.00  square miles
Gage datum 175.42 feet above NGVD29
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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 1928-10-01 -> 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
1 171 150 236 241 276 156 121 115 203 121 173 169
2 177 173 225 257 218 154 148 168 142 188 115 151
3 235 203 270 276 257 164 139 150 126 132 147 135
4 174 224 261 237 228 165 109 233 131 121 125 128
5 180 199 344 215 225 182 145 163 112 117 140 124
6 205 176 247 279 232 170 126 123 120 142 133 120
7 174 232 214 287 244 143 123 144 104 107 124 134
8 157 262 228 264 223 149 146 134 123 98 116 118
9 250 204 226 264 210 141 160 117 156 98 115 116
10 250 197 251 238 200 153 187 114 204 96 123 125
11 176 187 312 226 196 155 127 125 189 97 118 155
12 168 179 249 238 195 146 132 127 136 100 139 130
13 178 311 222 245 248 167 105 182 128 93 227 120
14 157 206 252 221 221 153 103 110 120 92 140 129
15 159 186 220 234 200 137 125 100 110 103 141 138
16 160 213 202 305 221 146 109 105 124 103 151 170
17 161 207 200 293 204 135 101 110 174 106 163 171
18 157 196 211 233 183 145 107 111 117 110 164 215
19 192 181 218 227 214 161 108 109 102 107 162 155
20 196 185 227 247 189 133 129 97 100 96 143 163
21 161 177 268 217 179 141 129 102 102 90 130 175
22 156 255 316 215 183 153 135 135 99 124 135 151
23 162 211 246 202 184 131 174 326 126 161 117 176
24 186 218 231 216 172 134 171 313 107 118 148 193
25 202 232 226 212 177 122 173 132 107 101 161 226
26 195 332 214 224 166 146 143 110 104 104 133 163
27 168 316 212 197 161 176 115 132 99 121 127 190
28 175 285 289 201 191 157 148 122 129 109 122 180
29 163 376 237 197 192 120 125 99 105 130 127 160
30 158   209 296 177 133 114 91 190 135 152 152
31 152   227   179   120 168   118   159