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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
1 169 148 229 240 276 156 121 115 203 121 168 164
2 173 171 218 251 218 154 148 168 142 188 113 147
3 229 198 262 269 257 164 139 150 126 132 143 131
4 170 218 253 234 228 165 109 233 131 121 122 125
5 176 193 333 212 225 182 145 163 112 117 137 121
6 199 172 243 274 232 170 126 123 120 142 130 117
7 169 226 209 282 244 143 123 144 104 107 121 130
8 153 254 222 259 223 149 146 134 123 98 114 116
9 242 198 220 258 210 141 160 117 156 98 113 114
10 242 192 244 233 200 153 187 114 204 96 120 122
11 172 182 303 222 196 155 127 125 189 97 117 154
12 164 175 242 235 195 146 132 127 136 100 136 132
13 173 301 216 240 248 167 105 182 128 93 220 119
14 153 201 244 217 221 153 103 110 120 92 137 127
15 155 181 214 229 200 137 125 100 110 103 138 135
16 156 211 197 297 221 146 109 105 124 103 147 168
17 157 207 196 293 204 135 101 110 174 106 158 168
18 153 192 206 233 183 145 107 111 117 110 160 210
19 186 177 212 227 214 161 108 109 102 107 158 152
20 190 181 221 247 189 133 129 97 100 96 140 160
21 157 173 261 217 179 141 129 102 102 90 129 171
22 152 247 306 215 183 153 135 135 99 124 132 147
23 158 205 239 202 184 131 174 326 126 156 116 170
24 181 212 225 216 172 134 171 313 107 115 145 188
25 196 226 220 212 177 122 173 132 107 99 157 220
26 190 321 208 224 166 146 143 110 104 102 130 159
27 164 306 206 197 161 176 115 132 99 119 124 185
28 170 276 280 201 191 157 148 122 129 107 121 177
29 159 376 230 197 192 120 125 99 105 127 125 158
30 155   203 296 177 133 114 91 183 131 148 149
31 149   221   179   120 168   115   156