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USGS Daily Statistics for the Nation

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 01555500 East Mahantango Creek near Dalmatia, PA


Northumberland County, Pennsylvania
Hydrologic Unit Code 02050301
Latitude  40°36'40", Longitude  76°54'44" NAD27
Drainage area 162  square miles
Gage datum 400.47 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 1929-10-01 -> 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
1 253 240 360 447 317 206 126 93 103 136 160 345
2 287 259 378 467 267 212 121 95 138 132 162 356
3 283 323 348 502 259 203 116 92 79 164 214 263
4 277 330 367 459 262 182 106 108 102 118 177 307
5 264 276 459 441 257 175 101 94 85 114 164 317
6 279 241 420 451 299 189 95 91 113 109 154 312
7 289 286 389 425 329 172 104 83 208 94 160 309
8 292 266 357 388 295 156 109 78 265 95 158 313
9 316 223 360 380 293 142 106 74 105 180 237 306
10 335 224 383 392 272 137 120 81 107 168 191 269
11 271 284 499 378 276 174 103 82 96 109 174 326
12 247 265 486 359 320 152 100 97 83 103 183 328
13 234 273 407 361 320 150 91 99 106 98 214 330
14 244 289 402 364 306 146 111 101 79 127 189 353
15 247 278 473 379 289 129 117 76 78 112 199 301
16 247 283 411 423 322 130 113 67 86 102 216 273
17 221 288 389 487 345 123 122 60 110 118 252 287
18 227 277 409 381 291 144 108 84 221 122 221 293
19 331 284 387 327 286 153 106 121 152 165 205 260
20 313 306 420 341 275 159 100 75 100 165 225 246
21 278 319 432 351 282 168 91 68 83 169 233 347
22 266 356 505 327 270 567 134 69 87 136 241 292
23 249 347 473 299 322 316 154 77 139 148 241 261
24 346 417 466 274 287 191 225 149 123 167 199 302
25 453 429 466 289 252 142 229 94 157 130 252 352
26 395 419 431 277 261 142 191 85 250 143 266 292
27 362 366 463 282 263 158 114 87 211 144 228 280
28 320 380 429 294 248 222 97 83 199 164 289 257
29 263 345 440 272 260 205 109 74 191 172 323 248
30 246   397 263 249 137 105 61 146 192 314 288
31 261   439   233   92 66   162   270