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USGS Surface-Water Daily Statistics for North Carolina

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The daily maximum and minimum water level values for groundwater wells after September 30, 2023 are no longer being displayed on NWISWeb. However, these values can be determined using the instantaneous values that are available through the "Time-Series: Current/Historical Observations" option in the available data dropdown box for the station.


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 02118000 SOUTH YADKIN RIVER NEAR MOCKSVILLE, NC


Rowan County, North Carolina
Hydrologic Unit Code 03040102
Latitude  35°50'42", Longitude  80°39'32" NAD83
Drainage area 306  square miles
Gage datum 662.90 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 1938-10-01 -> 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
1 398 427 567 575 404 301 209 219 211 305 233 334
2 385 458 597 472 384 326 224 231 210 313 231 331
3 391 531 520 408 398 353 250 254 193 252 254 302
4 398 541 533 409 421 343 230 237 191 234 243 297
5 410 482 533 471 380 362 259 233 188 254 243 345
6 369 526 535 516 358 354 238 212 212 258 230 334
7 384 675 518 485 385 329 228 221 248 194 266 323
8 429 556 477 474 375 338 269 196 270 198 281 330
9 453 415 469 495 356 353 230 207 261 263 244 307
10 424 411 436 504 327 377 222 233 198 265 269 334
11 387 455 412 511 321 321 235 273 182 278 286 346
12 419 497 416 462 314 295 237 262 174 321 373 397
13 403 479 474 438 345 297 238 244 167 265 527 394
14 426 533 535 456 366 288 227 255 181 246 341 380
15 410 516 520 487 412 263 236 252 163 221 264 396
16 410 489 456 478 464 285 229 273 183 232 286 427
17 371 534 476 438 385 327 257 248 294 331 266 365
18 380 517 529 425 365 300 250 278 370 294 242 319
19 404 480 515 432 349 248 227 280 298 219 269 309
20 419 438 561 468 313 251 210 225 227 211 294 303
21 467 437 621 472 356 286 221 216 198 201 247 350
22 472 477 524 405 364 370 210 213 207 201 244 370
23 488 559 464 430 344 299 204 201 304 232 260 365
24 482 577 527 445 342 252 208 189 215 252 264 383
25 537 510 549 482 323 253 203 178 184 220 297 433
26 540 509 517 439 314 251 220 179 183 258 302 424
27 439 483 512 400 376 242 228 214 207 270 320 397
28 472 491 505 445 452 247 278 253 269 250 314 372
29 476 349 563 486 432 223 232 205 266 218 298 440
30 387   610 478 412 215 200 198 284 222 315 443
31 400   612   342   188 200   242   399