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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 01672500 SOUTH ANNA RIVER NEAR ASHLAND, VA


Hanover County, Virginia
Hydrologic Unit Code 02080106
Latitude  37°47'48", Longitude  77°32'57" NAD27
Drainage area 395  square miles
Gage datum 82.70 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 1930-10-01 -> 2022-09-30)

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
1 503 431 584 696 419 332 188 141 161 215 226 455
2 517 461 564 647 398 312 150 154 174 212 235 420
3 565 491 550 596 432 313 151 165 157 207 233 356
4 542 524 547 570 453 311 158 192 101 200 244 353
5 498 566 591 545 434 299 180 186 111 170 254 360
6 495 564 622 522 425 286 177 203 235 190 270 405
7 459 560 707 569 406 274 199 218 263 234 311 436
8 437 581 705 638 392 227 179 185 293 262 326 405
9 478 530 642 605 397 227 167 121 326 323 315 406
10 472 494 547 563 382 232 142 149 198 285 278 416
11 483 538 523 527 348 257 130 157 135 200 263 460
12 462 551 566 472 347 276 155 206 143 205 380 474
13 437 556 629 494 344 296 191 214 158 161 401 433
14 491 592 656 547 363 252 237 186 144 175 398 449
15 511 617 684 544 382 235 202 198 135 162 395 407
16 521 648 645 581 387 192 213 195 113 153 319 421
17 504 625 597 623 399 173 241 217 108 162 303 420
18 469 616 600 591 440 170 216 265 158 170 276 384
19 482 595 614 523 421 190 195 312 221 191 236 339
20 519 579 634 473 389 184 186 366 221 228 267 341
21 548 588 647 459 395 199 214 416 223 321 297 404
22 595 575 654 426 391 334 201 419 193 324 290 401
23 581 583 630 413 354 287 172 366 179 300 279 411
24 525 622 612 393 308 300 186 302 194 269 275 442
25 547 643 629 433 269 300 168 232 175 250 280 444
26 614 623 622 551 262 237 181 171 193 197 292 418
27 584 627 564 608 296 181 175 158 197 228 301 433
28 538 584 603 648 293 185 159 115 178 277 331 449
29 549 456 678 590 324 182 146 114 171 279 336 466
30 499   706 503 361 187 157 144 169 259 398 488
31 455   696   338   151 136   251   490