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USGS Daily Statistics for Virginia

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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 -> 2020-09-30)

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
1 508 433 570 681 413 337 189 142 159 208 189 440
2 513 464 550 629 391 318 143 155 160 211 203 402
3 548 493 543 580 433 319 145 167 148 207 221 341
4 528 526 547 569 459 317 158 187 97 200 240 352
5 489 566 594 546 440 304 181 180 109 171 253 344
6 491 558 627 524 431 289 180 195 238 192 271 381
7 457 556 716 570 408 279 202 194 266 237 313 415
8 435 575 713 640 395 230 181 170 298 266 329 394
9 479 527 649 607 399 231 169 117 331 328 318 407
10 472 494 551 565 387 236 144 149 200 289 280 418
11 483 541 526 530 352 259 132 158 136 203 260 465
12 461 553 568 473 352 262 157 208 144 206 306 479
13 438 558 629 497 349 289 194 217 160 151 339 438
14 494 593 656 552 369 252 242 186 145 168 339 446
15 516 615 689 549 388 237 206 193 137 160 332 392
16 525 627 651 586 392 194 215 183 114 146 286 405
17 503 603 597 630 406 174 245 211 109 159 300 399
18 467 594 592 598 448 171 220 264 159 170 276 364
19 482 576 600 526 429 191 198 313 224 192 235 329
20 522 572 628 474 397 184 190 367 224 230 268 337
21 551 585 649 460 404 199 218 418 226 326 299 404
22 597 572 659 428 399 336 204 423 195 329 292 402
23 585 571 636 416 361 289 175 370 180 305 281 413
24 530 611 613 396 312 303 188 306 194 273 277 444
25 553 641 618 435 270 304 169 235 175 252 282 421
26 618 625 611 554 262 240 183 172 195 197 295 392
27 586 628 563 603 299 184 177 160 197 229 304 405
28 540 579 605 652 294 187 162 116 179 278 335 433
29 554 456 682 598 319 184 148 114 173 274 339 467
30 503   711 507 361 189 159 145 165 223 398 491
31 459   701   342   153 132   213   494