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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 -> 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
1 502 430 580 691 441 329 186 143 159 212 224 452
2 516 461 561 643 407 310 152 155 171 209 233 417
3 564 491 546 593 433 311 151 165 155 204 231 354
4 540 523 544 566 452 308 157 191 100 197 242 351
5 495 564 590 541 432 297 178 185 109 168 252 358
6 493 561 620 519 423 283 175 206 231 188 268 402
7 457 557 703 565 403 272 196 224 258 230 308 433
8 434 577 700 633 390 225 177 186 288 258 323 403
9 476 527 638 600 395 226 165 122 319 317 312 404
10 470 491 543 558 380 230 141 149 194 279 275 413
11 481 535 520 523 346 255 130 158 134 197 261 457
12 459 548 562 468 345 273 155 206 141 202 377 470
13 436 572 624 491 342 293 189 213 156 158 399 430
14 491 610 651 543 360 251 234 184 143 172 397 446
15 511 623 679 540 379 236 200 196 136 160 392 408
16 519 647 640 576 384 194 210 192 113 151 319 434
17 501 623 592 618 396 173 253 214 107 160 303 435
18 467 616 595 586 436 183 226 261 156 167 278 392
19 480 599 610 518 417 199 196 306 218 188 236 340
20 516 579 629 469 386 185 187 359 217 224 266 341
21 545 586 642 455 392 197 213 408 219 315 295 402
22 591 572 648 422 387 330 199 411 189 318 288 400
23 577 580 625 410 351 285 171 360 177 294 277 421
24 522 618 607 390 306 300 184 301 206 263 273 458
25 544 639 624 429 267 301 166 231 178 248 278 459
26 613 619 617 546 260 237 182 169 193 195 290 420
27 587 623 560 602 294 185 178 157 195 226 299 432
28 538 581 598 645 290 186 159 114 176 275 329 447
29 547 456 672 602 321 182 148 114 169 276 334 464
30 497   700 521 358 186 160 143 166 257 395 486
31 453   690   335   152 135   249   487