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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
1 500 431 579 688 441 329 186 143 159 212 222 448
2 513 461 570 642 407 310 152 155 171 209 231 413
3 560 489 559 593 433 311 151 165 155 204 229 351
4 536 520 549 579 452 308 157 191 100 197 240 348
5 492 561 593 560 432 297 178 185 109 168 250 356
6 491 558 624 534 423 283 175 206 231 188 266 399
7 464 553 707 566 403 272 196 224 258 230 305 430
8 443 573 700 631 390 225 177 186 288 258 320 399
9 486 523 640 598 395 226 165 122 319 317 309 401
10 523 488 555 556 380 230 141 149 194 279 273 410
11 520 532 534 521 346 255 130 158 134 197 259 463
12 495 547 567 468 345 273 155 206 141 202 373 484
13 483 572 624 491 342 293 189 213 156 158 395 439
14 517 613 649 541 360 251 234 184 143 172 393 446
15 515 625 676 539 379 236 200 196 136 160 388 407
16 520 645 637 574 384 194 210 192 113 151 315 432
17 501 621 589 614 396 173 253 214 107 160 300 433
18 466 613 592 583 436 183 226 261 156 167 275 406
19 478 596 606 515 417 199 196 306 218 188 234 358
20 514 575 625 467 386 185 187 359 217 224 264 353
21 542 582 637 453 392 197 213 408 219 315 292 404
22 588 569 644 420 387 330 199 411 189 318 288 400
23 574 576 633 408 351 285 171 360 177 294 282 419
24 519 614 622 388 306 300 184 301 206 263 276 456
25 541 635 630 429 267 301 166 231 178 246 278 456
26 609 615 617 546 260 237 182 169 193 193 289 417
27 583 619 561 602 294 185 178 157 195 224 297 433
28 540 578 608 645 290 186 159 114 176 272 327 463
29 561 465 682 602 321 182 148 114 169 274 331 475
30 513   702 521 358 186 160 143 166 255 392 488
31 459   689   335   152 135   246   487