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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 01670400 NORTH ANNA RIVER NEAR PARTLOW, VA


Louisa County, Virginia
Hydrologic Unit Code 02080106
Latitude  38°00'46", Longitude  77°42'05" NAD27
Drainage area 342  square miles
Gage datum 167.45 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 1978-10-01 -> 2021-09-30)

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
1 331 231 465 461 565 233 173 118 102 234 122 449
2 374 287 451 360 462 256 177 116 89 295 124 314
3 350 450 550 387 323 313 139 93 63 247 121 250
4 199 562 556 409 316 402 107 108 61 176 265 215
5 232 346 677 438 404 465 91 132 101 150 390 307
6 242 296 633 327 541 381 115 151 220 120 330 297
7 245 377 516 299 458 290 142 102 185 82 228 288
8 368 299 459 303 385 327 119 88 120 71 166 397
9 360 275 471 294 403 215 83 136 73 76 182 412
10 310 303 512 326 425 238 84 83 68 84 127 349
11 324 301 503 341 333 254 102 89 66 152 200 427
12 491 408 405 298 314 154 103 108 109 261 378 345
13 375 415 439 358 238 177 81 102 139 183 385 306
14 307 524 456 369 207 190 81 128 78 140 253 327
15 312 508 348 461 268 143 73 139 63 81 199 326
16 372 395 304 792 442 101 114 99 74 75 288 352
17 351 356 340 807 417 112 96 94 94 69 248 244
18 276 374 393 545 436 101 97 223 164 64 144 227
19 339 354 351 424 398 118 113 220 100 106 133 199
20 514 441 345 407 295 135 70 155 86 143 124 207
21 470 456 449 363 283 150 95 151 164 84 138 233
22 444 446 504 343 306 328 139 153 180 66 126 225
23 301 494 425 327 283 379 107 88 160 131 134 240
24 329 751 480 364 343 229 133 95 128 172 137 299
25 472 759 486 491 370 158 128 94 113 89 205 420
26 396 699 389 460 293 139 77 73 170 70 194 366
27 330 497 415 399 356 333 105 73 164 99 211 310
28 344 440 696 363 267 331 141 71 119 88 399 357
29 339 323 970 343 307 180 132 72 107 99 500 413
30 244   830 430 313 135 82 67 100 169 536 393
31 232   627   270   159 74   140   324