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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 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 28 - 29 years of record in, ft3/s   (Calculation Period 1978-10-01 -> 2018-09-30)

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
1 321 233 440 459 554 235 181 122 55 242 77 368
2 342 293 419 360 458 259 186 120 54 298 90 271
3 327 467 526 395 321 320 146 96 54 266 116 228
4 194 587 521 426 312 415 111 112 59 188 271 210
5 220 355 662 454 400 482 94 138 104 160 365 249
6 243 288 663 335 553 375 120 156 235 127 264 239
7 246 315 537 305 469 283 148 104 199 84 159 253
8 381 264 477 309 401 332 124 90 127 73 127 388
9 372 268 486 299 422 216 86 140 73 78 148 432
10 317 298 529 333 446 240 86 84 68 87 105 372
11 333 288 519 351 335 258 106 91 66 121 162 457
12 512 372 412 303 321 159 107 111 114 93 155 362
13 373 378 416 296 229 182 83 102 147 93 150 309
14 292 518 431 280 207 189 83 89 79 112 122 273
15 300 509 348 427 273 146 74 122 62 72 102 252
16 369 393 321 797 465 104 118 96 63 66 154 208
17 350 360 359 826 432 115 99 89 64 60 167 161
18 277 376 415 563 450 102 100 232 71 57 105 178
19 342 354 364 414 411 114 118 229 66 111 122 170
20 481 423 354 380 306 120 72 153 79 152 115 165
21 471 385 404 363 298 136 98 143 165 87 130 168
22 451 383 416 346 317 345 145 145 182 67 120 186
23 298 473 366 329 297 399 111 82 142 139 122 233
24 308 709 470 364 362 241 138 91 101 184 106 274
25 403 727 502 473 391 165 133 89 85 93 144 300
26 371 727 391 425 309 134 79 73 135 70 172 288
27 317 508 422 368 369 342 109 75 128 61 182 269
28 332 446 725 363 273 349 147 72 78 56 413 287
29 327 343 1,020 337 321 189 137 71 85 60 539 350
30 232   868 417 330 141 84 68 83 69 526 366
31 230   638   282   166 60   73   290