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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 water year of record in, ft3/s   (Calculation Period 1978-10-01 -> 2019-09-30)

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
1 338 233 478 464 545 239 181 122 55 240 76 393
2 347 290 464 360 451 262 186 120 55 290 89 275
3 332 459 567 393 321 321 146 96 54 259 114 232
4 197 575 573 420 314 413 111 112 60 184 269 215
5 222 351 698 450 405 478 94 138 102 157 403 253
6 244 287 652 336 546 373 120 156 230 124 338 243
7 247 318 531 307 463 297 148 104 194 84 229 255
8 378 265 472 311 393 336 124 90 125 73 166 384
9 369 266 481 301 414 220 86 140 74 78 187 426
10 316 296 523 334 437 244 86 84 68 87 131 368
11 331 294 513 350 342 260 106 91 66 157 169 451
12 504 404 411 303 323 159 107 111 112 235 167 359
13 372 412 445 324 244 182 83 102 144 171 215 308
14 299 524 465 309 212 189 83 89 79 142 171 300
15 304 508 356 424 275 146 74 122 62 82 154 300
16 367 397 312 780 454 104 118 94 63 76 258 315
17 347 362 349 805 420 115 99 88 85 71 228 183
18 277 380 403 551 437 102 100 226 162 64 150 189
19 344 360 360 427 399 114 118 223 103 110 138 181
20 524 450 354 410 298 120 72 154 89 149 124 184
21 479 466 454 363 290 136 98 150 172 87 138 212
22 453 455 513 346 309 345 145 154 189 67 129 236
23 305 505 436 330 290 399 111 91 168 137 130 242
24 334 770 493 364 353 241 138 98 134 180 139 281
25 456 777 496 469 380 165 133 96 117 92 215 306
26 378 717 390 437 301 134 79 74 179 72 203 295
27 324 508 420 379 366 342 109 74 173 102 221 275
28 338 448 713 362 273 349 147 72 124 91 422 339
29 333 343 996 337 315 189 137 71 109 65 524 405
30 237   851 414 321 141 84 68 92 69 511 404
31 231   640   276   166 60   73   331