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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 01556000 Frankstown Br Juniata River at Williamsburg, PA


Blair County, Pennsylvania
Hydrologic Unit Code 02050302
Latitude  40°27'47", Longitude  78°12'00" NAD27
Drainage area 291  square miles
Gage datum 831.78 feet above NGVD29
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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 1916-10-01 -> 2025-09-30)

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
1 465 386 777 916 575 352 226 159 170 181 209 420
2 520 413 751 946 533 369 226 147 193 184 222 414
3 484 461 706 950 562 354 222 197 138 209 234 356
4 472 482 804 935 545 369 225 187 127 167 225 362
5 478 453 971 970 591 383 234 162 140 154 246 355
6 468 433 985 887 576 366 209 160 187 151 212 365
7 441 473 901 834 631 345 210 192 247 143 218 388
8 433 457 815 773 621 304 195 203 177 140 338 387
9 423 411 791 782 629 315 187 179 279 176 297 368
10 437 441 817 782 610 298 186 164 322 186 256 371
11 405 447 881 693 598 280 189 156 220 161 222 429
12 397 478 942 719 711 333 183 158 166 147 261 406
13 413 521 927 780 649 347 210 168 176 142 302 413
14 374 599 950 760 628 337 188 154 152 143 251 427
15 383 604 967 786 558 293 184 145 139 166 242 399
16 376 562 864 819 549 295 194 138 138 197 268 397
17 380 550 907 846 529 285 189 139 180 180 318 372
18 391 524 987 687 574 302 188 159 354 191 273 390
19 474 522 877 630 546 319 180 139 228 216 301 377
20 483 589 880 660 501 298 235 134 168 222 330 366
21 429 615 889 659 527 370 185 169 146 205 287 386
22 495 642 914 679 542 378 178 174 144 199 318 406
23 456 666 849 617 518 448 204 141 161 243 309 412
24 462 689 947 577 465 328 163 148 144 223 269 440
25 533 779 896 568 447 273 167 139 178 202 311 462
26 499 820 807 678 440 245 162 130 200 223 332 412
27 499 706 810 687 395 279 155 138 169 202 337 395
28 473 746 818 671 412 287 169 121 222 227 481 409
29 432 656 916 611 467 280 164 129 225 232 433 419
30 441   909 589 408 227 156 127 206 275 388 485
31 442   970   388   156 135   217   455