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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
1 465 384 773 922 578 347 225 159 170 181 209 420
2 521 413 750 953 531 366 226 147 193 184 222 414
3 485 462 706 956 562 352 221 197 138 209 234 356
4 473 483 806 937 544 368 225 187 127 167 225 362
5 480 454 971 970 590 382 234 162 140 154 246 355
6 470 433 981 880 566 363 209 160 187 151 212 365
7 443 472 900 827 627 342 211 192 247 143 218 388
8 435 457 814 769 619 300 195 203 177 140 338 387
9 425 411 792 781 627 303 187 179 279 176 297 368
10 439 441 819 782 609 285 186 164 322 186 256 371
11 407 447 884 690 599 274 189 156 220 161 222 429
12 399 479 946 719 714 330 183 158 166 147 261 402
13 415 521 931 781 646 345 210 168 176 142 302 412
14 376 599 955 762 589 334 188 154 152 143 251 427
15 385 606 972 788 542 289 184 145 139 166 242 399
16 378 559 868 821 542 293 194 138 138 197 268 397
17 382 545 910 850 526 277 189 139 180 180 318 371
18 393 522 992 689 573 257 188 159 354 191 273 388
19 477 523 881 632 546 303 180 139 228 216 301 375
20 487 591 885 662 501 289 235 134 168 222 330 365
21 432 617 894 662 526 365 185 169 146 205 287 385
22 498 645 919 683 513 375 178 174 144 199 318 407
23 459 670 854 620 502 446 204 141 161 243 309 413
24 464 692 953 580 457 327 163 148 144 223 269 441
25 537 783 902 571 442 272 167 139 178 202 311 464
26 502 822 812 681 437 244 162 130 200 223 332 413
27 502 702 816 689 392 278 155 138 169 202 337 397
28 476 740 823 674 406 286 169 121 222 227 481 411
29 434 656 923 613 463 279 164 129 225 232 433 421
30 444   915 591 405 227 156 127 206 275 388 487
31 444   977   382   156 135   217   457