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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 03047000 Loyalhanna Creek at Loyalhanna Dam, PA


Westmoreland County, Pennsylvania
Hydrologic Unit Code 05010008
Latitude  40°27'32", Longitude  79°26'58" NAD83
Drainage area 290  square miles
Gage datum 870.18 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 1939-10-01 -> 2024-09-30)

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
1 653 675 915 839 615 528 387 200 184 176 280 515
2 681 663 939 879 602 507 367 196 184 177 278 501
3 725 681 1,010 933 606 458 333 200 181 198 271 459
4 760 734 943 953 612 491 331 197 188 212 282 449
5 813 822 859 964 636 567 311 229 188 233 283 438
6 876 895 881 987 631 439 293 232 189 240 278 475
7 804 856 1,030 975 670 376 289 233 182 241 284 509
8 715 874 1,130 971 648 340 256 224 177 231 277 507
9 651 853 1,170 976 683 352 223 212 182 198 252 538
10 554 777 1,190 982 724 349 230 210 188 179 257 560
11 502 739 1,170 951 706 337 253 200 214 175 274 584
12 513 749 1,120 930 697 379 278 184 213 180 278 592
13 533 761 1,120 853 722 341 288 184 206 189 295 588
14 553 761 1,050 799 726 333 297 195 209 192 289 606
15 573 722 1,000 727 726 397 289 191 223 197 279 587
16 593 746 1,010 699 729 427 261 199 222 195 277 560
17 631 843 1,010 799 710 439 238 183 202 188 279 550
18 630 895 945 899 692 454 225 177 232 228 309 532
19 567 875 914 914 676 447 214 183 244 226 352 540
20 563 869 906 936 678 419 195 179 232 215 369 567
21 585 858 842 818 617 375 181 153 227 244 358 563
22 568 865 885 702 588 363 182 141 215 238 355 531
23 541 863 942 621 574 373 212 143 202 218 336 559
24 586 857 953 624 523 392 237 152 186 220 339 629
25 635 857 934 657 501 405 232 156 169 217 357 680
26 615 848 971 679 482 386 211 155 182 188 399 719
27 624 887 951 680 486 356 185 153 199 180 406 711
28 667 933 928 681 457 374 166 152 216 204 397 704
29 670 822 878 713 499 390 163 189 197 223 424 694
30 692   857 668 539 387 168 204 184 227 478 655
31 679   895   560   194 198   243   662