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USGS Daily Statistics for Pennsylvania

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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 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 889.38 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 1939-10-01 -> 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
1 637 704 879 824 611 519 402 205 174 184 270 528
2 660 691 899 871 600 499 376 202 163 186 280 511
3 704 707 991 941 596 445 337 204 156 204 273 457
4 731 758 926 984 596 488 323 201 169 216 283 441
5 777 836 829 1,010 616 581 298 239 176 239 287 436
6 844 899 861 1,030 599 449 278 243 181 247 282 479
7 774 854 1,050 1,020 638 384 282 242 178 249 290 512
8 687 869 1,170 1,010 605 348 249 229 178 238 285 512
9 630 829 1,230 1,010 636 362 212 216 185 204 258 551
10 533 729 1,250 1,010 680 356 221 217 192 185 261 576
11 485 701 1,220 974 663 343 250 207 221 181 280 596
12 503 717 1,170 952 653 391 269 189 218 187 281 598
13 518 736 1,160 876 687 352 268 190 210 197 292 594
14 534 709 1,100 817 712 344 277 195 213 202 281 615
15 560 636 1,050 736 729 412 273 192 231 207 270 595
16 594 667 1,050 705 736 446 251 202 232 204 270 560
17 645 795 1,050 816 721 459 236 187 211 196 276 543
18 646 867 985 920 706 474 228 181 245 239 311 519
19 570 854 950 927 694 462 216 180 257 236 358 531
20 555 866 936 939 703 429 194 178 245 224 377 562
21 569 864 869 814 638 381 175 156 239 255 368 560
22 553 869 906 699 608 362 177 145 226 249 367 527
23 534 868 957 623 598 367 208 145 209 226 348 549
24 586 853 963 632 547 386 232 151 193 227 350 619
25 632 846 944 669 520 403 227 154 176 223 365 674
26 599 827 976 699 497 383 208 151 190 190 408 708
27 604 857 948 695 500 359 185 150 208 182 418 700
28 652 907 924 685 465 386 165 148 227 206 405 699
29 664 775 869 718 502 404 159 187 207 225 430 687
30 703   845 668 539 401 165 204 192 229 485 646
31 703   889   557   197 193   236   650