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USGS Daily Statistics for Maryland

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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 01643000 MONOCACY RIVER AT JUG BRIDGE NEAR FREDERICK, MD


Frederick County, Maryland
Hydrologic Unit Code 02070009
Latitude  39°24'10.2", Longitude  77°21'57.9" NAD83
Drainage area 817  square miles
Gage datum 231.21 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 1929-10-01 -> 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 1,180 1,020 1,650 1,770 1,380 795 450 403 604 641 683 983
2 1,450 1,110 1,570 1,930 1,040 962 429 351 620 612 701 1,130
3 1,340 1,330 1,450 1,940 1,050 855 469 381 365 654 735 914
4 1,410 1,580 1,720 1,650 1,290 851 477 533 423 427 604 896
5 1,170 1,420 2,050 1,760 1,240 821 454 393 335 380 588 1,080
6 1,140 1,250 1,970 1,720 1,410 816 428 309 579 390 607 1,130
7 1,050 1,460 1,940 1,590 1,490 652 488 322 673 323 606 1,090
8 1,120 1,460 1,820 1,450 1,260 690 544 326 504 332 664 1,040
9 1,260 1,100 1,710 1,530 1,130 603 510 427 553 613 824 976
10 1,390 1,120 1,650 1,640 1,030 585 489 450 600 841 674 1,030
11 1,080 1,160 1,760 1,420 1,030 661 450 544 484 532 627 1,370
12 1,050 1,230 1,810 1,260 1,170 674 382 389 320 485 589 1,420
13 1,040 1,330 1,830 1,500 1,220 775 678 650 335 377 833 1,120
14 1,040 1,520 1,970 1,580 1,060 839 423 649 394 430 735 1,320
15 1,140 1,590 2,050 1,620 946 664 447 374 631 492 720 1,100
16 1,150 1,410 1,690 1,690 1,310 520 492 287 459 489 641 1,230
17 975 1,380 1,560 1,820 1,430 534 415 291 805 505 725 1,300
18 958 1,360 1,560 1,380 1,030 616 448 377 572 621 700 1,140
19 1,060 1,440 1,620 1,150 1,190 780 506 395 587 688 634 1,000
20 1,480 1,570 1,880 1,480 994 834 439 325 361 656 754 930
21 1,300 1,550 2,010 1,480 1,050 733 501 343 379 512 667 1,140
22 1,190 1,600 2,400 1,350 1,140 1,180 585 374 542 420 810 1,120
23 1,060 1,650 2,060 1,200 979 1,440 571 404 749 566 1,000 1,140
24 1,310 1,970 2,060 1,080 863 897 516 741 784 604 766 1,070
25 1,730 1,920 1,710 1,150 849 550 495 491 657 467 845 1,220
26 1,660 1,850 1,520 1,320 896 525 423 341 1,030 566 787 1,150
27 1,550 1,710 1,640 1,670 803 543 363 357 851 580 782 1,450
28 1,510 1,620 1,690 1,450 872 750 379 282 715 684 919 1,100
29 1,170 1,650 1,860 1,270 913 535 367 299 656 703 1,330 1,110
30 1,130   1,670 1,210 883 482 373 236 647 870 1,230 1,240
31 1,220   1,730   828   404 327   708   1,220