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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 231.09 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 1,170 1,020 1,640 1,770 1,380 795 450 403 604 641 678 976
2 1,440 1,100 1,560 1,930 1,040 962 429 351 620 612 695 1,120
3 1,330 1,320 1,440 1,940 1,050 855 469 381 365 654 729 906
4 1,400 1,570 1,700 1,650 1,290 851 477 533 423 427 599 888
5 1,160 1,400 2,040 1,760 1,240 821 454 393 335 380 584 1,070
6 1,130 1,240 1,970 1,720 1,410 816 428 309 579 390 602 1,120
7 1,050 1,460 1,940 1,590 1,490 652 488 322 673 323 601 1,080
8 1,120 1,450 1,820 1,450 1,260 690 544 326 504 332 658 1,030
9 1,250 1,100 1,710 1,530 1,130 603 510 427 553 613 817 968
10 1,380 1,110 1,650 1,640 1,030 585 489 450 600 841 668 1,020
11 1,070 1,150 1,760 1,420 1,030 661 450 544 484 532 622 1,360
12 1,040 1,220 1,810 1,260 1,170 674 382 389 320 482 584 1,430
13 1,030 1,320 1,830 1,500 1,220 775 678 650 335 375 826 1,120
14 1,030 1,520 1,970 1,580 1,060 839 423 649 394 428 729 1,310
15 1,130 1,580 2,050 1,620 946 664 447 374 631 488 714 1,090
16 1,140 1,410 1,690 1,690 1,310 520 492 287 459 485 636 1,220
17 967 1,410 1,560 1,820 1,430 534 415 291 805 501 719 1,300
18 950 1,360 1,560 1,380 1,030 616 448 377 572 616 694 1,140
19 1,050 1,430 1,620 1,150 1,190 780 506 395 587 682 629 997
20 1,460 1,560 1,880 1,480 994 834 439 325 361 651 748 927
21 1,290 1,540 2,010 1,480 1,050 733 501 343 379 508 662 1,130
22 1,180 1,590 2,400 1,350 1,140 1,180 585 374 542 418 804 1,110
23 1,050 1,640 2,060 1,200 979 1,440 571 404 749 562 994 1,130
24 1,300 1,950 2,060 1,080 863 897 516 741 784 599 760 1,060
25 1,710 1,900 1,710 1,150 849 550 495 491 657 464 838 1,210
26 1,650 1,840 1,520 1,320 896 525 423 341 1,030 562 781 1,150
27 1,540 1,700 1,640 1,670 803 543 363 357 851 575 776 1,440
28 1,500 1,600 1,690 1,450 872 750 379 282 715 679 912 1,100
29 1,160 1,650 1,860 1,270 913 535 367 299 656 697 1,320 1,100
30 1,120   1,670 1,210 883 482 373 236 647 862 1,220 1,230
31 1,210   1,730   828   404 327   702   1,210