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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 01642190 MONOCACY RIVER AT MONOCACY BLVD AT FREDERICK, MD


Frederick County, Maryland
Hydrologic Unit Code 02070009
Latitude  39°26'36.9", Longitude  77°22'56.2" NAD83
Drainage area 703  square miles
Gage datum 240.00 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 2003-10-01 -> 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 1,180 939 1,570 1,230 2,280 593 359 305 475 874 1,010 916
2 1,190 1,070 1,820 1,630 1,050 1,050 324 430 1,400 646 618 1,120
3 1,170 1,160 1,570 2,170 1,120 699 286 482 356 662 901 968
4 995 1,790 1,430 1,570 1,210 824 275 776 221 510 504 760
5 891 1,660 1,590 1,080 1,660 794 307 478 219 471 579 642
6 958 1,400 1,480 1,010 1,830 979 367 317 250 363 808 610
7 929 1,800 1,720 1,190 2,140 620 358 284 483 324 677 1,060
8 1,030 1,380 1,250 1,160 1,500 510 912 373 838 412 581 1,100
9 955 1,010 1,220 932 1,070 508 527 595 1,280 394 609 970
10 1,710 930 1,860 809 935 524 343 508 1,610 305 584 1,360
11 1,080 970 2,190 770 885 914 276 265 830 517 430 1,860
12 1,280 1,010 1,660 939 1,520 885 278 248 447 786 521 2,170
13 1,360 1,110 1,730 1,420 1,420 737 325 361 392 384 825 1,020
14 1,470 1,240 1,820 1,260 1,440 701 299 295 347 449 643 870
15 1,160 1,110 1,310 1,470 1,100 730 341 227 375 592 485 1,010
16 1,040 1,190 1,100 1,640 1,730 492 285 210 343 477 714 1,890
17 867 1,470 1,020 2,060 1,890 437 387 198 339 373 1,170 1,590
18 945 1,080 901 1,110 1,030 707 289 197 757 502 729 1,500
19 871 968 1,010 910 1,350 585 265 244 807 486 609 1,020
20 1,010 922 1,230 1,500 1,110 516 266 225 313 530 864 1,010
21 832 993 1,080 1,680 849 574 262 296 251 358 577 1,160
22 626 1,240 1,500 1,070 849 423 918 560 462 315 687 1,060
23 813 1,330 1,160 1,050 888 403 864 290 937 305 1,470 1,670
24 1,290 1,420 1,550 991 777 427 698 240 1,170 341 1,100 1,590
25 1,680 1,970 1,220 841 672 407 637 192 649 441 1,280 1,790
26 1,640 1,490 1,040 930 698 574 617 173 543 484 735 1,640
27 1,010 1,440 928 1,260 632 618 349 168 701 467 819 1,850
28 1,020 1,290 1,120 1,080 743 1,510 357 187 1,550 1,030 717 1,470
29 884 1,060 1,580 1,270 885 588 448 311 1,640 1,300 775 1,390
30 730   1,330 1,560 707 408 319 203 821 2,030 1,080 1,270
31 1,270   1,410   684   338 183   1,320   1,050