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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 01099500 CONCORD R BELOW R MEADOW BROOK, AT LOWELL, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01070005
Latitude  42°38'12", Longitude  71°18'09" NAD27
Drainage area 400  square miles
Contributing drainage area 307  square miles
Gage datum 66.60 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 1936-10-01 -> 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
1 770 869 991 1,500 1,060 635 386 287 235 307 451 675
2 773 851 1,000 1,530 1,040 640 378 282 236 304 458 682
3 767 851 1,020 1,550 1,020 644 372 275 230 299 470 685
4 762 858 1,040 1,560 999 645 362 264 231 298 480 682
5 763 856 1,060 1,570 979 647 355 252 230 283 486 682
6 756 847 1,070 1,570 957 650 345 236 222 289 492 687
7 751 845 1,090 1,560 930 655 334 225 228 296 492 697
8 744 838 1,110 1,540 904 661 323 231 223 297 496 708
9 744 828 1,130 1,500 883 656 316 230 217 304 502 721
10 738 817 1,140 1,470 871 654 310 239 217 306 506 736
11 734 812 1,150 1,430 857 633 307 247 226 309 509 745
12 736 809 1,150 1,390 849 617 307 253 237 307 522 756
13 729 807 1,160 1,360 842 602 310 261 243 307 535 765
14 723 813 1,200 1,330 842 595 306 260 249 314 544 775
15 725 813 1,240 1,300 831 581 297 256 250 323 559 785
16 725 824 1,280 1,290 827 570 284 255 250 333 566 796
17 718 836 1,310 1,280 824 555 278 251 247 345 577 800
18 711 851 1,340 1,270 812 540 270 252 250 351 581 805
19 711 862 1,360 1,250 807 526 268 254 262 355 579 800
20 707 865 1,380 1,230 795 506 261 260 273 364 579 794
21 709 872 1,400 1,210 782 489 266 267 281 384 580 787
22 712 873 1,430 1,190 766 473 272 284 289 390 579 784
23 718 882 1,450 1,170 745 458 276 286 296 400 586 779
24 739 899 1,460 1,160 722 443 299 278 296 404 594 779
25 780 930 1,470 1,150 709 429 311 270 294 407 603 782
26 829 958 1,470 1,130 698 423 319 261 292 413 617 792
27 866 977 1,470 1,120 685 413 318 251 296 417 635 795
28 896 988 1,460 1,100 673 409 313 246 301 426 642 790
29 900 1,040 1,450 1,090 660 402 312 243 306 430 660 784
30 898   1,460 1,080 644 394 305 241 308 438 664 781
31 888   1,480   636   296 243   442   773