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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 -> 2021-09-30)

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
1 764 860 990 1,510 1,060 638 387 271 219 295 442 678
2 768 843 1,000 1,550 1,040 642 377 268 213 292 449 685
3 762 844 1,020 1,570 1,020 645 366 263 205 286 461 688
4 758 850 1,040 1,580 997 648 351 254 204 285 471 685
5 759 848 1,050 1,590 974 651 341 242 201 279 478 685
6 752 839 1,070 1,590 952 656 328 226 193 283 486 691
7 746 836 1,090 1,590 925 663 317 216 200 288 487 701
8 740 828 1,110 1,560 900 670 306 218 197 288 491 712
9 740 817 1,130 1,530 881 666 298 215 192 296 498 725
10 734 806 1,140 1,490 870 663 288 223 193 299 503 740
11 731 801 1,150 1,460 859 641 283 230 202 303 507 750
12 734 798 1,150 1,410 852 625 279 238 211 302 519 759
13 727 795 1,160 1,380 846 610 279 247 218 303 531 769
14 721 802 1,190 1,360 848 604 274 248 226 309 539 780
15 724 804 1,240 1,330 840 590 265 245 230 319 553 791
16 723 817 1,270 1,310 836 578 252 245 231 328 559 801
17 714 829 1,300 1,300 835 563 246 242 230 341 570 802
18 705 843 1,330 1,280 824 547 237 240 234 347 575 805
19 705 854 1,350 1,270 820 532 235 238 242 351 573 799
20 700 857 1,370 1,250 809 512 228 242 254 360 574 791
21 702 865 1,390 1,220 794 495 233 248 262 381 576 784
22 705 867 1,420 1,200 776 479 238 264 270 389 576 782
23 710 875 1,450 1,180 755 464 246 265 279 400 585 772
24 730 893 1,470 1,170 733 449 272 256 280 404 593 770
25 772 924 1,480 1,160 719 435 286 247 280 408 603 772
26 819 954 1,470 1,140 709 428 297 237 278 411 618 781
27 856 974 1,470 1,130 696 417 299 227 283 413 636 785
28 886 987 1,460 1,110 683 412 295 222 290 421 644 780
29 890 1,040 1,460 1,100 669 403 294 221 295 424 663 775
30 888   1,460 1,080 650 395 285 220 297 432 667 774
31 879   1,490   640   280 225   433   766