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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 01104500 CHARLES RIVER AT WALTHAM, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°22'20", Longitude  71°14'03" NAD27
Drainage area 251  square miles
Contributing drainage area 227  square miles
Gage datum 19.21 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 1930-10-01 -> 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
1 376 419 475 709 478 298 168 146 115 149 220 327
2 377 414 484 721 461 297 171 135 121 147 223 327
3 372 418 501 716 452 295 169 123 117 144 232 328
4 376 421 503 726 444 293 163 117 109 145 230 325
5 378 408 514 725 433 297 169 107 105 141 232 332
6 371 399 523 721 420 307 156 106 105 148 233 335
7 373 401 540 716 406 316 155 108 104 151 234 340
8 374 405 555 697 391 315 144 114 99 146 238 345
9 375 393 564 677 386 302 144 118 103 150 250 352
10 382 385 567 662 390 291 144 121 98 148 253 357
11 381 383 570 649 388 282 142 121 102 145 257 362
12 378 383 585 639 381 276 142 126 109 141 262 376
13 384 385 589 632 372 276 141 130 108 142 266 377
14 391 393 613 619 371 281 139 128 106 150 268 375
15 389 397 648 603 368 270 129 127 107 161 271 386
16 389 403 654 600 369 260 126 125 110 162 275 384
17 384 406 661 600 367 254 126 120 114 165 284 390
18 379 415 674 585 357 252 127 123 128 169 282 398
19 374 422 675 580 350 241 124 134 135 175 274 398
20 371 419 676 573 344 229 121 136 135 187 271 393
21 373 419 675 563 340 223 120 133 141 206 273 393
22 373 426 700 547 333 215 128 132 146 201 278 388
23 375 431 708 539 319 211 135 132 145 201 282 389
24 388 435 705 529 311 204 149 131 146 200 281 386
25 416 455 694 520 307 195 152 132 147 203 289 378
26 442 467 683 509 309 188 147 125 148 207 301 384
27 447 465 683 500 304 183 145 120 148 207 305 396
28 454 466 682 497 295 177 147 123 147 213 303 389
29 444 464 684 491 293 175 149 119 152 215 309 384
30 436   692 485 288 171 151 118 151 218 318 388
31 428   695   291   143 115   219   384