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USGS Daily Statistics for the Nation

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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 01122000 NATCHAUG RIVER AT WILLIMANTIC, CT


Southeastern Connecticut Planning Region County, Connecticut
Hydrologic Unit Code 011000020206
Latitude  41°43'12.36", Longitude  72°11'44.07" NAD83
Drainage area 174.0  square miles
Gage datum 149.3 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
1 363 406 483 656 452 305 153 108 104 162 218 358
2 382 392 460 704 423 308 156 99 97 149 210 355
3 367 379 445 714 402 320 161 91 92 141 215 352
4 375 383 454 689 434 317 160 88 98 133 224 329
5 353 389 494 683 414 305 156 80 101 118 204 328
6 353 380 533 720 389 277 150 74 99 121 218 333
7 389 396 533 745 382 254 137 80 106 129 228 361
8 408 449 533 694 389 267 121 92 113 123 244 377
9 389 387 582 657 385 299 123 95 117 121 237 359
10 405 350 577 616 392 313 117 99 116 131 245 347
11 387 331 547 569 395 303 133 113 103 133 265 363
12 351 338 644 549 389 291 142 107 92 140 248 374
13 325 340 634 589 393 276 141 111 114 139 260 376
14 346 346 612 579 382 262 139 117 141 127 290 396
15 396 390 637 577 364 284 148 112 151 119 289 394
16 416 428 650 568 348 270 137 110 138 123 270 395
17 385 417 672 577 349 244 129 119 124 161 263 401
18 357 410 660 587 366 264 116 122 135 211 257 399
19 354 402 641 583 356 259 111 111 155 220 243 385
20 351 391 614 542 341 257 115 111 183 217 244 387
21 352 381 650 522 336 213 124 110 328 231 266 398
22 344 382 642 499 319 189 150 91 210 205 278 377
23 373 392 689 473 307 180 155 99 144 180 277 358
24 388 387 696 465 298 177 196 115 121 186 272 352
25 427 415 658 503 307 187 153 108 116 189 281 353
26 477 433 618 517 313 172 129 110 128 195 308 364
27 484 468 607 498 300 168 113 110 149 189 311 397
28 474 474 619 482 307 169 104 121 157 198 308 397
29 471 387 621 483 293 161 108 119 152 196 384 402
30 456   595 464 285 155 106 123 161 216 365 396
31 431   603   281   106 113   223   389