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USGS Daily Statistics for Connecticut

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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


Windham County, Connecticut
Hydrologic Unit Code 01100002
Latitude  41°43'12.36", Longitude  72°11'44.07" NAD83
Drainage area 174  square miles
Gage datum 149.30 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
1 362 410 485 661 455 303 154 108 104 162 220 361
2 380 395 461 709 425 306 156 99 97 149 212 358
3 366 382 447 718 404 320 160 91 92 141 217 355
4 376 386 456 690 437 318 160 88 98 133 226 332
5 355 392 497 684 414 306 155 80 101 118 206 331
6 355 383 533 722 385 278 150 74 99 121 220 336
7 392 399 527 748 374 254 137 80 106 129 231 365
8 411 453 530 697 375 267 121 92 113 123 246 380
9 391 390 580 660 375 299 122 95 117 121 239 362
10 408 353 578 620 388 311 113 99 116 131 248 350
11 390 333 550 571 391 302 128 113 103 133 268 364
12 353 341 648 551 385 291 136 107 92 140 250 370
13 327 343 638 592 389 276 137 111 114 139 263 370
14 348 349 616 581 378 263 137 117 141 127 293 395
15 399 393 641 579 361 285 147 112 151 119 292 395
16 419 431 654 569 346 270 137 110 138 123 273 396
17 388 419 673 578 346 245 129 119 124 162 266 402
18 360 412 657 590 363 265 115 122 135 213 260 400
19 357 404 642 586 354 260 111 111 155 223 245 385
20 354 393 617 544 340 257 115 111 183 220 246 387
21 355 383 653 526 335 213 124 110 328 233 268 399
22 347 384 646 502 317 188 151 91 210 207 281 378
23 377 394 693 476 299 180 156 99 144 182 279 360
24 391 390 701 468 287 177 198 115 121 188 274 353
25 431 418 660 506 297 188 154 108 116 191 283 355
26 482 436 619 520 304 173 130 110 128 197 310 367
27 489 470 610 500 297 169 114 110 149 191 314 400
28 479 475 622 483 308 170 104 121 157 200 310 401
29 475 387 624 483 293 162 109 119 152 197 387 406
30 460   598 465 284 156 107 123 161 218 368 399
31 434   607   280   107 113   225   389