Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

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 01130000 UPPER AMMONOOSUC RIVER NEAR GROVETON, NH


Coos County, New Hampshire
Hydrologic Unit Code 01080101
Latitude  44°37'30", Longitude  71°28'10" NAD27
Drainage area 232  square miles
Gage datum 916.43 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1939-10-01 -> 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
1 346 245 260 1,090 1,670 638 387 205 197 302 413 466
2 353 235 262 1,080 1,710 639 395 198 190 326 446 444
3 338 236 266 1,020 1,670 661 352 206 177 296 476 418
4 288 250 262 1,000 1,640 611 324 245 172 295 486 399
5 281 246 269 1,040 1,560 520 328 261 167 288 456 380
6 280 227 354 1,110 1,420 505 302 239 174 282 475 392
7 277 214 397 1,150 1,330 499 281 200 171 323 470 420
8 259 208 352 1,100 1,260 467 268 222 175 332 476 408
9 258 204 333 1,060 1,270 460 267 225 172 290 500 364
10 285 203 354 1,100 1,290 452 286 233 176 277 464 370
11 279 216 367 1,130 1,220 448 362 265 196 268 443 416
12 313 236 371 1,200 1,220 479 334 236 245 260 461 435
13 320 225 387 1,290 1,220 501 274 210 222 261 459 411
14 296 206 404 1,430 1,140 495 271 239 225 295 419 409
15 274 202 416 1,550 1,080 494 277 217 219 323 440 385
16 267 214 443 1,660 1,080 488 266 203 196 341 438 371
17 269 210 498 1,650 1,000 485 257 214 218 340 428 345
18 250 208 570 1,650 979 445 239 213 226 339 410 362
19 262 202 530 1,610 947 391 244 184 213 315 381 389
20 266 194 507 1,680 998 371 247 194 220 307 408 333
21 273 200 528 1,740 936 367 221 182 197 385 443 337
22 256 235 540 1,780 840 378 227 170 193 418 429 422
23 260 274 551 1,870 745 369 226 165 214 368 405 420
24 302 276 548 1,880 686 357 232 171 200 400 402 400
25 329 285 544 1,730 676 344 208 172 194 455 401 389
26 360 299 589 1,670 688 357 201 166 211 391 418 374
27 311 291 714 1,710 721 352 202 154 216 387 496 398
28 279 276 798 1,690 705 363 213 181 223 414 497 405
29 260 310 912 1,660 639 377 222 219 210 387 494 372
30 234   993 1,640 655 397 232 207 237 402 478 374
31 234   1,050   649   211 198   406   372