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USGS Daily Statistics for New Hampshire

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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 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
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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 1939-10-01 -> 2024-09-30)

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
1 340 246 260 1,090 1,680 643 381 200 196 304 416 469
2 349 236 263 1,080 1,720 645 394 194 189 328 449 447
3 336 236 267 1,020 1,660 667 351 204 177 299 480 421
4 286 251 263 995 1,640 617 324 244 172 298 490 402
5 280 247 269 1,040 1,560 525 328 260 167 290 460 383
6 279 228 347 1,110 1,410 509 303 235 174 284 480 395
7 276 215 382 1,150 1,330 503 278 198 172 325 475 424
8 258 209 344 1,100 1,260 469 266 221 175 334 480 411
9 257 204 327 1,070 1,260 461 267 214 172 291 505 366
10 284 203 351 1,100 1,290 453 284 217 177 279 469 373
11 278 217 365 1,130 1,230 449 318 258 196 269 447 414
12 312 237 367 1,200 1,220 482 299 232 247 261 465 405
13 320 226 385 1,260 1,230 504 259 207 223 263 463 391
14 296 207 403 1,420 1,150 499 263 237 227 297 422 401
15 273 203 413 1,550 1,090 498 273 216 221 322 444 382
16 267 215 434 1,670 1,070 492 261 201 197 341 442 369
17 269 210 463 1,660 1,000 489 248 213 219 340 432 341
18 250 209 530 1,670 983 449 228 213 228 340 413 355
19 262 202 509 1,620 951 394 239 183 214 316 384 385
20 267 195 491 1,670 1,000 374 244 190 222 309 412 331
21 274 201 508 1,740 942 370 219 177 198 388 447 336
22 256 236 525 1,800 845 380 226 166 195 421 432 424
23 261 275 542 1,880 749 368 222 162 215 370 406 421
24 303 277 543 1,890 689 344 226 168 201 403 402 401
25 331 286 541 1,740 681 339 204 170 195 459 403 390
26 362 300 588 1,680 694 355 197 164 210 395 420 375
27 312 292 716 1,730 728 350 200 153 212 390 499 399
28 280 276 800 1,700 708 362 211 179 222 417 500 406
29 261 310 914 1,670 643 377 221 219 210 390 497 373
30 234   1,000 1,650 660 383 229 206 238 405 481 372
31 234   1,060   654   207 197   409   366