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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
1 335 246 254 1,090 1,680 643 381 200 196 304 416 469
2 346 235 261 1,080 1,720 645 394 194 189 328 449 447
3 333 236 264 1,020 1,660 667 351 204 177 299 480 421
4 283 251 258 995 1,640 617 324 244 172 298 490 402
5 278 247 260 1,040 1,560 525 328 260 167 290 460 383
6 278 227 333 1,110 1,410 509 303 235 174 284 480 395
7 275 214 349 1,150 1,330 503 278 198 172 325 475 424
8 256 208 305 1,100 1,260 469 266 221 175 334 480 411
9 256 204 309 1,070 1,260 461 267 214 172 291 505 366
10 283 203 339 1,100 1,290 453 284 217 177 279 469 373
11 275 214 356 1,130 1,230 449 318 258 196 269 447 414
12 310 234 361 1,200 1,220 482 299 232 247 261 465 390
13 319 224 380 1,260 1,230 504 259 207 223 263 463 382
14 295 206 398 1,420 1,150 499 263 237 227 297 422 397
15 272 202 404 1,550 1,090 498 273 216 221 322 444 378
16 266 214 425 1,670 1,070 492 261 201 197 341 442 366
17 268 210 453 1,660 1,000 489 248 213 219 340 432 338
18 248 208 520 1,670 983 449 228 213 228 340 413 339
19 261 201 503 1,620 951 394 239 183 214 316 384 333
20 266 194 488 1,670 1,000 374 244 190 222 309 412 303
21 273 200 506 1,740 942 370 219 177 198 388 447 324
22 255 236 525 1,800 845 380 226 166 195 421 432 419
23 260 275 545 1,880 749 368 222 162 215 370 406 418
24 303 277 545 1,890 689 344 226 168 201 403 402 397
25 331 287 541 1,740 681 339 204 170 195 459 403 387
26 360 301 590 1,680 694 355 197 164 210 395 420 373
27 310 292 717 1,730 728 350 200 153 212 390 499 395
28 278 276 800 1,700 708 362 211 179 222 417 500 399
29 260 293 914 1,670 643 377 221 219 210 390 497 364
30 233   1,000 1,650 660 383 229 206 238 405 481 360
31 233   1,060   654   207 197   409   358