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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 01094000 SOUHEGAN RIVER AT MERRIMACK, NH


Hillsborough County, New Hampshire
Hydrologic Unit Code 01070002
Latitude  42°51'27", Longitude  71°30'24" NAD27
Drainage area 171  square miles
Gage datum 160.58 feet above NGVD29
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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 1908-10-01 -> 2019-09-30)

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
1 275 262 393 943 531 260 172 103 92 129 191 302
2 274 248 399 1,050 491 272 166 102 79 103 181 293
3 272 250 388 1,070 471 258 164 95 73 97 181 279
4 280 277 378 1,030 470 263 144 88 76 87 253 274
5 261 283 375 986 461 242 129 128 66 90 249 296
6 255 268 400 985 448 234 128 110 60 83 206 329
7 276 260 443 998 395 237 121 98 81 97 188 365
8 278 275 468 962 379 239 107 94 90 98 215 351
9 277 264 528 834 379 234 132 101 89 96 224 344
10 322 230 538 775 382 267 129 100 85 92 233 351
11 302 238 455 764 366 267 110 95 78 85 255 358
12 293 256 473 773 376 238 99 97 110 93 217 361
13 300 248 557 843 391 235 97 96 113 94 219 352
14 283 263 583 778 413 230 91 97 90 89 273 318
15 282 282 653 739 431 234 89 90 101 117 259 371
16 278 287 662 764 434 231 81 80 84 190 225 313
17 258 279 647 829 428 211 83 76 89 153 227 277
18 237 269 692 763 417 231 80 76 105 148 232 280
19 259 279 815 717 387 207 82 74 117 146 228 303
20 257 260 707 654 371 207 88 73 109 155 244 278
21 241 265 709 625 353 192 85 66 157 150 250 286
22 261 295 729 599 363 209 91 62 174 129 231 298
23 292 317 697 613 361 194 96 69 105 122 242 277
24 305 308 691 622 344 192 104 65 88 138 235 289
25 307 351 716 591 326 245 109 61 84 182 253 292
26 344 411 773 559 329 227 91 62 89 193 285 281
27 334 399 822 567 332 180 85 72 113 170 290 305
28 343 378 903 542 312 169 104 65 103 159 263 311
29 305 311 858 585 301 179 112 86 93 173 305 293
30 272   882 557 272 182 123 82 101 194 305 281
31 263   913   237   109 79   211   281