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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 159.88 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 1908-10-01 -> 2022-09-30)

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
1 282 261 393 934 545 260 168 108 92 126 192 312
2 282 248 397 1,030 509 269 163 105 89 102 185 303
3 279 250 386 1,050 482 256 164 96 86 96 196 293
4 285 276 377 1,020 477 260 145 89 83 86 271 285
5 266 282 374 974 469 240 131 128 71 94 257 303
6 260 269 397 969 458 233 128 110 64 88 215 338
7 279 261 437 979 402 237 120 98 82 99 201 370
8 279 278 460 943 384 237 107 93 91 99 223 352
9 278 268 519 820 382 231 132 100 89 97 229 344
10 322 233 529 767 383 262 133 99 89 92 242 355
11 302 240 449 754 367 262 113 95 81 85 264 368
12 297 256 469 760 376 234 105 96 111 93 223 367
13 307 248 552 828 389 232 109 95 114 93 226 355
14 287 264 577 775 410 227 100 96 93 89 285 330
15 284 280 644 736 428 231 96 89 102 115 265 397
16 282 285 657 761 431 227 86 79 85 187 230 330
17 272 278 641 823 424 209 86 75 90 152 232 289
18 245 269 681 757 413 228 86 75 105 149 236 290
19 263 279 800 711 383 204 98 73 117 146 230 308
20 259 259 697 649 368 204 100 78 108 154 246 282
21 242 263 699 623 349 189 93 70 155 148 252 291
22 261 293 718 598 358 205 97 65 171 128 232 312
23 291 314 687 614 355 191 102 73 104 122 242 288
24 305 305 681 621 339 189 112 81 88 138 236 296
25 324 349 706 588 321 239 114 77 85 180 260 305
26 360 408 760 555 323 223 95 71 90 191 290 313
27 344 401 809 577 326 177 87 77 112 168 303 323
28 349 389 887 556 306 165 105 69 102 163 278 322
29 309 341 846 589 297 176 113 88 93 177 312 302
30 274   879 569 270 178 132 84 100 196 309 290
31 263   908   238   119 80   212   288