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USGS Daily Statistics for the Nation

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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 01078000 SMITH RIVER NEAR BRISTOL, NH


Merrimack County, New Hampshire
Hydrologic Unit Code 01070001
Latitude  43°33'59", Longitude  71°44'54" NAD27
Drainage area 85.8  square miles
Gage datum 449.42 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 1917-10-01 -> 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
1 118 89 112 473 345 163 103 53 33 60 109 168
2 118 82 116 470 325 163 89 54 33 62 113 169
3 115 92 122 471 319 151 77 50 35 54 130 156
4 107 101 124 475 311 142 71 42 33 53 159 142
5 104 104 122 487 286 125 72 41 31 51 139 137
6 106 96 131 520 262 120 68 43 32 57 130 155
7 106 88 153 522 243 124 61 43 35 64 125 181
8 101 90 163 509 227 119 56 53 31 66 122 171
9 107 86 176 475 220 110 55 45 32 78 134 157
10 121 81 181 468 220 112 58 46 35 72 138 153
11 116 87 186 478 219 109 65 64 39 62 135 161
12 121 102 197 517 226 104 65 60 42 61 129 173
13 129 98 215 520 230 103 69 53 42 61 134 160
14 122 96 230 504 255 104 69 53 39 62 142 159
15 116 92 243 492 252 115 66 46 36 77 134 156
16 108 94 244 501 236 110 58 43 37 87 129 142
17 100 93 261 526 222 100 54 39 52 89 132 128
18 93 91 281 526 214 100 50 34 47 85 128 144
19 104 90 320 511 208 94 45 34 40 79 116 148
20 108 90 298 494 202 85 45 32 41 85 128 129
21 105 100 305 472 193 81 44 29 65 119 135 131
22 99 112 301 454 187 82 54 33 75 115 130 143
23 96 120 288 458 181 86 67 34 53 93 128 147
24 99 126 285 449 183 87 70 33 50 103 122 152
25 113 142 297 428 192 91 58 31 44 129 134 161
26 125 144 311 403 184 85 46 32 43 134 150 158
27 139 134 356 380 169 87 45 28 46 120 164 147
28 131 124 412 359 156 88 46 36 48 122 162 136
29 115 132 434 365 147 95 53 50 44 121 169 127
30 101   437 347 152 107 65 45 52 126 171 124
31 93   443   155   62 36   121   123