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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 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 89 112 472 347 158 103 53 33 60 109 168
2 118 82 116 470 327 158 89 55 33 62 113 169
3 115 92 122 472 321 149 77 50 35 54 130 156
4 107 101 124 475 312 141 71 43 34 53 159 142
5 104 104 122 487 286 125 73 42 31 51 139 137
6 106 96 131 521 261 119 69 43 33 57 130 155
7 106 88 153 523 241 120 61 43 35 64 125 181
8 101 90 163 510 225 114 56 53 32 66 122 171
9 107 86 176 477 217 107 55 45 32 78 134 157
10 121 81 181 470 211 110 58 46 35 72 138 153
11 116 87 186 481 211 108 66 65 39 62 135 161
12 121 102 197 520 221 103 65 60 43 61 129 173
13 129 98 215 523 228 103 69 53 43 61 134 160
14 122 96 230 506 255 104 70 54 39 62 142 159
15 116 92 243 494 252 115 66 46 36 77 134 156
16 108 94 244 504 236 110 58 44 38 87 129 142
17 100 93 261 529 222 100 54 39 53 89 132 128
18 93 91 281 529 212 100 50 34 47 85 128 144
19 104 90 320 515 205 93 45 34 41 79 116 148
20 108 90 298 497 201 85 45 32 42 85 128 129
21 105 100 305 475 192 81 44 29 66 119 135 131
22 99 112 301 458 186 82 55 33 75 115 130 143
23 96 120 288 461 177 86 67 35 53 93 128 147
24 99 126 285 452 178 87 71 33 50 103 122 152
25 113 142 297 431 189 91 59 31 44 129 134 161
26 125 144 311 405 183 85 46 32 43 134 150 158
27 139 134 358 381 168 88 46 28 46 120 164 147
28 131 124 415 360 155 88 46 36 48 122 162 136
29 115 132 436 367 147 96 53 51 44 121 169 127
30 101   439 349 152 108 65 45 52 126 171 124
31 93   444   154   62 37   121   123