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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 01137500 AMMONOOSUC RIVER AT BETHLEHEM JUNCTION, NH


Grafton County, New Hampshire
Hydrologic Unit Code 01080101
Latitude  44°16'07", Longitude  71°37'51" NAD27
Drainage area 87.6  square miles
Gage datum 1,180.48 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 1938-10-01 -> 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
1 147 97 99 419 686 304 174 101 99 159 222 235
2 146 97 113 383 686 311 172 108 94 159 220 229
3 140 120 108 403 706 300 137 136 83 130 278 208
4 120 121 114 395 664 248 137 125 81 133 216 184
5 123 109 132 417 613 230 141 139 74 117 222 193
6 134 98 158 392 579 237 134 134 83 146 226 185
7 121 90 174 395 553 222 118 108 88 153 233 227
8 118 99 137 389 544 219 113 102 86 146 247 188
9 139 91 146 365 617 210 119 98 83 150 259 192
10 136 86 166 376 577 213 119 126 83 137 211 187
11 145 119 168 402 542 222 126 132 125 132 225 216
12 160 126 151 411 596 210 122 112 110 120 263 214
13 150 105 147 406 547 199 116 102 102 127 226 220
14 146 94 165 524 517 211 127 126 97 148 202 194
15 123 84 173 543 502 219 130 97 100 170 224 174
16 117 86 160 562 533 205 121 106 94 206 222 159
17 114 95 183 600 558 201 107 112 130 200 229 170
18 114 91 206 573 489 175 103 96 98 164 196 262
19 147 94 179 552 495 173 123 94 109 160 180 169
20 141 103 195 605 494 156 118 93 104 172 215 147
21 120 132 192 646 433 151 115 88 88 239 213 242
22 119 147 200 640 404 152 121 89 104 225 200 207
23 123 142 200 719 361 151 117 83 115 170 187 197
24 154 131 199 692 352 155 122 83 115 247 176 193
25 171 165 214 641 349 174 107 81 116 215 214 225
26 163 145 241 648 348 189 99 74 101 221 265 178
27 188 114 325 671 334 178 93 68 109 214 243 193
28 140 113 317 644 313 169 95 107 126 244 236 176
29 108 136 329 675 300 166 109 102 114 210 242 159
30 99   344 624 309 220 116 89 145 255 243 161
31 115   392   296   101 101   204   156