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USGS Daily Statistics for Connecticut

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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 01125100 FRENCH RIVER AT NORTH GROSVENORDALE, CT


Windham County, Connecticut
Hydrologic Unit Code 01100001
Latitude  41°58'42.47", Longitude  71°54'01.85" NAD83
Drainage area 101  square miles
Gage datum 330.99 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 1999-10-01 -> 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
1 276 207 283 396 276 146 98 80 78 116 238 235
2 265 205 297 407 287 153 131 77 121 106 220 245
3 253 199 305 422 270 168 137 68 99 106 212 235
4 255 203 293 425 252 170 139 64 91 114 195 221
5 263 223 286 441 229 157 135 64 87 121 185 209
6 261 225 278 440 218 148 120 61 89 117 178 203
7 252 232 314 427 205 157 104 59 111 105 172 213
8 241 242 298 416 198 159 100 69 125 96 171 214
9 226 232 306 416 195 153 116 65 118 103 172 211
10 245 222 296 410 193 163 121 69 115 97 172 231
11 233 216 292 390 183 156 118 67 117 94 171 265
12 247 212 303 376 167 160 129 62 110 98 173 295
13 267 221 324 380 160 149 127 65 109 109 174 293
14 278 223 364 387 169 156 123 67 104 111 180 288
15 290 212 367 368 163 146 113 77 96 179 181 277
16 283 218 358 379 180 140 114 89 83 133 177 273
17 280 221 347 383 200 145 109 81 71 124 195 278
18 273 234 347 367 202 146 114 82 77 134 198 312
19 269 236 326 356 197 140 116 92 81 135 194 314
20 275 230 318 329 203 131 114 101 77 141 191 281
21 262 223 328 315 192 126 108 100 74 153 185 275
22 232 217 335 298 171 127 103 80 62 152 190 278
23 220 221 330 306 150 134 114 67 59 133 200 289
24 232 231 347 309 141 141 131 63 66 138 203 303
25 242 258 344 312 139 137 129 71 74 154 201 321
26 251 283 339 297 144 130 129 66 91 157 198 318
27 266 275 337 288 154 119 116 61 94 176 204 311
28 272 287 344 272 152 113 103 88 94 198 206 304
29 255 291 363 276 152 104 93 83 106 212 206 305
30 233   426 269 154 99 86 74 113 230 220 302
31 225   407   148   82 76   248   290