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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 01119500 WILLIMANTIC RIVER NEAR COVENTRY, CT


Tolland County, Connecticut
Hydrologic Unit Code 01100002
Latitude  41°45'02", Longitude  72°15'58" NAD27
Drainage area 121  square miles
Gage datum 238.04 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 1931-10-01 -> 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
1 252 235 290 515 312 267 139 83 67 117 152 235
2 265 257 284 491 298 261 126 75 98 113 149 243
3 268 313 326 507 292 246 122 75 76 107 170 234
4 269 307 332 485 308 226 118 71 75 103 165 220
5 267 273 333 487 285 232 117 75 71 99 163 237
6 249 245 381 479 278 264 107 75 70 97 160 251
7 259 248 424 455 275 240 109 79 104 103 158 267
8 270 275 371 421 268 226 102 90 89 97 158 255
9 263 247 384 400 270 204 115 81 90 111 174 244
10 288 241 375 396 284 193 127 87 82 107 181 251
11 273 234 373 387 288 177 105 101 84 101 180 270
12 264 247 425 379 278 176 97 97 99 99 180 291
13 254 242 405 413 268 186 99 106 93 98 196 273
14 258 257 403 405 261 205 109 100 81 111 197 265
15 272 263 409 384 251 185 104 84 86 207 192 263
16 263 284 409 442 253 169 100 82 87 160 176 244
17 238 269 417 466 258 168 101 74 88 148 188 253
18 234 266 444 401 267 163 112 94 110 135 181 287
19 250 267 447 381 265 169 103 231 119 128 164 270
20 260 266 433 377 253 157 97 171 123 147 174 249
21 254 265 430 350 245 148 103 112 223 167 190 277
22 251 269 505 345 227 138 104 96 175 138 189 292
23 257 269 478 355 213 136 104 91 119 122 200 261
24 289 281 441 351 229 143 132 85 105 131 195 254
25 393 315 422 346 238 162 113 73 101 144 205 261
26 402 335 397 330 239 147 98 78 108 152 219 271
27 366 306 417 347 228 129 92 77 128 143 229 269
28 353 289 428 333 212 133 95 99 118 148 220 246
29 295 291 443 323 210 132 98 90 129 149 262 241
30 264   476 303 225 135 103 73 133 163 241 248
31 242   495   245   88 72   159   248