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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 01119382 WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT


Tolland County, Connecticut
Hydrologic Unit Code 01100002
Latitude  41°49'26.44", Longitude  72°18'46.25" NAD83
Drainage area 96.3  square miles
Gage datum 319 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 2008-10-01 -> 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
1 226 185 272 413 325 163 123 66 73 125 168 199
2 209 180 276 365 282 177 156 66 244 106 147 190
3 192 175 289 338 252 154 170 65 141 107 179 190
4 200 201 253 356 243 141 257 81 98 116 153 174
5 212 214 222 333 226 135 179 87 78 127 135 173
6 225 192 234 300 220 128 115 83 80 104 131 187
7 202 190 430 313 201 135 110 73 100 93 128 209
8 175 209 326 340 191 211 102 88 132 97 122 273
9 166 187 269 322 196 161 213 79 124 81 112 227
10 167 170 239 302 204 130 285 87 103 74 126 260
11 176 199 309 266 189 153 155 83 93 71 129 233
12 215 221 333 245 182 174 131 69 90 75 128 205
13 285 216 343 310 176 158 125 70 121 77 142 225
14 226 209 387 312 191 244 143 66 100 109 146 260
15 208 188 359 309 192 196 132 85 74 102 129 231
16 213 203 348 381 215 146 160 101 63 92 129 205
17 214 220 310 473 219 122 197 69 55 133 148 210
18 218 225 282 346 255 118 304 99 65 102 136 198
19 234 215 271 315 216 118 215 159 80 92 126 182
20 227 211 261 302 202 106 145 121 64 96 141 162
21 187 206 240 296 190 106 110 79 55 98 133 192
22 163 204 254 268 159 96 105 86 60 89 121 227
23 182 228 274 327 148 91 113 103 62 83 143 238
24 273 256 291 304 190 87 108 93 80 82 158 242
25 323 348 279 257 174 89 106 73 96 113 170 306
26 335 384 261 256 162 97 116 72 108 147 148 285
27 267 324 255 335 151 82 109 70 87 151 191 245
28 229 300 260 272 132 114 111 164 78 152 176 238
29 199 237 317 232 168 134 99 156 125 151 146 217
30 188   465 227 168 103 111 95 157 241 184 229
31 197   457   170   83 72   201   218