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USGS Daily Statistics for Maine

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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 01049500 Cobbosseecontee Stream at Gardiner, Maine


Kennebec County, Maine
Hydrologic Unit Code 01030003
Latitude  44°13'45", Longitude  69°46'41" NAD83
Drainage area 216  square miles
Contributing drainage area 216  square miles
Gage datum 19.28 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 1905-10-01 -> 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
1 347 345 373 886 668 377 224 173 137 237 305 358
2 345 334 379 917 675 376 215 173 138 249 309 367
3 348 326 384 948 640 371 208 171 139 248 314 373
4 342 325 396 961 614 365 153 161 142 253 313 376
5 335 328 395 974 564 351 158 162 140 244 316 371
6 332 321 389 986 528 336 196 159 140 231 314 366
7 325 318 396 991 523 338 192 159 152 233 323 387
8 318 321 417 1,000 504 330 198 161 153 238 338 384
9 315 309 415 1,000 495 323 199 169 160 246 345 378
10 327 298 435 995 472 341 203 176 159 249 339 374
11 337 295 462 990 476 325 196 168 160 258 336 396
12 341 299 477 986 468 307 180 173 166 257 334 416
13 341 300 517 990 478 304 182 173 178 264 330 416
14 345 307 532 1,010 486 310 183 180 183 260 328 422
15 353 310 554 1,020 440 309 188 185 182 261 340 436
16 348 317 551 1,050 415 290 189 186 188 274 339 442
17 338 315 553 1,040 403 275 188 190 197 279 338 426
18 334 311 554 1,000 418 305 193 173 205 285 335 437
19 335 316 583 977 475 304 184 177 204 298 332 437
20 335 314 614 933 433 307 186 187 204 298 318 432
21 331 314 607 896 416 301 171 180 209 293 329 428
22 321 321 616 888 407 305 169 171 200 296 340 444
23 323 326 621 838 391 294 168 169 200 298 343 430
24 339 322 639 793 394 294 178 167 204 308 338 415
25 349 324 642 803 392 285 186 154 203 313 329 377
26 361 354 634 773 369 273 178 154 205 311 322 381
27 385 354 668 747 349 264 181 150 211 308 322 394
28 384 365 734 725 358 247 175 150 211 307 336 395
29 365 427 807 708 365 228 178 144 215 318 337 376
30 355   824 670 323 218 176 145 226 309 334 363
31 355   835   345   176 148   303   362