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USGS Daily Statistics for the Nation

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 01118500 PAWCATUCK RIVER AT WESTERLY, RI


Southeastern Connecticut Planning Region County, Connecticut
Hydrologic Unit Code 011000070303
Latitude  41°23'07", Longitude  71°49'59" NAD27
Drainage area 294.0  square miles
Contributing drainage area 294.0  square miles
Gage datum 5.0 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 1940-10-01 -> 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
1 762 762 918 1,150 850 610 352 222 216 244 359 591
2 779 747 927 1,190 842 618 367 215 228 242 355 588
3 775 771 962 1,200 822 623 352 204 230 242 369 594
4 772 798 959 1,200 814 608 338 203 226 239 381 601
5 768 816 961 1,200 799 606 332 206 213 232 378 604
6 752 803 958 1,180 784 635 327 208 204 236 378 614
7 752 803 991 1,150 766 625 316 211 211 236 376 632
8 751 821 997 1,110 748 619 309 224 215 236 376 654
9 750 796 996 1,080 740 596 302 233 209 229 392 653
10 775 760 1,000 1,050 756 568 296 255 201 232 401 669
11 766 746 992 1,020 758 556 290 261 207 227 409 675
12 753 750 982 990 753 546 287 269 221 222 422 715
13 757 758 1,010 977 753 543 285 273 211 221 435 723
14 761 778 1,070 987 740 561 294 258 206 223 451 713
15 764 785 1,100 985 730 547 293 254 211 261 453 731
16 760 799 1,100 1,000 732 516 291 259 214 285 447 727
17 751 820 1,090 1,020 736 491 295 239 215 300 467 726
18 734 820 1,110 1,010 735 485 281 238 208 295 468 738
19 730 824 1,090 987 728 488 268 243 208 286 451 745
20 737 826 1,070 966 711 488 255 247 212 296 441 712
21 745 812 1,060 935 702 467 251 235 218 318 457 696
22 748 809 1,110 913 683 442 248 230 232 309 476 710
23 739 817 1,140 901 664 426 249 221 229 296 499 713
24 774 835 1,140 894 670 410 263 206 225 294 515 726
25 824 870 1,120 898 679 413 269 199 224 295 532 736
26 871 908 1,080 889 686 410 259 196 230 300 556 746
27 883 911 1,060 894 682 389 247 195 241 308 571 760
28 874 914 1,040 890 666 371 241 194 246 323 572 742
29 862 887 1,030 878 646 355 236 195 247 343 584 734
30 827   1,110 852 622 345 237 199 247 359 592 750
31 795   1,140   613   229 226   362   758