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USGS Daily Statistics for Florida

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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 02231000 ST. MARYS RIVER NEAR MACCLENNY, FL


Baker County, Florida
Hydrologic Unit Code 03070204
Latitude  30°21'31", Longitude  82°04'54" NAD27
Drainage area 700  square miles
Gage datum 40.00 feet above NGVD29
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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 1926-10-01 -> 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
1 516 634 878 940 326 246 612 713 914 1,050 321 192
2 500 610 894 1,060 313 236 604 779 907 1,120 333 202
3 498 607 913 1,110 386 218 607 827 868 1,090 312 214
4 526 660 916 1,150 443 214 600 866 829 1,120 298 236
5 538 676 917 1,190 442 222 591 870 817 1,110 280 252
6 536 687 902 1,120 412 235 576 1,010 936 981 263 259
7 539 723 901 1,020 374 269 563 1,090 1,200 885 266 264
8 546 780 917 910 346 320 566 1,080 1,280 909 264 263
9 548 787 939 843 329 362 577 1,070 1,220 882 251 258
10 538 790 1,030 811 311 408 595 1,010 1,150 819 237 268
11 530 783 1,080 804 287 401 591 958 1,210 751 229 296
12 535 767 1,040 790 265 384 588 914 1,290 711 297 311
13 559 749 968 760 254 373 592 891 1,290 647 296 322
14 573 740 909 705 237 371 586 872 1,200 572 271 356
15 588 733 889 648 222 416 580 876 1,110 521 250 381
16 583 732 901 638 211 426 570 888 1,010 523 245 394
17 571 801 933 661 208 416 569 888 941 540 252 407
18 547 861 997 621 216 405 576 867 1,010 527 243 455
19 535 894 1,040 570 207 391 578 860 1,030 540 233 454
20 532 902 1,020 533 206 410 589 897 1,010 616 229 451
21 530 873 993 498 231 403 608 951 918 636 219 444
22 536 865 921 452 282 373 644 1,010 843 691 211 453
23 561 880 832 411 301 349 657 1,100 796 624 206 458
24 603 890 797 403 291 337 668 1,120 930 562 197 461
25 627 878 747 403 302 335 643 1,100 1,020 627 193 463
26 613 866 735 383 315 462 626 1,040 964 583 191 483
27 611 852 763 358 313 687 618 1,010 931 514 185 505
28 611 867 756 363 301 718 638 1,030 938 449 182 547
29 624 1,100 783 366 284 674 650 1,020 987 393 181 550
30 639   834 347 268 633 658 992 1,040 348 182 559
31 646   868   263   669 962   315   542