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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
1 521 635 883 945 329 249 612 713 914 1,050 324 194
2 505 611 900 1,070 315 238 604 779 907 1,120 336 204
3 503 608 919 1,120 390 218 607 827 868 1,090 315 216
4 531 663 923 1,160 447 214 600 866 829 1,120 300 238
5 543 679 924 1,200 446 222 591 870 817 1,110 282 254
6 541 691 910 1,130 415 235 576 1,010 936 981 265 261
7 544 727 908 1,030 378 269 563 1,090 1,200 885 268 267
8 551 785 925 917 349 320 566 1,080 1,280 909 266 266
9 553 792 947 849 331 362 577 1,070 1,220 882 252 260
10 543 796 1,030 817 314 408 595 1,010 1,150 819 239 270
11 535 788 1,060 810 289 401 591 958 1,210 751 231 299
12 540 772 1,020 796 267 384 588 914 1,290 711 300 313
13 564 755 944 766 255 373 592 891 1,290 647 298 325
14 578 745 887 710 237 371 586 872 1,200 572 273 359
15 592 739 870 653 222 416 580 876 1,110 521 252 384
16 588 737 886 643 211 426 570 888 1,010 523 247 398
17 576 807 921 667 209 416 569 888 941 544 254 411
18 552 867 987 626 217 405 576 867 1,010 531 245 459
19 538 900 1,030 574 208 391 578 860 1,030 544 235 458
20 528 909 1,010 538 207 410 589 897 1,010 621 231 455
21 524 879 989 502 232 403 608 951 918 641 221 448
22 530 872 919 456 284 373 644 1,010 843 697 212 457
23 553 886 830 414 303 349 657 1,100 796 629 208 462
24 596 897 796 406 293 337 668 1,120 930 566 198 465
25 620 884 746 407 304 335 643 1,100 1,020 632 195 468
26 608 871 736 386 318 462 626 1,040 964 588 192 487
27 607 857 765 360 316 687 618 1,010 931 518 187 510
28 608 872 758 366 303 718 638 1,030 938 452 184 553
29 622 1,100 786 369 286 674 650 1,020 987 396 182 556
30 638   838 350 271 633 658 992 1,040 350 183 564
31 646   873   266   669 962   318   547