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USGS Daily Statistics for New York

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 01502500 UNADILLA RIVER AT ROCKDALE NY


Chenango County, New York
Hydrologic Unit Code 02050101
Latitude  42°22'40", Longitude  75°24'22" NAD83
Drainage area 520  square miles
Contributing drainage area 520  square miles
Gage datum 991.95 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 1929-10-01 -> 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 1,170 846 1,010 2,680 1,240 659 620 343 305 370 658 971
2 1,160 894 1,010 2,650 1,230 725 591 321 400 413 655 991
3 1,080 917 1,030 2,690 1,150 730 545 269 341 412 708 957
4 1,040 890 1,100 2,770 1,150 709 473 271 262 376 670 1,020
5 968 817 1,340 2,900 1,100 621 399 299 232 372 638 1,040
6 947 805 1,640 2,770 1,040 652 392 251 226 399 696 1,020
7 976 855 1,610 2,710 1,020 642 373 235 285 456 747 1,050
8 902 839 1,600 2,600 1,000 581 406 231 418 441 726 1,020
9 867 780 1,600 2,360 1,040 557 413 256 372 426 747 1,010
10 876 766 1,490 2,280 1,000 547 368 270 308 424 787 1,040
11 870 857 1,480 2,260 1,020 538 327 268 275 364 815 1,170
12 876 904 1,670 2,160 990 532 326 249 263 340 754 1,190
13 931 855 1,700 2,080 996 542 341 238 255 340 725 1,190
14 973 883 1,700 2,020 1,010 608 319 239 235 346 749 1,130
15 948 929 1,760 1,890 953 606 308 233 239 408 762 1,090
16 893 1,030 1,800 1,900 944 583 290 214 252 502 801 1,010
17 801 1,040 1,940 1,980 1,020 556 280 239 253 598 959 944
18 808 998 1,970 1,820 962 557 313 272 323 643 914 1,010
19 814 949 1,770 1,650 901 483 289 281 349 610 856 1,060
20 790 1,020 1,830 1,610 884 450 280 257 336 581 894 967
21 795 1,140 1,880 1,570 924 459 307 246 348 631 921 992
22 866 1,200 1,990 1,520 930 503 338 246 381 557 864 1,040
23 926 1,180 1,990 1,510 888 516 430 240 358 523 880 1,000
24 942 1,180 1,910 1,470 829 495 377 229 373 586 884 1,040
25 1,060 1,260 1,980 1,460 759 471 325 207 368 605 886 1,120
26 1,110 1,270 2,090 1,410 760 465 279 186 363 654 917 1,090
27 1,100 1,160 2,290 1,360 746 467 272 194 414 731 1,010 1,050
28 1,020 1,100 2,260 1,340 725 666 305 225 498 807 1,050 1,080
29 873 829 2,220 1,300 704 726 323 313 426 790 1,070 1,130
30 823   2,330 1,210 724 668 318 361 356 711 1,020 1,240
31 845   2,530   641   310 296   646   1,280