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USGS Daily Statistics for Oregon

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 11501000 SPRAGUE RIVER NEAR CHILOQUIN, OR


Klamath County, Oregon
Hydrologic Unit Code 18010202
Latitude  42°35'03.5", Longitude 121°50'54.0" NAD83
Drainage area 1,565  square miles
Gage datum 4,202.43 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 1921-10-01 -> 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
1 471 559 750 1,120 1,230 851 338 214 207 244 299 355
2 487 570 771 1,140 1,230 834 331 212 204 248 301 368
3 511 570 779 1,160 1,220 816 322 209 201 251 302 386
4 544 575 770 1,170 1,220 795 316 208 200 253 300 398
5 545 579 763 1,160 1,220 775 309 206 200 255 300 401
6 520 584 761 1,140 1,200 754 299 205 203 257 303 397
7 491 595 759 1,140 1,190 729 295 206 205 259 303 387
8 476 600 763 1,160 1,180 705 285 202 207 260 305 382
9 464 606 771 1,190 1,170 682 278 200 208 261 308 380
10 460 626 783 1,200 1,170 662 273 200 209 265 308 386
11 457 642 811 1,210 1,170 645 267 200 212 269 309 389
12 460 647 854 1,210 1,170 622 262 200 212 269 312 400
13 470 644 891 1,210 1,160 603 259 196 213 275 313 402
14 476 639 910 1,210 1,150 583 254 195 215 280 320 403
15 488 642 913 1,220 1,120 561 250 194 217 288 329 416
16 510 651 919 1,220 1,100 541 248 193 221 300 337 427
17 555 655 933 1,220 1,080 519 242 194 228 305 337 436
18 591 666 939 1,230 1,060 497 240 197 230 302 338 444
19 596 686 942 1,240 1,050 478 238 197 229 292 337 442
20 590 708 945 1,250 1,050 460 237 196 232 286 340 430
21 586 723 958 1,270 1,050 451 234 199 232 285 338 429
22 581 746 963 1,270 1,050 437 232 200 235 287 336 450
23 562 768 962 1,270 1,040 422 230 200 235 288 340 486
24 537 777 970 1,260 1,040 410 228 199 233 290 344 534
25 531 769 992 1,260 1,020 399 226 200 237 294 346 591
26 541 748 1,020 1,250 995 389 224 203 238 294 353 610
27 552 735 1,040 1,250 964 381 223 203 240 294 357 583
28 544 734 1,060 1,250 938 373 224 202 238 296 354 547
29 533 736 1,080 1,250 913 363 220 199 240 297 350 515
30 539   1,090 1,240 889 350 215 201 242 299 353 482
31 545   1,100   872   214 205   299   465