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USGS Surface-Water 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 14377100 ILLINOIS RIVER NEAR KERBY, OR


Josephine County, Oregon
Hydrologic Unit Code 17100311
Latitude  42°13'55", Longitude 123°39'45" NAD27
Drainage area 380  square miles
Gage datum 1,198.80 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 1961-10-01 -> 2024-09-30)

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 2,670 2,660 2,140 2,160 1,120 663 174 54 44 81 387 2,140
2 2,250 2,500 2,380 1,960 1,120 614 170 53 43 75 403 2,840
3 2,350 2,670 2,320 1,870 1,170 596 158 51 42 75 394 2,310
4 2,410 2,260 2,150 1,720 1,140 654 149 49 41 71 461 2,100
5 2,170 2,090 2,130 1,710 1,260 586 142 49 41 74 666 2,210
6 2,470 2,280 2,210 1,760 1,270 542 136 49 42 73 891 2,290
7 2,130 2,380 2,110 1,880 1,240 530 129 48 41 83 661 2,310
8 2,550 2,280 2,130 2,150 1,150 493 125 48 41 87 912 2,500
9 2,620 2,410 2,450 1,930 1,080 457 122 47 49 182 857 2,240
10 2,930 2,150 2,490 1,840 1,020 439 118 47 76 211 1,020 2,270
11 2,880 2,010 2,270 1,780 983 419 113 45 62 204 999 2,070
12 2,950 2,140 2,370 1,750 938 395 108 44 51 216 1,180 2,320
13 3,450 2,530 2,700 1,810 903 380 104 44 46 198 1,060 2,910
14 3,370 2,670 2,860 1,780 890 362 99 43 44 224 1,070 3,100
15 3,340 2,470 2,600 1,650 884 347 95 43 44 207 1,140 2,990
16 3,540 2,810 2,790 1,580 873 327 91 45 44 307 1,190 2,540
17 3,830 2,710 2,480 1,630 851 310 88 44 44 250 1,180 2,520
18 3,430 2,810 2,490 1,650 895 301 87 42 48 227 1,250 2,130
19 3,760 2,860 2,130 1,630 867 292 85 42 51 269 1,250 2,350
20 3,840 2,510 2,100 1,620 810 280 82 43 52 212 1,500 2,580
21 3,400 2,550 2,160 1,590 803 262 78 42 50 183 1,700 3,200
22 3,320 2,460 2,280 1,470 803 247 75 41 49 184 2,060 3,450
23 2,840 2,560 2,360 1,470 747 235 72 40 50 260 2,160 2,910
24 2,860 2,150 2,330 1,590 721 223 70 40 52 286 2,400 2,490
25 2,710 2,230 2,350 1,430 688 215 68 41 63 405 1,800 2,330
26 3,070 2,230 2,240 1,330 662 211 65 43 89 391 1,810 2,400
27 2,940 2,320 2,120 1,330 661 201 62 44 75 378 1,620 2,660
28 2,560 2,530 2,180 1,330 658 193 60 42 86 360 1,650 3,090
29 2,250 2,660 2,360 1,230 623 188 58 41 101 406 1,630 2,890
30 2,170   2,810 1,160 612 178 57 44 131 446 1,820 3,000
31 2,320   2,310   679   56 47   443   2,840