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USGS Daily Statistics for the Nation

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 15300300 ILIAMNA R NR PEDRO BAY AK


Lake And Peninsula Borough, Alaska
Hydrologic Unit Code 19030206
Latitude  59°45'31", Longitude 153°50'41" NAD27
Drainage area 129  square miles
Gage datum 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 1995-10-01 -> 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
1 272 206 150 187 609 2,280 2,120 1,190 1,140 2,300 759 365
2 281 198 153 194 627 2,210 1,960 1,390 1,150 2,050 675 340
3 261 191 157 180 636 2,120 1,960 1,370 1,290 1,530 611 372
4 269 209 157 173 678 2,180 1,980 1,290 1,100 1,600 641 365
5 271 236 156 169 726 2,350 1,990 1,420 1,150 1,350 781 349
6 234 213 152 172 771 2,430 1,990 1,750 1,090 1,170 847 399
7 212 201 146 205 796 2,640 2,020 1,780 1,130 1,120 630 392
8 204 213 140 201 840 2,770 1,840 1,330 1,460 1,520 553 391
9 209 201 144 209 916 2,880 1,780 1,300 1,540 1,580 542 601
10 206 192 147 241 1,020 2,860 1,800 1,140 1,360 1,610 574 527
11 206 188 144 234 1,130 2,490 1,730 1,190 1,040 1,270 570 431
12 230 184 140 227 1,150 2,260 1,820 1,170 1,370 1,360 640 404
13 250 175 137 225 1,130 2,100 1,820 1,250 1,730 1,390 546 412
14 287 171 134 237 1,140 2,130 1,580 1,310 1,730 1,000 472 333
15 317 172 133 238 1,190 2,360 1,550 1,250 1,850 904 433 301
16 404 172 136 246 1,300 2,430 1,630 1,200 1,740 866 409 407
17 433 177 149 249 1,290 2,590 1,580 1,110 1,520 921 407 332
18 347 172 158 288 1,310 2,810 1,500 972 1,970 879 423 287
19 337 168 164 356 1,370 2,770 1,610 945 1,870 1,030 446 272
20 293 162 163 377 1,510 2,440 1,490 1,080 1,720 840 434 255
21 264 162 193 367 1,640 2,300 1,510 1,020 1,690 880 477 241
22 262 174 203 388 1,600 2,260 1,460 989 1,540 1,050 585 242
23 259 171 191 410 1,790 2,220 1,400 1,050 1,400 923 785 229
24 255 164 183 479 1,760 2,300 1,500 1,030 1,410 894 600 231
25 280 164 181 511 1,780 2,470 1,400 922 1,260 861 559 233
26 337 164 174 524 1,820 2,320 1,420 954 1,080 809 492 248
27 350 159 166 525 2,080 2,310 1,400 952 1,020 787 469 271
28 302 156 161 526 2,210 2,230 1,240 831 1,090 945 477 251
29 272 205 157 561 2,220 2,010 1,340 987 1,170 809 427 248
30 247   159 597 2,500 1,970 1,310 949 1,250 779 406 284
31 221   171   2,440   1,320 1,050   890   283