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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 07194800 Illinois River at Savoy, AR


Washington County, Arkansas
Hydrologic Unit Code 11110103
Latitude  36°06'11", Longitude  94°20'40" NAD83
Drainage area 167  square miles
Gage datum 1,018.97 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 1978-10-01 -> 2022-09-30)

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
1 250 153 157 260 434 218 88 42 24 311 153 238
2 182 126 134 202 395 189 96 34 28 110 91 150
3 216 120 255 229 555 145 220 47 79 83 141 118
4 325 228 170 334 509 154 94 40 85 78 101 108
5 289 179 179 231 836 153 73 34 45 69 81 95
6 176 195 136 216 470 223 99 56 32 181 86 93
7 142 192 130 213 254 356 185 38 26 95 190 122
8 121 157 139 452 273 228 153 45 25 71 162 90
9 109 139 190 205 293 186 235 33 52 424 94 84
10 131 134 200 472 418 191 208 64 43 137 69 132
11 316 224 154 287 332 133 114 44 46 213 77 144
12 185 208 201 305 236 109 82 33 36 121 68 97
13 413 220 172 296 237 97 202 48 28 146 57 192
14 281 169 302 247 306 86 79 140 190 120 53 169
15 184 146 213 191 322 75 60 59 89 91 78 177
16 132 141 246 173 296 100 200 43 74 62 104 290
17 119 373 168 155 316 90 79 104 96 53 152 336
18 140 179 575 238 233 114 111 54 73 67 174 293
19 138 149 878 177 194 276 57 60 46 64 501 156
20 115 162 479 208 379 106 44 49 40 52 243 122
21 149 225 380 222 344 93 54 39 31 50 110 147
22 127 212 341 349 249 81 102 31 138 62 147 109
23 116 193 289 660 371 325 52 74 155 56 112 111
24 128 468 281 1,380 498 135 46 41 84 180 105 92
25 176 201 373 1,260 378 91 97 34 49 117 93 92
26 143 161 301 996 407 96 51 34 61 101 77 117
27 114 161 373 335 305 149 70 34 39 101 159 986
28 168 221 300 408 288 85 42 30 33 125 161 493
29 142 70 327 935 214 65 38 26 40 150 125 187
30 148   368 743 225 101 51 24 288 280 426 209
31 219   330   178   53 23   118   215