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USGS Daily Statistics for Arkansas

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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 1,018.09 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 -> 2021-09-30)

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
1 221 157 148 252 415 178 87 41 24 323 156 246
2 161 129 126 196 350 165 94 34 29 113 92 155
3 210 122 261 230 493 131 226 47 81 86 144 121
4 328 235 170 346 363 149 95 39 87 80 101 111
5 292 184 181 229 269 151 73 34 46 71 81 98
6 176 199 135 213 366 228 102 57 32 187 87 95
7 143 194 122 215 182 352 191 38 26 98 195 125
8 121 155 135 479 223 157 158 45 25 73 167 93
9 108 135 194 211 264 149 243 33 53 440 96 86
10 132 131 206 503 411 123 215 65 43 141 69 136
11 325 226 156 298 322 107 117 44 46 220 78 149
12 189 211 208 316 222 98 84 34 36 125 68 100
13 428 224 170 252 236 91 209 48 28 151 57 199
14 289 172 307 214 315 83 81 145 197 119 52 175
15 188 148 192 176 334 73 61 61 92 87 79 183
16 134 143 244 148 308 101 206 43 76 61 107 301
17 120 265 164 132 329 91 74 107 99 54 156 263
18 141 142 601 234 238 118 51 55 75 69 179 159
19 140 133 937 173 194 294 41 61 47 65 520 118
20 116 154 505 209 396 109 36 50 40 52 251 101
21 152 223 400 225 352 89 50 40 31 49 113 139
22 129 179 320 366 246 80 102 31 143 61 151 103
23 118 179 282 707 386 335 51 76 160 55 115 107
24 130 473 283 1,370 528 138 44 42 86 185 108 89
25 180 196 358 1,170 380 92 91 34 50 119 95 89
26 146 152 281 1,010 414 98 50 35 63 104 79 116
27 116 148 378 326 292 152 70 34 40 101 164 1,020
28 172 211 303 241 221 84 41 30 33 113 167 508
29 146 70 337 752 199 65 37 26 41 147 129 190
30 151   298 732 223 102 51 24 299 286 442 213
31 226   303   176   54 23   119   219