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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 11517500 SHASTA R NR YREKA CA


Siskiyou County, California
Hydrologic Unit Code 18010207
Latitude  41°49'23", Longitude 122°35'40" NAD27
Drainage area 793  square miles
Gage datum 2,036.93 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 1933-10-01 -> 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
1 372 302 340 293 147 132 59 36 46 112 171 211
2 324 304 367 275 144 130 57 35 47 120 170 233
3 285 310 358 257 146 126 56 35 47 121 171 239
4 275 316 325 243 147 126 53 35 47 123 171 232
5 272 310 311 240 147 127 52 35 48 123 170 232
6 270 308 302 232 144 125 51 36 50 125 171 218
7 260 349 297 226 143 122 49 35 52 129 175 221
8 260 338 300 220 142 118 48 35 51 129 176 225
9 258 331 298 214 146 115 46 36 51 131 176 227
10 267 325 293 208 150 113 45 35 52 139 179 230
11 287 317 297 197 148 109 43 36 52 144 179 238
12 276 316 303 189 145 106 43 35 53 148 183 238
13 286 317 291 187 140 103 42 34 56 152 183 237
14 299 326 288 188 132 101 41 34 58 151 189 248
15 323 315 284 187 127 99 42 34 62 150 188 259
16 380 318 289 183 124 93 41 35 64 151 191 246
17 389 320 291 179 125 88 40 36 70 150 193 248
18 366 336 299 177 126 85 41 34 77 151 194 240
19 353 338 291 178 125 85 41 36 81 153 192 248
20 386 326 279 172 126 84 38 39 83 155 191 273
21 368 352 273 173 132 81 37 40 85 156 195 291
22 360 345 274 170 127 74 37 43 88 158 198 392
23 352 323 303 164 128 67 36 44 90 161 201 406
24 348 313 317 161 127 67 35 44 90 163 210 298
25 314 331 306 157 126 66 37 45 94 164 204 263
26 306 324 293 153 124 65 37 44 96 163 198 248
27 337 314 276 147 123 63 36 43 97 163 201 266
28 333 323 263 145 123 62 36 43 100 165 204 291
29 323 395 262 144 125 62 36 44 103 166 197 286
30 304   275 146 128 60 36 46 104 172 196 307
31 294   288   129   37 47   172   367