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USGS Surface-Water 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 2,000.00 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 1933-10-01 -> 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
1 375 303 342 294 147 132 59 36 46 112 171 212
2 326 305 369 276 144 131 57 35 47 120 170 234
3 286 312 360 258 146 126 57 35 47 122 172 240
4 276 317 327 244 147 126 53 34 47 123 171 233
5 274 312 312 241 147 127 52 35 48 124 171 233
6 271 309 303 233 143 125 51 35 50 125 172 218
7 261 348 298 227 142 122 49 35 52 129 175 222
8 261 339 301 221 141 119 48 35 51 130 177 226
9 259 333 300 215 146 116 46 36 51 132 176 228
10 268 326 294 209 150 114 45 35 52 140 179 231
11 288 319 298 198 149 110 43 35 52 144 180 239
12 277 318 305 190 145 106 43 35 53 148 183 239
13 286 319 292 188 140 104 42 34 55 153 183 238
14 297 327 289 188 132 101 41 34 58 151 189 249
15 323 316 285 186 128 100 42 33 62 151 188 260
16 382 320 290 182 124 94 41 35 64 151 191 248
17 392 322 292 178 125 88 39 36 69 151 194 249
18 368 338 300 177 126 86 41 34 77 151 194 242
19 355 339 292 178 125 85 41 36 81 154 193 249
20 388 326 280 173 127 84 38 39 83 155 191 274
21 370 350 274 173 132 81 37 40 85 156 194 292
22 362 343 275 170 127 74 36 43 88 158 196 395
23 354 324 304 165 128 68 36 44 90 162 199 408
24 350 314 318 162 128 67 35 44 90 164 208 300
25 316 332 308 157 127 66 37 45 94 164 203 264
26 307 326 294 153 125 65 37 44 96 164 198 249
27 338 315 277 147 123 64 36 43 97 163 201 267
28 334 324 264 145 123 62 36 43 100 165 204 292
29 325 405 262 145 125 62 36 44 103 166 198 287
30 306   275 146 128 60 36 46 104 172 197 308
31 295   289   130   37 47   172   369