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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 09419800 LV WASH BLW LAKE LAS VEGAS NR BOULDER CITY, NV


Clark County, Nevada
Hydrologic Unit Code 15010015
Latitude  36°07'20", Longitude 114°54'15" NAD27
Drainage area 2,193  square miles
Contributing drainage area 1,586.00  square miles
Gage datum 1,249.45 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 1968-10-01 -> 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
1 231 225 233 214 214 196 205 214 237 210 211 227
2 227 222 241 227 211 196 209 217 261 215 214 220
3 238 230 228 224 207 199 200 206 228 225 215 222
4 244 221 229 214 208 195 223 227 211 223 219 224
5 233 231 233 212 209 196 211 210 206 224 217 226
6 239 230 244 210 225 195 202 200 205 239 217 220
7 228 243 227 212 207 196 201 200 206 218 217 220
8 226 238 226 210 209 196 199 198 216 212 234 225
9 249 226 221 220 203 195 197 199 231 211 223 219
10 245 240 220 247 223 193 212 201 217 210 219 219
11 238 238 239 212 202 195 200 221 247 239 218 223
12 225 235 244 213 200 194 201 224 231 279 219 222
13 221 240 271 208 199 195 201 210 213 219 221 219
14 219 269 223 208 199 195 203 221 218 228 215 224
15 228 243 223 217 198 194 211 210 209 219 217 224
16 228 227 236 211 197 200 206 208 204 215 217 220
17 222 228 222 208 197 194 206 213 203 223 216 218
18 221 252 222 205 202 194 217 231 203 243 218 223
19 221 240 217 208 202 193 218 224 204 236 216 217
20 236 229 219 207 199 193 217 229 209 227 228 221
21 248 253 219 206 198 197 221 217 208 235 229 227
22 245 261 218 208 198 194 210 241 208 220 257 249
23 246 266 222 206 198 192 240 225 207 218 228 242
24 223 233 216 204 199 194 217 213 209 220 224 245
25 222 230 216 203 199 192 219 206 208 220 220 221
26 229 255 216 212 198 194 229 228 204 218 224 228
27 238 222 214 207 198 192 228 223 216 217 225 231
28 224 228 215 206 198 191 231 212 216 219 229 234
29 228 218 217 218 197 193 223 202 210 216 228 268
30 229   214 232 198 202 214 203 209 216 223 236
31 223   215   197   214 202   215   237