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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
1 228 222 231 210 210 193 202 214 237 210 211 224
2 224 218 238 224 208 193 206 217 261 215 214 217
3 236 227 225 221 204 193 195 206 228 225 215 219
4 242 218 226 210 202 191 219 227 211 223 219 221
5 231 228 231 208 200 191 208 210 206 224 214 223
6 236 227 240 207 201 190 198 200 205 239 214 217
7 226 241 224 209 201 192 198 200 206 218 214 217
8 223 235 222 206 205 193 196 198 216 212 231 222
9 247 223 217 217 199 192 194 199 231 211 220 216
10 243 237 216 245 220 190 209 201 217 210 215 216
11 236 235 236 209 198 192 197 221 247 239 214 220
12 222 232 242 210 197 191 197 224 231 279 217 220
13 218 234 269 205 195 191 197 210 213 219 217 216
14 216 255 219 204 195 192 200 221 218 228 211 221
15 225 240 220 214 195 191 208 210 209 219 214 221
16 225 224 233 208 194 198 204 208 204 215 214 217
17 219 225 219 204 194 191 203 213 203 223 213 215
18 218 250 219 202 199 191 212 231 203 243 215 220
19 218 238 213 204 198 190 213 224 204 236 213 215
20 233 227 215 203 195 190 214 229 209 227 225 218
21 245 251 215 202 195 194 219 217 208 235 226 225
22 243 260 215 205 195 191 208 241 208 220 254 247
23 244 265 219 203 195 189 239 225 207 218 224 239
24 220 230 213 200 196 191 214 213 209 220 220 242
25 219 227 212 199 196 188 217 206 208 220 217 218
26 227 253 213 208 195 190 227 228 204 218 221 226
27 236 219 211 204 194 189 226 223 216 217 222 228
28 221 226 211 203 195 188 229 212 216 219 225 231
29 225 218 214 215 194 190 221 202 210 216 225 266
30 226   211 229 194 199 212 203 209 216 220 233
31 219   211   194   212 202   215   233