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USGS Daily Statistics for the Nation

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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 14015350 MILL CR AT LAST CHANCE RD BR NR COLLEGE PLACE, WA


Walla Walla County, Washington
Hydrologic Unit Code 17070102
Latitude  46°03'04.56", Longitude 118°27'01.81" NAD83
Gage datum 649.11 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 2020-10-01 -> 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
1 132 141 285 193 169 100 22 7.1 15 26 43 71
2 120 127 334 198 161 93 21 12 15 22 48 70
3 125 116 330 198 146 102 22 13 16 24 47 77
4 131 109 306 197 146 123 20 13 16 22 79 129
5 184 111 284 189 148 131 19 13 16 21 253 133
6 239 139 269 170 177 125 17 14 15 18 117 115
7 313 137 242 165 399 110 15 15 16 17 122 115
8 336 141 215 176 375 94 15 14 16 16 122 127
9 274 135 190 187 228 81 15 15 17 17 87 119
10 253 127 180 208 166 83 13 16 18 19 79 171
11 236 126 171 244 133 86 12 17 19 20 73 228
12 230 125 172 213 125 110 12 15 22 19 129 196
13 244 123 188 177 122 379 12 13 21 19 163 174
14 244 125 201 155 126 383 11 13 19 19 107 172
15 231 122 227 142 150 192 10 13 21 19 74 148
16 218 117 244 134 173 130 9.3 13 21 19 65 130
17 202 116 244 132 158 97 9.3 13 20 19 62 113
18 197 131 237 142 145 82 9.3 13 24 20 68 115
19 195 144 247 186 127 72 8.6 14 27 21 65 132
20 235 179 244 186 116 63 8 14 27 21 68 123
21 325 184 239 180 98 58 6.6 15 28 24 65 115
22 234 203 274 163 99 50 7.1 17 27 36 73 115
23 219 385 257 150 92 42 7.5 18 24 31 96 134
24 208 497 266 151 84 38 7.8 17 23 29 91 157
25 200 335 290 154 79 34 8.8 17 23 39 78 165
26 174 292 267 149 80 29 10 16 26 36 74 187
27 165 265 248 138 83 27 10 15 24 34 71 259
28 170 231 244 132 81 26 9.7 16 26 33 69 232
29 164 362 234 132 97 24 8.9 15 27 46 67 183
30 151   214 155 133 23 7.1 15 28 51 66 166
31 146   199   115   6.9 14   37   148