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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 14015000 MILL CREEK AT WALLA WALLA, WA


Walla Walla County, Washington
Hydrologic Unit Code 17070102
Latitude  46°04'35", Longitude 118°16'21" NAD27
Drainage area 95.7  square miles
Gage datum 1,120.00 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 1940-10-01 -> 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
1 119 182 162 209 136 63 9.7 2.6 2.8 6.3 22 98
2 117 165 167 206 134 58 8.2 2.5 3.1 5.3 19 114
3 109 145 161 188 130 62 7.5 2.4 3 5.7 16 108
4 110 147 154 171 130 60 7.1 2.4 2.9 5.8 19 95
5 121 147 149 177 129 61 6.5 2.5 3.1 4.5 26 88
6 137 153 154 193 126 59 6.1 2.5 3.2 4.2 22 96
7 154 189 156 193 129 67 5.5 2.6 3.3 4.4 33 106
8 153 170 155 200 127 74 4.9 2.5 3.2 4.9 36 98
9 142 178 166 196 127 69 4.6 2.6 3.1 5.4 34 88
10 144 180 201 194 118 62 5.1 2.6 3.2 6.1 28 95
11 129 169 187 189 116 59 4.3 2.7 3.3 6.7 32 110
12 129 161 180 183 113 55 4.4 2.7 3.2 7.4 39 124
13 138 172 185 177 109 62 4.1 2.6 3 6.4 42 123
14 156 178 191 187 105 56 3.7 2.6 3 7.1 39 123
15 187 176 198 178 106 46 3.5 2.6 3.2 7.7 38 105
16 187 186 203 164 104 40 3.4 2.4 3.1 7.3 36 94
17 191 193 197 158 105 36 3.4 2.4 3.2 7.1 36 96
18 191 188 191 157 107 34 3.1 2.4 3.6 7.5 39 96
19 185 200 195 160 107 30 3 2.3 4 7.7 42 95
20 172 191 186 174 106 28 2.8 2.4 4.1 11 51 106
21 159 187 185 172 100 25 2.8 2.3 3.9 13 55 122
22 148 192 185 159 91 22 2.7 2.8 3.6 14 55 122
23 153 190 183 160 83 19 2.8 2.9 3.7 17 61 124
24 178 190 182 164 76 16 3 2.8 3.9 15 67 116
25 181 175 190 154 70 14 2.9 2.9 4.1 13 84 117
26 164 164 189 146 72 15 3 2.8 4.4 12 87 120
27 156 153 192 142 72 18 2.9 2.7 4.7 11 85 115
28 165 151 184 144 71 15 2.9 2.6 4.9 11 89 120
29 171 166 183 141 71 14 2.7 2.7 4.9 16 84 125
30 171   194 138 70 13 2.6 3 5.8 14 81 128
31 179   205   68   2.7 3.1   16   123