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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 -> 2023-09-30)

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
1 119 183 163 209 133 63 9.7 2.6 2.7 6.1 22 99
2 118 166 168 205 132 58 8.1 2.5 2.9 5.2 19 115
3 110 146 162 187 128 63 7.4 2.4 2.8 5.4 15 108
4 110 148 155 170 128 60 7.1 2.3 2.8 5.7 18 93
5 121 147 150 176 127 61 6.5 2.4 3 4.4 25 85
6 138 151 155 192 125 59 6 2.4 3.1 4.1 21 94
7 155 188 157 193 128 68 5.4 2.5 3.2 4.3 31 104
8 154 168 156 199 127 75 4.9 2.4 3.1 4.9 34 97
9 142 177 167 195 127 70 4.6 2.5 3 5.3 33 87
10 144 179 202 191 118 62 5 2.5 3.1 6.1 28 91
11 129 169 188 184 117 59 4.2 2.6 3.1 6.6 31 103
12 129 161 181 180 113 55 4.3 2.6 3.2 7.3 39 120
13 138 172 186 175 109 63 3.9 2.6 2.9 6.3 42 120
14 156 178 191 186 105 57 3.5 2.5 3 7 39 122
15 187 176 197 178 106 47 3.4 2.5 3.1 7.7 38 104
16 187 187 203 163 104 41 3.3 2.4 3 7.2 35 94
17 191 193 197 158 105 37 3.3 2.4 3.1 7.1 36 96
18 191 189 191 156 107 34 3 2.4 3.4 7.5 39 96
19 185 201 196 159 107 30 3 2.2 3.9 7.7 42 95
20 172 192 187 174 106 28 2.8 2.3 4 11 51 106
21 159 187 184 172 101 25 2.8 2.2 3.7 13 55 123
22 148 191 183 159 91 22 2.6 2.7 3.4 14 55 122
23 153 190 182 159 83 19 2.8 2.8 3.6 17 61 125
24 178 190 180 163 77 16 3 2.7 3.7 15 67 116
25 182 176 188 152 70 14 2.8 2.8 3.9 12 84 118
26 165 164 189 145 72 15 2.8 2.7 4.2 12 87 120
27 157 153 192 140 73 18 2.8 2.6 4.5 11 85 116
28 166 151 184 143 71 15 2.8 2.5 4.7 11 90 121
29 171 166 183 139 71 14 2.6 2.6 4.7 16 84 125
30 172   194 135 70 13 2.5 2.8 5.6 14 82 129
31 180   205   68   2.7 3   16   123