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USGS Daily Statistics for Oregon

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 14211550 JOHNSON CREEK AT MILWAUKIE, OR


Clackamas County, Oregon
Hydrologic Unit Code 17090012
Latitude  45°27'11", Longitude 122°38'31" NAD27
Drainage area 53.17  square miles
Gage datum 0.00 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 1989-10-01 -> 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
1 166 159 143 93 57 37 24 18 18 29 86 139
2 180 131 131 86 58 40 22 17 18 25 57 152
3 197 110 141 89 59 39 22 17 18 24 47 157
4 154 109 130 79 54 42 21 17 18 25 55 142
5 135 127 113 81 55 43 21 18 18 24 62 138
6 149 163 115 79 53 39 21 18 21 22 71 124
7 147 160 117 92 55 37 20 18 18 22 86 158
8 142 159 104 101 53 36 20 18 19 24 65 164
9 140 148 118 89 52 38 22 17 18 29 56 149
10 164 96 128 89 50 44 21 17 18 35 54 168
11 156 93 106 96 48 62 20 18 18 33 89 172
12 159 102 109 87 43 40 19 18 17 27 93 166
13 180 93 131 88 42 36 19 17 18 29 91 161
14 158 93 124 84 49 33 19 17 19 29 71 179
15 157 110 155 95 48 32 19 17 23 31 76 131
16 171 140 129 88 48 32 18 17 21 30 71 133
17 181 149 112 83 67 32 20 18 24 32 89 149
18 211 154 105 76 65 30 19 18 29 38 100 134
19 194 161 102 69 56 29 19 18 25 34 152 120
20 178 162 95 71 50 33 19 18 23 37 133 183
21 152 144 95 64 47 28 18 18 20 36 104 155
22 131 119 107 64 52 27 19 19 18 45 111 133
23 128 137 103 78 49 26 19 19 19 36 112 122
24 143 159 101 80 44 28 18 19 22 37 146 150
25 136 132 104 73 44 26 18 21 21 35 148 139
26 118 109 90 69 40 26 18 19 21 39 129 137
27 106 115 95 71 40 27 17 18 21 58 109 191
28 130 134 95 68 39 25 18 17 24 46 117 202
29 157 105 115 62 40 25 18 18 26 49 112 204
30 175   111 66 36 23 18 19 30 51 128 195
31 183   91   39   18 18   74   170