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USGS Surface-Water 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 14138900 NORTH FORK BULL RUN RIVER NEAR MULTNOMAH FALLS, OR


Multnomah County, Oregon
Hydrologic Unit Code 17080001
Latitude  45°29'40", Longitude 122°02'05" NAD27
Drainage area 8.32  square miles
Gage datum 1,065 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 1965-10-01 -> 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
1 106 117 92 93 83 57 32 16 18 30 84 155
2 103 101 92 92 86 62 32 16 18 25 85 183
3 110 84 87 87 90 60 32 16 18 28 79 146
4 122 86 85 80 85 60 29 15 17 27 99 150
5 125 87 94 87 91 56 27 15 17 25 88 131
6 136 100 91 93 90 60 26 15 18 26 101 129
7 143 120 90 100 89 64 25 16 19 28 117 131
8 136 90 80 104 81 61 25 16 17 29 98 111
9 140 95 100 103 80 57 25 15 16 34 89 117
10 123 94 96 101 77 61 25 15 18 31 84 127
11 120 81 91 105 75 59 25 15 18 35 102 137
12 136 94 95 98 70 57 23 15 17 36 119 131
13 171 97 91 99 71 55 26 15 16 38 118 149
14 168 101 92 97 82 52 24 15 16 39 100 122
15 151 109 101 92 79 47 22 15 19 40 97 111
16 154 128 98 92 78 47 21 15 19 35 104 117
17 148 130 88 87 77 44 21 15 23 33 123 109
18 153 125 100 82 75 45 21 15 26 37 101 101
19 147 141 93 81 74 45 20 15 24 45 107 96
20 138 129 87 89 68 41 20 16 26 50 109 134
21 118 115 83 81 69 39 19 17 24 55 110 131
22 96 114 86 79 70 38 20 17 21 68 117 115
23 138 117 90 88 70 37 21 17 25 54 119 115
24 136 94 85 96 67 37 20 18 29 50 125 115
25 129 85 90 92 65 41 20 21 26 56 161 115
26 107 79 87 91 64 40 20 21 22 58 122 112
27 104 88 91 96 66 38 19 19 22 65 116 135
28 110 98 94 88 65 35 19 18 26 66 122 144
29 111 104 105 84 69 37 18 17 28 67 117 127
30 113   109 90 68 33 17 19 29 70 123 125
31 123   98   61   16 17   96   105