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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 06730200 BOULDER CREEK AT NORTH 75TH ST. NEAR BOULDER, CO


Boulder County, Colorado
Hydrologic Unit Code 10190005
Latitude  40°03'06", Longitude 105°10'42" NAD27
Drainage area 307  square miles
Gage datum 5,106 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 1986-10-01 -> 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 31 28 31 35 122 293 228 128 81 47 37 32
2 33 27 31 36 118 286 219 119 84 49 35 33
3 34 27 31 40 125 281 209 119 86 44 34 32
4 33 27 34 40 119 291 196 122 85 47 35 32
5 32 27 32 39 120 300 190 138 87 45 35 31
6 32 27 33 38 125 308 190 133 83 46 33 31
7 32 28 33 37 134 329 194 121 79 43 33 32
8 33 28 34 37 141 332 200 110 78 44 34 32
9 32 28 35 37 160 356 215 104 74 47 34 32
10 32 28 33 41 164 329 205 105 70 48 35 33
11 32 29 34 40 175 321 200 108 72 46 34 33
12 31 29 33 42 165 359 196 102 190 45 32 32
13 31 31 35 47 154 341 194 102 183 46 32 33
14 32 30 36 47 154 320 184 101 101 47 32 33
15 30 30 34 53 161 315 168 101 105 46 32 33
16 29 29 33 60 159 326 154 104 93 45 31 32
17 30 28 34 71 182 331 150 101 81 45 31 33
18 30 28 34 69 203 365 145 100 81 45 32 32
19 30 30 35 67 219 358 135 101 72 45 33 33
20 29 31 35 67 220 356 138 91 68 44 33 33
21 30 30 35 69 224 337 134 88 65 45 34 33
22 29 30 35 85 228 339 127 88 64 45 32 33
23 29 31 35 94 233 312 130 88 63 43 32 31
24 29 31 39 103 243 282 122 92 59 41 31 31
25 29 31 37 105 241 268 123 86 55 40 32 32
26 29 31 37 108 238 260 124 84 52 42 32 32
27 29 30 36 110 234 260 121 84 52 40 33 32
28 28 31 36 108 230 249 122 84 52 40 32 32
29 30 30 36 112 247 243 123 84 48 40 32 33
30 29   37 125 286 235 141 85 49 39 33 32
31 29   36   284   138 81   40   31