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USGS Surface-Water Daily Statistics for Colorado

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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 06730525 ST VRAIN CR BLW BOULDER CR AT HWY 119 NR LONGMONT


Weld County, Colorado
Hydrologic Unit Code 10190005
Latitude  40°09'37.68", Longitude 105°00'28.57" NAD83
Drainage area 872  square miles
Gage datum 4,849 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 2012-10-01 -> 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
1 114 104 111 117 248 863 362 192 89 170 159 133
2 114 101 111 107 263 846 435 156 95 184 157 131
3 115 99 111 110 371 830 357 144 91 177 153 131
4 115 101 105 116 372 905 302 128 92 177 151 134
5 112 101 105 118 363 1,010 335 119 104 166 163 128
6 112 102 107 110 367 1,060 390 114 102 158 150 124
7 113 101 112 104 364 1,050 350 119 97 156 150 124
8 112 101 125 98 454 1,090 338 140 111 154 149 125
9 116 101 122 97 737 1,080 367 117 129 161 145 125
10 115 99 115 102 654 1,040 322 109 132 179 145 121
11 111 101 110 108 722 1,010 264 108 139 163 151 121
12 113 103 107 110 749 1,130 228 104 122 154 148 121
13 106 107 121 114 595 1,150 201 99 108 153 143 121
14 103 111 127 119 547 1,070 178 105 104 152 143 120
15 103 107 114 124 522 937 185 110 126 152 143 122
16 100 104 116 165 487 861 183 130 103 150 142 121
17 100 103 123 241 438 902 162 139 98 146 152 120
18 102 102 126 212 597 952 139 107 95 145 145 121
19 104 103 147 179 805 972 129 121 352 145 142 120
20 102 102 146 186 775 935 131 119 299 152 140 116
21 103 100 128 190 750 869 148 115 272 173 139 115
22 100 105 132 221 728 867 168 108 254 180 134 114
23 101 109 148 233 766 762 142 101 296 182 136 114
24 100 113 143 242 776 644 145 99 271 171 135 117
25 101 116 142 243 839 547 130 99 223 172 136 116
26 99 118 141 265 855 534 149 109 202 174 134 117
27 100 116 133 280 830 493 149 105 184 170 133 115
28 100 110 136 296 797 449 136 110 193 176 133 118
29 101 118 145 271 766 409 117 102 178 174 135 121
30 103   137 255 774 362 146 100 177 169 136 117
31 104   124   836   218 94   161   115