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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 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 -> 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
1 108 99 112 134 305 822 349 183 89 164 152 129
2 107 97 113 127 318 819 417 150 94 176 151 128
3 110 110 114 125 406 807 342 139 91 169 149 128
4 110 118 107 129 399 877 286 124 92 168 150 130
5 108 112 103 130 382 981 313 116 106 159 158 126
6 105 108 104 124 376 1,040 364 112 104 151 145 123
7 103 105 110 115 363 1,070 327 118 98 150 147 123
8 101 103 126 110 436 1,120 318 139 110 147 146 122
9 105 103 121 105 688 1,120 342 120 126 153 154 123
10 106 102 114 109 611 1,060 302 112 128 170 150 119
11 103 101 110 115 670 1,020 250 109 136 155 149 120
12 103 102 107 118 699 1,130 216 104 121 147 143 120
13 98 105 119 123 560 1,160 191 100 106 148 136 119
14 95 114 154 130 513 1,070 168 109 103 147 135 118
15 95 109 146 135 490 942 175 109 123 147 135 119
16 96 107 141 168 459 866 174 127 102 145 134 119
17 100 106 142 237 415 899 154 135 98 142 142 118
18 100 105 140 214 558 935 133 105 95 139 137 117
19 100 106 160 185 750 932 124 118 331 138 134 118
20 99 105 156 200 732 894 128 119 282 145 133 114
21 100 104 138 195 725 832 149 113 258 165 132 113
22 100 111 140 226 706 840 166 107 256 174 129 111
23 102 114 154 234 725 742 138 100 290 180 130 109
24 99 116 150 242 723 629 139 98 258 171 129 112
25 99 118 160 244 777 530 126 99 213 172 130 111
26 98 117 155 267 793 513 143 110 192 172 128 113
27 98 116 144 368 770 475 144 106 174 166 130 111
28 98 112 143 400 742 438 131 108 184 173 130 113
29 99 118 150 340 715 405 114 100 170 169 132 115
30 100   143 316 722 353 140 99 170 160 132 111
31 100   134   789   205 94   154   110