BOULDER CREEK AT MOUTH NEAR LONGMONT, CO

WELD COUNTY, CO40.1388°N, -105.0202°W Updated 23 hr ago

FLOW RATE

18cfs

GAUGE HT

9.41ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

18cfs 40.6% vs avg

Optimal band: 28–38 cfs

PERIOD HIGH

238cfs

PERIOD LOW

1cfs

RUNNABLE

31%

last 1 year in band

Gauge Height

9.41ft

Precipitation History

Your History · BOULDER CREEK AT MOUTH NEAR LONGMONT, CO

Track your history

Sign in to track your sessions at BOULDER CREEK AT MOUTH NEAR LONGMONT, CO — best days, monthly trends, and time on the water.

40.1388, -105.0202

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC

Site #06730500·USGS

Create a free account to save favorites, set flow alerts, and track conditions