MEDIAN FLOW RATE · 1 YEAR
196,355cfs 11.7% vs avg
Optimal band: 162,669–220,081 cfs
PERIOD HIGH
217,625cfs
PERIOD LOW
121,325cfs
RUNNABLE
92%
last 1 year in band
Precipitation History
Your History · ST. CLAIR RIVER AT PORT HURON, MI
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Station Location
42.9870, -82.4246Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #04159130·USGS
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