MEDIAN FLOW RATE · 30 DAY
72cfs 11.4% vs avg
Optimal band: 154–208 cfs
PERIOD HIGH
1,673cfs
PERIOD LOW
72cfs
RUNNABLE
13%
last 30 day in band
Precipitation History
Your History · ST. MARYS RIVER AT DECATUR, IN
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Station Location
40.8481, -84.9377Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #04181500·USGS
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