MEDIAN FLOW RATE · 1 YEAR
1,509cfs 3.5% vs avg
Optimal band: 339–459 cfs
PERIOD HIGH
8,371cfs
PERIOD LOW
84cfs
RUNNABLE
17%
last 1 year in band
Precipitation History
Your History · Upper Iowa River at Decorah, IA
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Station Location
43.3049, -91.7955Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #05387500·USGS
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