Waterlands
Rock River
USGS · 05440700
ROCK RIVER
USGS · 05440700LIVE

ROCK RIVER AT BYRON, IL

ILLINOIS42.1222°N, -89.2554°W Updated 13 hr ago
FLOW RATE
3,334cfs
GAUGE HT
5.60ft
WATER TEMP
76°F
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
3,334cfs 31.1% vs avg
Optimal band: 3,587–4,853 cfs
PERIOD HIGH
31,345cfs
PERIOD LOW
2,722cfs
RUNNABLE
28%
last 1 year in band

Gauge Height

5.60ft

Water Temperature

75.9°F
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Station Location

42.1222, -89.2554
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DATA · USGS · NOAA · NWSUPDATED 2026-09-01 00:00 UTC
Site #05440700·USGS

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