DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA

RESTON, VA38.8847°N, -77.3324°W Updated 1 hr ago

FLOW RATE

2.75cfs

GAUGE HT

0.99ft

WATER TEMP

66°F

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

2.75cfs 25.6% vs avg

Optimal band: 2–3 cfs

PERIOD HIGH

4.43cfs

PERIOD LOW

2.4cfs

RUNNABLE

85%

last 1 day in band

Gauge Height

0.99ft

Water Temperature

66.2°F

Water Turbidity

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38.8847, -77.3324

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DATA · USGS · NOAA · NWSUPDATED 2026-10-16 18:25 UTC

Site #01645704·USGS

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