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Green River at Munfordville, KY Water Level Today

Kentucky · USGS gauge 03308500 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 03308500 sits on the Green River and reads everything draining 1,673 square miles of the Upper Green basin. Only 1,493 square miles of that contributes flow in a normal year; the rest is closed basin that does not drain to the river. Its datum sits 451 feet above sea level NAVD88. Daily flow has been on record here since 1970, 53 years of it.

Where this gauge sits in the drainage

No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Green River at Mammoth Cave, KY at 2,020 square miles, so what passes this gauge is about 83% of the water measured there. Water passing here goes on to Green River at Hwy 259 at Brownsville, KY.

Normal flows here

The Green River runs a median of 1,490 cfs at this gauge across 53 years of record. February is the fullest month at a median 4,550 cfs, and September the leanest at 362 cfs. The highest daily mean on record is 62,800 cfs in 1984, and the lowest is 112 cfs in 2008.

Median flow by month
MonthMedian flowShare of annual median
Jan3,800 cfs255%
Feb4,550 cfs305%
Mar4,260 cfs286%
Apr2,820 cfs189%
May1,560 cfs105%
Jun812 cfs54%
Jul573 cfs38%
Aug457 cfs31%
Sep362 cfs24%
Oct502 cfs34%
Nov1,240 cfs83%
Dec2,930 cfs197%

Medians from the USGS daily-statistics record, 1970 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Green River reaches flood stage at this gauge at 28 feet. NWS starts watching it at 26 feet. The highest crest on record is 57.7 feet, in March 1962.

NWS flood categories
CategoryGage height
Action26 ft
Minor flooding28 ft
Moderate flooding50 ft
Major flooding57 ft
Highest crests on record
WhenCrest
March 196257.7 ft
January 191354 ft
May 198453.8 ft
December 197851.9 ft
May 201051.9 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge MFVK2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 03308500. Percentile context computed against the gauge's period of record. Not for navigation.

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