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Arrowhead Run at Thayerville, MD Water Level Today

Maryland · USGS gauge 03075850 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 03075850 sits on Arrowhead Run and reads everything draining 1 square miles of the Youghiogheny basin. Its datum sits 2,462 feet above sea level NAVD88. Daily flow has been on record here since 2017, 9 years of it.

Normal flows here

Arrowhead Run runs a median of 0.9 cfs at this gauge across 9 years of record. February is the fullest month at a median 2.3 cfs, and September the leanest at 0.1 cfs. The highest daily mean on record is 38 cfs in 2024, and the lowest is 0.0 cfs in 2024.

Median flow by month
MonthMedian flowShare of annual median
Jan1.5 cfs160%
Feb2.3 cfs246%
Mar1.8 cfs193%
Apr1.9 cfs203%
May1.5 cfs160%
Jun0.6 cfs66%
Jul0.3 cfs30%
Aug0.2 cfs19%
Sep0.1 cfs14%
Oct0.2 cfs17%
Nov0.6 cfs64%
Dec1.1 cfs118%

Medians from the USGS daily-statistics record, 2017 to 2026. A month at 100% is running at its own long-term median.

Nearby river gauges

Live streamflow and gage height: USGS gauge 03075850. Percentile context computed against the gauge's period of record. Not for navigation.

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