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USGS Gauge 0164579522 — The Glade near Howland Drive at Reston, Virginia

0 cfs.

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38.9256, -77.32933889. This gauge on USGS Water Data →

Right now

Live from USGS — the numbers above are current rather than whenever the page was written.

Streamflow, cfs · daily mean
2026-08-31 0–3 cfs 2026-09-29

Daily means from USGS. A gap in the line is a gap in the record.

The record at this gauge

Month Mean temp Mean flow
Jan — 1
Feb — 1
Mar — 1
Apr — 1
May — 1
Jun — 1
Jul — 1
Aug — 0
Sep — 0
Oct — 0
Nov — 0
Dec — 1

Computed here from the last 5 years of USGS daily values at this gauge — 0 temperature days and 1,824 flow days. These are not USGS-published normals, and a month with fewer than 20 days of record is left blank rather than averaged.

What this gauge predicts

This is one of the gauges this site fits an air-to-water model against, which is how the map colours water that has no gauge on it. July mean 72.76 °F; the fit explains 87% of the variance with a typical error of 1.767 °F.

The water it stands in

South Fork Little Difficult Run, classified Class VI (stocked holdover) by VDWR — the nearest reach carrying that classification is 1.14 mi from the gauge.

Snapped to NHD reach 02070008000542 (10000500086405), 2.4 m away. That join is what lets the app paint this gauge's reading onto the reach it measures.

Other gauges near this one

Fly shops nearby

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