USGS · 01606500

SOUTH BRANCH

USGS · 01606500LIVE

SOUTH BRANCH POTOMAC RIVER NEAR PETERSBURG, WV

GRANT COUNTY, WV38.9912°N, -79.1759°W Updated 50 min ago

FLOW RATE

230cfs

GAUGE HT

4.18ft

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

230cfs 32.0% vs avg

Optimal band: 233–315 cfs

PERIOD HIGH

385cfs

PERIOD LOW

139cfs

RUNNABLE

34%

last 1 day in band

Gauge Height

4.18ft

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

19.4in

-16% vs normal

19.35 in of precipitation so far this year, 16% below the 30-year normal of 23.08 in for this point in the season.

YTD Total

19.4in

This year so far

Normal to Date

23.1in

30-yr average

Typical Range

18.9–27.4in

10th–90th pct YTD

Departure

-16%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.93" · normal 3.16" (1.8–4.9)

Jan

Feb: 1.47" · normal 2.97" (1.5–5.3)

Feb

Mar: 3.63" · normal 3.80" (2.2–5.3)

Mar

Apr: 2.13" · normal 3.91" (1.9–5.4)

Apr

May: 4.25" · normal 4.70" (2.4–7.6)

May

Jun: 3.60" · normal 3.71" (2.2–5.2)

Jun

Jul: 1.34" (so far)· normal 3.89" (2.3–5.1)

Jul

Aug: normal 2.92" (1.8–4.4)

Aug

Sep: normal 3.89" (1.1–7.2)

Sep

Oct: normal 2.99" (1.0–5.3)

Oct

Nov: normal 2.74" (1.1–4.2)

Nov

Dec: normal 3.18" (1.9–4.8)

Dec

Baseline 1991–2020 · Source: Open-Meteo09:50 AM

Your History · SOUTH BRANCH POTOMAC RIVER NEAR PETERSBURG, WV

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Station Location

38.9912, -79.1759

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DATA · USGS · NOAA · NWSUPDATED 2026-07-07 09:00 UTC

Site #01606500·USGS

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