USGS · 021721675

STONO RIVER

USGS · 021721675LIVE

STONO RIVER AT MAIN RD BELOW RANTOWLES, SC

CHARLESTON, SC32.7851°N, -80.1069°W

AIR TEMP

86°F

WIND

11mph S

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

18.1in

-18% vs normal

18.1 in of precipitation so far this year, 18% below the 30-year normal of 21.98 in for this point in the season.

YTD Total

18.1in

This year so far

Normal to Date

22.0in

30-yr average

Typical Range

15.3–29.1in

10th–90th pct YTD

Departure

-18%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.10" · normal 3.21" (1.3–5.2)

Jan

Feb: 2.96" · normal 3.29" (1.4–5.3)

Feb

Mar: 1.25" · normal 3.20" (1.6–5.3)

Mar

Apr: 2.90" · normal 3.05" (1.4–5.6)

Apr

May: 3.96" · normal 2.77" (1.1–4.9)

May

Jun: 4.52" · normal 5.34" (3.1–8.6)

Jun

Jul: 0.42" (so far)· normal 5.40" (3.0–7.5)

Jul

Aug: normal 6.44" (3.4–9.8)

Aug

Sep: normal 4.91" (2.4–7.8)

Sep

Oct: normal 4.01" (1.1–7.6)

Oct

Nov: normal 2.62" (0.9–4.2)

Nov

Dec: normal 3.39" (1.4–5.5)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:35 AM

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Station Location

32.7851, -80.1069

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