Bayou Lafourche Sw of Donaldsonville, La

USGS · 07380401

BAYOU LAFOURCHE SW OF DONALDSONVILLE, LA

USGS · 07380401LIVE

Bayou Lafourche SW of Donaldsonville, LA

DONALDSONVILLE, LA30.0966°N, -91.0059°W Updated 16 min ago

FLOW RATE

496cfs

GAUGE HT

8.35ft

AIR TEMP

75°F

WIND

10mph SSW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

496cfs 21.7% vs avg

Optimal band: 429–581 cfs

PERIOD HIGH

525cfs

PERIOD LOW

427cfs

RUNNABLE

99%

last 1 day in band

Gauge Height

8.35ft

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

34.6in

+17% vs normal

34.59 in of precipitation so far this year, 17% above the 30-year normal of 29.59 in for this point in the season.

YTD Total

34.6in

This year so far

Normal to Date

29.6in

30-yr average

Typical Range

20.7–36.0in

10th–90th pct YTD

Departure

+17%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.10" · normal 4.70" (2.8–6.7)

Jan

Feb: 1.62" · normal 4.36" (1.9–7.3)

Feb

Mar: 4.61" · normal 4.44" (2.0–6.8)

Mar

Apr: 2.73" · normal 4.46" (1.0–7.5)

Apr

May: 10.25" · normal 4.03" (0.7–7.1)

May

Jun: 7.63" · normal 5.10" (2.1–9.5)

Jun

Jul: 5.65" (so far)· normal 6.20" (3.6–9.3)

Jul

Aug: normal 6.24" (2.6–12.6)

Aug

Sep: normal 4.67" (1.8–8.1)

Sep

Oct: normal 3.83" (0.3–7.2)

Oct

Nov: normal 3.56" (1.4–6.3)

Nov

Dec: normal 3.96" (2.3–6.5)

Dec

Baseline 1991–2020 · Source: Open-Meteo15:16 UTC

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Station Location

30.0966, -91.0059

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DATA · USGS · NOAA · NWSUPDATED 2026-07-13 15:00 UTC

Site #07380401·USGS

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