USGS · 02290918

LOSTMANS RIVER

USGS · 02290918LIVE

LOSTMANS RIVER BELOW SECOND BAY, FL

MONROE COUNTY, FL25.5556°N, -81.1647°W Updated 1 hr ago

FLOW RATE

14,500cfs

GAUGE HT

-1.16ft

AIR TEMP

77°F

WIND

1mph NE

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

14,500cfs 1033.0% vs avg

Optimal band: 10,540–14,260 cfs

PERIOD HIGH

15,400cfs

PERIOD LOW

1,080cfs

RUNNABLE

39%

last 1 day in band

Gauge Height

-1.16ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

16.5in

≈ normal

16.54 in of precipitation so far this year — about average for this point in the season (normal 15.94 in).

YTD Total

16.5in

This year so far

Normal to Date

15.9in

30-yr average

Typical Range

10.3–22.1in

10th–90th pct YTD

Departure

+4%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.68" · normal 1.33" (0.2–2.5)

Jan

Feb: 0.44" · normal 1.31" (0.3–2.4)

Feb

Mar: 3.05" · normal 1.38" (0.3–2.7)

Mar

Apr: 1.98" · normal 1.67" (0.5–3.1)

Apr

May: 4.50" · normal 3.32" (0.6–5.3)

May

Jun: 5.09" · normal 6.34" (3.5–10.1)

Jun

Jul: 0.80" (so far)· normal 4.60" (2.8–6.2)

Jul

Aug: normal 5.60" (3.4–7.8)

Aug

Sep: normal 6.01" (3.2–8.8)

Sep

Oct: normal 3.43" (1.0–7.3)

Oct

Nov: normal 1.27" (0.2–2.5)

Nov

Dec: normal 1.11" (0.2–2.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo05:14 AM

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Station Location

25.5556, -81.1647

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DATA · USGS · NOAA · NWSUPDATED 2026-07-04 05:37 UTC

Site #02290918·USGS

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