USGS · 04182000

ST. MARYS RIVER

USGS · 04182000LIVE

ST. MARYS RIVER NEAR FORT WAYNE, IN

INDIANA40.9878°N, -85.1119°W Updated 1 hr ago

FLOW RATE

108cfs

AIR TEMP

77°F

WIND

5mph NW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

108cfs 67.4% vs avg

Optimal band: 113–153 cfs

PERIOD HIGH

192cfs

PERIOD LOW

105cfs

RUNNABLE

38%

last 7 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

23.7in

≈ normal

23.71 in of precipitation so far this year — about average for this point in the season (normal 21.21 in).

YTD Total

23.7in

This year so far

Normal to Date

21.2in

30-yr average

Typical Range

16.7–25.6in

10th–90th pct YTD

Departure

+12%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.55" · normal 2.75" (1.3–4.2)

Jan

Feb: 1.40" · normal 2.36" (1.3–3.6)

Feb

Mar: 4.08" · normal 3.21" (2.0–4.5)

Mar

Apr: 7.16" · normal 4.07" (2.5–5.9)

Apr

May: 3.45" · normal 4.10" (2.3–6.0)

May

Jun: 4.39" · normal 3.97" (1.9–5.6)

Jun

Jul: 1.68" (so far)· normal 3.42" (2.2–5.5)

Jul

Aug: normal 3.28" (1.8–4.8)

Aug

Sep: normal 2.56" (1.0–4.3)

Sep

Oct: normal 2.85" (1.5–4.2)

Oct

Nov: normal 3.06" (1.4–4.7)

Nov

Dec: normal 2.67" (1.5–4.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:35 AM

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Station Location

40.9878, -85.1119

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC

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