USGS · 03010820

ALLEGHENY RIVER

USGS · 03010820LIVE

ALLEGHENY RIVER AT OLEAN NY

CITY OF OLEAN, NY42.0724°N, -78.4509°W Updated 10 hr ago

FLOW RATE

767cfs

GAUGE HT

2.01ft

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

767cfs 40.9% vs avg

Optimal band: 447–605 cfs

PERIOD HIGH

1,126cfs

PERIOD LOW

301cfs

RUNNABLE

29%

last 30 day in band

Gauge Height

2.01ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

25.3in

≈ normal

25.3 in of precipitation so far this year — about average for this point in the season (normal 23.01 in).

YTD Total

25.3in

This year so far

Normal to Date

23.0in

30-yr average

Typical Range

18.0–28.1in

10th–90th pct YTD

Departure

+10%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.29" · normal 3.21" (1.8–4.6)

Jan

Feb: 1.65" · normal 2.53" (1.6–4.2)

Feb

Mar: 4.90" · normal 3.40" (2.3–4.7)

Mar

Apr: 6.02" · normal 4.09" (2.9–5.8)

Apr

May: 4.13" · normal 4.10" (2.8–5.9)

May

Jun: 3.67" · normal 4.30" (2.3–6.3)

Jun

Jul: 1.64" (so far)· normal 4.03" (2.4–6.5)

Jul

Aug: normal 3.71" (2.1–5.5)

Aug

Sep: normal 3.78" (2.1–5.6)

Sep

Oct: normal 3.78" (2.2–5.7)

Oct

Nov: normal 3.18" (1.6–4.6)

Nov

Dec: normal 3.34" (2.2–4.5)

Dec

Baseline 1991–2020 · Source: Open-Meteo06:34 UTC

Your History · ALLEGHENY RIVER AT OLEAN NY

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Station Location

42.0724, -78.4509

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC

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