USGS · 03227107

OLENTANGY RIVER

USGS · 03227107LIVE

Olentangy River at J H Herrick Dr at Columbus OH

OHIO39.9978°N, -83.0236°W Updated 15 hr ago

FLOW RATE

95cfs

AIR TEMP

85°F

WIND

5mph SSW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

95cfs 34.0% vs avg

Optimal band: 123–167 cfs

PERIOD HIGH

4,590cfs

PERIOD LOW

21cfs

RUNNABLE

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

24.0in

≈ normal

24.02 in of precipitation so far this year — about average for this point in the season (normal 23.46 in).

YTD Total

24.0in

This year so far

Normal to Date

23.5in

30-yr average

Typical Range

18.4–30.9in

10th–90th pct YTD

Departure

+2%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.77" · normal 3.31" (1.6–4.8)

Jan

Feb: 1.56" · normal 2.84" (1.6–4.3)

Feb

Mar: 5.44" · normal 3.87" (2.4–5.8)

Mar

Apr: 3.81" · normal 4.53" (2.4–7.4)

Apr

May: 6.52" · normal 4.41" (2.1–7.3)

May

Jun: 4.56" · normal 4.04" (1.9–6.8)

Jun

Jul: 0.36" (so far)· normal 3.55" (1.7–5.8)

Jul

Aug: normal 2.99" (1.7–5.0)

Aug

Sep: normal 2.88" (1.2–5.3)

Sep

Oct: normal 2.96" (1.5–4.8)

Oct

Nov: normal 3.17" (1.6–5.3)

Nov

Dec: normal 3.34" (2.1–4.9)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:02 AM

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Station Location

39.9978, -83.0236

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DATA · USGS · NOAA · NWSUPDATED 2026-07-04 00:00 UTC

Site #03227107·USGS

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