USGS · 05536085

NB CHICAGO RIVER

USGS · 05536085LIVE

NB CHICAGO RIVER AT N PULASKI ROAD AT CHICAGO, IL

CHICAGO, IL41.9747°N, -87.7283°W Updated 13 hr ago

FLOW RATE

161cfs

AIR TEMP

78°F

WIND

7mph SW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

161cfs 4.1% vs avg

Optimal band: 103–139 cfs

PERIOD HIGH

350cfs

PERIOD LOW

17cfs

RUNNABLE

16%

last 30 day in band

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

22.6in

+17% vs normal

22.63 in of precipitation so far this year, 17% above the 30-year normal of 19.34 in for this point in the season.

YTD Total

22.6in

This year so far

Normal to Date

19.3in

30-yr average

Typical Range

13.4–24.6in

10th–90th pct YTD

Departure

+17%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.27" · normal 2.27" (1.2–3.6)

Jan

Feb: 0.80" · normal 2.07" (0.8–3.7)

Feb

Mar: 4.05" · normal 2.61" (1.5–4.3)

Mar

Apr: 6.76" · normal 4.10" (2.4–6.3)

Apr

May: 1.24" · normal 4.16" (1.7–6.2)

May

Jun: 6.81" · normal 3.87" (1.5–6.0)

Jun

Jul: 0.70" (so far)· normal 3.62" (2.0–4.6)

Jul

Aug: normal 3.73" (1.8–5.5)

Aug

Sep: normal 3.00" (1.2–5.5)

Sep

Oct: normal 3.37" (1.6–6.5)

Oct

Nov: normal 2.65" (1.4–4.3)

Nov

Dec: normal 2.30" (1.1–3.9)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:13 AM

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Station Location

41.9747, -87.7283

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 13:38 UTC

Site #05536085·USGS

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