Chicago River at Chicago Lock at Chicago water level

What this means

Water levels are unremarkable at Chicago River at Chicago Lock at Chicago, where the gauge shows −2.05 ft.

That puts it 0.01 ft above the median of −2.06 ft for mid-October, based on 24 years of readings. A year ago it stood at −2.23 ft (+0.18 ft).

The level has held steady over the past 24 hours. The 30-day range is −3.32 ft – −1.58 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 24 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date

−2.06 ft0.01 ft above the median for this date

Normal for this date

−2.38 ft – −1.65 ft8 years in 10 fall in this range (24 years of records)

Same day last year

−2.23 ft+0.18 ft

Lowest and highest in 30 days

−3.32 ft – −1.58 ft

Lowest and highest in 12 months

−3.68 ft – −1.42 ft