Calumet Union Drainage Canal near Markham water level

What this means

The Calumet Union Drainage Canal near Markham is at 2.30 ft, in the normal range for mid-October.

The median for mid-October is 2.39 ft, based on 7 years of readings, so the river stage is 0.09 ft below typical. It is 7.70 ft below the flood stage of 10.00 ft. On the same day last year the reading was 3.70 ft, a difference of −1.40 ft.

It has dropped 0.04 ft over the past 24 hours. In the last month it has stayed between 2.30 ft and 4.68 ft.

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

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date

2.39 ft0.09 ft below the median for this date

Normal for this date

2.15 ft – 3.18 ft8 years in 10 fall in this range (7 years of records)

Same day last year

3.70 ft−1.40 ft

Lowest and highest in 30 days

2.30 ft – 4.68 ft

Lowest and highest in 12 months

2.10 ft – 7.86 ft

Highest on record

12.00 ftOctober 11, 1954