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SwedenDon River East Branch near Thornhill water level
River gauge, Don River East Branch, Ontario, Canada
Right now
Low for mid-October
Water level
- Flow
- 0.19 m³/s
History
What this means
Low water at Don River East Branch near Thornhill: the gauge reads 2.02 m, below normal for mid-October.
The median for mid-October is 2.05 m, based on 19 years of readings, so the water level is 0.03 m below typical.
It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 2.01 m – 2.19 m.
Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.
Compared with 19 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 2.05 m0.03 m below the median for this date
- Normal for this date
- 2.02 m – 2.11 m8 years in 10 fall in this range (19 years of records)
- Lowest and highest in 30 days
- 2.01 m – 2.19 m
- Lowest and highest in 12 months
- 2.01 m – 2.09 m
Freshet, ice and paddling
Open-water season is the time for canoe trips and fishing, though rapids change character with every few centimetres of water.
Flood advisories come from the provincial river forecast centre.
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Don River West Branch at York MillsRiver gauge, Don River West Branch | 0.55 m | Normal | ±0 | 10 km |
| East Humber River near Pine GroveRiver gauge, East Humber River | 2.06 m | Normal | ±0 | 12 km |
| Humber River at Elder MillsRiver gauge, Humber River | 5.46 m | Low | −0.01 m | 15 km |
| Humber River at WestonRiver gauge, Humber River | 2.19 m | Normal | −0.01 m | 16 km |
| East Humber River at King CreekRiver gauge, East Humber River | 1.28 m | Very low | ±0 | 16 km |
| Little Rouge Creek near Dicksons HillRiver gauge, Little Rouge Creek | 5.14 m | High | −0.01 m | 17 km |
| Rouge River near MarkhamRiver gauge, Rouge River | 3.30 m | Low | −0.01 m | 17 km |
| Don River at TodmordenRiver gauge, Don River | 12.12 m | Low | ±0 | 17 km |
Questions and answers
What is a normal level for the Don River East Branch near Thornhill in mid-October?
The median for mid-October is 2.05 m. In 8 years out of 10 the reading falls between 2.02 m and 2.11 m, based on 19 years of records.
Is the river level the same as the depth of the water?
No. The reading is measured from a fixed zero mark at the gauge, so 2.02 m on the gauge does not mean the water is that deep.
What is the water level of Don River East Branch near Thornhill today?
On Oct 20, 2026, 01:20 PM EDT, the water level was 2.02 m. Steady over the last 24 hours.
Is Don River East Branch near Thornhill rising or falling?
Steady over the last 24 hours. Down 0.05 m over the last 7 days.
Is the level of Don River East Branch near Thornhill normal?
Low for mid-October. Compared with 19 years of daily readings for this time of year.
How often is this data updated?
Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.
Where does this data come from?
The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- Environment and Climate Change Canada – Water Survey of Canada
- Station code
eccc:02HC056(Agency page)- Coordinates
43.82661, -79.43808(WGS84)- Vertical datum
- station datum (assumed datum)
- Update interval
- every hour
- Licence
- Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 2.02 m | 2026-10-20 17:20 | Provisional |
| Flow | 0.19 m³/s | 2026-10-20 17:20 | Provisional |
Download
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How to cite
Environment and Climate Change Canada – Water Survey of Canada: Don River East Branch near Thornhill (eccc:02HC056). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/don-river-east-branch-near-thornhill
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer