Trout Creek at St. Marys
Water level and flow at gauge 02GD009, Ontario. The flow is below normal for October (42% of the median). In the last 24 hours it has been steady.
Latest reading Oct 25, 8 AM local standard time (2 hours ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 66 years of monthly averages): 0.73 m³/s25.9 cfs – 2.86 m³/s101 cfs, median 1.43 m³/s50.3 cfs. Right now it is at 42% of the median.
April 3, 1960 · approved records 1950–2025 (HYDAT). Right now the flow is 1% of that record.
43% lower than on October 25, 2025 (1.06 m³/s37.4 cfs)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 58 years (lighter band: 10th–90th percentile). Past years: approved daily means from HYDAT, the Water Survey of Canada archive (the latest year published is 2025). 2026: daily means of the provisional real-time readings collected by Canada River Levels since October 22, 2026.
Weather near this gauge
Sunny. Becoming a mix of sun and cloud this afternoon. High 18. UV index 4 or moderate.
A few clouds. Low 7.
Cloudy. High 14. UV index 3 or moderate.
Cloudy. Low zero.
Forecast for Stratford (15 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| North Thames RiverSt. Marys · 4 km | 2.92 m9.58 ft | Below normal |
| Avon RiverBelow Stratford · 8 km | 6.31 m20.69 ft | Below normal |
| Trout CreekFairview · 11 km | 11.36 m37.27 ft | Normal |
| Fish CreekProspect Hill · 12 km | 3.23 m10.61 ft | Normal |
| Avon RiverAbove Stratford · 18 km | 6.22 m20.39 ft | Normal |
| North Thames RiverMitchell · 21 km | 3.60 m11.82 ft | Normal |
About this gauge
Station: 02GD009 · Trout Creek Near St. Marys
Location: 43.2732, -81.1032 · Ontario
Same river: Fairview, Campbellford
Water levels are measured from a local reference point at each gauge, not from sea level, so they cannot be compared between gauges.
Official sources
For flood warnings, advisories and approved data, always use these official services:
Questions
What is the water level of the Trout Creek at St. Marys today?
The latest reading (Oct 25, 8 AM, local standard time) is 5.73 m (18.81 ft) with a flow of 0.61 m³/s (21.4 cfs).
Is the Trout Creek at St. Marys high right now?
The flow is below normal for October (42% of the median).
Is the Trout Creek rising or falling?
In the last 24 hours it has been steady.
What is the highest flow ever recorded on the Trout Creek at St. Marys?
59.5 m³/s (2,101 cfs) on April 3, 1960, the highest instantaneous flow in the approved records of the Water Survey of Canada (1950–2025). Events after 2025 are not yet in the approved archive.
How does the Trout Creek at St. Marys compare with a year ago?
The flow is 43% lower than on October 25, 2025 (1.06 m³/s (37.4 cfs), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02GD009 of the Water Survey of Canada (Environment and Climate Change Canada). Real-time data are provisional and may be revised. We check for new readings every 30 minutes. Canada River Levels is not an official source.