Cheval Blanc rapids, Laval 043301
Reading the latest value from Quebec's environment ministry…
Live readings are provisional: the agency publishes them before checking them and can revise them. CanoeMap shows the agency's numbers as published. See this gauge at the agency
Typical flow by month
Cheval Blanc rapids, Laval 043301
Flow is typically highest in April (1,690 m³/s) and lowest in September (773 m³/s).
| Month | Typical flow (m³/s) | Middle half of days |
|---|---|---|
| January | 1,090 | 974 – 1,180 |
| February | 1,070 | 976 – 1,150 |
| March | 1,170 | 1,030 – 1,350 |
| April | 1,690 | 1,360 – 2,110 |
| May | 1,620 | 1,130 – 2,040 |
| June | 1,140 | 947 – 1,440 |
| July | 930 | 813 – 1,060 |
| August | 809 | 689 – 930 |
| September | 773 | 652 – 904 |
| October | 865 | 745 – 1,020 |
| November | 1,130 | 874 – 1,330 |
| December | 1,110 | 986 – 1,260 |
Flow: median of daily means, 22 complete years from 1996 to 2024.
When does the spring peak come?
Computed from the agency's published daily means: for each year, the highest day between March 1 and July 31.
Cheval Blanc rapids, Laval (043301): over 22 complete years from 1996 to 2024, the highest daily flow between March and July came around April 24 (the median date). In 12 of those 22 years it came between April 14 and May 6. The median peak was 2,340 m³/s; the highest in the period, 3,310 m³/s, came on May 8, 2017.
About the gauges
Cheval Blanc rapids, Laval
- Station number
- 043301
- Official name
- Des Prairies - à la tête du rapide du Cheval Blanc (chenal sud)
- Agency
- Quebec's environment ministry
- Municipality
- Laval
- Drainage area
- 146 920 km²
- Flow regime, as the ministry classes it
- influenced (Influencé)
- Federal station number
- 02OA004
Canoe routes on the Rivière des Prairies
Questions
What is the Rivière des Prairies water level today?
The reading at the top of this page comes from Quebec's environment ministry each time the page loads, for gauge 043301 (Cheval Blanc rapids, Laval). The table of typical values shows whether the reading is high or low for the season.
When does the Rivière des Prairies peak in spring?
Cheval Blanc rapids, Laval (043301): over 22 complete years from 1996 to 2024, the highest daily flow between March and July came around April 24 (the median date). In 12 of those 22 years it came between April 14 and May 6. The median peak was 2,340 m³/s; the highest in the period, 3,310 m³/s, came on May 8, 2017.
Live readings: Données Québec, "Stations débit/niveau - Grand public", CC BY 4.0. Typical values: validated historical series from Quebec's environment ministry. CanoeMap computes the typical values and the peak dates from those archives.