Saint-Denis-sur-Richelieu Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows the average amount of rainfall per month in Saint-Denis-sur-Richelieu. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.
Saint-Denis-sur-Richelieu experiences significant rain/snowfall throughout the year, averaging 1161 mm of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Precipitation levels in Saint-Denis-sur-Richelieu remain relatively steady throughout the year. October has the most rain, with 113 mm over 12 days. In February, this drops slightly to 73 mm, making the city's climate fairly predictable.
October, the wettest month, has a maximum daytime temperature of 14°C. The city receives 140 hours of sunshine in this period. During the driest month February you can expect a temperature of -2°C. For more detailed insights into the city’s temperatures, visit our Saint-Denis-sur-Richelieu Temperature page.
Annual Precipitation in Canada
The map below shows the annual precipitation across Canada. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Saint-Denis-sur-Richelieu’s average annual precipitation is 1161 mm. Let’s compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.
Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.
Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.
How is Precipitation Measured?
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Interesting weather facts
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm wide and 20 cm thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters fell during the winter of 1972.
For more detailed information about Saint-Denis-sur-Richelieu’s weather, including sunshine hours, humidity levels, and temperature data, visit our Saint-Denis-sur-Richelieu Climate page.