Caen Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Caen, Lower Normandy, France. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.
On average, Caen receives a reasonable amount of rainfall, with an annual precipitation of 811 mm (32 in).
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The wettest period in Caen occurs in December, which receives around 82 mm (3.2 in) of precipitation. During the driest month, March, Caen experiences moderate rainfall, totaling approximately 61 mm (2.4 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.
December, the wettest month, has a maximum daytime temperature of 10°C (50°F). The city receives 60 hours of sunshine in this period. During the driest month March you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our Caen Temperature page.
Annual Rainfall in France: City Comparison
The map below shows the annual precipitation across France. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Caen vs World: Rainfall Compared
Caen's average annual precipitation is 811 mm (32 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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.
Climate change is affecting precipitation patterns worldwide, including Caen:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- "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 (15 inches) wide and 20 cm (7.9 inches) 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 (103 feet) fell during the winter of 1972.
For more detailed information about Caen's weather, including sunshine hours, humidity levels, and temperature data, visit our Caen Climate page.
