Alella Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Alella. 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.

Generally, Alella experiences moderate precipitation patterns, averaging 655 mm yearly.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The seasons in Alella, bring significant changes in precipitation. The wettest month, October, receives moderate rainfall, with an average of 98 mm of precipitation.

This rainfall is distributed across 11 rainy days. In contrast, the driest month, July, experiences much less rainfall, totaling 29 mm over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

October, the city’s wettest month, has a maximum daytime temperature of 22°C. During the driest month July you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Alella Temperature page.

Annual Precipitation in Spain

The map below shows the annual precipitation across Spain. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Alella’s average annual precipitation is 655 mm. Let’s compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm, with rain and snow contributing to its humid climate.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

For more detailed information about Alella’s weather, including sunshine hours, humidity levels, and temperature data, visit our Alella Climate page.