La Jolla Rainfall & Precipitation: Monthly Averages and Year-Round Insights

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

La Jolla is known for its low rainfall, with yearly precipitation amounts around 245 mm.

Monthly Precipitation Levels

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

La Jolla can be quite wet during December, receiving approximately 64 mm of precipitation over 7 rainy days.

In contrast June, experiences much drier conditions, with 0.9 mm of rainfall, spread across a single rainy day.

December, the city’s wettest month, has a maximum daytime temperature of 18°C and receives 231 hours of sunshine. During the driest month June you can expect a temperature of 22°C. For more detailed insights into the city’s temperatures, visit our La Jolla Temperature page.

Annual Precipitation in the United States of America

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

Amsterdam Precipitation Compared World Wide

La Jolla’s average annual precipitation is 245 mm. Let’s compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

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

• "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 La Jolla’s weather, including sunshine hours, humidity levels, and temperature data, visit our La Jolla Climate page.