Gualala (CA) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Gualala (CA). The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Generally, Gualala receives mid-range precipitation levels, with 852 mm annually.

Monthly Precipitation Levels

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

Gualala can be quite wet during December, receiving approximately 186 mm of precipitation over 15 rainy days.

In contrast August, experiences much drier conditions, with 0.4 mm of rainfall, spread across 0 rainy days.

December, the city’s wettest month, has a maximum daytime temperature of 13°C and receives 160 hours of sunshine. During the driest month August you can expect a temperature of 17°C. For more detailed insights into the city’s temperatures, visit our Gualala 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

Gualala’s average annual precipitation is 852 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.

Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.

In Brisbane, Australia, the annual precipitation is 979 mm, making it wetter than Sydney.

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 Gualala (CA)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Gualala (CA) Climate page.