Richmond (CA) Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows the average amount of rainfall per month in Richmond (CA). 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, Richmond receives mid-range precipitation levels, with 534 mm annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
December, the city’s wettest month, has a maximum daytime temperature of 15°C and receives 160 hours of sunshine. During the driest month July you can expect a temperature of 23°C. For more detailed insights into the city’s temperatures, visit our Richmond 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
Richmond’s average annual precipitation is 534 mm. Let’s compare this to some popular worldwide tourist destinations:In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
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.
How Does Precipitation Affect Local Climate?
Precipitation has a very strong role in determining the local climate and ecosystem:
- Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.
- Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.
For more detailed information about Richmond (CA)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Richmond (CA) Climate page.
Current rainfall in Richmond (CA)
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