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

This page shows the average amount of rainfall per month in Virginia. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Generally, Virginia has a moderate amount of precipitation, averaging 985 mm of rainfall annually.

Monthly Precipitation Levels

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

Precipitation levels in Virginia remain relatively steady throughout the year. August has the most rain, with 93 mm over 19 days. In March, this drops slightly to 70 mm, making the city's climate fairly predictable.

August, the wettest month, has a maximum daytime temperature of 19°C. The city receives 157 hours of sunshine in this period. During the driest month March you can expect a temperature of 11°C. For more detailed insights into the city’s temperatures, visit our Virginia Temperature page.

Annual Precipitation in Ireland

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

Amsterdam Precipitation Compared World Wide

Virginia’s average annual precipitation is 985 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

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

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

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