Casalvieri Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Casalvieri, Lazio, Italy. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.

Casalvieri has a relatively rain/snowy climate with high precipitation levels, averaging 1188 mm (47 in) of rain/snowfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Casalvieri can be quite wet during November, receiving approximately 173 mm (6.8 in) of precipitation over 14 rainy days.

In contrast August, experiences much drier conditions, with 36 mm (1.4 in) of rainfall, spread across 7 rainy days.

November, the wettest month, has a maximum daytime temperature of 14°C (57°F). During the driest month August you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Casalvieri Temperature page.

Annual Rainfall in Italy: City Comparison

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

Casalvieri vs World: Rainfall Compared

Casalvieri's average annual precipitation is 1188 mm (47 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

Climate change is affecting precipitation patterns worldwide, including Casalvieri:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

• "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 (15 inches) wide and 20 cm (7.9 inches) 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 (103 feet) fell during the winter of 1972.

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