Rosta Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Rosta, Piedmont, Italy. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.
Rosta experiences significant rain/snowfall throughout the year, averaging 1456 mm (57 in) of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, May receives substantial rainfall, averaging 163 mm (6.4 in) of precipitation, recorded across 16 rainy days.
In contrast, the driest month, January brings less snow/rainfall, with 67 mm (2.6 in) over 9 snowy/rainy days.
May, the wettest month, has a maximum daytime temperature of 20°C (68°F). The city receives 196 hours of sunshine in this period. During the driest month January you can expect a temperature of 7°C (45°F). For more detailed insights into the city's temperatures, visit our Rosta 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.
heavy rainfall
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moderate
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Rosta vs World: Rainfall Compared
Rosta's average annual precipitation is 1456 mm (57 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.
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.
- "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 Rosta's weather, including sunshine hours, humidity levels, and temperature data, visit our Rosta Climate page.
