Rockland (MA) Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Rockland, Massachusetts, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let's break down all the details for a clearer picture.
Rockland has a notably wet climate with abundant precipitation, recording 1295 mm (51 in) of rain/snowfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Despite minor fluctuations, Rockland enjoys fairly consistent precipitation throughout the year. In December, you can expect around 132 mm (5.2 in) of precipitation, while in September, Rockland receives about 83 mm (3.3 in).
December, the wettest month, has a maximum daytime temperature of 7°C (45°F). The city receives 141 hours of sunshine in this period. During the driest month September you can expect a temperature of 24°C (75°F). For more detailed insights into the city's temperatures, visit our Rockland Temperature page.
Annual Rainfall in the United States of America: City Comparison
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.
heavy rainfall
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Rockland vs World: Rainfall Compared
Rockland's average annual precipitation is 1295 mm (51 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Rockland (MA)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Rockland (MA) Climate page.
