Black Rock Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Black Rock, Tobago, Trinidad & Tobago. This average is based on long-term data collected between 1990 and 2020. Now, let's explore all the details to give you a full picture.

Black Rock is known for its substantial rainfall, with annual precipitation reaching 1472 mm (58 in).

Monthly Precipitation Levels

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

Black Rock can be quite wet during November, receiving approximately 192 mm (7.6 in) of precipitation over 23 rainy days.

In contrast March, experiences much drier conditions, with 38 mm (1.5 in) of rainfall, spread across 10 rainy days.

November, the wettest month, has a maximum daytime temperature of 29°C (84°F). During the driest month March you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Black Rock Temperature page.

Black Rock's average annual precipitation is 1472 mm (58 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• 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 Black Rock's weather, including sunshine hours, humidity levels, and temperature data, visit our Black Rock Climate page.