Greencastle Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Greencastle, Tyrone County, United Kingdom. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.

Greencastle is known for its substantial rain/snowfall, with annual precipitation reaching 1098 mm (43 in).

Monthly Precipitation Levels

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

The wettest period in Greencastle occurs in August, which receives around 102 mm (4 in) of precipitation. During the driest month, March, Greencastle experiences moderate rainfall, totaling approximately 81 mm (3.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.

August, the wettest month, has a maximum daytime temperature of 19°C (66°F). The city receives 140 hours of sunshine in this period. During the driest month March you can expect a temperature of 10°C (50°F). For more detailed insights into the city's temperatures, visit our Greencastle Temperature page.

Greencastle's average annual precipitation is 1098 mm (43 in). Let's compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

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 Greencastle:

• 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.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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