Oldcastle Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Oldcastle, Meath, Ireland. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.
On average, Oldcastle receives a reasonable amount of rain/snowfall, with an annual precipitation of 999 mm (39 in).
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Year-round, Oldcastle has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 94 mm (3.7 in), and the driest month, March, with 72 mm (2.8 in), is minimal.
August, the wettest month, has a maximum daytime temperature of 19°C (66°F). The city receives 157 hours of sunshine in this period. During the driest month March you can expect a temperature of 11°C (52°F). For more detailed insights into the city's temperatures, visit our Oldcastle Temperature page.
Annual Rainfall in Ireland: City Comparison
The map below shows the annual precipitation across Ireland. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Oldcastle vs World: Rainfall Compared
Oldcastle's average annual precipitation is 999 mm (39 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.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
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.
Climate change is affecting precipitation patterns worldwide, including Oldcastle:
- 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 Oldcastle's weather, including sunshine hours, humidity levels, and temperature data, visit our Oldcastle Climate page.
