New Castle (DE) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in New Castle (DE). The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

New Castle is known for its substantial rain/snowfall, with annual precipitation reaching 1233 mm.

Monthly Precipitation Levels

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

While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 145 mm of precipitation, spread over 13 rainy days.

In contrast, November experiences a drier climate, with about 75 mm of rainfall spread across 9 rainy days.

June, the city’s wettest month, has a maximum daytime temperature of 28°C. During the driest month November you can expect a temperature of 13°C. For more detailed insights into the city’s temperatures, visit our New Castle Temperature page.

Annual Precipitation in the United States of America

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.

Amsterdam Precipitation Compared World Wide

New Castle’s average annual precipitation is 1233 mm. Let’s compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm, characterized by wet winters and dry summers typical of the Mediterranean climate.

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

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

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including New Castle (DE):

• 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.

For more detailed information about New Castle (DE)’s weather, including sunshine hours, humidity levels, and temperature data, visit our New Castle (DE) Climate page.