Grand Manan Island (NB) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Grand Manan Island, New Brunswick, Canada. 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.

Grand Manan Island has a relatively rain/snowy climate with high precipitation levels, averaging 1403 mm (55 in) of rain/snowfall annually.

Monthly Precipitation Levels

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

While snow/rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 150 mm (5.9 in) of precipitation, spread over 13 snowy/rainy days.

In contrast, July experiences a drier climate, with about 85 mm (3.3 in) of rainfall spread across 11 rainy days.

December, the wettest month, has a maximum daytime temperature of 5°C (41°F). During the driest month July you can expect a temperature of 18°C (64°F). For more detailed insights into the city's temperatures, visit our Grand Manan Island Temperature page.

Grand Manan Island's average annual precipitation is 1403 mm (55 in). Let's compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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 Grand Manan Island (NB):

• 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 Grand Manan Island (NB)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Grand Manan Island (NB) Climate page.