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Belfast (ME) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Belfast (ME). The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Belfast has a relatively rain/snowy climate with high precipitation levels, averaging 1355 mm of rain/snowfall annually.

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. October brings wetter days averaging 163 mm of precipitation, spread over 12 rainy days.

In contrast, January experiences a drier climate, with about 91 mm of snowfall spread across 10 snowy days.

October, the city’s wettest month, has a maximum daytime temperature of 15°C. During the driest month January you can expect a temperature of -1°C. For more detailed insights into the city’s temperatures, visit our Belfast 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.

Annual
Map not visible? Whoops sorry! Please refresh the page.
Legend heavy rainfall high moderate low almost none
Heavy annual rainfall has been defined as more than 1000 mm precipitation. High: 600 mm to 1000 mm. Moderate: 250 mm to 600 mm. Low: less than 250 mm.

Amsterdam Precipitation Compared World Wide

Belfast’s average annual precipitation is 1355 mm. Let’s compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.

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

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

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

Interesting weather facts

  • "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 wide and 20 cm 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 fell during the winter of 1972.

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


Current rainfall in Belfast (ME)

Sun   Dec 22
-8°C | -15°C
N 7 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Dec 23
-4°C | -14°C
NW 3 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
-3°C | -8°C
N 4 m/s
13 mm
broken clouds and snow

broken clouds and snow

Interested in more climate information?

This site provides you with all the information you need about the climate in Belfast.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.