Butterworth Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Butterworth. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Butterworth experiences significant rainfall throughout the year, averaging 2563 mm of precipitation annually.

Monthly Precipitation Levels

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

Significant seasonal changes in precipitation occur throughout the year. During the wet season, October receives substantial rainfall, averaging 343 mm of precipitation, recorded across 24 rainy days.

In contrast, the drier season, February brings less rainfall, with 123 mm over 9 rainy days.

October, the wettest month, has a maximum daytime temperature of 31°C. The city receives 161 hours of sunshine in this period. During the driest month February you can expect a temperature of 32°C. For more detailed insights into the city’s temperatures, visit our Butterworth Temperature page.

Annual Precipitation in Malaysia

The map below shows the annual precipitation across Malaysia. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Butterworth’s average annual precipitation is 2563 mm. Let’s compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

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

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

• 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 Butterworth’s weather, including sunshine hours, humidity levels, and temperature data, visit our Butterworth Climate page.