Kahului (HI) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Kahului (HI). 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.

Generally, Kahului receives mid-range precipitation levels, with 593 mm annually.

Monthly Precipitation Levels

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

Kahului can be quite wet during March, receiving approximately 74 mm of precipitation over 12 rainy days.

In contrast June, experiences much drier conditions, with 32 mm of rainfall, spread across 7 rainy days.

March, the city’s wettest month, has a maximum daytime temperature of 26°C. During the driest month June you can expect a temperature of 29°C. For more detailed insights into the city’s temperatures, visit our Kahului 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

Kahului’s average annual precipitation is 593 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

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

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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 Kahului (HI)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Kahului (HI) Climate page.