Milwaukee (WI) Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Milwaukee (WI). 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, Milwaukee experiences moderate precipitation patterns, averaging 951 mm yearly.

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, June receives substantial rainfall, averaging 134 mm of precipitation, recorded across 12 rainy days.

In contrast, the drier season, January brings less snowfall, with 36 mm over 10 snowy days.

June, the city’s wettest month, has a maximum daytime temperature of 25°C and receives 305 hours of sunshine. During the driest month January you can expect a temperature of -1°C. For more detailed insights into the city’s temperatures, visit our Milwaukee 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

Milwaukee’s average annual precipitation is 951 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.

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

Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.

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

• 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 Milwaukee (WI)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Milwaukee (WI) Climate page.