Rochester Hills (MI) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Rochester Hills, Michigan, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's explore all the details to give you a full picture.

Generally, Rochester Hills experiences moderate precipitation patterns, averaging 905 mm (36 in) yearly.

Monthly Precipitation Levels

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

While rainfall varies throughout the year, each season offers its own charm. May brings wetter days averaging 110 mm (4.3 in) of precipitation, spread over 14 rainy days.

In contrast, February experiences a drier climate, with about 51 mm (2 in) of snowfall spread across 11 snowy days.

May, the wettest month, has a maximum daytime temperature of 21°C (70°F). The city receives 277 hours of sunshine in this period. During the driest month February you can expect a temperature of 0°C (32°F). For more detailed insights into the city's temperatures, visit our Rochester Hills Temperature page.

Rochester Hills's average annual precipitation is 905 mm (36 in). Let's compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

• "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 (15 inches) wide and 20 cm (7.9 inches) 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 (103 feet) fell during the winter of 1972.

For more detailed information about Rochester Hills (MI)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Rochester Hills (MI) Climate page.