About Mellingen, Aargau's Climate & Weather History

Mellingen is a city of approximately 4,200 people in Aargau, Switzerland. Located in the Europe/Zurich time zone at 47.4°N latitude.

In 2025, Mellingen recorded an average annual temperature of 52°F. The hottest temperatures reached 94°F in August; the coolest were 22°F in December. Total precipitation for the year was 46 inches, with the wettest month being September. Snowfall for the year totaled approximately 5 inches.