Dahlem is a city of approximately 4,200 people in North Rhine-Westphalia, Germany. Located in the Central European time zone at 50.4°N latitude.
In 2025, Dahlem recorded an average annual temperature of 48°F. The hottest temperatures reached 90°F in July; the coolest were 15°F in January. Total precipitation for the year was 29 inches, with the wettest month being January. Snowfall for the year totaled approximately 7 inches.
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