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How do temperature and rainfall differ between Mainz and the Eifel region?

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Mainz: St. Martin's Cathedral — Rhineland-Palatinate St. Martin's Cathedral in Mainz, Germany.

In the state of Rhineland-Palatinate, climatic conditions vary significantly between the city of Mainz and the Eifel upland region.1

Mainz: This area experiences an average annual temperature in the low 50s F (about 10 °C) and receives an average yearly rainfall of approximately 20 inches (500 mm).1
Eifel: In contrast, the northwestern part of this highland region is cooler and wetter, with an average annual temperature in the low 40s F (about 6 °C) and an average annual rainfall of about 30 inches (750 mm).1

These differences reflect the geographical transition from the lower-lying river valleys to the higher, wooded upland terrain of the Eifel, which averages 2,000 feet (600 metres) in elevation.1