About Groenlo, Gelderland's Climate & Weather History

With a population of around 10,000, Groenlo sits in Gelderland, Netherlands. The city operates in the Central European time zone.

In 2025, Groenlo recorded an average annual temperature of 52°F. The hottest temperatures reached 95°F in July; the coolest were 22°F in December. Total precipitation for the year was 28 inches, with the wettest month being July. Snowfall for the year totaled approximately 3 inches.