With a population of around 8,000, Obersiggenthal sits in Aargau, Switzerland. The city operates in the Europe/Zurich time zone.
In 2025, Obersiggenthal recorded an average annual temperature of 51°F. The hottest temperatures reached 95°F in August; the coolest were 19°F in January. Total precipitation for the year was 45 inches, with the wettest month being October. Snowfall for the year totaled approximately 4 inches.
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