With a population of around 1,400, Larkollen sits in Ostfold, Norway. The city operates in the Europe/Oslo time zone.
In 2025, Larkollen recorded an average annual temperature of 48°F. The hottest temperatures reached 86°F in July; the coolest were 10°F in January. Total precipitation for the year was 42 inches, with the wettest month being October. Snowfall for the year totaled approximately 11 inches.
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