With a population of around 9,900, Lake Monticello sits in Virginia, United States. The city operates in the Eastern Time Zone.
In 2025, Lake Monticello recorded an average annual temperature of 58°F — about 1.5°F above the 30-year normal of 56°F. The hottest day reached 100°F in June; the coldest was 7°F in January. Total precipitation was 36 inches (drier than usual). The wettest month was May.
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