With a population of around 4,400, Lawrenceville sits in Illinois, United States. The city operates in the Central Time Zone.
In 2025, Lawrenceville recorded an average annual temperature of 56°F — right at the 30-year normal of 56°F. The hottest day reached 94°F in July; the coldest was -5°F in January. Total precipitation was 45 inches (wetter than usual). The wettest month was April.
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