Black Jack is a city of approximately 6,900 people in Missouri, United States. Located in the Central Time Zone at 38.8°N latitude.
In 2025, Black Jack recorded an average annual temperature of 57°F — right at the 30-year normal of 57°F. The hottest day reached 97°F in July; the coldest was -1°F in January. Total precipitation was 45 inches (wetter than usual). The wettest month was April.
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