The Average December Temperature in America’s Biggest Cities

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11. New Orleans, Louisiana
> High average December temperature, 1991-2020: 65°F
> Low average December temperature, 1991-2020: 48°F

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10. San Antonio, Texas
> High average December temperature, 1991-2020: 65°F
> Low average December temperature, 1991-2020: 42°F

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9. San Diego, California
> High average December temperature, 1991-2020: 66°F
> Low average December temperature, 1991-2020: 50°F

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8. Houston, Texas
> High average December temperature, 1991-2020: 66°F
> Low average December temperature, 1991-2020: 48°F

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7. Phoenix, Arizona
> High average December temperature, 1991-2020: 66°F
> Low average December temperature, 1991-2020: 45°F