Frederick is a city of approximately 11,400 people in Colorado, United States. Located in the Mountain Time Zone at 40.1°N latitude.
In 2025, Frederick recorded an average annual temperature of 51°F — right at the 30-year normal of 51°F. The hottest day reached 101°F in August; the coldest was -14°F in January. Total precipitation was 19 inches (wetter than usual). The wettest month was May.
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