Garrison, in Maryland, United States, is home to roughly 8,800 people in the Eastern Time Zone at 39.4°N latitude.
In 2025, Garrison recorded an average annual temperature of 55°F — about 1.6°F below the 30-year normal of 56°F. The hottest day reached 98°F in June; the coldest was 5°F in January. Total precipitation was 48 inches (wetter than usual). Snowfall totaled 6 inches, below the 19-inch average. The wettest month was May.
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